JP4683413B2 - Textured resin tableware - Google Patents
Textured resin tableware Download PDFInfo
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- JP4683413B2 JP4683413B2 JP2005142479A JP2005142479A JP4683413B2 JP 4683413 B2 JP4683413 B2 JP 4683413B2 JP 2005142479 A JP2005142479 A JP 2005142479A JP 2005142479 A JP2005142479 A JP 2005142479A JP 4683413 B2 JP4683413 B2 JP 4683413B2
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- 239000011347 resin Substances 0.000 title claims description 58
- 229920005989 resin Polymers 0.000 title claims description 58
- 238000000034 method Methods 0.000 claims description 20
- 238000000465 moulding Methods 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 4
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 10
- 235000013305 food Nutrition 0.000 description 6
- 230000037303 wrinkles Effects 0.000 description 6
- 235000012041 food component Nutrition 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 239000005428 food component Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 235000021156 lunch Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005417 food ingredient Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Description
本発明は、表面がしぼ加工された樹脂製食器に関する。さらに詳しくは表面がしぼ加工され耐傷つき性が改善された樹脂製食器に関する。 The present invention relates to a resin tableware whose surface is textured. More particularly, the present invention relates to a resin tableware whose surface has been wrought and has improved scratch resistance.
学校、病院や企業の社員食堂など大規模に給食する施設では、食器として樹脂製食器が多く使用されている。樹脂製食器が軽量で割れにくく、形状および品質が均質なものを安価で入手しうることがその主たる理由となっている。 Resin tableware is often used as tableware in large-scale facilities such as schools, hospitals, and company cafeterias. The main reason is that resin-made tableware is light and difficult to break, and can be obtained at low cost with a uniform shape and quality.
このような樹脂製食器は、使用後機械洗浄され、殺菌、乾燥して保管されるが、その工程は、比較的高温で行われることから、食器の材質として耐熱性を有する樹脂が選ばれ、かつ水と接する機会が多いことから耐水性が要求されるので、耐水性が良いものが選択される。 Such resin tableware is machine-washed after use, sterilized, dried and stored, but since the process is performed at a relatively high temperature, a resin having heat resistance is selected as the material of the tableware, In addition, since water resistance is required because there are many opportunities to come into contact with water, a material having good water resistance is selected.
しかしながら、樹脂製食器は表面が傷つきやすいため、樹脂性食器を洗浄や乾燥するとき、貯蔵や運搬するときなど、食器の内表面と外表面が触れ合う結果、食器表面に細かい傷が生じ易い。そのためその傷による汚れや、食品成分が傷に浸透することによる汚れが目立ってくるという問題がある。特に食器内表面の汚れが目立つと、感覚的に食器の美観や衛生感を損なうこととなる。 However, since the surface of resin tableware is easily damaged, when the resinous tableware is washed or dried, stored or transported, the table surface tends to be finely scratched as a result of contact between the inner surface and the outer surface. Therefore, there is a problem that dirt due to the scratches and dirt due to penetration of food components into the scratches become conspicuous. In particular, when the stains on the inner surface of the tableware are conspicuous, the beauty and hygiene of the tableware will be impaired.
そのため、樹脂製食器表面の耐傷つき性を改善するために、樹脂表面をコート剤でコーティングする方法があるが、学校給食等の給食施設においては、４０〜８０℃でアルカリ洗剤によって洗浄した後、消毒保管庫などで８０℃を超える高温で乾燥させるため、従来のコーティングでは、このような厳しい使用環境に耐える接着強度を得るのが困難であるので、耐傷つき性改善の方法としては採用できなかった。 Therefore, in order to improve the scratch resistance of the resin tableware surface, there is a method of coating the resin surface with a coating agent, but in school facilities such as school lunches, after washing with an alkaline detergent at 40-80 ° C, Because it is dried at a high temperature exceeding 80 ° C in a disinfecting storage, etc., it is difficult to obtain adhesive strength that can withstand such harsh usage environments with conventional coatings, so it cannot be used as a method for improving scratch resistance. It was.
