JP4295473B2 - Topical skin preparation - Google Patents

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JP4295473B2
JP4295473B2 JP2002149521A JP2002149521A JP4295473B2 JP 4295473 B2 JP4295473 B2 JP 4295473B2 JP 2002149521 A JP2002149521 A JP 2002149521A JP 2002149521 A JP2002149521 A JP 2002149521A JP 4295473 B2 JP4295473 B2 JP 4295473B2
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extract
pemphis
preparation
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skin
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JP2003342149A (en
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彰 葉谷
速 前田
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Noevir Co Ltd
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Noevir Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、シワやシミの発生、皮膚の弾性の低下といった皮膚の老化症状の防止或いは改善において、優れた効果を有する皮膚外用剤に関し、さらに詳しくは、真皮線維芽細胞賦活作用と抗酸化作用を有するミズガンピ属(Pemphis)植物抽出物を配合した皮膚外用剤に関する。
【0002】
【従来の技術】
加齢などによる真皮線維芽細胞の機能低下は、コラーゲンやエラスチン等の真皮マトリックスの減少や変性を引き起こし、シワや皮膚の弾性の低下といった老化症状の重要な要因となっている。また、紫外線等の外来ストレスによる酸化傷害も、シワ,シミ,皮膚の弾性の低下といった老化症状の原因となっている。これまでの皮膚外用剤の分野では、係る細胞の機能低下や酸化傷害による老化症状を防止あるいは改善するために、様々な細胞賦活剤や抗酸化剤の検索及び配合検討がなされてきた。細胞賦活剤としては、例えば、ポンカンのエッセンス(特開2001−131045)、ツリガネニンジン属,クサギ及びそれらの抽出物(特開2000−178198)、有機溶媒によるクロレラ抽出物(特開平11−335293)等が知られており、抗酸化剤としては、例えば、キク科へテロテカ属植物抽出物(特開平11−180886)やカユアンギンの抽出物(特開平10−182413)等が知られている。
【0003】
しかし、すでに報告されている生理活性物質は、老化現象の一部の過程にのみ作用している場合が多く、本質的な改善効果としては不十分であった。また、皮膚外用剤の基剤中に配合した場合、有効な効果を得るにはかなりの高濃度を配合しなければならず、製剤に好ましくない色や臭いを付与してしまう場合があるなど、作用効果や安定性の面ですべてを満足できるものが少ないのが現状であった。
【0004】
【発明が解決しようとする課題】
そこで、本発明においては、真皮線維芽細胞賦活作用と抗酸化作用とを有し、皮膚の老化症状の予防や改善効果に優れた皮膚外用剤を提供することを目的とした。
【0005】
【課題を解決するための手段】
本発明者らは、皮膚の老化症状の予防や改善に優れた有効成分を見出すために、種々の物質について真皮線維芽細胞賦活作用と抗酸化作用に関する検討を行った。その結果、ミズガンピ属(Pemphis)植物抽出物に優れた真皮線維芽細胞賦活作用と抗酸化作用とを見出し、本発明を完成するに至った。
【0006】
【発明の実施の形態】
ミズガンピ属(Pemphis)植物は、ミソハギ科の植物でインド,マレーシア,太平洋諸島にかけて広く分布している。ミズガンピ属(Pemphis)植物としては、ミズガンピ(Pemphis acidula Forst.),マダガスカルミズガンピ(Pemphis madagascariensis (Bak.) H.Perr.)等が知られている。
【0007】
これらのミズガンピ属(Pemphis)植物を使用する際は、抽出物を用いるのが一般的である。抽出には、ミズガンピ属(Pemphis)植物の幹,枝,果実,葉,花,種子,樹皮,樹液,根,芽などのいずれの部位を用いても構わないが、簡便に利用するには、葉や種子を用いるとよい。抽出の際は、生のまま用いてもよいが、抽出効率を考えると、細切,乾燥,粉砕等の処理を行った後に抽出を行うことが好ましい。抽出は、抽出溶媒に浸漬するか、超臨界流体や亜臨界流体を用いた抽出方法でも行うことができる。抽出効率を上げるため、撹拌や抽出溶媒中でホモジナイズしてもよい。抽出温度としては、5℃程度から抽出溶媒の沸点以下の温度とするのが適切である。抽出時間は抽出溶媒の種類や抽出温度によっても異なるが、1時間〜14日間程度とするのが適切である。
【0008】
抽出溶媒としては、水の他、メタノール,エタノール,プロパノール,イソプロパノール等の低級アルコール、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,グリセリン等の多価アルコール、エチルエーテル,プロピルエーテル等のエーテル類、酢酸エチル,酢酸ブチル等のエステル類、アセトン,エチルメチルケトン等のケトン類などの溶媒を用いることができ、これらより1種又は2種以上を選択して用いる。また、生理食塩水,リン酸緩衝液,リン酸緩衝生理食塩水等を用いてもよい。さらに、水や二酸化炭素,エチレン,プロピレン,エタノール,メタノール,アンモニアなどの1種又は2種以上の超臨界流体や亜臨界流体を用いてもよい。
【0009】
ミズガンピ属(Pemphis)植物の上記溶媒による抽出物は、そのままでも使用することができるが、濃縮,乾固した物を水や極性溶媒に再度溶解したり、或いはこれらの生理作用を損なわない範囲で脱色,脱臭,脱塩等の精製処理を行ったり、カラムクロマトグラフィー等による分画処理を行った後に用いてもよい。ミズガンピ属(Pemphis)植物の前記抽出物やその処理物及び分画物は、各処理及び分画後に凍結乾燥し、用時に溶媒に溶解して用いることもできる。また、リポソーム等のベシクルやマイクロカプセル等に内包させて用いることもできる。
【0010】
本発明においては、ミズガンピ属(Pemphis)植物抽出物を皮膚外用剤に配合することにより、シワ、タルミ、肌のハリの低下、及びクスミ等の老化症状の予防や改善に優れた効果を発揮する。
【0011】
本発明における真皮線維芽細胞賦活作用と抗酸化作用を有する皮膚外用剤は、ミズガンピ属(Pemphis)植物抽出物を有効成分とする。
【0012】
本発明におけるミズガンピ属(Pemphis)植物抽出物の配合量は、皮膚外用剤の種類や目的等によって調整することができるが、皮膚外用剤の全量に対して、0.0001〜10.0重量%が好ましく、より好ましくは、0.001〜5.0重量%である。
