Patents by Inventor Hisayuki Komasaki

Hisayuki Komasaki 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).

  • Liniment for melanin inhibitors
    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
  • External preparation for skin
    Patent number: 5580549
    Abstract: An external preparing for skin comprising one or more than two types of 2-hydroxy benzoic acid derivative and/or salt thereof represented by the following formula: ##STR1## wherein R is an alkoxy group or alkyl group in the formula. The external preparation for the skin according to the present invention has a suppression effect on melanine generation by inhibition of tyrosinase activity. Accordingly, an excellent bleaching effect based upon the suppression of chromatosis and a high degree of safety can be obtained.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: December 3, 1996
    Assignee: Shiseido Co., Ltd.
    Inventors: Minoru Fukuda, Masako Naganuma, Yuki Yamase, Yoshihiro Yokokawa, Hisayuki Komasaki
  • Fermentation method for producing hyaluronic acid
    Patent number: 4801539
    Abstract: Streptolysin-free hyaluronic acid is produced by cultivating a microorganism belonging to a genus Steptococcus which is anhemolytic and is capable of producing hyaluronic acid (e.g., Streptococcus zooepidemicus FERM BP-784) in a culture medium.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: January 31, 1989
    Assignee: Shiseido Company Ltd.
    Inventors: Hidemichi Akasaka, Hisayuki Komasaki, Takayuki Arai