本発明者らは、表面の耐傷つき性が改善された樹脂製食器の開発に鋭意努力した結果、本発明に到達した。
すなわち本発明は、軽量で割れにくく、形状および品質が均質なものを安価で入手しうるという樹脂製食器の利点を維持しながら、その表面の耐傷つき性が改善された樹脂製食器を提供するものである。
The inventors of the present invention have arrived at the present invention as a result of diligent efforts to develop a resin tableware with improved surface scratch resistance.
That is, the present invention provides a resin tableware with improved scratch resistance on the surface while maintaining the advantages of a resin tableware that is lightweight, difficult to break, and can be obtained at a low price with a uniform shape and quality. Is.
本発明は、成形食器の内表面積の３０％以上に相当する金型表面の全面に、エッチング法によって断面視で滑らかな曲線を描いて凹凸が形成されているしぼ加工した金型を用いて、射出成形法によって成形することによって得られた樹脂製食器を提供する。 The present invention uses a wrought mold in which irregularities are formed on a whole surface of a mold corresponding to 30% or more of the inner surface area of the molded tableware by drawing a smooth curve in a sectional view by an etching method. A resin tableware obtained by molding by an injection molding method is provided.
少なくとも内表面にしぼ加工が施された前記の樹脂製食器は本発明の好ましい態様である。 The above-mentioned resin tableware in which at least the inner surface is textured is a preferred embodiment of the present invention.
前記しぼ加工が、内表面積の３０％以上である前記の樹脂製食器は本発明の好ましい態様である。 The resin tableware in which the graining is 30% or more of the inner surface area is a preferred embodiment of the present invention.
表面をしぼ加工した金型を用いて射出成形法によって成形することによって得られた前記の樹脂製食器は本発明の好ましい態様である。 The above-mentioned resin tableware obtained by molding by injection molding using a mold whose surface has been wrought is a preferred embodiment of the present invention.
前記樹脂が、ポリプロピレン、ポリカーボネート及びポリエチレンナフタレートから選ばれた少なくとも１種である前記の樹脂製食器は本発明の好ましい態様である。 The resin tableware in which the resin is at least one selected from polypropylene, polycarbonate and polyethylene naphthalate is a preferred embodiment of the present invention.
本発明により、軽量で割れにくく、形状および品質が均質なものを安価で入手しうるという樹脂製食器の利点を維持しながら、その表面の耐傷つき性が改善された樹脂製食器が提供される。
本発明によれば、樹脂製食器の少なくとも内表面にしぼ加工が施されているので、食器同士が接触しても、内面に傷が生じにくいため、その結果食器内面に傷による汚れや、食品成分が傷に浸透することによる汚れが生じにくい樹脂製食器が提供される。
According to the present invention, there is provided a resin tableware having improved surface scratch resistance while maintaining the advantages of a resin tableware that can be obtained at a low price, which is lightweight, difficult to break, and uniform in shape and quality. .
According to the present invention, since at least the inner surface of the resin tableware is subjected to wrinkle processing, even if the tableware comes into contact with each other, the inner surface is less likely to be scratched. Provided is a resin tableware that is less susceptible to contamination due to penetration of ingredients into wounds.
本発明は、表面にしぼ加工が施された樹脂製食器を提供するものである。しぼ加工を施すことによって、軽量で割れにくく、形状および品質が均質なものを安価で入手しうるという樹脂製食器の利点を維持しながら、その表面の耐傷つき性が改善された樹脂製食器が提供される。 The present invention provides a resin tableware having a surface that has been textured. Resin tableware with improved scratch resistance on its surface while maintaining the advantage of resin tableware that it is lightweight, hard to break, and can be obtained with a uniform shape and quality at low cost Provided.
