Patents by Inventor Kazuhiro Hoshi

Kazuhiro Hoshi 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).

  • Benzene fused heterocyclic derivatives having thromboxane A2 receptor antagonistic activity and prostaglandin I2 Agonistic activity and application thereof
    Patent number: 6407096
    Abstract: Benzene fused derivatives represented by the following formula: having strong TXA2 receptor antagonistic action and PGI2 receptor agonistic action, and effective for treating or preventing diseases concerning TXA2.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: June 18, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Ohtake, Michihiro Ohno, Kazuhiro Hoshi, Takahiro Takeda, Naohiro Yamada
  • Benzene-condensed heterocyclic derivatives and their uses
    Patent number: 6323235
    Abstract: Novel compounds having strong TXA2 receptor antagonist activities and PGI2 receptor agonist activities, which are effective for therapy and prevention of diseases related to TXA2, are disclosed. The compound of the present invention is represented by the following formula (I). (wherein the meanings of the symbols in the formula are as described in the specification).
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: November 27, 2001
    Inventors: Atsushi Ohtake, Kazuhiro Hoshi, Shunji Tsukamoto, Takahiro Takeda, Naohiro Yamada, Kazuhisa Matsumoto, Michihiro Ohno, Kiyotaka Ohno
  • Method for producing magnetic head
    Patent number: 6170150
    Abstract: A method for producing a magnetic head with reduced cross talk. A position of a projection for forming a magnetic gap on each of two magnetic core half bodies is adjusted by forming first and second position adjusting projections for having sidewall surfaces that are vertical relative to surfaces for forming track width adjusting grooves.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: January 9, 2001
    Assignee: Sony Corporation
    Inventors: Seiichi Ogata, Tadashi Saito, Kazuhiro Hoshi
  • Benzene-condensed heterocyclic derivatives and their uses
    Patent number: 6043264
    Abstract: Novel compounds having strong TXA.sub.2 receptor antagonist activities and PGI.sub.2 receptor agonist activities, which are effective for therapy and prevention of diseases related to TXA.sub.2, are disclosed. The compound of the present invention is represented by the following formula (I). ##STR1## (wherein the meanings of the symbols in the formula are as described in the specification).
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: March 28, 2000
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Ohtake, Kazuhiro Hoshi, Shunji Tsukamoto, Takahiro Takeda, Naohiro Yamada, Kazuhisa Matsumoto, Michihiro Ohno, Kiyotaka Ohno, deceased
  • Sulfonic acid derivative and its pharmaceutical application
    Patent number: 5496849
    Abstract: The present invention discloses sulfonamide derivative represented by the following general formula: ##STR1## [wherein, R.sub.1 is(i) --COOR.sub.2 (where, R.sub.2 is (1) hydrogen, (2) a pharmacologically acceptable cation, or (3) an alkyl having 1 to 14 carbon atoms) or,(ii) --C(.dbd.O)--R.sub.3 (wherein, R.sub.3 represents an alkyl having 1 to 4 carbon atoms); A is(i) --(CH.sub.2)n-- (wherein, n represents an integer of 0 to 3),(ii) --CH.dbd.CH--, or the group:(iii) --O--C(R.sub.4) (R.sub.5)-- (wherein, R.sub.4 and R.sub.5 represent (1) hydrogen or (2) an alkyl having 1 to 4 carbon atoms, and R.sub.4 and R.sub.5 may be identical or different); and,w is NH or --O--], as well as a thromboxane A2 receptor antagonistic drug having said derivative for its active ingredient.Since the compound of the present invention has excellent thromboxane A2 receptor antagonistic action, it can be used as a thromboxane A2 receptor antagonist of high activity and long duration.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: March 5, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Kiyotaka Ohno, Atsushi Ohtake, Shintaro Nishio, Kazuhiro Hoshi, Shunji Tsukamoto
  • 2,5,6,7-tetranor-4,8-inter-m-phenylene PGI.sub.2 derivatives
    Patent number: 5086071
    Abstract: Pharmaceutically useful compounds are 2,5,6,7-tetranor-4,8-inter-m-phenylene PGI.sub.2 derivatives which are excellently stable and potent in vivo.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: February 4, 1992
    Assignee: Toray Industries, Inc.
    Inventors: Kiyotaka Ohno, Atsushi Ohtake, Takashi Endoh, Shigeki Itou, Kazuhiro Hoshi
  • Automobile tire
    Patent number: D502142
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: February 22, 2005
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Kazuhiro Hoshi