Patents by Inventor Johji Yamahara

Johji Yamahara 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).

  • Terpene amino alcohols and medicinal uses thereof
    Patent number: 5428056
    Abstract: Novel terpene amino alcohols having an antiallergic activity or an activity of improving cerebral function are provided. Also provided are medicinal uses of the alcohols.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: June 27, 1995
    Assignee: Kuraray Co., Ltd.
    Inventors: Koichi Kanehira, Katsushi Eziri, Manzo Shiono, Yoshiji Fujita, Johji Yamahara
  • Terpene amino alcohols and medicinal uses thereof
    Patent number: 5284850
    Abstract: Novel terpene amino alcohols having an antiallergic activity or an activity of improving cerebral function are provided. Also provided are medicinal uses of the alcohols.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: February 8, 1994
    Assignee: Kuraray Co., Ltd.
    Inventors: Koichi Kanehira, Katsushi Eziri, Manzo Shiono, Yoshiji Fujita, Johji Yamahara
  • Terpene amino alcohols and medicinal uses thereof
    Patent number: 5143921
    Abstract: Novel terpene amino alcohols having an antiallergic activity or an activity of improving cerebral function are provided. Also provided are medicinal uses of the alcohols.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: September 1, 1992
    Assignee: Kuraray Co., Ltd.
    Inventors: Koichi Kanehira, Katsushi Eziri, Manzo Shiono, Yoshiji Fujita, Johji Yamahara
  • Conjugated .gamma.-hydroxybutenolide compounds and antiulcer agents containing the same as an effective ingredient
    Patent number: 5084464
    Abstract: The present invention provides conjugated .gamma.-hydroxybutenolide compounds represented by the general formula: ##STR1## wherein R represents, when n is 1, furyl groups, thienyl groups or naphthyl groups, unsubstituted or substituted with alkyl group or alkoxy group; phenyl groups substituted with dialkylamino group, acyl group or pyridinyl group; or ##STR2## when n is 2 or 3, phenyl groups unsubstituted or substituted with alkyl group or alkoxy group; and antiulcer agents comprising an aforementioned conjugated .gamma.-hydroxybutenolide compound as an active ingredient.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: January 28, 1992
    Assignee: Kuraray Company Ltd.
    Inventors: Yoshin Tamai, Masahiro Torihara, Yoichi Kido, Johji Yamahara
  • Method for treating ulcer
    Patent number: 4950818
    Abstract: A novel and useful method for treating and/or preventing ulcer in human beings is provided which comprises administering an effective amount of a pharmaceutical composition comprising at least one of the conjugated .gamma.-oxybutenolide compounds represented by the general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are the same or different and represent hydrogen atoms, alkyl groups, hydroxyl groups, alkoxy groups, nitro groups, cyano groups or halogen atoms; and optionally at least one pharmaceutically acceptable carrier.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: August 21, 1990
    Assignee: Kuraray Company, Ltd.
    Inventors: Yoshin Tamai, Masahiro Torihara, Yoichi Kido, Johji Yamahara, Masayoshi Ito
  • Terpene amino alcohols and medicinal uses thereof
    Patent number: 4946857
    Abstract: Novel terpene amino alcohols having an antiallergic activity or an activity of improving cerebral function are provided. Also provided are medicinal uses of the alcohols.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: August 7, 1990
    Assignee: Kuraray Co., Ltd.
    Inventors: Koichi Kanehira, Katsushi Eziri, Manzo Shiono, Yoshiji Fujita, Johji Yamahara
  • 3,4-dihydrobenzopyran derivatives and medicinal uses thereof
    Patent number: 4728650
    Abstract: There are provided novel 3,4-dihydrobenzopyran derivatives having anti-peptic ulcer, antitussive and/or expectorant activity. Also provided are medicinal uses of said 3,4-dihydrobenzopyran derivatives.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: March 1, 1988
    Assignee: Kuraray Co., Ltd.
    Inventors: Katsushi Eziri, Koichi Kanehira, Manzo Shiono, Yoshiji Fujita, Johji Yamahara
  • 3,4-dihydrobenzopyran compounds and pharmaceutical composition containing the same
    Patent number: 4681890
    Abstract: Novel 3,4-dihydrobenzopyran compounds of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each hydrogen or nicotinoyl group and at least one of them is nicotinoyl group, m is an integer of 0, 1 or 2, and n is an integer of 0 or 1, which is useful for prophylaxis and treatment of hyperlipemia and the compounds wherein R.sup.1 and R.sup.3 being nicotinoyl group and n is 0 being also effective for prophylaxis and treatment of hepatic diseases, and pharmaceutical composition containing said compounds as an active ingredient.
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: July 21, 1987
    Assignee: Kuraray Co., Ltd.
    Inventors: Koichi Kanehira, Manzo Shiono, Yoshiji Fujita, Takashi Nishida, Johji Yamahara