Patents by Inventor Tomohide Ida

Tomohide Ida 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).

  • Benzo[b]thiophene derivatives and process for preparing the same
    Patent number: 6884896
    Abstract: The present invention is 3,4-disubstituted-benzo[b]thiophene derivatives represented by general formula (I) and processes for preparing compounds represented by general formula (V) from compounds represented by general formula (IV), preparing a mixture of compounds represented by the following formula (II) and the following formula (III) and preparing the benzo[b]thiophene derivatives represented by the above formula (I): wherein, R1 and R2 represent each a halogen atom, a trihalomethyl group, a C1-4 alkyl group or a C1-4 alkoxy group; X represents a hydroxy group or a halogen atom; R3 and R4 represent each a hydrogen or a halogen atom, a trihalomethyl group, a C1-4 alkyl group or a C1-4 alkoxy group; and R5 represents a C1-3 alkyl group or a trifluoromethyl group.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 26, 2005
    Assignee: Teijin Limited
    Inventors: Hiroshi Saitoh, Naoki Tsuchiya, Tsuyoshi Mizuno, Tomohide Ida, Yoshiyuki Sawai
  • 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
  • Benzo(b)thiophene derivatives and process for producing the same
    Publication number: 20030176490
    Abstract: The present invention is 3,4-disubstituted-benzo[b]thiophene derivatives represented by general formula (I) and processes for preparing compounds represented by general formula (V) from compounds represented by general formula (IV), preparing a mixture of compounds represented by the following formula (II) and the following formula (III) and preparing the benzo[b]thiophene derivatives represented by the above formula (I).
    Type: Application
    Filed: October 22, 2002
    Publication date: September 18, 2003
    Inventors: Hiroshi Saitoh, Naoki Tsuchiya, Tsuyoshi Mizuno, Tomohide Ida, Yoshiyuki Sawai
  • 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