【0013】
本発明に係る皮膚外用剤は、ローション,乳液,ゲル,クリーム,軟膏剤,粉末,顆粒等、種々の剤型で提供することができる。
【0014】
なお、本発明に係る皮膚外用剤には、ミズガンピ属(Pemphis)植物抽出物の他に、通常医薬品,医薬部外品,皮膚化粧料,毛髪用化粧料及び洗浄料に配合される、油性成分,保湿剤,粉体,色素,乳化剤,可溶化剤,洗浄剤,紫外線吸収剤,増粘剤,薬剤,香料,樹脂,防菌防黴剤,アルコール類等を適宜配合することができる。また、本発明の効果を損なわない範囲において、他の細胞賦活剤,抗酸化剤,植物抽出物との併用も可能である。
【0015】
【実施例】
さらに実施例により、本発明の特徴について詳細に説明する。まず、本発明のミズガンピ属(Pemphis)植物抽出物の調製方法について示す。
【0016】
[調製方法1]
ミズガンピ属(Pemphis)植物の乾燥粉砕物1kgに50重量%エタノール水溶液を10リットル加え、室温で7日間浸漬した。抽出液をろ過して回収し、溶媒を除去した後、ミズガンピ属(Pemphis)植物抽出物を得た。
【0017】
[調製方法2]
ミズガンピ属(Pemphis)植物の乾燥粉砕物1kgに水を9リットル加え、90℃にて6時間還流して抽出した。抽出液をろ過して回収し、溶媒を除去した後、ミズガンピ属(Pemphis)植物抽出物を得た。
【0018】
[調製方法3]
ミズガンピ属(Pemphis)植物の乾燥粉砕物1kgにメタノールを9リットル加え、室温で7日間浸漬した。抽出液をろ過して回収し、溶媒を除去した後、ミズガンピ属(Pemphis)植物抽出物を得た。
【0019】
[調製方法4]
超臨界抽出装置にミズガンピ属(Pemphis)植物を投入し、40℃において15MPaの大気圧下で二酸化炭素の超臨界流体を用いて抽出した。抽出物を回収し、ミズガンピ属(Pemphis)植物抽出物を得た。
【0020】
次に、ミズガンピ属(Pemphis)植物抽出物の真皮線維芽細胞の賦活作用を示す。
【0021】
評価は、以下の手順で行った。正常ヒト真皮線維芽細胞を1ウェル当たり2.0×10個となるように96穴マイクロプレートに播種した。播種培地には、ダルベッコ改変イーグル培地(DMEM)に1%のウシ胎児血清を添加したものを用いた。24時間培養後、ミズガンピ属(Pemphis)植物抽出物を添加した試験培地に交換し、さらに48時間培養した。次いで3−(4,5−ジメチル−2−チアゾリル)−2,5−ジフェニルテトラゾリウムブロミド(MTT)を400μg/mL含有する培地に交換して2時間培養し、テトラゾリウム環の開環により生じるフォルマザンを2−プロパノールにて抽出し、マイクロプレートリーダーにて550nmの吸光度を測定した。同時に濁度として650nmにおける吸光度を測定し、両測定値の差により細胞賦活作用を評価した。ミズガンピの葉と枝の混合部位から調製方法1によって得られた抽出物の評価結果を、抽出物が無添加の場合の細胞賦活作用を100とした相対値にて表1に示す。
【0022】
【表1】

Figure 0004295473
【0023】
表1より、ミズガンピ抽出物では、ミズガンピ抽出物を0.25〜1.0mg/mL添加した場合に、無添加の場合と比較して、危険率1%未満で有意な線維芽細胞の賦活作用が認められた。このことから、ミズガンピ属(Pemphis)植物抽出物は、優れた線維芽細胞賦活作用を有することが明らかとなった。
【0024】
次に、ミズガンピ属(Pemphis)植物抽出物の抗酸化作用について示す。
【0025】
評価は、以下の手順で行った。50重量%エタノール水溶液にて0.1mg/mLの濃度に希釈したミズガンピ抽出物溶液を試料として96穴マイクロプレートに100μL添加した。次に、0.2mMの濃度になるようにエタノールにて調製した1,1−ジフェニル−2−ピクリルヒドラジル(DPPH)溶液を96穴マイクロプレートに100μL添加した。攪拌しながら暗所に放置し、10分後と17時間後に516nmの吸光度を測定した。試料を添加しなかった場合の吸光度を(A)、試料を添加した場合の吸光度を(B)としたとき、式(1)の値をラジカル消去率とした。
式(1) {1−(B)/(A)}×100(%)
ミズガンピの葉と枝の混合部位より調製方法1によって得られた抽出物の実験結果を表2に示す。
【0026】
【表2】
Figure 0004295473
【0027】
表2より明らかなように、ミズガンピ属(Pemphis)植物抽出物は、優れた抗酸化作用を有することが分かった。
【0028】
続いて、本発明に係るミズガンピ属(Pemphis)植物抽出物を配合した実施例の処方を示すが、実施例7〜19における処方に配合したミズガンピ抽出物及びマダガスカルミズガンピ抽出物とは、葉と枝の混合部位からの抽出物である。
【0029】
[実施例1〜6]乳液
(1)スクワラン 10.0(重量%)
(2)メチルフェニルポリシロキサン 4.0
(3)水素添加パーム核油 0.5
(4)水素添加大豆リン脂質 0.1
(5)モノステアリン酸ポリオキシエチレン
ソルビタン(20E.O.) 1.3
(6)モノステアリン酸ソルビタン 1.0
(7)グリセリン 10.0
(8)パラオキシ安息香酸メチル 0.1
(9)カルボキシビニルポリマー 0.15
(10)精製水 50.85
(11)アルギニン(1重量%水溶液) 20.0
(12)表3記載のミズガンピ属植物抽出物 2.0
製法:(1)〜(6)の油相成分を80℃にて加熱溶解する。一方(7)〜(10)の水相成分を80℃にて加熱溶解する。これに前記油相成分を攪拌しながら加え、ホモジナイザーにより均一に乳化する。乳化終了後、冷却を開始し、(11)と(12)を順次加え、均一に混合する。
【0030】
【表3】
Figure 0004295473
【0031】
[実施例7]化粧水
(1)エタノール 15.0(重量%)
(2)ポリオキシエチレン(40E.O.)硬化ヒマシ油 0.3
(3)香料 0.1
(4)精製水 81.36
(5)クエン酸 0.02
(6)クエン酸ナトリウム 0.1
(7)グリセリン 3.0
(8)ヒドロキシエチルセルロース 0.1
(9)ミズガンピ抽出物[調製方法3] 0.02
製法:(1)に(2)及び(3)を溶解する。溶解後、(4)〜(8)を順次添加した後、十分に攪拌し、(9)を加え、均一に混合する。
【0032】
[実施例8]クリーム
(1)スクワラン 10.0(重量%)
(2)ステアリン酸 2.0
(3)水素添加パーム核油 0.5
(4)水素添加大豆リン脂質 0.1
(5)セタノール 3.6
(6)親油型モノステアリン酸グリセリン 2.0
(7)グリセリン 10.0
(8)パラオキシ安息香酸メチル 0.1
(9)アルギニン(20重量%水溶液) 15.0
(10)精製水 40.7
(11)カルボキシビニルポリマー(1重量%水溶液) 15.0
(12)ミズガンピ抽出物[調製方法1] 1.0
製法:(1)〜(6)の油相成分を80℃にて加熱溶解する。一方(7)〜(10)の水相成分を80℃にて加熱溶解する。これに前記油相成分を攪拌しながら加え、ホモジナイザーにより均一に乳化する。乳化終了後、(11)を加え、冷却を開始し、40℃にて(12)を加え、均一に混合する。
【0033】
Figure 0004295473
