JP2007302704A - External preparation for skin and skin-bleaching agent - Google Patents

External preparation for skin and skin-bleaching agent Download PDF

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JP2007302704A
JP2007302704A JP2007222324A JP2007222324A JP2007302704A JP 2007302704 A JP2007302704 A JP 2007302704A JP 2007222324 A JP2007222324 A JP 2007222324A JP 2007222324 A JP2007222324 A JP 2007222324A JP 2007302704 A JP2007302704 A JP 2007302704A
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skin
external preparation
corn
rhizome
extract
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JP4457133B2 (en
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Kimie Baba
きみ江 馬場
Koji Yamaguchi
耕司 山口
Kazuo Takeuchi
一男 竹内
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ANDS Corp
YAMADA YAKKEN KK
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YAMADA YAKKEN KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a skin-bleaching agent which can be suitably compounded with an external preparation for the skin, and to provide an external preparation for the skin which is excellent in skin-bleaching action and comprises the skin-bleaching agent. <P>SOLUTION: The skin-bleaching agent comprises a nonaqueous solvent extract (e.g. an ethyl acetate extract) of a non-rhizome part of Nuphar japonicum and/or Nuphar Pumilum as an active ingredient. The external preparation for the skin contains the same. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、コウホネ(Nuphar japonicum)及び/又はネムロコウホネ(Nuphar Pumilum)の非根茎部、即ち根茎以外の部位の抽出物を有効成分とする美白剤及び皮膚外用剤に関するものである。   The present invention relates to a whitening agent and an external preparation for skin containing as an active ingredient an extract of a non-rhizome part of Nuphar japonicum and / or Nuphar Pumilum, that is, a part other than the rhizome.

従来、コウホネやネムロコウホネは、その根茎部が生薬センコツとして利用されてきた。また、皮膚外用剤としても、やはりその根茎部の粉末や水抽出物、低級アルコール、含水低級アルコール抽出物等が、例えば、「粘着性膏体」として(特開昭62−36328号公報)、日焼け後のほてり、かみそりまけ、肌あれを防ぐための「皮膚外用剤」として(特開昭62−51606号公報(下記特許文献1))、洗髪後頭髪をコンディショニングする「頭髪化粧料」として(特開昭63−57313号公報)、洗浄剤による肌あれを防ぐ「洗浄料」として(特開昭63−57696号公報)、収れん効果を期待する「化粧料」として(特開昭64−47708号公報)、優れた養毛効果を有する「養毛料」として(特開平5−255044号公報)、コウジ酸に併用する「皮膚外用剤」として(特開平7−25762号公報(下記特許文献2))、アトピー性皮膚炎に対する皮膚外用剤や抗アレルギー剤に配合する「インターロイキン4産生抑制剤」として(特開平10−279491号公報(下記特許文献3))、ニキビを予防する「ニキビ予防治療剤」として(特開2001−322943号公報)、また「発毛剤」などとして(特開2002−47146号公報)、機能検索が行われている。このように、従来、コウホネやネムロコウホネは、その地下部である根茎部のみが実用に供されており、地上部である非根茎部については、利用されずに廃棄されていた。またそのため、コウホネおよびネムロコウホネの非根茎部の抽出物、特に水以外の溶媒抽出物については、その機能がこれまで全く明らかにされていなかったのが実情である。   Conventionally, the rhizome part has been used as a herbal medicinal knives. In addition, as a skin external preparation, the rhizome part powder, water extract, lower alcohol, hydrous lower alcohol extract, etc., for example, as “adhesive plaster” (Japanese Patent Laid-Open No. Sho 62-36328), As a “skin external preparation” for preventing hot flashes after tanning, razor rash, and rough skin (Japanese Patent Application Laid-Open No. 62-51606 (Patent Document 1) below), as a “hair cosmetic” for conditioning hair after washing ( JP-A-63-57313), “cleaning agent” for preventing skin irritation caused by a cleaning agent (JP-A-63-57696), and “cosmetics” expecting an astringent effect (JP-A-64-47708) No. 5) as a “hair conditioner” having an excellent hair nourishing effect (Japanese Patent Laid-Open No. 5-255044), and as a “skin external preparation” used in combination with kojic acid (Japanese Patent Laid-Open No. 7-25762) Permissible literature 2)), as an “interleukin 4 production inhibitor” (JP-A-10-279491 (Patent Document 3 below)) to prevent acne as an external skin preparation or antiallergic agent for atopic dermatitis Function searches are being performed as “acne preventive and therapeutic agents” (Japanese Patent Laid-Open No. 2001-322943) and “hair growth agents” (Japanese Patent Laid-Open No. 2002-47146). Thus, conventionally, only the rhizome part, which is the underground part, has been put to practical use for the kohone and nemuro kone, and the non-rhizome part, which is the above-ground part, has been discarded without being used. For this reason, the functions of non-rhizome extracts of kohone and nemuro kone, particularly solvent extracts other than water, have not been clarified so far.

