Patents by Inventor Yaichi Fukushima

Yaichi Fukushima 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).

  • Multiply transformed koji mold and a method of manufacturing a flavor enhancer using the same
    Patent number: 6706492
    Abstract: The present invention provides a koji mold having increased protease activity and peptidase activity relative to a parent strain, a method of breeding the koji mold, and a method of manufacturing a flavor enhancer using the koji mold. More specifically, the present invention provides (1) a koji mold having increased protease activity and peptidase activity relative to a parent strain obtained by transformation using a protease gene and a peptidase gene, (2) a method of breeding the above koji mold which comprises transforming a parent strain of koji mold using a protease gene and a peptidase gene, and then selecting a transformant having higher protease activity and peptidase activity relative to a parent strain, and (3) a method of manufacturing a flavor enhancer which comprises allowing a culture product of the above koji mold to act on a protein.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: March 16, 2004
    Assignee: Kikkoman Corporation
    Inventors: Genryou Umitsuki, Hiroe Sato, Misao Sugishita, Yaichi Fukushima, Yasuji Koyama
  • Multiply transformed koji mold and a method of manufacturing a flavor enhancer using the same
    Publication number: 20010049118
    Abstract: The present invention provides a koji mold having increased protease activity and peptidase activity relative to a parent strain, a method of breeding the koji mold, and a method of manufacturing a flavor enhancer using the koji mold.
    Type: Application
    Filed: March 9, 2001
    Publication date: December 6, 2001
    Applicant: Kikkoman Corporation
    Inventors: Genryou Umitsuki, Hiroe Sato, Misao Sugishita, Yaichi Fukushima, Yasuji Koyama
  • Process for producing seasoning
    Patent number: 5869115
    Abstract: A process for producing a seasoning having high nitrogen concentration by hydrolyzing a proteinaceous material with enzyme, characterized in that common salt is added to the decomposed Moromi or the Moromi temperature is lowered, then the Moromi is allowed to stand and press filtered by a conventional method.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: February 9, 1999
    Assignee: Kikkoman Corporation
    Inventors: Yaichi Fukushima, Makoto Okayasu, Misao Sugishita
  • Process for producing protease by cultivating a protease-producing mold in a liquid medium
    Patent number: 4879235
    Abstract: A process for producing protease by cultivating a protease-producing mold in a liquid medium, which is characterized by continuously adding a liquid medium containing a protein material to the culture medium after the substantial termination of proliferation of the mold cells.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: November 7, 1989
    Assignee: The Japanese Research and Development Association for Bioreactor System
    Inventors: Hiroshi Motai, Yaichi Fukushima, Tetsuro Fukase, Harumichi Itoh
  • Microorganism or enzyme immobilization with a mixture of alginate and silica sol
    Patent number: 4797358
    Abstract: A microorganism or enzyme is mixed with an alginate and a silica sol in the presence of water to obtain a liquid mixture having a pH of 3 to 10 and containing an alginate concentration of 0.5 to 3.5% (w/v) and a silica concentration originating from the silica sol of 0.5 to 35% (w/v). The mixture is contacted with a gelling agent in the form of an aqueous solution to obtain a gel containing the microorganism or enzyme.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: January 10, 1989
    Assignees: Kikkoman Corporation, Fuji-Davison Chemical, Ltd.
    Inventors: Hiroshi Motai, Yaichi Fukushima, Katsumichi Osaki, Katutoshi Okamura, Kazutaka Imai
  • Process for producing seasoning
    Patent number: 4684527
    Abstract: A process for producing a seasoning is disclosed wherein a hydrolyzate of soy sauce koji prepared from soy sauce raw materials, in a liquid state at a pH of 2.5 to 8.0, is contacted with an immobilized peptidase and/or immobilized glutaminase in the presence of sodium chloride to react therewith.
    Type: Grant
    Filed: April 1, 1986
    Date of Patent: August 4, 1987
    Assignee: Kikkoman Corporation
    Inventors: Hiroshi Motai, Yaichi Fukushima, Takashi Ishiyama