樹脂製食器において、食器同士が接触して内面に傷が生じ、傷による汚れや食品成分が傷に浸透することによる汚れを生じにくくするという観点からは、少なくとも内表面にしぼ加工を施こすことが好ましい。
なお、本発明において「しぼ加工」とは、表面に多数の微細な凹凸を形成させることをいう。本発明のしぼは、通常皮しぼとか梨地と呼ばれる表面の凹凸も含むものである。凹凸のうち滑らかな曲線を描く凹凸は、本発明のしぼのうちでより好ましい態様である。
In resin-made tableware, the tableware comes into contact with each other and scratches are generated on the inner surface. From the viewpoint of making it difficult for stains caused by scratches and stains due to the penetration of food ingredients into the scratches, at least the inner surface should be subjected to a moistening process. Is preferred.
In the present invention, “texture processing” refers to forming a large number of fine irregularities on the surface. The wrinkles of the present invention also include surface irregularities usually called skin wrinkles or satin. The unevenness that draws a smooth curve among the unevenness is a more preferable aspect of the grain of the present invention.
本発明の樹脂製食器は、通常調理済食品を収容して食事に供される器をいい、その目的に使用される形状であれば特に制限はなく、椀型であっても、皿型であっても、その他の形状であってもよい。 The resin tableware of the present invention refers to a container that normally contains cooked food and is served for meals, and is not particularly limited as long as it has a shape used for that purpose. Or other shapes.
本発明の樹脂製食器の好ましい態様においては、少なくとも内表面にしぼ加工が施されている。しぼ加工は、内表面積の３０％以上に施されていればよく、内表面全面に施されていてもよい。表面の耐傷つき性が改善されるという目的のためには、内表面のほぼ全面にしぼ加工が施されているのが好ましい。 In a preferred embodiment of the resin tableware of the present invention, at least the inner surface is textured. The graining process may be performed on 30% or more of the inner surface area, and may be performed on the entire inner surface. For the purpose of improving the scratch resistance of the surface, it is preferable that the entire inner surface is wrinkled.
樹脂製食器の内表面の一部にしぼ加工を施す場合、食器底部を中心に施すのが効果的である。食器を積み重ねるとき、食器底部の内表面は、上方の食器の糸尻と当接して傷がつき易いからである。 In the case where a part of the inner surface of the resin tableware is subjected to warping processing, it is effective to apply it to the bottom of the tableware. This is because when the tableware is stacked, the inner surface of the bottom of the tableware comes into contact with the thread bottom of the upper tableware and is easily damaged.
本発明において、しぼ加工として表面に多数の微細な凹凸が形成されるが、微細な凹凸の形態によっては、凹凸間に浸透した食品成分が残留することによって汚れが生じる結果となるので、食品成分が残留しない程度にしぼ加工を調節することが好ましい。しぼ加工の調節は、凹凸の密度や大きさを変更するなどの設計変更をすることにより行うことができる。しぼ加工による凹凸の高さは適宜選択することができるので制限はないが、１５〜２０μｍ程度であれば良好な効果が得られる。 In the present invention, a number of fine irregularities are formed on the surface as a squeezing process, but depending on the form of the fine irregularities, the food component that has penetrated between the irregularities results in contamination, so that the food component It is preferable to adjust the wrinkle processing to such an extent that does not remain. The graining process can be adjusted by making a design change such as changing the density or size of the irregularities. The height of the unevenness due to the graining process can be selected as appropriate, so there is no limit.
