Patents by Inventor Koutarou Muroyama

Koutarou Muroyama 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 producing proteinaceous microparticles
    Patent number: 5750183
    Abstract: A process for producing proteinaceous microparticles by lowering a pH of a liquid mixture which contains a whey protein together with a metal element by using an acid, removing insoluble materials, raising the pH, and mixing the liquid mixture with an hydrophilic organic solvent. The microparticles are useful as a fat substitute containing no fat.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: May 12, 1998
    Assignees: Takeda Food Products, Ltd., Miki Trading Co., Ltd.
    Inventors: Norio Yamamoto, Yoshihiro Yamamoto, Tetsuo Nunome, Koutarou Muroyama, Hiroaki Kusaka
  • Alpha-D-glycosyl kasugamycin, its preparation, and antibacterial agent containing the same
    Patent number: 5317095
    Abstract: An .alpha.-D-hlycosyl kasugamycin having the formula (III): ##STR1## wherein n is an integer of not less than 1. According to the present invention, the novel substance which is highly safe and easily hydrolyzed with .alpha.-glucosidase to exhibit physiological activities inherent to kasugamycin is obtained.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: May 31, 1994
    Assignee: Hayashibara Biochemical Laboratories, Inc.
    Inventors: Yukio Suzuki, Koutarou Muroyama, Kei Suzuki