製法:(1)〜(6)の水相成分を混合し、75℃にて加熱溶解する。一方、(7)〜(14)の油相成分を混合し、75℃にて加熱溶解する。次いで、上記水相成分に油相成分を添加して予備乳化を行った後、ホモミキサーにて均一に乳化する。乳化終了後に冷却を開始し、50℃にて(15)を加える。さらに40℃まで冷却し、(16)を加え、均一に混合する。
【0034】
[実施例10]水性ジェル
(1)カルボキシビニルポリマー 0.5(重量%)
(2)精製水 86.1
(3)水酸化ナトリウム(10重量%水溶液) 0.5
(4)エタノール 10.0
(5)パラオキシ安息香酸メチル 0.1
(6)香料 0.1
(7)ミズガンピ抽出物[調製方法4] 0.2
(8)ポリオキシエチレン(60E.O.)硬化ヒマシ油 0.1
(9)グリセリン 2.0
(10)ミズガンピ抽出物[調製方法3] 0.2
(11)マダガスカルミズガンピ抽出物[調製方法1] 0.2
製法:(1)を(2)に加え、均一に攪拌した後、(3)を加える。均一に攪拌した後,(4)に予め溶解した(5)を加える。均一に攪拌した後、予め混合しておいた(6)〜(8)を加える。均一に攪拌した後、(9)〜(11)を順次加え、均一に混合する。
【0035】
[実施例11]クレンジング料
(1)スクワラン 81.95
(2)イソステアリン酸ポリオキシエチレングリセリル 15.0
(3)精製水 3.0
(4)ミズガンピ抽出物[調製方法4] 0.02
(5)マダガスカルミズガンピ抽出物[調製方法4] 0.03
製法:(1)と(2)を均一に溶解する。これに、(3)〜(5)を順次加え、均一に混合する。
【0036】
[実施例12]洗顔フォーム
(1)ステアリン酸 16.0(重量%)
(2)ミリスチン酸 16.0
(3)親油型モノステアリン酸グリセリン 2.0
(4)グリセリン 20.0
(5)水酸化ナトリウム 7.5
(6)ヤシ油脂肪酸アミドプロピルベタイン 1.0
(7)精製水 36.5
(8)ミズガンピ抽出物[調製方法3] 0.5
(9)マダガスカルミズガンピ抽出物[調製方法2] 0.5
製法:(1)〜(4)の油相成分を80℃にて加熱溶解する。一方(5)〜(7)の水相成分を80℃にて加熱溶解し、油相成分と均一に混合撹拌する。冷却を開始し、40℃にて(8)と(9)を加え、均一に混合する。
【0037】
[実施例13]メイクアップベースクリーム
(1)スクワラン 10.0(重量%)
(2)セタノール 2.0
(3)グリセリントリ−2−エチルヘキサン酸エステル 2.5
(4)親油型モノステアリン酸グリセリル 1.0
(5)プロピレングリコール 11.0
(6)ショ糖脂肪酸エステル 1.3
(7)精製水 70.4
(8)酸化チタン 1.0
(9)ベンガラ 0.1
(10)黄酸化鉄 0.4
(11)香料 0.1
(12)ミズガンピ抽出物[調製方法2] 0.1
(13)マダガスカルミズガンピ抽出物[調製方法1] 0.1
製法:(1)〜(4)の油相成分を混合し、75℃にて加熱溶解後する。一方、(5)〜(7)の水相成分を混合し、75℃にて加熱溶解し、これに(8)〜(10)の顔料を加え、ホモミキサーにて均一に分散させる。この水相成分に前記油相成分を加え、ホモミキサーにて乳化する。乳化終了後に冷却を開始し、40℃にて(11)〜(13)の成分を加え、均一に混合する。
【0038】
Figure 0004295473
製法:(1)〜(6)の油相成分を混合し、75℃にて加熱溶解する。一方、(7)〜(10)の水相成分を混合し、75℃にて加熱溶解し、これに(11)〜(15)の顔料を加え、ホモミキサーにて均一に分散する。油相成分を加え、乳化を行う。乳化終了後に冷却を開始し、40℃にて(16)〜(18)の成分を順次加え、均一に混合する。
【0039】
[実施例15]油中水型エモリエントクリーム
(1)流動パラフィン 30.0(重量%)
(2)マイクロクリスタリンワックス 2.0
(3)ワセリン 5.0
(4)ジグリセリンオレイン酸エステル 5.0
(5)塩化ナトリウム 1.3
(6)塩化カリウム 0.1
(7)プロピレングリコール 3.0
(8)1,3−ブチレングリコール 5.0
(9)パラオキシ安息香酸メチル 0.1
(10)ミズガンピ抽出物[調製方法1] 0.5
(11)精製水 45.9
(12)香料 0.1
(13)マダガスカルミズガンピ抽出物[調製方法4] 2.0
製法:(5)と(6)を(11)の一部に溶解して50℃とし、50℃に加熱した(4)に撹拌しながら徐々に加える。これを混合した後、70℃にて加熱溶解した(1)〜(3)に均一に分散する。これに(7)〜(10)を(11)の残部に70℃にて加熱溶解したものを撹拌しながら加え、ホモミキサーにて乳化する。乳化終了後に冷却を開始し、40℃にて(12)と(13)を加え、均一に混合する。
【0040】
[実施例16]ヘアートニック
(1)エタノール 50.0(重量%)
(2)精製水 49.898
(3)ミズガンピ抽出物[調製方法3] 0.001
(4)マダガスカルミズガンピ抽出物[調製方法4] 0.001
(5)香料 0.1
製法:(1)〜(5)の成分を混合,均一化する。
【0041】
[実施例17]パック
(1)精製水 68.9(重量%)
(2)ポリビニルアルコール 12.0
(3)エタノール 10.0
(4)グリセリン 5.0
(5)ポリエチレングリコール(平均分子量1000) 2.0
(6)ミズガンピ抽出物[調製方法1] 1.0
(7)マダガスカルミズガンピ抽出物[調製方法2] 1.0
(8)香料 0.1
製法:(2)と(3)を混合し、80℃に加温した後、80℃に加温した(1)に溶解する。均一に溶解した後、(4)〜(5)を加え、攪拌しながら冷却を開始する。40℃まで冷却し、(6)〜(8)を加え、均一に混合する。
【0042】
Figure 0004295473
製法:(1)〜(6)の油相成分を混合し、75℃にて加熱溶解後する。一方、(7)〜(10)の水相成分を75℃にて加熱溶解し、前記油相成分を加え、ホモミキサーにて乳化する。乳化終了後に冷却を開始し、40℃にて(11)〜(13)の成分を加え、均一に混合する。
【0043】
[実施例19]入浴剤
(1)香料 0.3(重量%)
(2)ミズガンピ抽出物[調製方法1] 0.5
(3)マダガスカルミズガンピ抽出物[調製方法3] 0.5
(4)炭酸水素ナトリウム 50.0
(5)硫酸ナトリウム 48.7
製法:(1)〜(5)を均一に混合する。
【0044】
本発明の実施例1〜10について使用試験を行い、シワ,タルミ,肌のハリ,及びクスミの改善効果を評価した。その際、実施例1において、配合したミズガンピ抽出物を精製水に代替し、比較例1として同時に使用試験を行った。
【0045】
各試料について、シワ,タルミ,肌のハリの低下,及びクスミといった老化症状が顕著に認められる50〜60才代の男女パネラー各20名にブラインドにて1カ月間使用させ、使用前後の皮膚状態の変化を観察して評価した。皮膚の老化症状の指標として、シワ,タルミ,肌のハリ,及びクスミについて、「改善」,「やや改善」,「変化なし」の三段階で評価し、表4に各評価を得たパネラー数にて示した。
【0046】
【表4】
Figure 0004295473
【0047】
表4より、シワ,タルミ,肌のハリ,及びクスミについて、ミズガンピ属(Pemphis)植物抽出物を含有しない比較例使用群においては、半数以上のパネラーに改善が認められなかったが、ミズガンピ属(Pemphis)植物抽出物を配合した実施例使用群においては、6割以上のパネラーに明確な改善が認められた。