このような食器にしぼ加工を施す方法の好ましい例としては、樹脂製食器を成形するときに、用いる金型表面で、食器にしぼ加工を施す箇所に相当する部分をしぼ加工しておく方法を挙げることができる。金型の表面加工は、化学的又は物理的処理によって金型の表面に多数の微細な凹凸を形成し，その加工面をしぼ加工することによって行うことができる。このようなしぼ加工は、例えばサンドブラストやショットブラストなどのブラスト法によって物理的に行うことができるし、またエッチング法などで表面を腐蝕させる化学的方法によって行うこともできる。 As a preferred example of a method for applying a tableware to such tableware, when molding resin tableware, a method is provided in which a portion corresponding to the portion to be subjected to tableware processing is processed on the surface of a mold to be used. Can be mentioned. The surface processing of the mold can be performed by forming a large number of fine irregularities on the surface of the mold by chemical or physical treatment, and then squeezing the processed surface. Such graining can be physically performed by a blasting method such as sand blasting or shot blasting, or can be performed by a chemical method of corroding the surface by an etching method or the like.
しぼ加工による凹凸は、断面視で種々の形状を取ることができるが、滑らかな曲線を描いていると、使用による食器の汚染を除去しやすいので、本発明の好ましい態様である。このような滑らかな曲線を描いている凹凸を金型に形成させるには、エッチング法の採用が好ましい。 Although the unevenness | corrugation by wrinkle processing can take various shapes by sectional view, since it is easy to remove the contamination of the tableware by using a smooth curve, it is a preferable aspect of this invention. In order to form irregularities that draw such a smooth curve in the mold, it is preferable to employ an etching method.
樹脂製食器を成形する方法としては、従前公知の成形方法を採用することができるが、
中でも射出成形法が好ましい。
As a method of molding resin tableware, a conventionally known molding method can be adopted,
Of these, the injection molding method is preferable.
樹脂製食器用の樹脂としては、従来樹脂製食器に使用されている樹脂から適宜選択して使用することができるが、特に射出成形法に適する樹脂が好ましい。好ましい樹脂の例としては、ポリプロピレン（ＰＰ）、ポリカーボネート（ＰＣ）及びポリエチレンナフタレート（ＰＥＮ）を挙げることができる。 The resin for resin tableware can be appropriately selected from the resins conventionally used for resin tableware, but is preferably a resin suitable for the injection molding method. Examples of preferable resins include polypropylene (PP), polycarbonate (PC), and polyethylene naphthalate (PEN).
本発明において内表面にしぼ加工が施されている食器の例を図に基づいて説明する。図１は、食器１の内表面２にしぼ加工が施されている様子を示す斜視図である。図１の食器の一部の断面図が図２に示されているが、内表面２がしぼ加工が施された表面であり、断面３において内表面に微細な凹凸が形成されている様子がわかる。
In the present invention, an example of tableware in which the inner surface is subjected to a graining process will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which the
本発明は、樹脂製食器の表面にしぼ加工が施されていると、食器同士が触れ合っても傷がつき難くなるという新たな知見に基づいて完成されたものであり、従来の技術からは想像できないようなすぐれた効果を提供するものである。 The present invention has been completed on the basis of the new knowledge that when the surface of a resin tableware has been subjected to warping, even if the tableware comes into contact with each other, it is difficult to be damaged. It provides an excellent effect that cannot be achieved.
本発明の樹脂製食器は、表面にしぼ加工が施されているので、従来の樹脂製食器とは異なった外観と触感を与える樹脂製食器となる。その特徴を活かして、表面光沢がなく高級感を出すなど新たな価値を付加するのに利用することも可能となる。 Since the surface of the resin tableware of the present invention has been subjected to warp processing, it becomes a resin tableware that gives an appearance and feel different from those of conventional resin tableware. Taking advantage of this feature, it can be used to add new value, such as a high-quality appearance without surface gloss.
本発明の樹脂製食器は、食器同士が接触しても、内面に傷が生じにくいため、その結果食器内面に傷による汚れや、食品成分が傷に浸透することによる汚れが生じにくいので、学校、病院や企業の社員食堂など大規模に給食する施設において、耐傷つき性が改善された樹脂製食器として安心して使用できる樹脂製食器である。 The resin tableware of the present invention is less likely to be scratched on the inner surface even when the tableware comes into contact with each other. Resin tableware that can be safely used as a resin tableware with improved scratch resistance in large-scale facilities such as hospitals and company employee cafeterias.
