Patents by Inventor Yoshihiro Takayama

Yoshihiro Takayama 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).

  • Sulfamoyltriazole derivatives of fungicidal composition containing same as effective component thereof
    Patent number: 5527818
    Abstract: The present invention relates to a sulfamoyl triazole derivative and a fungicide containing same as an effective component, the sulfamoyl triazole derivative being expressed by general formula (I): ##STR1## in which R.sup.1 and R.sup.2 are the same or different lower alkyl groups or an alkylene chain formed by integrating R.sup.1 and R.sup.2 and having 3 to 6 carbon atoms which may be substituted by a lower alkyl group; p is an integer 0 or 1; and A is a substituted aryl group.The fungicide does not damage field and garden plants and it is effective for preventing and curing various disease injury at very small dosages.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: June 18, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Atsushi Goh, Yoshihiro Usui, Yoshimi Tsutsumi, Yoshie Kirio, Yoshihiro Takayama, Seiichiro Yamada, Masako Yamanaka
  • Process for producing L-threonine
    Patent number: 4427774
    Abstract: L-threonine is produced by aerobically culturing a bacterium belonging to the genus Acinetobacter, which utilizes ethanol and has an ability to produce and accumulate L-threonine, in a culture medium in which ethanol is the main carbon source to produce and accumulate L-threonine in a culture liquor and recovering L-threonine from the culture liquor. The bacterium is preferably a mutant of Acinetobacter calcoaceticus YK-1011 (Ferm-P No. 5910).
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: January 24, 1984
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hideaki Yukawa, Terukazu Nara, Yoshihiro Takayama
  • Novel polysaccharide and hypocholesterol composition containing the same
    Patent number: 4330533
    Abstract: New polysaccharide named M-30-C produced by cultivation of new strain Pseudomonas polysaccharogenes M-30 and having utility as hypocholesterol agents.
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: May 18, 1982
    Assignees: Mitsubishi Petrochemical Co., Ltd., Mitsubishi Yuka Pharmaceutical Co., Ltd.
    Inventors: Yoshihiro Takayama, Fujio Endo, Tsuneo Nozawa, Yoshiro Masuda, Motokuni Mori, Toshiji Kanayama
  • Process for production of L-aspartic acid
    Patent number: 4326029
    Abstract: A process for producing L-aspartic acid economically and efficiently from fumaric acid or a salt thereof and ammonia or an ammonium salt using a cultured product obtained by aerobically culturing an microorganism belonging to the Genus Brevibacterium and having resistance to .alpha.-amino-n-butyric acid.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: April 20, 1982
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hideaki Yukawa, Terukazu Nara, Yoshihiro Takayama
  • Production of L-amino acids
    Patent number: 4276380
    Abstract: A process for producing L-valine or L-lysine which comprises aerobically culturing a bacterium belonging to the genus Acinetobacter, which utilizes ethanol and has an ability to produce and accumulate L-valine or L-lysine, in a culture medium in which ethanol is the main carbon source to produce and accumulate L-valine and/or L-lysine and collecting.
    Type: Grant
    Filed: February 13, 1980
    Date of Patent: June 30, 1981
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hideaki Yukawa, Kazuoki Osumi, Terukazu Nara, Yoshihiro Takayama
  • Preparation of L-trytophan by fermentation
    Patent number: 4271267
    Abstract: A process for preparing L-tryptophan by fermentation which comprises cultivating on a medium containing ethanol as the main carbon source a microorganism of the genus Serratia that utilizes ethanol and has the ability to produce L-tryptophan, and recovering the accumulated L-tryptophan from the culture.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: June 2, 1981
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hideaki Yukawa, Kazuoki Osumi, Terukatsu Nara, Yoshihiro Takayama