Patents by Inventor Hirotaka Fukumitsu

Hirotaka Fukumitsu 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).

  • Permanent waving compositions
    Patent number: 4272517
    Abstract: A permanent waving composition which comprises N-carbamoylcysteine and which acts mildly on the human hair and skin and has outstanding stability during application and storage. When further incorporating cysteine, the composition posseses the advantages afforded by cysteine without involving the drawbacks attendant on the use of cysteine.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: June 9, 1981
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Koji Yoneda, Takehisa Ohashi, Masami Onishi, Hirotaka Fukumitsu
  • Process for preparing 5-(4-hydroxyphenyl)hydantoin
    Patent number: 4230869
    Abstract: A process for preparing 5-(4-hydroxyphenyl)hydantoin by reacting glyoxylic acid, urea and phenol in an aqueous medium in the presence of an acid at an elevated temperature. The hydantoin of high purity can be readily prepared in good yields.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: October 28, 1980
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Koji Yoneda, Takehisa Ohashi, Tomoaki Nagamachi, Hirotaka Fukumitsu, Satomi Takahashi
  • Process for preparing L-methionine
    Patent number: 4148688
    Abstract: A process for preparing L-methionine by subjecting DL- or L-N-carbamoylmethionine to the action of a cultured broth, cells or treated cells of microorganisms having a capability in asymmetrically hydrolyzing the carbamoyl group of N-carbamoylmethionine. The process is suited for large-scale economical manufacturing of L-methionine.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: April 10, 1979
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hideaki Yamada, Satomi Takahashi, Kazushige Sumino, Hirotaka Fukumitsu, Koji Yoneda