Patents by Inventor Eiichiro Yagi
Eiichiro Yagi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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METHOD FOR EVALUATING GLOW OF SKIN, METHOD FOR EXAMINING SKIN GLOW IMPROVERS, AND SKIN GLOW IMPROVER
Publication number: 20190212136Abstract: Provided are an evaluation method for objectively evaluating the glow of the skin, a skin glow improver, and a method for examining skin glow improvers. This method for evaluating the glow of the skin comprises assessing the specular reflectance and diffuse reflectance of skin after polarized light is applied to the surface of the skin, and determining that glow is present in the skin when prescribed conditions are satisfied. A skin glow improver is provided by combining an alkali metal salt of alkoxysalicylic acid and trimethylglycine. This method for examining skin glow improvers makes it possible, using a significant decrease in surface roughness as an indicator, to examine samples capable of improving the specular reflectance of the skin.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Applicant: Shiseido Company, Ltd.Inventors: Yuji MASUDA, Eiichiro YAGI, Tomohiro KUWAHARA -
Method for evaluating flow of skin, method for examining skin glow improvers, and skin glow improver
Patent number: 10281267Abstract: Provided are an evaluation method for objectively evaluating the glow of the skin, a skin glow improver, and a method for examining skin glow improvers. This method for evaluating the glow of the skin comprises assessing the specular reflectance and diffuse reflectance of skin after polarized light is applied to the surface of the skin, and determining that glow is present in the skin when prescribed conditions are satisfied. A skin glow improver is provided by combining an alkali metal salt of alkoxysalicylic acid and trimethylglycine. This method for examining skin glow improvers makes it possible, using a significant decrease in surface roughness as an indicator, to examine samples capable of improving the specular reflectance of the skin.Type: GrantFiled: November 10, 2015Date of Patent: May 7, 2019Assignee: SHISEIDO COMPANY, LTD.Inventors: Yuji Masuda, Eiichiro Yagi, Tomohiro Kuwahara -
Patent number: 9970848Abstract: The invention relates to providing a method for more conveniently evaluating stratum corneum condition. A stratum corneum sheet is contacted with a solution of a water-soluble dye, and the staining intensity or fluorescence intensity is measured to allow convenient evaluation of the stratum corneum condition. There is further provided a method for evaluating the ameliorating effect of a cosmetic or cosmetic treatment on the stratum corneum, by implementing the method for evaluating stratum corneum condition using a water-soluble dye according to the invention.Type: GrantFiled: January 21, 2014Date of Patent: May 15, 2018Assignee: Shiseido Company, Ltd.Inventors: Eiichiro Yagi, Ichiro Iwai
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METHOD FOR EVALUATING GLOW OF SKIN, METHOD FOR EXAMINING SKIN GLOW IMPROVERS, AND SKIN GLOW IMPROVER
Publication number: 20170336199Abstract: Provided are an evaluation method for objectively evaluating the glow of the skin, a skin glow improver, and a method for examining skin glow improvers. This method for evaluating the glow of the skin comprises assessing the specular reflectance and diffuse reflectance of skin after polarized light is applied to the surface of the skin, and determining that glow is present in the skin when prescribed conditions are satisfied. A skin glow improver is provided by combining an alkali metal salt of alkoxysalicylic acid and trimethylglycine. This method for examining skin glow improvers makes it possible, using a significant decrease in surface roughness as an indicator, to examine samples capable of improving the specular reflectance of the skin.Type: ApplicationFiled: November 10, 2015Publication date: November 23, 2017Applicant: Shiseido Company, Ltd.Inventors: Yuji MASUDA, Eiichiro YAGI, Tomohiro KUWAHARA -
Patent number: 9714936Abstract: It is an object of the invention to provide a method for evaluating cosmetics that allows development of cosmetics that can contribute to beautiful healthy skin. The object is achieved by a method of evaluating improvement in skin by an applied cosmetic, using as the index the change in stratum corneum thickness during the process of moistening and drying.Type: GrantFiled: December 20, 2012Date of Patent: July 25, 2017Assignee: Shiseido Company, Ltd.Inventors: Ichiro Iwai, Eiichiro Yagi
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Publication number: 20150362412Abstract: The invention relates to providing a method for more conveniently evaluating stratum corneum condition. A stratum corneum sheet is contacted with a solution of a water-soluble dye, and the staining intensity or fluorescence intensity is measured to allow convenient evaluation of the stratum corneum condition. There is further provided a method for evaluating the ameliorating effect of a cosmetic or cosmetic treatment on the stratum corneum, by implementing the method for evaluating stratum corneum condition using a water-soluble dye according to the invention.Type: ApplicationFiled: January 21, 2014Publication date: December 17, 2015Applicant: Shiseido Company, Ltd.Inventors: Eiichiro YAGI, Ichiro IWAI
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Publication number: 20150093772Abstract: It is an object of the invention to provide a method for evaluating cosmetics that allows development of cosmetics that can contribute to beautiful healthy skin. The object is achieved by a method of evaluating improvement in skin by an applied cosmetic, using as the index the change in stratum corneum thickness during the process of moistening and drying.Type: ApplicationFiled: December 20, 2012Publication date: April 2, 2015Applicant: SHISEIDO COMPANY, LTD.Inventors: Ichiro Iwai, Eiichiro Yagi
