Patents by Inventor Koutoku Aihara

Koutoku Aihara 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).

  • Patent number: 5925640
    Abstract: An object of the invention is to provide an apoptosis regulating composition. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient, at least one carbostyril derivatives of general formula (1) and salts thereof.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: July 20, 1999
    Assignee: Otsuka Pharmaceutical Co. Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5916890
    Abstract: An object of the invention is to provide an apoptosis regulating composition. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient, at least one carbostyril derivatives of general formula (1) ##STR1## and salts thereof.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: June 29, 1999
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5872120
    Abstract: An object of the invention is to provide an apoptosis regulating composition. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient, at least one carbostyril derivatives of general formula (1) ##STR1## and salts thereof.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: February 16, 1999
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5798358
    Abstract: An object of the invention is to provide an apoptosis regulating composition. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient, at least one carbostyril derivatives of general formula (1) ##STR1## and salts thereof.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: August 25, 1998
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5756675
    Abstract: The present invention provides a medicament for treating thrombocytopenia comprising as an active component at least one polypeptide selected from IL-1 and derivative thereof and a Il-1.alpha. derivative having an amino acid sequence of the formula (.alpha.) which is so modified as to fulfill at least one of the requirements of: deletion of the 16-position Arg; replacement of the 16-position Arg by another amino acid residue; deletion of the sequence of the 1-position Ser to the 14-position Phe and deletion of the amino acid sequence of the 1-position Ser to the 15-position Met.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: May 26, 1998
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yoshikatsu Hirai, Satoru Nakai, Koutoku Aihara, Kazuyoshi Kawai, Mayumi Kaneta, Takashi Kamogashira, Yoshihiro Masui
  • Patent number: 5750529
    Abstract: An object of the invention is to provide an apoptosis regulating composition. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient, at least one carbostyril derivatives of general formula (1) ##STR1## and salts thereof.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 12, 1998
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5691341
    Abstract: Apoptosis regulating compositions each comprising a member selected from a series of carbostyril derivatives and salts thereof, inclusive of carbostyril derivatives of general formula (1) ##STR1## and salts thereof, as an active ingredient are provided. The apoptosis regulating compositions of the invention are of use as anticancer agents, antiretrovirus agents, therapeutic agents for autoimmune diseases, therapeutic agents for thrombocytopenia, therapeutic agents for Alzheimer's disease, therapeutic agents for diseases of the liver, and cancer metastasis inhibitors, among others.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: November 25, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hideo Tanaka, Hitomi Iba, Kazuyoshi Kawai, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito, Michiaki Tominaga, Masakazu Adachi
  • Patent number: 5672603
    Abstract: An object of the invention is to provide an apoptosis regulating composition. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient at least one carbostyril derivatives of general formula (1) ##STR1## and salts thereof.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 30, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5658912
    Abstract: An object of the invention is to provide an apoptosis regulating composition. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient, at least one carbostyril derivatives of general formula (1) ##STR1## and salts thereof.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 19, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5543412
    Abstract: An object of the invention is to provide hepatitis therapy. According to the invention, an apoptosis regulating composition is provided which comprises, as an active ingredient, at least one carbostyril derivatives of general formula (1) ##STR1## and salts thereof.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 6, 1996
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hitomi Mori, Michiaki Tominaga, Masakazu Adachi, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito
  • Patent number: 5464833
    Abstract: Apoptosis regulating compositions each comprising a member selected from a series of carbostyril derivatives and salts thereof, inclusive of carbostyril derivatives of general formula (1) ##STR1## and salts thereof, as an active ingredient are provided. The apoptosis regulating compositions of the invention are of use as anticancer agents, antiretrovirus agents, therapeutic agents for autoimmune diseases, therapeutic agents for thrombocytopenia, therapeutic agents for Alzheimer's disease, therapeutic agents for diseases of the liver, and cancer metastasis inhibitors, among others.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: November 7, 1995
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Koutoku Aihara, Hideo Tanaka, Hitomi Iba, Kazuyoshi Kawai, Hiroyuki Ichikawa, Seiji Akamatsu, Fumio Saito, Michiaki Tominaga, Masakazu Adachi
  • Patent number: 5120534
    Abstract: The present invention provides a medicament for treating thrombocytopenia comprising as an active component at least one polypeptide selected from IL-1 and derivative thereof and a IL-1.alpha. derivative having an amino acid sequence of the formula (.alpha.) which is so modified as to fulfill at least one of the requirements of: deletion of the 16-position Arg; replacement of the 16-position Arg by another amino acid residue; deletion of the sequence of the 1-position Ser to the 14-position Phe and deletion of the amino acid sequence of the 1-position Ser to the 15-position Met.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: June 9, 1992
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yoshikatsu Hirai, Satoru Nakai, Koutoku Aihara, Kazuyoshi Kawai, Mayumi Kaneta, Takashi Kamogashira, Yoshihiro Masui