【0048】
以上のように、本発明の実施例においては、従来の比較例よりも、シワ,タルミ,肌のハリ,及びクスミといった皮膚の老化症状の改善に優れた効果を有していた。
【0049】
【発明の効果】
以上詳述したように、本発明により、線維芽細胞賦活作用と抗酸化作用とを有し、シワ,タルミ,肌のハリの低下,及びクスミ等の老化症状の予防や改善に優れた効果を発揮する皮膚外用剤を得ることが出来た。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a skin external preparation having an excellent effect in preventing or improving skin aging symptoms such as generation of wrinkles and spots, reduction in skin elasticity, and more specifically, dermal fibroblast activation action and antioxidant action The present invention relates to an external preparation for skin containing a Pemphis plant extract having
[0002]
[Prior art]
A decrease in the function of dermal fibroblasts due to aging causes a decrease or degeneration of the dermal matrix such as collagen and elastin, and is an important factor of aging symptoms such as wrinkles and a decrease in skin elasticity. In addition, oxidative damage due to external stress such as ultraviolet rays also causes aging symptoms such as wrinkles, spots, and a decrease in skin elasticity. Until now, in the field of topical skin preparations, various cell activators and antioxidants have been searched and formulated for the purpose of preventing or improving the aging symptoms due to such functional deterioration of cells and oxidative damage. Examples of the cell activator include ponkan essence (Japanese Patent Laid-Open No. 2001-131405), genus genus, peony and extracts thereof (Japanese Patent Laid-Open No. 2000-178198), chlorella extract using an organic solvent (Japanese Patent Laid-Open No. 11-335293), and the like. As the antioxidant, for example, an extract of the genus Heteroteca genus plant (JP-A-11-180886), an extract of cayuangin (JP-A-10-182413) and the like are known.
[0003]
However, already reported physiologically active substances often act only in a part of the aging phenomenon, and are insufficient as an essential improvement effect. In addition, when blended into the base of the external preparation for skin, to obtain an effective effect, it must be blended in a fairly high concentration, and may give an unfavorable color and odor to the formulation, etc. At present, there are few things that can satisfy all of the effects and stability.
[0004]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide an external preparation for skin that has a dermal fibroblast activation action and an antioxidant action, and is excellent in preventing and improving skin aging symptoms.
[0005]
[Means for Solving the Problems]
In order to find an effective ingredient excellent in prevention and improvement of skin aging symptoms, the present inventors have studied various dermal fibroblast activation effects and antioxidant effects. As a result, the present inventors have found an excellent dermal fibroblast activation action and antioxidant action in a Pemphis plant extract, and have completed the present invention.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The genus Pemphis is a plant belonging to the family Lamiaceae and is widely distributed in India, Malaysia and the Pacific Islands. Examples of the plants belonging to the genus Pemphis are Pemphis acidula Forst., Madagascar Mizampari ( Pempis madagascarensis (Bak.) H. Perr.) And the like.
