Patents by Inventor Hua Kang

Hua Kang 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).

  • Medicinal compositions
    Patent number: 6608032
    Abstract: Medicinal compositions for treating or preventing diabetes, rheumatoid, diseases wherein inflammation should be inhibited, diseases wherein &agr;-glycosidase should be inhibited, diseases wherein the synthesis of prostaglandin should be inhibited, diseases wherein endotoxin shock should be inhibited, diseases wherein the production of interleukin should be inhibited, diseases wherein the production of heme oxygenase should be induced, and diseases wherein the production of tumor necrosis factor or carcinogenesis should be inhibited, which contain as the active ingredient at least one compound selected from the group consisting of 3,6-anhydrogalactopyranose represented by formula (I), its aldehyde, its hydrate and 2-O-methylated derivatives and 2-O-sulfated derivatives thereof.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: August 19, 2003
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Tatsuji Enoki, Hiroaki Sagawa, Jun Tomono, Takanari Tominaga, Eiji Nishiyama, Hua-Kang Wu, Ikunoshin Kato
  • Product of heat treatment of uronic acid, food, drink, or drug including the product
    Patent number: 6482806
    Abstract: A product obtained by heating at least one substance selected from the following (a), (b) and (c). (a) uronic acid or uronic acid derivative; (b) a saccharide compound containing uronic acid or a saccharide compound containing uronic acid derivative; and (c) a substance containing a saccharide compound containing uronic acid or a substance containing a saccharide compound containing uronic acid derivative; and food, beverage or a pharmaceutical agent which is characterized in containing the above-mentioned heat-treated product.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: November 19, 2002
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Nobuto Koyama, Hiroaki Sagawa, Eiji Kobayashi, Tatsuji Enoki, Hua-Kang Wu, Eiji Nishiyama, Suzu Deguchi, Katsushige Ikai, Hiromu Ohnogi, Motoko Ueda, Akihiro Kondo, Ikunoshin Kato
  • Antirheumatic agents
    Patent number: 6284801
    Abstract: An antirheumatic agent which is characterized in containing at least one compound selected from a group consisting of 4,5-dihydroxy-2-cyclopenten-l-one represented by the following formula [I] and an optically active substance and a salt thereof as an effective component.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: September 4, 2001
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Nobuto Koyama, Hua-Kang Wu, Takanari Tominaga, Eiji Nishiyama, Michio Hagiya, Tatsuji Enoki, Hiromu Ohnogi, Ikunoshin Kato
  • Diabetes remedies
    Patent number: 6194467
    Abstract: A therapeutic or preventive agent for diabetes mellitus which is characterized in containing at least one compound selected from a group consisting of 4,5-dihydroxy-2-cyclopenten-1-one represented by the following formula [I] and an optically active substance and a salt thereof as an effective component.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: February 27, 2001
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Hua-Kang Wu, Nobuto Koyama, Eiji Nishiyama, Takanari Tominaga, Michio Hagiya, Ikunoshin Kato
  • Compounds
    Patent number: 6177592
    Abstract: A compound represented by the following formula [I] or an optically active substance or a salt thereof. (In the formula, a bond shown by a dotted line in the five-membered ring means that said five-membered ring may be any of a cyclopentene ring having a double bond and a cyclopentane ring where said bond is saturated and, in the case of a cyclopentene ring, X is OH, Y is ═O and Z is H while, in the case of a cyclopentane ring, X is ═O, Y is OH and Z is OH. R is a residue after removal of an SH group from the SH-containing compound.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: January 23, 2001
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Nobuto Koyama, Tatsuji Enoki, Katsushige Ikai, Hua-Kang Wu, Hiromu Ohnogi, Takanari Tominaga, Eiji Nishiyama, Michio Hagiya, Hiroaki Sagawa, Hideto Chono, Ikunoshin Kato
  • Cyclopentenones, process for preparing the same, and the use thereof
    Patent number: 6087401
    Abstract: There is disclosed a method of manufacturing 4,5-dihydroxy-2-cyclopenten-1-one represented by the following formula [1] which is characterized in that at least one substance selected from the following (a), (b) and (c) is heated.(a): uronic acid or uronic acid derivative(s);(b): a saccharide compound which contains uronic acid and/or uronic acid derivative(s); and(c): a substance containing a saccharide compound which contains uronic acid and/or uronic acid derivative(s).
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: July 11, 2000
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Nobuto Koyama, Hiroaki Sagawa, Eiji Kobayashi, Tatsuji Enoki, Hua-Kang Wu, Eiji Nishiyama, Katsushige Ikai, Ikunoshin Kato