ところで、化粧料を始めとする皮膚外用剤に期待される効能の一つとして美白作用がある。従来、化粧料に美白効果を付与するために専ら用いられてきたのはビタミンCであるが、ビタミンCはその光脆弱性のため皮表に用いる化粧料の美白剤としてはほとんど実効を期待し難く、そのためにそれに代わるものとして、生薬一般において、チロシナーゼ抑制機能を検索し、抑制率の高いものを選別し用いることが行われている。チロシナーゼは皮膚のメラニン生成系において、チロシンからDOPA、更にDOPAからDOPAキノンへ反応を促進させる酵素であり、DOPAキノンはさらに酸化、脱炭酸、重合などの過程を経てメラニン色素になるので、チロシナーゼの抑制が美白効果につながると期待されるのである。しかしながら、実際の皮膚においてチロシナーゼ抑制機能がメラニン生成減に短絡しないこともあり、美白を損なう要素としてのメラニン生成を抑制することの確かな美白剤のほうが、美白への貢献度が高い。すなわち、メラニン生成において起因とされるチロシナーゼの動向より、結果としてのメラニン量のほうが美白機能予測のたすけになりやすい。そのようなこともあって、チロシナーゼ抑制機能が実測されている生薬は多いものの、実際に皮膚への応用で実用されている美白剤はアルブチン(ウワウルシ、コケモモ葉由来)やコウジ酸など数えるほどでしかない。   By the way, there is a whitening effect as one of the effects expected for external preparations for skin including cosmetics. Conventionally, vitamin C has been used exclusively for imparting a whitening effect to cosmetics, but vitamin C is expected to be most effective as a whitening agent for cosmetics used on the skin due to its light vulnerability. Therefore, as a substitute for that, searching for a tyrosinase inhibitory function in general herbal medicines and selecting and using one having a high inhibition rate is performed. Tyrosinase is an enzyme that promotes the reaction from tyrosine to DOPA and further from DOPA to DOPA quinone in the melanin production system of skin, and DOPA quinone further becomes a melanin pigment through processes such as oxidation, decarboxylation, and polymerization. The suppression is expected to lead to a whitening effect. However, the tyrosinase inhibitory function in actual skin may not be short-circuited to the decrease in melanin production, and a certain whitening agent that suppresses melanin production as an element that impairs whitening has a higher contribution to whitening. That is, the resulting amount of melanin is more likely to help predict whitening function than the trend of tyrosinase attributed to melanin production. For this reason, there are many herbal medicines whose tyrosinase-inhibiting function has been measured, but whitening agents that are actually used in skin applications include arbutin (from walrus and cowberry leaves) and kojic acid. There is only.

一方、ヒアルロニダーゼ活性阻害についていえば、ヒアルロニダーゼは、高等動物の各種臓器のリソゾーム、睾丸、皮膚を始めとする様々な箇所に存在する生体膜成分ヒアルロン酸の加水分解酵素であり、皮膚の炎症時に活性化されて周辺組織を破壊し、炎症系細胞の浸入を容易にする。そのため、ヒアルロニダーゼの活性を阻害することにより、抗アレルギー作用、抗炎症効果が期待できる。また、保湿作用成分であるヒアルロン酸を分解するヒアルロニダーゼの活性亢進により、肌荒れやかさつきが起こり、これが皺や弛みの一因になると考えられる。そのため、ヒアルロニダーゼの活性阻害により、皮膚の皺や弛みを含めた保湿老化予防としても期待できる。従来技術において、生薬センコツの水抽出物がヒアルロニダーゼ阻害作用を持つことが報告されている(「生薬の皮膚関連酵素に対する阻害作用」(下記非特許文献1))が、ここで扱われている技術も、やはり、生薬センコツの水抽出物、即ちコウホネ根茎部の水抽出物であり、コウホネの非根茎部の抽出物に関するものではない。また、ヒアルロニダーゼ活性阻害剤は、化粧料などの皮膚外用剤にあっては皮内吸収が望ましく、皮内吸収ということであれば、水抽出物よりも非水溶媒抽出物のほうが効率的である。   On the other hand, with regard to the inhibition of hyaluronidase activity, hyaluronidase is a hydrolase of the biomembrane component hyaluronic acid that is present in various parts of various animal organs including lysosomes, testis, and skin, and is active during inflammation of the skin. To destroy surrounding tissues and facilitate infiltration of inflammatory cells. Therefore, antiallergic action and anti-inflammatory effect can be expected by inhibiting the activity of hyaluronidase. In addition, it is considered that the increased activity of hyaluronidase that decomposes hyaluronic acid, which is a moisturizing component, causes rough skin and roughness, which contributes to wrinkles and looseness. Therefore, by inhibiting the activity of hyaluronidase, it can be expected to prevent moisturizing aging including skin wrinkles and looseness. In the prior art, it has been reported that the water extract of herbal medicine Senkotsu has a hyaluronidase inhibitory action (“inhibitory action of herbal medicines on skin-related enzymes” (Non-patent Document 1 below)), but the technology dealt with here Is also an aqueous extract of a herbal medicine, that is, an aqueous extract of a rhizome of a corn plant, and is not related to an extract of a non-rhizome of a corn plant. In addition, hyaluronidase activity inhibitors are preferably absorbed intradermally in skin preparations such as cosmetics. In terms of intradermal absorption, a non-aqueous solvent extract is more efficient than an aqueous extract. .

これまで、美白作用やヒアルロニダーゼ活性作用を有する種々の物質が化粧料を始めとする皮膚外用剤への配合剤として使用されているが、未だよくその期待に耐えるものは乏しく、コウホネ根茎部の水抽出物についても同断であった。
特開昭62−51606号公報 特開平7−25762号公報 特開平10−279491号公報 沢辺善之、他4名、「生薬の皮膚関連酵素に対する阻害作用」、薬学雑誌、1998年、118(9)、p.423−429
Up to now, various substances having whitening and hyaluronidase activity have been used as a formulation for cosmetics and other external preparations for skin. The same was true for the extract.
JP-A-62-51606 JP 7-25762 A JP 10-279491 A Yoshiyuki Sawabe and 4 others, “Inhibitory action of crude drugs on skin-related enzymes”, Pharmaceutical Journal, 1998, 118 (9), p. 423-429

本発明の目的は、皮膚外用剤に配合するのに好適な美白剤を提供することにあり、また、美白作用に優れる皮膚外用剤を提供することを目的とする。   An object of the present invention is to provide a whitening agent suitable for blending in an external preparation for skin, and an object thereof is to provide an external preparation for skin having an excellent whitening effect.