[0007]
When using these Mizuganpi genera (Pemphis) plants, use the extract is generally used. For extraction, any part of the stem, branch, fruit, leaf, flower, seed, bark, sap, root, bud, etc. of the genus Pemphis plant can be used. Use leaves and seeds. In the extraction, it may be used as it is, but considering the extraction efficiency, it is preferable to perform the extraction after performing processing such as shredding, drying, and pulverization. The extraction can be performed by immersing in an extraction solvent or by an extraction method using a supercritical fluid or a subcritical fluid. In order to increase the extraction efficiency, homogenization may be performed in stirring or an extraction solvent. The extraction temperature is suitably about 5 ° C. to the boiling point of the extraction solvent. The extraction time varies depending on the type of extraction solvent and the extraction temperature, but it is appropriate to set it to about 1 hour to 14 days.
[0008]
Extraction solvents include water, lower alcohols such as methanol, ethanol, propanol, and isopropanol, polyhydric alcohols such as 1,3-butylene glycol, propylene glycol, dipropylene glycol, and glycerin, and ethers such as ethyl ether and propyl ether. And solvents such as esters such as ethyl acetate and butyl acetate, and ketones such as acetone and ethyl methyl ketone can be used, and one or more of these can be selected and used. Further, physiological saline, phosphate buffer, phosphate buffered saline, or the like may be used. Furthermore, you may use 1 type, or 2 or more types of supercritical fluids and subcritical fluids, such as water, a carbon dioxide, ethylene, propylene, ethanol, methanol, ammonia.
[0009]
The extract of the above-mentioned solvent of the genus Pemphis can be used as it is, but the concentrated and dried product can be dissolved again in water or a polar solvent, or the physiological action thereof is not impaired. You may use, after performing purification processes, such as decoloring, deodorizing, and desalting, or performing the fractionation process by column chromatography etc. The extract of the genus Pemphis and the treated product and fraction thereof can be freeze-dried after each treatment and fractionation and dissolved in a solvent before use. It can also be used by encapsulating in vesicles such as liposomes or microcapsules.
[0010]
In the present invention, by incorporating a plant extract of Pemphis ( Pemphis ) into an external preparation for skin, it exhibits an excellent effect in preventing and improving aging symptoms such as wrinkles, tarmi, skin firmness, and kusumumi. .
[0011]
The external preparation for skin having a dermal fibroblast activation effect and an antioxidant effect in the present invention contains a Pemphis plant extract as an active ingredient.
[0012]
The blending amount of the genus Pemphis plant extract in the present invention can be adjusted according to the type and purpose of the external preparation for skin, but is 0.0001 to 10.0 % by weight based on the total amount of the external preparation for skin. Is more preferable, and 0.001 to 5.0% by weight is more preferable.
