Patents by Inventor Katsunobu Matsushita

Katsunobu Matsushita 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).

  • Method of producing carbon source for fermentation
    Patent number: 4066502
    Abstract: A hydrolyzate of molasses, containing both glucose and fructose, is mixed with calcium hydroxide, and a fructose addition precipitate is recovered. The residual liquor is neutralized, calcium ions are removed, and then the liquor is used as a carbon source for glutamic acid or lysine fermentation.The present method may supply very inexpensive fructose to the market.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: January 3, 1978
    Assignee: Ajinomoto Co., Inc.
    Inventors: Soichiro Asai, Tsutomu Matsuishi, Katsunobu Matsushita, Shigeho Ikeda, Kaetsu Kobayashi, Hiromasa Maruyama
  • Solid, water-insoluble polypeptides having ionizable side chains
    Patent number: 3948863
    Abstract: Solid bodies of polypeptides having repeating units of aspartic, glutamic, and aminoadipic esters are reacted with hydrazine or an amine having at least two NH.sub.2 groups until the ester moieties of the side chains are partly converted to the hydrazines or amides, and the side chains are partly crosslinked hydrazides other units by reaction with the hydrazine or diamine so as to make the polypeptide insoluble and infusible. The remaining ester moieties are saponified, and the resulting hydrophilic, but water-insoluble solid acts as an ampholyte in contact with water or other polar solvents. It may be used for capturing heavy metal ions from their aqueous solutions.
    Type: Grant
    Filed: May 30, 1974
    Date of Patent: April 6, 1976
    Assignee: Ajinomoto Co., Inc.
    Inventors: Akira Akamatsu, Katsunobu Matsushita, Sadao Koizumi