本発明者らは、従来利用されずに廃棄されていたコウホネ及びネムロコウホネの非根茎部に着目して鋭意研究していたところ、意外にもその非水溶媒抽出物が優れたメラニン生成抑制機能を有し、またヒアルロニダーゼ活性阻害作用を持つことを見い出し、本発明を完成するに至った。   The inventors of the present invention have intensively studied paying attention to the non-rhizome portions of corn and nemuro corn that have been discarded without being used in the past, and surprisingly, the non-aqueous solvent extract has an excellent melanin production suppressing function. And has been found to have a hyaluronidase activity inhibitory action, and the present invention has been completed.

すなわち、本発明の請求項1に係る発明は、コウホネ及び/又はネムロコウホネの非根茎部の非水溶媒抽出物を含有する皮膚外用剤である。   That is, the invention according to claim 1 of the present invention is an external preparation for skin containing a non-aqueous solvent extract of a non-rhizome part of corn and / or nemur.

請求項2に係る発明は、コウホネ及び/又はネムロコウホネの非根茎部の非水溶媒抽出物を有効成分としてなる美白剤である。   The invention according to claim 2 is a whitening agent comprising, as an active ingredient, a non-aqueous solvent extract of non-rhizome part of corn and / or nemuro corn.

請求項3に係る発明は、コウホネ及び/又はネムロコウホネの非根茎部から抽出された油溶性物質を有効成分としてなる美白剤である。   The invention according to claim 3 is a whitening agent comprising, as an active ingredient, an oil-soluble substance extracted from a non-rhizome portion of corn and / or nemur.

請求項4に係る発明は、請求項2又は3記載の美白剤を含有するものである。   The invention according to claim 4 contains the whitening agent according to claim 2 or 3.

本発明によれば、コウホネ及び/又はネムロコウホネの非根茎部からの抽出物が優れた美白作用を有するため、これを配合した化粧料を始めとする皮膚外用剤において優れた美白作用を付与することができる。   According to the present invention, the extract from the non-rhizome of corn and / or nemuro corn has an excellent whitening action, and therefore, it imparts an excellent whitening action in skin external preparations including cosmetics formulated with this. Can do.

また、本発明では、従来は廃棄されていたコウホネ及び/又はネムロコウホネの非根茎部を利用するものであるため、廃棄物の有効利用が図られると共に、非根茎部の利用であれば、根茎部はそのままにして非根茎部のみを採取することができ、その場合、残された根茎部から再び非根茎部を成長させることができるため、資源の有効活用も図られる。   Further, in the present invention, since the non-rhizome portion of the corn and / or nemuro kone that has been discarded conventionally is used, the waste can be effectively used, and if the non-rhizome portion is used, the rhizome portion is used. In this case, only the non-rhizome portion can be collected, and in this case, the non-rhizome portion can be grown again from the remaining rhizome portion, so that resources can be effectively used.

以下、本発明の実施に関連する事項について詳細に説明する。   Hereinafter, matters related to the implementation of the present invention will be described in detail.

コウホネ(Nuphar japonicum)及び/又はネムロコウホネ(N. Pumilum)はスイレン科の植物であり、その根茎部はセンコツ(川骨)という名称で煎じて滋養強壮、体質虚弱の改善、生理不順などに用いられる。生薬製剤としても、また化粧料等に配合する薬剤としても、根茎部以外の抽出物の実利用は未見である。   Nuphar japonicum and / or N. Pumilum is a water lily family plant whose root is roasted under the name of centrum (river bone) and used for nourishment, improvement of physical condition, irregular physiology, etc. . The actual use of extracts other than rhizomes has not been seen as a crude drug preparation or a drug to be blended in cosmetics and the like.

本発明においては、このようなコウホネ及び/又はネムロコウホネの根茎部以外の部位である非根茎部、即ち、通常植物での地上部にあたる部位を、水以外の溶媒により抽出し、その抽出物を皮膚外用剤などに配合する薬剤として利用する。その調製方法は特に限定されないが、例えば次のような抽出方法を採用することができる。   In the present invention, a non-rhizome part that is a part other than the rhizome part of such corn and / or nemper, that is, a part corresponding to the above-ground part in a normal plant is extracted with a solvent other than water, and the extract is extracted from the skin. It is used as a medicine to be blended with external preparations. Although the preparation method is not specifically limited, For example, the following extraction methods can be adopted.

根茎部を除いたコウホネ及び/又はネムロコウホネを水洗し,通常公知の方法で乾燥し細砕して抽出溶媒と共に抽出する。乾燥方法は風乾、熱風乾燥、凍結乾燥等が挙げられ、特に限定するものでないが、凍結乾燥によるのが好ましい。   The potato and / or nemuro potato, excluding the rhizome, is washed with water, dried, pulverized and extracted with an extraction solvent by a generally known method. Examples of the drying method include air drying, hot air drying, freeze drying, and the like. Although not particularly limited, freeze drying is preferable.