[0013]
The external preparation for skin according to the present invention can be provided in various dosage forms such as lotion, emulsion, gel, cream, ointment, powder, granule and the like.
[0014]
In addition, the skin external preparation according to the present invention contains oily ingredients that are usually blended in pharmaceuticals, quasi-drugs, skin cosmetics, hair cosmetics and cleaning agents in addition to the plant extract of Pemphis ( Pempis ). , Moisturizers, powders, pigments, emulsifiers, solubilizers, detergents, UV absorbers, thickeners, drugs, fragrances, resins, antibacterial / antifungal agents, alcohols, and the like can be appropriately blended. Moreover, in the range which does not impair the effect of this invention, combined use with another cell activator, an antioxidant, and a plant extract is also possible.
[0015]
【Example】
Further, the features of the present invention will be described in detail by way of examples. First, the preparation method of the genus Pemphis plant extract of this invention is shown.
[0016]
[Preparation Method 1]
10 kg of a 50 wt% aqueous ethanol solution was added to 1 kg of a dry pulverized product of a genus Pemphis and immersed for 7 days at room temperature. The extract was recovered by filtration, after removal of the solvent gave Mizuganpi genus (Pemphis) plant extract.
[0017]
[Preparation Method 2]
Nine liters of water was added to 1 kg of a dry pulverized product of the genus Pemphis and the mixture was extracted by refluxing at 90 ° C. for 6 hours. The extract was recovered by filtration, after removal of the solvent gave Mizuganpi genus (Pemphis) plant extract.
[0018]
[Preparation Method 3]
Nine liters of methanol was added to 1 kg of a dry pulverized product of the genus Pemphis and immersed for 7 days at room temperature. The extract was recovered by filtration, after removal of the solvent gave Mizuganpi genus (Pemphis) plant extract.
[0019]
[Preparation Method 4]
A supercritical extractor was charged with a Pemphis plant and extracted using a supercritical fluid of carbon dioxide at 40 ° C. under an atmospheric pressure of 15 MPa. The extract was collected to obtain a Pemphis plant extract.
[0020]
Next, the dermal fibroblast activation effect of the genus Pemphis plant extract is shown.
[0021]
The evaluation was performed according to the following procedure. Normal human dermal fibroblasts were seeded in a 96-well microplate at 2.0 × 10 4 cells per well. The seeding medium used was Dulbecco's modified Eagle medium (DMEM) supplemented with 1% fetal bovine serum. After culturing for 24 hours, the culture medium was replaced with a test medium supplemented with a Pemphis plant extract, and further cultured for 48 hours. Next, the medium containing 400 μg / mL of 3- (4,5-dimethyl-2-thiazolyl) -2,5-diphenyltetrazolium bromide (MTT) was exchanged and cultured for 2 hours. Formazan produced by the opening of the tetrazolium ring was removed. Extraction was performed with 2-propanol, and absorbance at 550 nm was measured with a microplate reader. At the same time, the absorbance at 650 nm was measured as turbidity, and the cell activation effect was evaluated by the difference between the two measured values. Table 1 shows the evaluation results of the extract obtained by the preparation method 1 from the mixed site of Mizuganpi leaves and branches in terms of relative values with the cell activation effect when the extract is not added as 100.
[0022]
[Table 1]
Figure 0004295473
[0023]
As shown in Table 1, in the extract of mizuganpi, when 0.25 to 1.0 mg / ml of mizuganpi extract is added, the significant fibroblast activation effect with a risk rate of less than 1% compared to the case of no addition. Was recognized. From this, it was clarified that the genus Pemphis plant extract has an excellent fibroblast activation effect.
[0024]
Next, the antioxidant effect of the plant extract of Pemphis ( Pempis ) is shown.
[0025]
The evaluation was performed according to the following procedure. 100 μL of Mizumpi extract solution diluted to a concentration of 0.1 mg / mL with a 50 wt% aqueous ethanol solution was added as a sample to a 96-well microplate. Next, 100 μL of a 1,1-diphenyl-2-picrylhydrazyl (DPPH) solution prepared with ethanol to a concentration of 0.2 mM was added to a 96-well microplate. The mixture was left in the dark with stirring, and the absorbance at 516 nm was measured after 10 minutes and 17 hours. When the absorbance when the sample was not added was (A) and the absorbance when the sample was added was (B), the value of formula (1) was the radical elimination rate.
Formula (1) {1- (B) / (A)} × 100 (%)
Table 2 shows the experimental results of the extract obtained by Preparation Method 1 from the mixed site of Mizuganpi leaves and branches.
[0026]
[Table 2]
Figure 0004295473
[0027]
As is apparent from Table 2, it was found that the Pemphis plant extract has an excellent antioxidant effect.
[0028]
Then, although the prescription of the Example which mix | blended the extract of the genus Sphagnum ( Pempis ) based on this invention is shown, the extract of Mizumpi and Madagascar Mizumpi extract mix | blended with the prescription in Examples 7-19 is a leaf, It is an extract from the mixed part of the branch.
[0029]
[Examples 1 to 6] Latex (1) Squalane 10.0 (% by weight)
(2) Methylphenylpolysiloxane 4.0
(3) Hydrogenated palm kernel oil 0.5
(4) Hydrogenated soybean phospholipid 0.1
(5) Polyoxyethylene monostearate
Sorbitan (20E.O.) 1.3
(6) Sorbitan monostearate 1.0
(7) Glycerin 10.0
(8) Methyl paraoxybenzoate 0.1
(9) Carboxyvinyl polymer 0.15
(10) Purified water 50.85
(11) Arginine (1 wt% aqueous solution) 20.0
(12) The genus Sphagnum plant extract 2.0 listed in Table 3
Production method: The oil phase components (1) to (6) are heated and dissolved at 80 ° C. On the other hand, the aqueous phase components (7) to (10) are dissolved by heating at 80 ° C. The oil phase component is added to this while stirring and uniformly emulsified with a homogenizer. After emulsification, start cooling and add (11) and (12) sequentially and mix uniformly.
