Patents by Inventor Yoshimitsu Naniwa

Yoshimitsu Naniwa 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).

  • Glutathione derivatives and their dosage forms
    Publication number: 20040018985
    Abstract: A glutathione derivative having a dramatically enhanced hematopoiesis promoting effect in the living body, said derivative being represented by the formula (I): 1
    Type: Application
    Filed: July 21, 2003
    Publication date: January 29, 2004
    Applicant: TEIJIN LIMITED
    Inventors: Kiyoyuki Sakon, Yoshimitsu Naniwa, Mitsuru Kobayashi, Daishiro Miura, Hiroshi Imai, Atsushi Imaizumi
  • Benzofurylpyrone derivatives
    Publication number: 20030186976
    Abstract: There is provided benzofuryl-&agr;-pyrone derivative represented by the following structural formula (I): 1
    Type: Application
    Filed: May 12, 2003
    Publication date: October 2, 2003
    Applicant: TEIJIN LIMITED, MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Yoshimitsu Naniwa, Hiroshi Imai, Tomohide Ida, Emiko Muratani, Kazuo Kitai, Yoshinori Sugimoto, Tomomi Kosugi, Akiko Takeuchi, Kunihito Watanabe, Takami Tomiyama, Tomio Takeuchi, Masa Hamada
  • Glutathione derivatives and their dosage forms
    Patent number: 6627732
    Abstract: The present invention provides a glutathione derivative having a dramatically enhanced hematopoiesis promoting effect in the living body represented by the formula (I): where A represents H or a C1-C20 acyl group; R1 represents a C1-C26 alkyl group or a C3-C26 alkenyl group; and R2 represents H, a C1-C26 alkyl group or a C3-C26 alkyl group, with the proviso that compounds are excluded in which R1 is a C1-C10 alkyl group or a C3-C10 alkenyl group, and simultaneously R2 is H, a C1-C10 alkyl group or a C3-C10 alkenyl group. The present invention also provides a salt of the glutathione derivative, or a colloidal composition that enables the safe and effective development of the effects of the glutathione derivative in the living body.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: September 30, 2003
    Assignee: Teijin Limited
    Inventors: Kiyoyuki Sakon, Yoshimitsu Naniwa, Mitsuru Kobayashi, Daishiro Miura, Hiroshi Imai, Atsushi Imaizumi
  • Benzofurylpyrone derivatives
    Patent number: 6589984
    Abstract: There is provided benzofuryl-&agr;-pyrone derivative represented by the following structural formula (I): wherein R1 represents a hydrogen atom or an alkyl group of 1 to 5 carbons; R2 represents hydrogen, —CO—R5 or —SO2R6; R3 represents hydrogen, an alkyl group of 1 to 5 carbons, etc.; and R4 is a substituent attached to the 4-carbon, 5-carbon, 6-carbon or 7 carbon of the benzofuran ring; and their salts. The compounds are useful as therapeutic agent for hypertriglyceridemia, lipid metabolism enhancers, or prophylactic and/or therapeutic agents for arteriosclerosis.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: July 8, 2003
    Assignees: Teijin Limited, Microbial Chemistry Research Foundation
    Inventors: Yoshimitsu Naniwa, Hiroshi Imai, Tomohide Ida, Emiko Muratani, Kazuo Kitai, Yoshinori Sugimoto, Tomomi Kosugi, Akiko Takeuchi, Kunihito Watanabe, Takami Tomiyama, Tomio Takeuchi, Masa Hamada