抽出に用いられる溶媒は水以外の溶媒であれば、これも特に限定するものでないが、例えば、メタノール、エタノール、プロパノール、イソプロパノールなどの低級アルコール、1,3−ブチレングリコール、プロピレングリコール、ジプロピレングリコール、グリセリンなどの多価アルコール、エチルエーテル、プロピルエーテルなどのエーテル類、酢酸エチル、酢酸ブチルなどのエステル類、アセトン、エチルメチルケトンなどのケトン類、n−ヘキサン、ベンゼンなどの炭化水素、クロロホルム、塩化メチレンなどのハロゲン溶剤などが挙げられ、これらはそれぞれ単独で用いても二種以上組合せて用いてもよい。これらのうち、優れた美白作用を得るために好適な溶媒としては、上記したエーテル類、エステル類、ケトン類、炭化水素及びハロゲン溶剤などの中間極性を有する有機溶媒が挙げられ、とりわけ酢酸エチルなどの酢酸エステルを始めとした脂肪酸エステルが好ましく、その場合、美白作用とヒアルロニダーゼ活性阻害作用との双方に優れたものが得られる。このように美白作用とヒアルロニダーゼ活性阻害作用とが併存する場合、ヒアルロニダーゼ活性阻害作用により抗炎症作用が期待できることから、肌荒れを抑制しながら美白効果が得られるというメリットがある。このメリットは、従来の美白剤に刺激性を持つものが多いことに鑑みると、そのような美白剤を使用することができなかった皮膚が弱い人に対しても使用できる美白剤を提供できるという点で有益である。更に、ヒアルロニダーゼ活性阻害により上記したように皮膚の皺や弛みを予防する効果が期待できるので、この効果と美白作用とを併存させることにより、加齢に伴うメラニン増加と皺の発生増加を予防することができ、よって皮膚の老化予防剤として好適である。   The solvent used for extraction is not particularly limited as long as it is a solvent other than water. For example, lower alcohols such as methanol, ethanol, propanol, isopropanol, 1,3-butylene glycol, propylene glycol, dipropylene glycol , Polyhydric alcohols such as glycerin, ethers such as ethyl ether and propyl ether, esters such as ethyl acetate and butyl acetate, ketones such as acetone and ethyl methyl ketone, hydrocarbons such as n-hexane and benzene, chloroform, Examples include halogen solvents such as methylene chloride, and these may be used alone or in combination of two or more. Among these, suitable solvents for obtaining an excellent whitening action include organic solvents having an intermediate polarity such as the ethers, esters, ketones, hydrocarbons and halogen solvents described above, and particularly ethyl acetate and the like. Of these, fatty acid esters such as acetic acid esters are preferred, and in this case, those excellent in both the whitening action and the hyaluronidase activity inhibiting action can be obtained. Thus, when the whitening action and the hyaluronidase activity inhibitory action coexist, the anti-inflammatory action can be expected by the hyaluronidase activity inhibitory action, and thus there is a merit that the whitening effect can be obtained while suppressing rough skin. In view of the fact that many of the conventional whitening agents have irritation, this merit can provide a whitening agent that can be used even for people with weak skin who could not use such whitening agents. Useful in terms. Furthermore, since the effect of preventing wrinkles and sagging of the skin can be expected by inhibiting hyaluronidase activity as described above, the increase of melanin and the increase of wrinkles accompanying aging can be prevented by coexisting this effect with the whitening action. Therefore, it is suitable as an agent for preventing skin aging.

抽出の方法としては、浸漬または加熱還流などの方法が挙げられる。例えば、浸漬により抽出する場合、乾燥細砕したコウホネ及び/又はネムロコウホネの非根茎部に約1〜30倍量程度の溶媒を加え、常温下又は加熱下に浸漬すればよい。また、加熱還流する場合、乾燥細砕したコウホネ及び/又はネムロコウホネの非根茎部に約1〜30倍量程度の溶媒を加え、40〜80℃程度で1〜10時間程度還流させて抽出することができる。   Examples of the extraction method include dipping or heating under reflux. For example, when extracting by immersion, about 1 to 30 times the amount of solvent may be added to the non-rhizome portion of dried and pulverized corn and / or nemur potato, and immersed at room temperature or under heating. In addition, when heating to reflux, add about 1 to 30 times the amount of solvent to the non-rhizome of dried and pulverized corn and / or Nemuro kone, and extract by refluxing at about 40 to 80 ° C. for about 1 to 10 hours. Can do.

上記溶媒で抽出して得られた抽出物は、適当な方法で濃縮し、また乾燥等して用いることができる。あるいはまた、シリカゲルカラムクロマトグラフィーなどの吸着系クロマトグラフィーを用いて分画した分画抽出物としても用いることができる。濃縮方法については、蒸留なども好適な方法として使用することができる。   The extract obtained by extraction with the above solvent can be used by concentrating by an appropriate method, drying and the like. Alternatively, it can also be used as a fraction extract obtained by fractionation using adsorption system chromatography such as silica gel column chromatography. As for the concentration method, distillation or the like can also be used as a suitable method.

このようにして得られるコウホネ及び/又はネムロコウホネの非根茎部の抽出物は、非水溶媒に可溶性の油溶性物質であり、通常は上記のように非水溶媒を用いて抽出されるものであるが、本発明では必ずしも非水溶媒抽出物には限定されず、非水溶媒に可溶性の油溶性物質であれば水系溶媒を用いて抽出されたものであっても構わない。好ましくは、該油溶性物質は、上記した中間極性を有する有機溶媒、とりわけ酢酸エチルを始めとする脂肪酸エステルに可溶性の物質である。   The extract of non-rhizome of corn and / or nemur corn obtained in this way is an oil-soluble substance that is soluble in a non-aqueous solvent and is usually extracted using a non-aqueous solvent as described above. However, in the present invention, the extract is not necessarily limited to a non-aqueous solvent extract, and an oil-soluble substance soluble in a non-aqueous solvent may be extracted using an aqueous solvent. Preferably, the oil-soluble substance is a substance that is soluble in an organic solvent having the above-mentioned intermediate polarity, particularly fatty acid esters including ethyl acetate.