[0030]
[Table 3]
Figure 0004295473
[0031]
[Example 7] Lotion (1) Ethanol 15.0 (wt%)
(2) Polyoxyethylene (40E.O.) hydrogenated castor oil 0.3
(3) Fragrance 0.1
(4) Purified water 81.36
(5) Citric acid 0.02
(6) Sodium citrate 0.1
(7) Glycerin 3.0
(8) Hydroxyethyl cellulose 0.1
(9) Mizuganpi extract [Preparation method 3] 0.02
Production method: (2) and (3) are dissolved in (1). After dissolution, (4) to (8) are sequentially added, and then sufficiently stirred, (9) is added and mixed uniformly.
[0032]
[Example 8] Cream (1) Squalane 10.0 (% by weight)
(2) Stearic acid 2.0
(3) Hydrogenated palm kernel oil 0.5
(4) Hydrogenated soybean phospholipid 0.1
(5) Cetanol 3.6
(6) Lipophilic glyceryl monostearate 2.0
(7) Glycerin 10.0
(8) Methyl paraoxybenzoate 0.1
(9) Arginine (20% by weight aqueous solution) 15.0
(10) Purified water 40.7
(11) Carboxyvinyl polymer (1% by weight aqueous solution) 15.0
(12) Mizuganpi extract [Preparation method 1] 1.0
Production method: The oil phase components (1) to (6) are heated and dissolved at 80 ° C. On the other hand, the aqueous phase components (7) to (10) are dissolved by heating at 80 ° C. The oil phase component is added to this while stirring and uniformly emulsified with a homogenizer. After the emulsification is completed, add (11), start cooling, add (12) at 40 ° C., and mix uniformly.
[0033]
Figure 0004295473
Production method: The aqueous phase components (1) to (6) are mixed and dissolved by heating at 75 ° C. On the other hand, the oil phase components (7) to (14) are mixed and dissolved by heating at 75 ° C. Next, the oil phase component is added to the aqueous phase component and preliminary emulsification is performed, followed by uniform emulsification with a homomixer. Cooling is started after emulsification, and (15) is added at 50 ° C. Cool further to 40 ° C, add (16) and mix evenly.
[0034]
[Example 10] Aqueous gel (1) Carboxyvinyl polymer 0.5 (% by weight)
(2) Purified water 86.1
(3) Sodium hydroxide (10% by weight aqueous solution) 0.5
(4) Ethanol 10.0
(5) Methyl paraoxybenzoate 0.1
(6) Fragrance 0.1
(7) Mizuganpi extract [Preparation method 4] 0.2
(8) Polyoxyethylene (60E.O.) hydrogenated castor oil 0.1
(9) Glycerin 2.0
(10) Mizumpi extract [Preparation method 3] 0.2
(11) Madagascar Mizumpi extract [Preparation method 1] 0.2
Manufacturing method: (1) is added to (2), and after stirring uniformly, (3) is added. After stirring uniformly, add (5) previously dissolved in (4). After stirring uniformly, the previously mixed (6) to (8) are added. After stirring uniformly, (9) to (11) are sequentially added and mixed uniformly.
[0035]
[Example 11] Cleansing fee (1) Squalane 81.95
(2) Polyoxyethylene glyceryl isostearate 15.0
(3) Purified water 3.0
(4) Mizuganpi extract [Preparation method 4] 0.02
(5) Madagascar Mizumpi Extract [Preparation Method 4] 0.03
Manufacturing method: (1) and (2) are uniformly dissolved. To this, (3) to (5) are sequentially added and mixed uniformly.
[0036]
[Example 12] Face washing foam (1) Stearic acid 16.0 (wt%)
(2) Myristic acid 16.0
(3) Lipophilic glyceryl monostearate 2.0
(4) Glycerin 20.0
(5) Sodium hydroxide 7.5
(6) Palm oil fatty acid amidopropyl betaine 1.0
(7) Purified water 36.5
(8) Mizumpi extract [Preparation method 3] 0.5
(9) Madagascar Mizumpi Extract [Preparation Method 2] 0.5
Production method: The oil phase components (1) to (4) are heated and dissolved at 80 ° C. On the other hand, the aqueous phase components (5) to (7) are heated and dissolved at 80 ° C., and mixed and stirred uniformly with the oil phase components. Cooling is started, and (8) and (9) are added at 40 ° C. and mixed uniformly.
[0037]
[Example 13] Make-up base cream (1) Squalane 10.0 (wt%)
(2) Cetanol 2.0
(3) Glycerin tri-2-ethylhexanoate 2.5
(4) Lipophilic glyceryl monostearate 1.0
(5) Propylene glycol 11.0
(6) Sucrose fatty acid ester 1.3
(7) Purified water 70.4
(8) Titanium oxide 1.0
(9) Bengala 0.1
(10) Yellow iron oxide 0.4
(11) Fragrance 0.1
(12) Mizumpi extract [Preparation method 2] 0.1
(13) Madagascar Mizumpi Extract [Preparation Method 1] 0.1
Production method: The oil phase components (1) to (4) are mixed and heated and dissolved at 75 ° C. On the other hand, the aqueous phase components (5) to (7) are mixed and dissolved by heating at 75 ° C., and the pigments (8) to (10) are added thereto and dispersed uniformly with a homomixer. The oil phase component is added to the water phase component and emulsified with a homomixer. Cooling is started after the emulsification is completed, and the components (11) to (13) are added at 40 ° C. and mixed uniformly.