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Publication number: 20100075882Abstract: The present invention was made in view of the above-described circumstances, and an object of the invention is to provide an external skin preparation having a rough skin improving effect, excellent in texture in use, especially excellent in smoothness, free of sticky feeling, and excellent in stability. Another object is to provide a skin cleanser excellent especially in usability and a cosmetic removing effect. That is, the external skin preparation of the present invention is characterized by comprising a block-type alkylene oxide derivative represented by the below-described formula (I). [formula 1] Y—[O(EO)a-(AO)b-(EO)c-R]k??(I) (In the formula, Y is the residue given by removing hydroxyl groups from a polyhydric alcohol having 3 to 6 hydroxyl groups, and k is the number of hydroxyl groups of the polyhydric alcohol. EO is an oxyethylene group, AO is an oxyalkylene group having 3 to 6 carbon atoms, and they are attached in a block-type, respectively.Type: ApplicationFiled: September 28, 2007Publication date: March 25, 2010Applicants: Shiseido Company Ltd., NOF CorporationInventors: Takashi Ohmori, Akira Ishikubo, Takashi Teshigawara, Yuki Sugiyama, Eiichiro Yagi, Kei-ichi Maruyama, Sue Taguchi, Yogi Tezuka
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Publication number: 20040101576Abstract: An immunopotentiator for preventing ultraviolet light-induced skin immunosuppression or a drug against ultraviolet light-induced skin immunosuppression which contains glutathione or Scutellaria root extract. Also, an immunopotentiator or a drug against immunosuppression which contains linden extract, clove extract, Geranium herb extract or rosemary extract. They can prevent a reduction of immune functions due to ultraviolet light.Type: ApplicationFiled: April 20, 1999Publication date: May 27, 2004Inventors: EIICHIRO YAGI, MASAKO NAGANUMA, ICHIRO IWAI, MASATO HATAO, KENJI YAMAGUCHI, GENJI WADA
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Publication number: 20030086879Abstract: An immunopotentiator for preventing ultraviolet light-induced skin immunosuppression or a drug against ultraviolet light-induced skin immunosuppression which contains glutathione or Scutellaria root extract. Also, an immunopotentiator or a drug against immunosuppression which contains linden extract, clove extract, Geranium herb extract or rosemary extract. They can prevent a reduction of immune functions due to ultraviolet light.Type: ApplicationFiled: May 7, 2002Publication date: May 8, 2003Applicant: Shiseido Co., Ltd.Inventors: Eiichiro Yagi, Masako Naganuma, Ichiro Iwai, Masato Hatao, Kenji Yamaguchi, Genji Wada
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Patent number: 6169114Abstract: The present invention is an endermic liniment which characteristically contains a thiol compound and zinc oxide. An endermic liniment which can contain a thiol compound in a stable manner can be provided by blending in a thiol compound and zinc oxide.Type: GrantFiled: May 5, 1999Date of Patent: January 2, 2001Assignee: Shiseido Company, Ltd.Inventors: Kenji Yamaguchi, Eiichiro Yagi, Masako Naganuma, Masato Hatao, Ichiro Iwai
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Patent number: 5631002Abstract: An endermic liniment is provided which contains one of more of Piri-Piri extract, Pinon Negro extract, Pinon Blanco extract, or Cola de caballo extract. The endermic liniment exhibits superior hypochromic effects and whitening effects on pigment deposition, chloasma, freckles, liver spots, etc. after sunburn and is superior in terms of safety.Type: GrantFiled: June 29, 1995Date of Patent: May 20, 1997Assignee: Shiseido Co., Ltd.Inventors: Eiichiro Yagi, Hisayuki Komasaki, Yuki Shibata, Masako Naganuma, Minoru Fukuda
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Patent number: 5182103Abstract: A magnesium aluminometasilicate coated composite powder which comprises magnesium aluminometasilicate, or magnesium aluminometasilicate and at least one other powder coated on a surface of a core powder and which is usable in, for example, a skin treatment agent, decodorant, and oral composition.Type: GrantFiled: June 6, 1989Date of Patent: January 26, 1993Assignee: Shiseido Company, Ltd.Inventors: Toshihiko Nakane, Masumi Koishi, Hiroshi Fukui, Yutaka Okunuki, Yoshio Yahata, Shigenori Kumagai, Hiroyuki Yokoyama, Eiichiro Yagi, Minoru Fukuda, Tadao Ohta, Fujihiro Kanda, Kazuhisa Ohno, Toshihide Ebisawa, Tomiyuki Nanba, Susumu Takada, Masato Hatao, Masaru Suetsugu, Toshihiro Tanaka, Osamu Moro
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Patent number: 5122418Abstract: A composite powder wherein an organic or inorganic core powder is substantially completely covered with one or more types of organic, inorganic, or metallic powders having an average particle size one-fifth or less of the average particle size of the above core powder by means of mixing and compression. The composite powder may be manufactured by mixing and compressing the above core powder and coating powder using a ball mill or other mixer charged with a ball shaped mixing medium of an average diameter of 5 mm or less. This composite powder may be used in, for example, skin treatment agent, makeup type cosmetics, sunburn preventing cosmetics, deodorants.Type: GrantFiled: October 4, 1990Date of Patent: June 16, 1992Assignee: Shiseido Company Ltd.Inventors: Toshihiko Nakane, Masumi Koishi, Hiroshi Fukui, Yutaka Okunuki, Yoshio Yahata, Shigenori Kumagai, Hiroyuki Yokoyama, Eiichiro Yagi, Minoru Fukuda, Tadao Ohta, Fujihiro Kanda, Kazuhisa Ohno, Toshihide Ebisawa, Tomiyuki Nanba, Susumu Takada, Masato Hatao, Masaru Suetsugu