本発明に係る美白剤は、上記のようにして得られるコウホネ及び/又はネムロコウホネの非根茎部の抽出物を有効成分とするものであり、後記実施例に示すように優れた美白作用及び/又はヒアルロニダーゼ活性阻害作用を有する。なお、美白剤の利用形態は、特に限定されず、ペースト形状でも、液体状でも、固形状でも、また、常法に従って粉末化した粉末状でもよく、更に皮膚外用剤等に使用される各種溶媒(例えば多価アルコール)に溶解させた溶液状でも構わない。   The whitening agent according to the present invention comprises an extract of non-rhizome of corn and / or nemuro corn obtained as described above as an active ingredient, and has an excellent whitening action and / or as shown in Examples below. Has an inhibitory action on hyaluronidase activity. The use form of the whitening agent is not particularly limited, and may be a paste form, a liquid form, a solid form, or a powder form powdered according to a conventional method, and various solvents used for a skin external preparation and the like. It may be in the form of a solution dissolved in (for example, polyhydric alcohol).

また、この美白剤は、以下に述べる皮膚外用剤に含有させる場合には限定されず、例えば、ガム、キャンディ、錠菓、飲料などの食品に配合してもよく、更には、経口用医薬品などに用いることもできる。   Further, this whitening agent is not limited to the case where it is contained in a skin external preparation described below. For example, it may be blended in foods such as gums, candy, tablet confectionery, beverages, and further, oral pharmaceuticals, etc. It can also be used.

本発明に係る皮膚外用剤において、上記したコウホネ及び/又はネムロコウホネの非根茎部の抽出物の配合量は、特に限定されないが、通常は0.0001〜20重量%であり、より好ましくは0.01〜5重量%である。   In the external preparation for skin according to the present invention, the amount of the extract of non-rhizome part of the above-mentioned corn and / or nemuro corn is not particularly limited, but is usually 0.0001 to 20% by weight, more preferably 0.8. 01 to 5% by weight.

また、該皮膚外用剤には、上記必須成分の他に、必要により皮膚外用剤の種類に応じて通常使用される油脂類、ロウ類、炭化水素、脂肪酸類、アルコール類、多価アルコール類、エステル類、アミン・アミド・金属石鹸類、ガム質・水溶性高分子化合物、界面活性剤、酸化防止剤、ビタミン類、香料、色材類、防腐殺菌剤、アミノ酸類、紫外線吸収剤、金属イオン封鎖剤、消炎剤、抗ヒスタミン剤、生薬類、他の公知の美白剤や保湿剤、その他種々の皮膚用薬品類などを配合することができる。   In addition to the above essential components, the external preparation for skin includes oils, waxes, hydrocarbons, fatty acids, alcohols, polyhydric alcohols that are usually used according to the type of external preparation for skin, if necessary. Esters, amines / amides / metal soaps, gums / water-soluble polymer compounds, surfactants, antioxidants, vitamins, fragrances, coloring materials, antiseptics, amino acids, UV absorbers, metal ions Blocking agents, anti-inflammatory agents, antihistamines, herbal medicines, other known whitening agents and moisturizing agents, and various other skin chemicals can be blended.

本発明に係る皮膚外用剤の態様としては、例えば、クリーム、乳液、ローション、パック、化粧水、美容液、洗顔料をはじめとする基礎化粧品類や、おしろい、ファンデーションほかのメイクアップ化粧品類、育毛剤、養毛剤などの化粧料が挙げられ、また、軟膏剤、パップ剤、プラスター剤などの医薬品、更には医薬部外品であってもよい。剤型についても、溶液、乳液、クリーム、ゲル、ゾル、軟膏、スティック、パウダー、スプレーほか通常の皮膚外用剤において採られている何れかのタイプによるも差支えない。   Examples of the external preparation for skin according to the present invention include, for example, basic cosmetics such as creams, emulsions, lotions, packs, lotions, beauty essences, facial cleansers, makeup cosmetics such as funny and foundation, hair growth And cosmetics such as agents and hair nourishing agents, and may be pharmaceuticals such as ointments, poultices, plasters, and quasi-drugs. The dosage form can be any of the types employed in solutions, emulsions, creams, gels, sols, ointments, sticks, powders, sprays, and other conventional skin external preparations.

以下、本発明について実施例により詳しく説明するが、本発明はこれにより限定されるものではない。   EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited by this.

(実施例1及び2)
コウホネ全草から根茎部を除き、非根茎部を風乾し裁断した。この8kgに酢酸エチル60Lを加え冷浸し、7日間時々撹拌しながら抽出した。この抽出を3回繰り返し、濾別した抽出液を合わせて約1/300に濃縮し、濃縮エキスを蒸発乾固して、酢酸エチル抽出物を約350g得た(実施例1の試料)。
(Examples 1 and 2)
The rhizome part was removed from the whole plant of corn, and the non-rhizome part was air-dried and cut. To 8 kg of this, 60 L of ethyl acetate was added and the mixture was cooled and extracted for 7 days with occasional stirring. This extraction was repeated three times, and the filtered extracts were combined and concentrated to about 1/300, and the concentrated extract was evaporated to dryness to obtain about 350 g of an ethyl acetate extract (sample of Example 1).

上記酢酸エチル抽出物をシリカゲルカラムクロマトグラフィーにより分画し、分画した液を濃縮して、蒸発乾固物約9.3gを得た(実施例2の試料)。   The ethyl acetate extract was fractionated by silica gel column chromatography, and the fractionated liquid was concentrated to obtain about 9.3 g of evaporated to dryness (sample of Example 2).

(実施例3)
上記実施例1の操作において、抽出溶媒である酢酸エチルをメタノールに変え、その他は同様にして抽出、濃縮して、蒸発乾固物約1250gを得た(実施例3の試料)。
Example 3
In the operation of Example 1 above, ethyl acetate as the extraction solvent was changed to methanol, and the others were extracted and concentrated in the same manner to obtain about 1250 g of an evaporated dry solid (sample of Example 3).