[0038]
Figure 0004295473
Production method: The oil phase components (1) to (6) are mixed and dissolved by heating at 75 ° C. On the other hand, the aqueous phase components (7) to (10) are mixed and dissolved by heating at 75 ° C., and the pigments (11) to (15) are added thereto and uniformly dispersed with a homomixer. Add oil phase ingredients and emulsify. Cooling is started after the emulsification is completed, and the components (16) to (18) are sequentially added at 40 ° C. and mixed uniformly.
[0039]
[Example 15] Water-in-oil emollient cream (1) Liquid paraffin 30.0 (wt%)
(2) Microcrystalline wax 2.0
(3) Vaseline 5.0
(4) Diglycerin oleate 5.0
(5) Sodium chloride 1.3
(6) Potassium chloride 0.1
(7) Propylene glycol 3.0
(8) 1,3-butylene glycol 5.0
(9) Methyl paraoxybenzoate 0.1
(10) Mizuganpi extract [Preparation method 1] 0.5
(11) Purified water 45.9
(12) Fragrance 0.1
(13) Madagascar Mizumpi Extract [Preparation Method 4] 2.0
Production method: Dissolve (5) and (6) in a part of (11) to 50 ° C., and gradually add to (4) heated to 50 ° C. with stirring. After mixing this, it disperse | distributes uniformly to (1)-(3) heated and melt | dissolved at 70 degreeC. (7) to (10) are added to the remainder of (11) heated and dissolved at 70 ° C. while stirring and emulsified with a homomixer. Cooling is started after the emulsification, and (12) and (13) are added at 40 ° C. and mixed uniformly.
[0040]
[Example 16] Hair artnic (1) Ethanol 50.0 (% by weight)
(2) Purified water 49.898
(3) Mizuganpi extract [Preparation method 3] 0.001
(4) Madagascar Mizumpi Extract [Preparation Method 4] 0.001
(5) Fragrance 0.1
Production method: Components (1) to (5) are mixed and homogenized.
[0041]
[Example 17] Pack (1) 68.9 (% by weight) purified water
(2) Polyvinyl alcohol 12.0
(3) Ethanol 10.0
(4) Glycerin 5.0
(5) Polyethylene glycol (average molecular weight 1000) 2.0
(6) Mizuganpi extract [Preparation method 1] 1.0
(7) Madagascar Mizumpi Extract [Preparation Method 2] 1.0
(8) Fragrance 0.1
Production method: (2) and (3) are mixed, heated to 80 ° C, and then dissolved in (1) heated to 80 ° C. After uniformly dissolving, (4) to (5) are added, and cooling is started while stirring. Cool to 40 ° C., add (6) to (8) and mix uniformly.
[0042]
Figure 0004295473
Production method: The oil phase components (1) to (6) are mixed and heated and dissolved at 75 ° C. On the other hand, the aqueous phase components (7) to (10) are dissolved by heating at 75 ° C., the oil phase component is added, and the mixture is emulsified with a homomixer. Cooling is started after the emulsification is completed, and the components (11) to (13) are added at 40 ° C. and mixed uniformly.
[0043]
[Example 19] Bath agent (1) Fragrance 0.3 (% by weight)
(2) Mizuganpi extract [Preparation method 1] 0.5
(3) Madagascar Mizumpi Extract [Preparation Method 3] 0.5
(4) Sodium bicarbonate 50.0
(5) Sodium sulfate 48.7
Production method: (1) to (5) are mixed uniformly.
[0044]
The use test was performed about Examples 1-10 of this invention, and the improvement effect of a wrinkle, a sagging, skin firmness, and a cloth was evaluated. At that time, in Example 1, the blended Mizuganpi extract was replaced with purified water, and a use test was simultaneously conducted as Comparative Example 1.
[0045]
For each sample, 20 male and female panelists in their 50's to 60's who have marked aging symptoms such as wrinkles, tarmi, reduced skin firmness, and rashes were used blindly for 1 month, and the skin condition before and after use Was observed and evaluated. As an index of skin aging symptoms, wrinkles, tarmi, skin firmness, and kusumumi were evaluated in three stages, “Improved”, “Slightly improved”, and “No change”. Indicated.
[0046]
[Table 4]
Figure 0004295473
[0047]
From Table 4, in the group using comparative examples not containing the plant extract of Pemphis ( Pemphis ) for wrinkles, tarmi, skin firmness, and kusumi , improvement was not recognized in more than half of the panelists. In the example use group containing the Pemphis ) plant extract, over 60% of panelists showed a clear improvement.
[0048]
As mentioned above, in the Example of this invention, it had the effect excellent in improvement of the aging symptom of skin, such as a wrinkle, a sagging, skin elasticity, and a Kusumi, compared with the conventional comparative example.
[0049]
【The invention's effect】
As described above in detail, according to the present invention, it has a fibroblast activation action and an antioxidant action, and has an excellent effect in preventing and improving aging symptoms such as wrinkles, tarmi, reduction of skin firmness, and kusumumi. The skin external preparation which exhibits was able to be obtained.

Claims (1)

ミズガンピ属(Pemphis)植物抽出物を含有することを特徴とする真皮線維芽細胞賦活剤A dermal fibroblast activator comprising a plant extract of Pemphis ( Pemphis ).
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