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).

  • Publication number: 20190212136
    Abstract: 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: Application
    Filed: March 13, 2019
    Publication date: July 11, 2019
    Applicant: Shiseido Company, Ltd.
    Inventors: Yuji MASUDA, Eiichiro YAGI, Tomohiro KUWAHARA
  • Patent number: 10281267
    Abstract: 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: Grant
    Filed: November 10, 2015
    Date of Patent: May 7, 2019
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Yuji Masuda, Eiichiro Yagi, Tomohiro Kuwahara
  • Patent number: 9970848
    Abstract: 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: Grant
    Filed: January 21, 2014
    Date of Patent: May 15, 2018
    Assignee: Shiseido Company, Ltd.
    Inventors: Eiichiro Yagi, Ichiro Iwai
  • Publication number: 20170336199
    Abstract: 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: Application
    Filed: November 10, 2015
    Publication date: November 23, 2017
    Applicant: Shiseido Company, Ltd.
    Inventors: Yuji MASUDA, Eiichiro YAGI, Tomohiro KUWAHARA
  • Patent number: 9714936
    Abstract: 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: Grant
    Filed: December 20, 2012
    Date of Patent: July 25, 2017
    Assignee: Shiseido Company, Ltd.
    Inventors: Ichiro Iwai, Eiichiro Yagi
  • Publication number: 20150362412
    Abstract: 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: Application
    Filed: January 21, 2014
    Publication date: December 17, 2015
    Applicant: Shiseido Company, Ltd.
    Inventors: Eiichiro YAGI, Ichiro IWAI
  • Publication number: 20150093772
    Abstract: 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: Application
    Filed: December 20, 2012
    Publication date: April 2, 2015
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Ichiro Iwai, Eiichiro Yagi
  • Publication number: 20100075882
    Abstract: 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: Application
    Filed: September 28, 2007
    Publication date: March 25, 2010
    Applicants: Shiseido Company Ltd., NOF Corporation
    Inventors: Takashi Ohmori, Akira Ishikubo, Takashi Teshigawara, Yuki Sugiyama, Eiichiro Yagi, Kei-ichi Maruyama, Sue Taguchi, Yogi Tezuka
  • Publication number: 20040101576
    Abstract: 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: Application
    Filed: April 20, 1999
    Publication date: May 27, 2004
    Inventors: EIICHIRO YAGI, MASAKO NAGANUMA, ICHIRO IWAI, MASATO HATAO, KENJI YAMAGUCHI, GENJI WADA
  • Publication number: 20030086879
    Abstract: 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: Application
    Filed: May 7, 2002
    Publication date: May 8, 2003
    Applicant: Shiseido Co., Ltd.
    Inventors: Eiichiro Yagi, Masako Naganuma, Ichiro Iwai, Masato Hatao, Kenji Yamaguchi, Genji Wada
  • Patent number: 6169114
    Abstract: 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: Grant
    Filed: May 5, 1999
    Date of Patent: January 2, 2001
    Assignee: Shiseido Company, Ltd.
    Inventors: Kenji Yamaguchi, Eiichiro Yagi, Masako Naganuma, Masato Hatao, Ichiro Iwai
  • Patent number: 5631002
    Abstract: 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: Grant
    Filed: June 29, 1995
    Date of Patent: May 20, 1997
    Assignee: Shiseido Co., Ltd.
    Inventors: Eiichiro Yagi, Hisayuki Komasaki, Yuki Shibata, Masako Naganuma, Minoru Fukuda
  • Patent number: 5182103
    Abstract: 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: Grant
    Filed: June 6, 1989
    Date of Patent: January 26, 1993
    Assignee: 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
  • Patent number: 5122418
    Abstract: 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: Grant
    Filed: October 4, 1990
    Date of Patent: June 16, 1992
    Assignee: 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