(試験例1:メラニン生成抑制試験)
メラニン生成抑制試験には、マウスB16メラノーマ培養細胞(マウスB16 melanoma4A5)を用いた。まず、2.5×10個のB16メラノーマ細胞を直径60mmのプラスチックシャーレに播種し、10重量%牛胎児血清を含むイーグルMEM培地で5%CO下、37℃で24時間培養した。次いで、実施例1及び2の試料をそれぞれ20、10、5μg/mLとなるように添加した10重量%牛胎児血清を含むイーグルMEM培地に交換し、これを72時間培養した。培養終了後、トリプシンで細胞を剥離させ、遠心分離により細胞を回収した。得られた細胞を5重量%TCA、エタノール:ジエチルエーテル=3:1、ジエチルエーテルの順に処理し、乾燥後、10重量%DMSOを含む1N水酸化ナトリウムを加え、加熱溶解した。冷後、420nmにおける吸光度を測定し、メラニン量を測定した。別に、試料無添加で同様に試験したものを対照とし、以下の式により試料のメラニン生成抑制率を求めた。結果は、上記に加えて、メラニン生成抑制と美白効果に定評のあるアルブチンの試験結果を対比し、表1に示した。なお、試料溶解にはDMSOを用いたが、これは本試験結果には影響を及ぼさないことを確認した。
(Test Example 1: Melanin production inhibition test)
Mouse B16 melanoma cultured cells (mouse B16 melanoma 4A5) were used for the melanin production inhibition test. First, 2.5 × 10 5 B16 melanoma cells were seeded in a plastic petri dish having a diameter of 60 mm, and cultured in Eagle's MEM medium containing 10% by weight fetal calf serum at 37 ° C. for 24 hours under 5% CO 2 . Next, the samples of Examples 1 and 2 were replaced with Eagle's MEM medium containing 10% by weight fetal calf serum added so as to be 20, 10, and 5 μg / mL, respectively, and cultured for 72 hours. After completion of the culture, the cells were detached with trypsin, and the cells were collected by centrifugation. The obtained cells were treated in the order of 5 wt% TCA, ethanol: diethyl ether = 3: 1, diethyl ether, dried, 1N sodium hydroxide containing 10 wt% DMSO was added and dissolved by heating. After cooling, the absorbance at 420 nm was measured, and the amount of melanin was measured. Separately, using the same test with no sample added as a control, the melanin production inhibition rate of the sample was determined by the following formula. In addition to the above, the results are shown in Table 1, comparing the test results of arbutin, which has a reputation for inhibiting melanin production and whitening effect. Although DMSO was used for sample dissolution, it was confirmed that this does not affect the test results.

抑制率(%)={(A−B)/A}×100
A:試料無添加時の吸光度
B:試料添加時の吸光度

Figure 2007302704
Inhibition rate (%) = {(A−B) / A} × 100
A: Absorbance when no sample is added B: Absorbance when the sample is added
Figure 2007302704

表1に示す通り、コウホネ非根茎部からの非水溶媒抽出物のメラニン生成抑制機能は、アルブチンのそれに匹敵して、極めて優れたものであった。   As shown in Table 1, the melanin production-inhibiting function of the non-aqueous solvent extract from the non-rhizome portion of corn was extremely superior to that of arbutin.

(試験例2:ヒアルロニダーゼ活性阻害試験)
ヒアルロニダーゼ活性阻害試験は、実施例1及び3の試料について、Morgan−Elson法の変法(Davidson, E. A., Aronson, N. N. :J. Biol. Chem. 242, 437(1967))に準じて行った。
(Test Example 2: Hyaluronidase activity inhibition test)
The hyaluronidase activity inhibition test was performed on the samples of Examples 1 and 3 according to a modification of the Morgan-Elson method (Davidson, EA, Aronson, NN: J. Biol. Chem. 242, 437 (1967)).

詳細には、ウシ睾丸由来ヒアルロニダーゼを0.1M酢酸緩衝液(pH4.0)に溶解して2.1mg/mLに調製した液0.05mLと実施例1及び3の試料をそれぞれ0.1mL混合し、37℃で20分間インキュベートした後、酵素活性化剤であるCompound 48/80を0.1M酢酸緩衝液(pH4.0)に溶解して0.5mg/mLに調製した液0.1mLを加えて37℃で20分間インキュベートした。次に、基質である雄鶏のとさか由来ヒアルロン酸カリウムを0.1M酢酸緩衝液(pH4.0)に溶解して0.8mg/mLに調製した液0.25mLを入れ、37℃で40分間インキュベートした後、0.4N水酸化ナトリウム水溶液を0.1mL加えて反応を停止させた。これにpH9.1に調製した0.8Mホウ酸溶液0.1mLを加えて3分間煮沸し、放冷後、p−DAB溶液(p−ジメチルアミノベンズアルデヒド10g、10N塩酸12.5mL、酢酸87.5mL)を酢酸で10倍希釈した溶液3mLを加えて、37℃で20分間インキュベートし発色させた。その後、585nmにおける吸光度を測定し、以下の式によりヒアルロニダーゼ活性阻害率を求めた。結果は表2に示した。なお、試料溶解にはDMSOを用いたが、これは本試験結果に何ら影響を及ぼさないことを確認した。   Specifically, 0.05 mL of a solution prepared by dissolving bovine testicular-derived hyaluronidase in 0.1 M acetate buffer (pH 4.0) to 2.1 mg / mL and 0.1 mL each of the samples of Examples 1 and 3 were mixed. After incubating at 37 ° C. for 20 minutes, 0.1 mL of a solution prepared by dissolving Compound 48/80, an enzyme activator, in 0.1 M acetate buffer (pH 4.0) to 0.5 mg / mL was added. In addition, it was incubated at 37 ° C. for 20 minutes. Next, 0.25 mL of a solution prepared by dissolving potassium bromide derived from the cock of the chicken, the substrate, in 0.1 M acetic acid buffer (pH 4.0) to adjust to 0.8 mg / mL was added, and incubated at 37 ° C. for 40 minutes. Then, 0.1 mL of 0.4N sodium hydroxide aqueous solution was added to stop the reaction. To this, 0.1 mL of 0.8 M boric acid solution adjusted to pH 9.1 was added and boiled for 3 minutes. After standing to cool, p-DAB solution (10 g of p-dimethylaminobenzaldehyde, 12.5 mL of 10N hydrochloric acid, 87. 5 mL) was diluted 10-fold with acetic acid, 3 mL was added, and the mixture was incubated at 37 ° C. for 20 minutes for color development. Thereafter, the absorbance at 585 nm was measured, and the hyaluronidase activity inhibition rate was determined by the following formula. The results are shown in Table 2. Although DMSO was used for sample dissolution, it was confirmed that this did not affect the test results.

