Patents by Inventor Hachio Miyazawa

Hachio Miyazawa 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).

  • Use of imidazopyrazole derivatives as analgesics and anti-inflammatory agents
    Patent number: 5723481
    Abstract: Described herein are of formula (I): ##STR1## and pharmaceutically acceptable salts thereof are analgesics and anti-inflammatory agents as well having anti-ulcer and 5-lipoxygenase inhibitory activities.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: March 3, 1998
    Assignee: Sankyo Company, Limited
    Inventors: Atsusuke Terada, Kazuyuki Wachi, Hachio Miyazawa, Yoshio Iizuka, Kazuo Hasegawa, Keiichi Tabata
  • Use of imidazopyrazole derivatives as analgesics anti-inflammatory agents
    Patent number: 5698576
    Abstract: Described herein are compounds of formula (I): ##STR1## ?in which: R.sup.1 and R.sup.2 are hydrogen, optionally substituted alkyl, cycloalkyl, alkenyl, aralkyl, arylalkenyl, aryl, aromatic heterocyclic, cyano or halogen; R.sup.3 is hydrogen, optionally substituted alkyl, aralkyl or acyl; R.sup.4 and R.sup.5 are hydrogen, optionally substituted alkyl, cycloalkyl, alkenyl, aralkyl, arylalkenyl, aryl or aromatic heterocyclic!; and pharmaceutically acceptable salts thereof are analgesics and anti-inflammatory agents as well having anti-ulcer and 5-lipoxygenase inhibitory activities.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: December 16, 1997
    Assignee: Sankyo Company, Limited
    Inventors: Atsusuke Terada, Kazuyuki Wachi, Hachio Miyazawa, Yoshio Iizuka, Kazuo Hasegawa, Keiichi Tabata
  • Use of imidazopyrazole derivatives as analgesics and anti-inflammatory agents
    Patent number: 5665752
    Abstract: Described herein are compounds of formula (I): ##STR1## and pharmaceutically acceptable salts thereof are analgesics and anti-inflammatory agents as well having anti-ulcer and 5-lipoxygenase inhibitory activities.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: September 9, 1997
    Assignee: Sankyo Company, Limited
    Inventors: Atsusuke Terada, Kazuyuki Wachi, Hachio Miyazawa, Yoshio Iizuka, Kazuo Hasegawa, Keiichi Tabata
  • Use of imidazopyrazole derivatives as analgesics and anti-inflammatory agents
    Patent number: 5232939
    Abstract: Compounds of formula (I): ##STR1## and pharmaceutically acceptable salts thereof are analgesics and anti-inflammatory agents as well having anti-ulcer and 5-lipoxygenase inhibitory activities.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: August 3, 1993
    Assignee: Sankyo Company Limited
    Inventors: Atsusuke Terada, Kazuyuki Wachi, Hachio Miyazawa, Yoshio Iizuka, Kazuo Hasegawa, Keiichi Tabata
  • 7.alpha.-Methoxycephalosporin derivatives and their pharmaceutical compositions having antibacterial activity
    Patent number: 4247548
    Abstract: 7.alpha.-Methoxycephalosporin derivatives of general formula (I): ##STR1## wherein: R.sup.1 represents a hydroxy group; a C.sub.1 -C.sub.4 alkoxy group; a C.sub.2 -C.sub.5 aliphatic acyloxy group; a benzoyloxy group which is unsubstituted or has one or more C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro or halogen substituents; a benzenesulphonyloxy group which is unsubstituted or has one or more C.sub.1 -C.sub.4 alkyl substituents; or a C.sub.1 -C.sub.3 alkanesulphonyloxy group which is unsubstituted or has one or more C.sub.1 -C.sub.3 alkoxy, cyano, nitro, halogen or C.sub.2 -C.sub.4 alkoxycarbonyl substituents;R.sup.2 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, a halogen atom, a carboxyl group, a C.sub.2 -C.sub.5 alkoxycarbonyl group, a carbamoyl group, an alkylcarbamoyl group in which the alkyl moiety has from 1 to 3 carbon atoms, a di(C.sub.1 -C.sub.3 alkyl)carbamoyl group or a cyano group;R.sup.
    Type: Grant
    Filed: April 10, 1979
    Date of Patent: January 27, 1981
    Assignee: Sankyo Company Limited
    Inventors: Masafumi Yoshimoto, Hachio Miyazawa, Takuzo Nishimura, Akiko Ando, Norio Nakamura, Hideo Nakao