Patents by Inventor Masaya Ikunaka

Masaya Ikunaka 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: 6391616
    Abstract: This invention provides terpenoid lactone compounds, and processes for producing the terpenoid lactone compounds, which comprise cultivating Oidiodedron griseum FERM BP-5778 and then isolating the terpenoid lactone compounds from the fermentation broth. The present invention also provides a pharmaceutical composition comprising the terpenoid lactone compound, which is useful in the treatment of IL-1 and TNF mediated diseases or the like.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: May 21, 2002
    Assignee: Pfizer Inc.
    Inventors: Hiroyuki Nishida, Masaya Ikunaka, Nobuji Yoshikawa, Katsuomi Ichikawa, Nakao Kojima
  • Publication number: 20020052503
    Abstract: This invention provides a compound of general formula (I) 1
    Type: Application
    Filed: June 12, 2001
    Publication date: May 2, 2002
    Inventors: Hiroaki Wakabayashi, Masaya Ikunaka
  • Patent number: 6288225
    Abstract: Compounds of formula I are antagonists of Substance P and have activity against CNS and gastrointestinal disorders.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: September 11, 2001
    Assignee: Pfizer INC
    Inventors: Hiroaki Wakabayashi, Masaya Ikunaka
  • Patent number: 6225339
    Abstract: This invention provides terpenoid lactone compounds, and processes for producing the terpenoid lactone compounds, which comprise cultivating Oidiodedron griseum FERM BP-5778 and then isolating the terpenoid lactone compounds from the fermentation broth. The present invention also provides a pharmaceutical composition comprising the terpenoid lactone compound, which is useful in the treatment of IL-1 and TNF mediated diseases or the like.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: May 1, 2001
    Assignee: Pfizer Inc.
    Inventors: Hiroyuki Nishida, Masaya Ikunaka, Nobuji Yoshikawa, Katsuomi Ichikawa, Nakao Kojima
  • Patent number: 6221899
    Abstract: This invention provides terpenoid lactone compounds, and processes for producing the terpenoid lactone compounds, which comprise cultivating Oidiodedron griseum FERM BP-5778 and then isolating the terpenoid lactone compounds from the fermentation broth. The present invention also provides a pharmaceutical composition comprising the teipenoid lactone compound, which is useful in the treatment of IL-1 and TNF mediated diseases or the like.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: April 24, 2001
    Assignee: Pfizer Inc.
    Inventors: Hiroyuki Nishida, Masaya Ikunaka, Nobuji Yoshikawa, Katsuomi Ichikawa, Nakao Kojima
  • Patent number: 6180647
    Abstract: Compounds of the formula are effective for the treatment of conditions in mammals which require inhibition of the action of substance P.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: January 30, 2001
    Assignee: Pfizer Inc.
    Inventors: Hiroaki Wakabayashi, Masaya Ikunaka
  • Patent number: 6083943
    Abstract: A compound of the chemical formula (I) and its pharmaceutically acceptable salt: ##STR1## wherein Y is C.sub.2 -C.sub.4 alkylene; Z is a valence bond or C.sub.1 -C.sub.6 alkylene; R.sup.1 is substituted or unsubstituted aryl (e.g., phenyl and naphthyl) or heteroaryl (e.g., thienyl and furyl); R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sup.3 is hydrogen, hydroxy or the like; R.sup.4 is substituted or unsubstituted benzyl or the like. Typical examples are (2S*,3S*,4R*,5R*)-4-Carboxy-3-[N-(5-Isopropyl-2-methoxy-benzyl)amino]-5-me thyl-2-phenylpyrrolidine and (2S*,3S*,5S*)-5-Carboxy-3-[N-(2-methoxy-5-trifluoromethoxybenzyl)amino]-2- phenylpiperidine. The novel substituted azaheterocyclecarboxylic acids in this invention have excellent substance P antagonistic activity and are thus useful for the treatment of gastrointestinal disorders, central nervous system disorders, allergy, inflammatory diseases, asthma, pain, emesis or migraine in mammals, especially humans.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: July 4, 2000
    Assignee: Pfizer Inc
    Inventors: Masaya Ikunaka, Yuji Shishido, Masami Nakane
  • Patent number: 5721255
    Abstract: The present invention relates to novel substituted benzylamino nitrogen containing non-aromatic heterocycles and, specifically, to compounds of the formula ##STR1## wherein W, R.sup.1, R.sup.2, R.sup.3 and A are as defined in the specification, and to intermediates used in the synthesis of such compounds. The novel compounds of formula I are useful in the treatment of inflammatory and central nervous system disorders, as well as other disorders.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: February 24, 1998
    Assignee: Pfizer Inc.
    Inventors: Harry R. Howard, Masami Nakane, Masaya Ikunaka, Kunio Satake, Terry J. Rosen, John A. Lowe, III, Brian T. O'Neill, Fumitaka Ito