阻害率(%)={(A−B)−(C−D)}/(A−B)×100
A:対照溶液(反応後)の585nmにおける吸光度
B:対照溶液(反応前)の585nmにおける吸光度
C:試料溶液(反応後)の585nmにおける吸光度
D:試料溶液(反応前)の585nmにおける吸光度

Figure 2007302704
Inhibition rate (%) = {(A−B) − (C−D)} / (A−B) × 100
A: Absorbance at 585 nm of the control solution (after reaction) B: Absorbance at 585 nm of the control solution (before reaction) C: Absorbance at 585 nm of the sample solution (after reaction) D: Absorbance at 585 nm of the sample solution (before reaction)
Figure 2007302704

表2に示すとおり、コウホネ非根茎部からの非水溶媒抽出物が強いヒアルロニダーゼ活性阻害能を有することが確認された。   As shown in Table 2, it was confirmed that the non-aqueous solvent extract from the non-rhizome part of corn has strong hyaluronidase activity inhibition ability.

以下、本発明に係る皮膚外用剤の処方例を示す(配合量はいずれも重量%)。   Hereinafter, formulation examples of the external preparation for skin according to the present invention will be shown (all blending amounts are wt%).

(処方例1:クリーム)
ステアリン酸 2.0
ステアリルアルコール 2.0
還元ラノリン 2.0
スクワラン 5.0
オクチルドデカノール 6.0
ポリオキシエチレンセチルエーテル(25EO) 3.0
親油型モノステアリン酸グリセリン 2.0
香料、防腐剤、酸化防止剤 適量
実施例1の試料 0.2
プロピレングリコール 5.0
精製水 残量
(Formulation Example 1: Cream)
Stearic acid 2.0
Stearyl alcohol 2.0
Reduced lanolin 2.0
Squalane 5.0
Octyldodecanol 6.0
Polyoxyethylene cetyl ether (25EO) 3.0
Lipophilic glyceryl monostearate 2.0
Perfume, preservative, antioxidant Suitable amount Sample of Example 1 0.2
Propylene glycol 5.0
Purified water remaining

(処方例2:化粧水)
クエン酸 0.1
パラフェノールスルホン酸亜鉛 0.2
ソルビット 2.0
グリセリン 3.0
ポリオキシエチレンオレイルエーテル(25EO) 1.0
エタノール 15.0
香料、防腐剤 適量
実施例1の試料 0.2
精製水 残量
(Formulation example 2: lotion)
Citric acid 0.1
Zinc paraphenol sulfonate 0.2
Sorbit 2.0
Glycerin 3.0
Polyoxyethylene oleyl ether (25EO) 1.0
Ethanol 15.0
Perfume and preservatives Appropriate amount Sample of Example 1 0.2
Purified water remaining

(処方例3:乳液)
実施例1の試料 0.2
ステアリン酸 2.0
エタノール 1.5
ワセリン 3.0
ラノリンアルコール 2.0
流動パラフィン 10.0
ポリオキシエチレンオレイン酸エステル(10EO)2.0
香料、防腐剤、酸化防止剤 適量
グリセリン 3.0
プロピレングリコール 5.0
トリエタノールアミン 1.0
精製水 残量
(Formulation Example 3: Latex)
Sample of Example 1 0.2
Stearic acid 2.0
Ethanol 1.5
Vaseline 3.0
Lanolin alcohol 2.0
Liquid paraffin 10.0
Polyoxyethylene oleate (10EO) 2.0
Perfume, preservative, antioxidant Suitable amount Glycerin 3.0
Propylene glycol 5.0
Triethanolamine 1.0
Purified water remaining

(試験例3:使用効果試験)
上記した皮膚外用剤を実際に使用した場合の効果について試験を行った。使用テストは健康な成人女性25〜50歳の30名をパネラーとし、毎日、朝と夜の2回、洗顔後に処方例3の乳液の適量を顔面に3ヶ月にわたって塗布することにより行った。なお、コントロールとして、処方例3の乳液から実施例1の試料を除いたものを同様な方法にて処方したものを用いた。評価は下記の基準にて行い、結果は表3に示すとおりであり、表中の数値は人数を表す。なお、使用期間中に皮膚の異常を訴えた者はいなかった。
(Test Example 3: Use effect test)
A test was conducted on the effect of actually using the above-mentioned external preparation for skin. The use test was conducted by 30 healthy adult females 25 to 50 years old as a panelist, and by applying an appropriate amount of the emulsion of Formulation Example 3 to the face for 3 months after washing the face twice daily in the morning and at night. As a control, a formulation prepared by removing the sample of Example 1 from the emulsion of Formulation Example 3 by the same method was used. The evaluation is performed according to the following criteria, and the results are as shown in Table 3. The numerical values in the table represent the number of people. No one complained of skin abnormalities during the period of use.

・肌の皺・弛み改善効果
有効:皺・弛みが目立たなくなった
やや有効:皺・弛みがやや目立たなくなった
無効:使用前と変化なし。
・ Effective effect of improving skin wrinkling / sagging: Slightly effective wrinkle / sagging is inconspicuous: Invalid: Wrinkle / sagging is slightly inconspicuous: No change from before use.

