Patents by Inventor Yoichiro Takekoshi

Yoichiro Takekoshi 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).

  • Cosmetic composition
    Patent number: 6692754
    Abstract: The present invention relates to skin aging inhibitors and/or skin quality-improving agents comprising hydroxyproline, its N-acyl derivatives or salts thereof, and cosmetic compositions for inhibiting skin aging and/or improving skin quality comprising said skin aging inhibitors and/or skin quality-improving agents.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: February 17, 2004
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yutaka Makimoto, Asako Kobayashi, Toshihiro Sakakibara, Chiemi Takaboshi, Ayako Kamimura, Tomoya Takahashi, Minako Tajima, Yoichiro Takekoshi
  • Preventives or remedies for atopic dermatitis
    Publication number: 20030185864
    Abstract: The present invention provides skin epidermal ceramide synthesis accelerators, agents for improving skin epidermal barrier function and agents for preventing or improving atopic dermatitis, which each comprises, as an active ingredient, hydroxyproline or an N-acyl derivative of hydroxyproline, or a salt thereof, and cosmetics for improving skin barrier function or improving atopic dermatitis, which comprises the ceramide synthesis accelerator.
    Type: Application
    Filed: January 17, 2003
    Publication date: October 2, 2003
    Inventors: Asako Kobayashi, Tomoya Takahashi, Yoichiro Takekoshi
  • Cosmetic composition
    Patent number: 6517846
    Abstract: A cosmetic composition having effects suitable for sensitive skin, dry skin, roughening skin or skin with atopic dermatitis is provided. The cosmetic composition includes one or more compounds selected from N-long chain acylamino acids represented by formula (I): wherein n represents 1 or 2, and R represents a saturated or unsaturated hydrocarbon group of from 5 to 23 carbon atoms; and salts thereof.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: February 11, 2003
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventor: Yoichiro Takekoshi
  • Cosmetics
    Patent number: 6497889
    Abstract: The present invention provides cosmetics comprising (1) hydroxyproline, an N-acylated hydroxyproline derivative or a salt thereof and (2) at least one component selected from the group consisting of water-soluble vitamins, oil-soluble vitamins, high molecular peptides, high molecular polysaccharides, sphingolipids and seaweed extracts.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: December 24, 2002
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yoichiro Takekoshi, Tomoya Takahashi, Toshio Oonuma
  • Cosmetic composition
    Publication number: 20020122784
    Abstract: A cosmetic composition having effects suitable for sensitive skin, dry skin, roughening skin or skin with atopic dermatitis is provided.
    Type: Application
    Filed: June 15, 2001
    Publication date: September 5, 2002
    Inventor: Yoichiro Takekoshi
  • Cosmetics
    Publication number: 20020009472
    Abstract: The present invention provides cosmetics comprising (1) hydroxyproline, an N-acylated hydroxyproline derivative or a salt thereof and (2) at least one component selected from the group consisting of water-soluble vitamins, oil-soluble vitamins, high molecular peptides, high molecular polysaccharides, sphingolipids and seaweed extracts.
    Type: Application
    Filed: June 6, 2001
    Publication date: January 24, 2002
    Inventors: Yoichiro Takekoshi, Tomoya Takahashi, Toshio Oouma
  • Cosmetic composition
    Patent number: 6190679
    Abstract: A composition for cosmetics use which comprises a lysophospholipid mixture, wherein 30 mol % or more of fatty acids bonded to said lysophospholipid mixture are monoenoic fatty acids; and a cosmetic composition which comprises a lysophospholipid mixture and a cosmetically acceptable carrier, wherein 30 mol % or more of fatty acids bonded to said lysophospholipid mixture are monoenoic fatty acids. The cosmetic composition having such a lysophospholipid mixture has high storage stability and is excellent in feeling upon use.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: February 20, 2001
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yoichiro Takekoshi, Ichiro Matsuura
  • Cosmetics based on naturally derived melanin-coated pigments
    Patent number: 5380359
    Abstract: A melanin-coated pigment obtained by coating a carrier with a readily alkali-soluble natural melanin, and a cosmetic containing the pigment are provided. The melanin-coated pigment is highly safe and has high coloring and high saturation tone, and a cosmetic which contains it is also expected to have ultraviolet-ray-absorbing and anti-oxidizing effects.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: January 10, 1995
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shinkichi Honda, Yoichiro Takekoshi, Yoichiro Arai