以下に、本発明を実施例によってより詳細に説明するが、本発明はこれらの例によって何ら制限されるものではない。 The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.
（実施例１）
食器内面全面に当る金型箇所にしぼが丸く滑らかであるＬｅｏシボ（株式会社棚澤八光社）のパターンのしぼ加工を施した金型を用いて、ポリエチレンナフタレート樹脂（帝人化成株式会社製）を射出成形して、直径１３．６ｃｍ、高さ５．７ｃｍの椀型食器を製造した。
得られた樹脂製食器について、下記の方法で耐傷つき性試験と耐汚染性試験を行った。結果を下記表１に示すが、耐傷つき性試験では、内外面ともに傷は観察されず、本発明の食器のすぐれた耐傷つき性が確認された。また、耐汚染性試験では、しぼ加工のない比較例１の食器と同等の耐汚染性が確認された。
Example 1
Polyethylene naphthalate resin (manufactured by Teijin Kasei Co., Ltd.) using a mold that has been subjected to patterning of Leo Shibo (Tanazawa Yako Co., Ltd.) pattern with a round and smooth bow on the inner surface of the table. ) Was injection molded to produce a bowl-shaped tableware having a diameter of 13.6 cm and a height of 5.7 cm.
The obtained resin tableware was subjected to a scratch resistance test and a stain resistance test by the following methods. The results are shown in Table 1 below. In the scratch resistance test, scratches were not observed on the inner and outer surfaces, and the excellent scratch resistance of the tableware of the present invention was confirmed. In addition, in the stain resistance test, it was confirmed that the stain resistance was equivalent to that of the tableware in Comparative Example 1 without any grain processing.
耐傷つき性
振動試験機に固定したステンレス製食器カゴに、食器を上向きに２０枚積み重ねた状態でセットする。振幅上下３５ｍｍ、振動数７，３００回／時で、１５０，０００回振動させたのち、食器の内外面を目視によって観察し、傷の有無を観察し、下記基準で判定した。
○：内外面ともに傷は観察されなかった。
×：内外面に傷が観察された。
Set in a state where 20 pieces of tableware are stacked upward in a stainless steel table basket fixed to a scratch-resistant vibration testing machine. After oscillating 150,000 times at an amplitude of 35 mm and a vibration frequency of 7,300 times / hour, the inner and outer surfaces of the tableware were visually observed, the presence or absence of scratches was observed, and the following criteria were determined.
○: No scratches were observed on the inner and outer surfaces.
X: Scratches were observed on the inner and outer surfaces.
耐汚染性
食器内面に食材を付けて、指でこすりつけた後、常温で３０分放置した。
続いて食材汚れをペーパータオルで軽くふき取った後、洗浄機にかけた。
洗浄した後の食器内面を、目視で観察して食材汚れの有無を観察し、下記基準で判定した。
○：食材汚れが観察されなかった。
×：食材汚れが観察された。
After the food was put on the inner surface of the stain-resistant tableware and rubbed with fingers, it was left at room temperature for 30 minutes.
Subsequently, the food stains were lightly wiped with a paper towel and then put on a washing machine.
The inner surface of the dish after washing was visually observed to observe the presence or absence of food stains, and judged according to the following criteria.
○: No food stains were observed.
X: Food stains were observed.
（比較例１）
実施例１において、しぼ加工が施されていない金型を使用する結果、表面にしぼ加工が施されていない樹脂製食器を得るほかは、実施例１と同様にして樹脂製食器を製造し、得られた樹脂食器について実施例１と同様にして耐傷つき性試験および耐汚染性試験を行った。耐傷つき性試験は、実施例１の試験の際に、同じ食器カゴに食器をセットして同時に試験を行った。結果を表１に示す。
(Comparative Example 1)
In Example 1, as a result of using a mold that has not been subjected to graining, a resin tableware is produced in the same manner as in Example 1 except that the surface of the table is not subjected to graining. The obtained resin tableware was subjected to a scratch resistance test and a stain resistance test in the same manner as in Example 1. In the scratch resistance test, tableware was set in the same tableware basket during the test of Example 1, and the test was simultaneously performed. The results are shown in Table 1.
