Patents by Inventor Izumi Masunaga

Izumi Masunaga 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).

  • Process for manufacturing alcohol by fermentation
    Patent number: 4472501
    Abstract: Ethanol is produced by culturing the microorganism Kluyveromyces cellobiovorus or Kloeckera apiculata in a medium containing, as a carbon source, an assimilable source of xylose, cellobiose or both. The carbon source may be provided in the form of hydrolysates of cellulose containing substances such as cotton, wood, straw or paper which are obtained by acid hydrolysis or enzymatic action. At the completion of culturing, ethanol is removed from the culture in a conventional manner.
    Type: Grant
    Filed: August 10, 1982
    Date of Patent: September 18, 1984
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Seigo Takasawa, Yasushi Morikawa, Kenichiro Takayama, Izumi Masunaga
  • Processes for producing thermophilic aspartase
    Patent number: 4391910
    Abstract: Thermophilic aspartase is produced by culturing a microorganism belonging to the genus Bacillus. The enzyme is useful as a catalyst in the production of L-aspartic acid from ammonium fumarate or a mixture of fumaric acid and ammonia.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: July 5, 1983
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kazuo Kimura, Kenichiro Takayama, Yutaka Ado, Tamotsu Kawamoto, Izumi Masunaga