Patents by Inventor Isamu Motokawa

Isamu Motokawa 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).

  • Cephalosporin derivative, process for producing the same and pharmaceutical composition containing the same
    Patent number: 4734409
    Abstract: Disclosed herein are a cephalosporin derivative represented by the formula (I): ##STR1## wherein R.sup.1 represents a halogenoalkyl group, a salt and ester thereof, a process for producing the same, and a pharmaceutical composition and an antibacterial agent comprising the same.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: March 29, 1988
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeaki Muto, Chikao Yoshikumi, Takao Furusho, Isamu Motokawa, Yoko Onishi, Akihiko Kanno, Takayoshi Fujii, Takao Ando
  • Pivaloyloxymethyl 7-.beta.-[2-(2-amino-4-thiazolyl)-2-methoxyiminoacetamido]-3-(2-amino-1, 3-thiadiazolyl-5-thiomethyl)-3-cepheme-4-carboxylate and pharmaceutical composition containing the same
    Patent number: 4681877
    Abstract: Disclosed herein are 7-beta-[2-(2-amino-4-thiazolyl)-2-methoxyiminoacetamido]-3-(2-amino-1,3,4- thiadiazolyl-5-thiomethyl)-3-cepheme-4-carboxylic acid, salts thereof and pivaloyloxymethyl ester thereof, and a pharmaceutical composition containing the same as an active ingredient.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: July 21, 1987
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeaki Muto, Takao Ando, Takayoshi Fujii, Akihiko Kanno, Yoko Onishi, Isamu Motokawa, Takao Furusho, Chikao Yoshikumi
  • Cyclodextrin and method for promoting the proliferation of intestinal bifidobacteria
    Patent number: 4451457
    Abstract: Disclosed is an agent comprising cyclodextrin as the active ingredient and a method for using such agent to promote the proliferation of intestinal bifidobacteria in animals.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: May 29, 1984
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Chikao Yoshikumi, Katsuo Sakurai, Yoshio Omura, Mayumi Nohara, Takao Ando, Isamu Motokawa