本発明により、軽量で割れにくく、形状および品質が均質なものを安価で入手しうるという樹脂製食器の利点を維持しながら、その表面の耐傷つき性を改善した樹脂製食器が提供される。
本発明によれば、樹脂製食器の少なくとも内表面にしぼ加工が施されているので、食器同士が接触しても、内面に傷が生じにくいため、食器内面に傷による汚れや、食品成分が傷に浸透することによる汚れが生じにくい樹脂製食器が提供される。
本発明によって、学校、病院や企業の社員食堂など大規模に給食する施設において、耐傷つき性が改善された食器として安心して使用できる樹脂製食器が提供される。
According to the present invention, there is provided a resin tableware having improved surface damage resistance while maintaining the advantages of a resin tableware that is lightweight, difficult to break, and can be obtained at a low price with a uniform shape and quality.
According to the present invention, since at least the inner surface of the resin tableware is subjected to wrinkle processing, even if the tableware comes into contact with each other, the inner surface is less likely to be scratched. There is provided a resin tableware that is less likely to be contaminated by penetrating a wound.
According to the present invention, resin tableware that can be used with confidence as tableware with improved scratch resistance is provided in facilities that serve large-scale meals such as schools, hospitals, and company employee cafeterias.
１．椀型樹脂製食器
２．食器内表面
３、食器の断面
1. A bowl-shaped resin tableware2. Tableware
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005142479A JP4683413B2 (en) | 2005-05-16 | 2005-05-16 | Textured resin tableware |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2005142479A JP4683413B2 (en) | 2005-05-16 | 2005-05-16 | Textured resin tableware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006314675A JP2006314675A (en) | 2006-11-24 |
| JP4683413B2 true JP4683413B2 (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2005142479A Active JP4683413B2 (en) | 2005-05-16 | 2005-05-16 | Textured resin tableware |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7489190B2 (en) | 2019-12-10 | 2024-05-23 | 三信化工株式会社 | Textured resin dish lid |
| CN114179312A (en) * | 2021-12-21 | 2022-03-15 | 三信化工株式会社 | Resin tableware subjected to pattern etching treatment and injection mold |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223865U (en) * | 1988-08-01 | 1990-02-16 | ||
| JPH0374034A (en) * | 1989-05-25 | 1991-03-28 | Tokyo Electron Ltd | Plasma device |
| JPH0670677U (en) * | 1993-03-22 | 1994-10-04 | 英也 島田 | Glass mug with minute irregularities on the inner surface |
| JPH10234549A (en) * | 1997-02-28 | 1998-09-08 | Satoru Ikeda | Glass for sparkling beverage |
| JPH1156565A (en) * | 1997-08-26 | 1999-03-02 | Noritake Co Ltd | Weather resistant tableware |
-
2005
- 2005-05-16 JP JP2005142479A patent/JP4683413B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223865U (en) * | 1988-08-01 | 1990-02-16 | ||
| JPH0374034A (en) * | 1989-05-25 | 1991-03-28 | Tokyo Electron Ltd | Plasma device |
| JPH0670677U (en) * | 1993-03-22 | 1994-10-04 | 英也 島田 | Glass mug with minute irregularities on the inner surface |
| JPH10234549A (en) * | 1997-02-28 | 1998-09-08 | Satoru Ikeda | Glass for sparkling beverage |
| JPH1156565A (en) * | 1997-08-26 | 1999-03-02 | Noritake Co Ltd | Weather resistant tableware |
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| JP2006314675A (en) | 2006-11-24 |
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