・美白効果
有効:顔のくすみ・シミが目立たなくなった
やや有効:顔のくすみ・シミがやや目立たなくなった
無効:使用前と変化なし。

Figure 2007302704
・ Whitening effect is effective: Dullness of face / stains are slightly inconspicuous: Dullness of face / stains are slightly inconspicuous: Invalid before use.
Figure 2007302704

表3に示すように、本発明に係る皮膚外用剤であると、有意に肌の皺・弛みが軽減され、また、美白効果を持つことが確認された。   As shown in Table 3, it was confirmed that the skin external preparation according to the present invention significantly reduced skin wrinkles and looseness and had a whitening effect.

(試験例4:使用効果試験)
皮膚外用剤として上記した処方例1のクリームを用いて抗アレルギー・抗炎症効果について検討を行った。使用テストは湿疹・カユミ・肌荒れで悩む30〜50歳の30名をパネラーとし、毎日、朝と夜の2回、処方例1のクリームの適量を3ヶ月に渡って塗布することにより行った。なお、コントロールとして、処方例1のクリームから実施例1の試料を除いたものを同様な方法にて処方したものを用いた。評価は下記の基準にて行い、結果は表4のとおりであり、表中の数値は人数を表す。なお、使用期間中に皮膚の異常を訴えた者はいなかった。
(Test Example 4: Use effect test)
Anti-allergic and anti-inflammatory effects were examined using the cream of Formulation Example 1 described above as a skin external preparation. The use test was conducted by applying 30 persons aged 30 to 50 years suffering from eczema, kayumi and rough skin by applying an appropriate amount of the cream of Formulation Example 1 over the course of 3 months, twice daily in the morning and at night. As a control, a cream prepared by removing the sample of Example 1 from the cream of Formulation Example 1 by the same method was used. Evaluation is performed according to the following criteria, and the results are as shown in Table 4. The numerical values in the table represent the number of people. No one complained of skin abnormalities during the period of use.

・湿疹、肌荒れ改善効果
有効:湿疹・カユミ・肌荒れが改善された
やや有効:湿疹・カユミ・肌荒れがやや改善された
無効:使用前と変化なし。

Figure 2007302704
・ Eczema, rough skin improvement effect Effective: Eczema / Kayumi / Skin rough improved slightly effective: Eczema / Kayumi / Skin rough improved slightly: Invalid before use and no change.
Figure 2007302704

表4に示すように、本発明に係る皮膚外用剤であると、有意に湿疹・カユミ・肌荒れを改善することが確認された。   As shown in Table 4, it was confirmed that the external preparation for skin according to the present invention significantly improved eczema, kayumi and rough skin.

本発明に係る美白剤は、皮膚外用剤を始めとして、食品や経口用医薬品など、美白効果が求められる様々な用途に利用可能である。また、本発明に係る皮膚外用剤は、化粧品、医薬品、医薬部外品などとして利用可能である。   The whitening agent according to the present invention can be used for various uses that require a whitening effect, such as a topical skin preparation, foods and oral drugs. Moreover, the skin external preparation which concerns on this invention can be utilized as cosmetics, a pharmaceutical, a quasi-drug, etc.

Claims (4)

コウホネ及び/又はネムロコウホネの非根茎部の非水溶媒抽出物を含有する皮膚外用剤。   A skin external preparation containing a non-aqueous solvent extract of a non-rhizome part of corn and / or nemur corn. コウホネ及び/又はネムロコウホネの非根茎部の非水溶媒抽出物を有効成分としてなる美白剤。   A whitening agent comprising, as an active ingredient, a non-aqueous solvent extract of a non-rhizome portion of corn and / or Nemuro corn. コウホネ及び/又はネムロコウホネの非根茎部から抽出された油溶性物質を有効成分としてなる美白剤。   A whitening agent comprising, as an active ingredient, an oil-soluble substance extracted from a non-rhizome part of corn and / or Nemuro corn. 請求項2又は3記載の美白剤を含有することを特徴とする皮膚外用剤。   A skin external preparation comprising the whitening agent according to claim 2 or 3.
JP2007222324A 2007-08-29 2007-08-29 External preparation for skin and whitening agent Expired - Fee Related JP4457133B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010111590A (en) * 2008-11-04 2010-05-20 Oriza Yuka Kk Melanogenesis inhibitor
JP2022105684A (en) * 2018-06-01 2022-07-14 株式会社ディーエイチシー Cosmetic product for expression of vitamin d-like activity

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JPH10279491A (en) * 1997-04-01 1998-10-20 Kao Corp Interleukin 4 production inhibitor
JP2002241299A (en) * 2001-02-13 2002-08-28 Ichimaru Pharcos Co Ltd Maillard reaction recovering agent
JP2003246722A (en) * 2002-02-25 2003-09-02 Kanebo Ltd Whitening cosmetic
JP2003292427A (en) * 2002-04-01 2003-10-15 Kao Corp Deodorant agent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10279491A (en) * 1997-04-01 1998-10-20 Kao Corp Interleukin 4 production inhibitor
JP2002241299A (en) * 2001-02-13 2002-08-28 Ichimaru Pharcos Co Ltd Maillard reaction recovering agent
JP2003246722A (en) * 2002-02-25 2003-09-02 Kanebo Ltd Whitening cosmetic
JP2003292427A (en) * 2002-04-01 2003-10-15 Kao Corp Deodorant agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010111590A (en) * 2008-11-04 2010-05-20 Oriza Yuka Kk Melanogenesis inhibitor
JP2022105684A (en) * 2018-06-01 2022-07-14 株式会社ディーエイチシー Cosmetic product for expression of vitamin d-like activity

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