Patents by Inventor Shigeho Inaba

Shigeho Inaba 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: 3951984
    Abstract: A 3-benzazocine compound of the formula: ##SPC1##Wherein R.sub.1, R.sub.3, R.sub.4, R.sub.5 and R.sub.8 are each hydrogen or lower alkyl, R.sub.2 is hydrogen, lower alkyl or phenyl and R.sub.6 and R.sub.7 are each lower alkyl, and its pharmaceutically acceptable acid addition salts, which are useful as analgesics and can be produced by reacting a tetrahydropyridine compound of the formula: ##SPC2##Wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are each as defined above or its salt with a Lewis acid.
    Type: Grant
    Filed: December 18, 1973
    Date of Patent: April 20, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Michio Kimura, Takeshi Nakajima, Toshio Atsumi, Kenji Kobayashi, Yoshiaki Takebayashi, Shigeho Inaba, Hisao Yamamoto
  • Patent number: 3950526
    Abstract: Quinazoline derivatives represented by the formula ##SPC1##Wherein R.sub.1 and R.sub.2 are individually a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, a lower alkylthio group or a lower alkylsulfonyl group; R.sub.3 is a hydrogen atom, a lower alkyl group, a lower cycloalkyl group, a napthyl group, a furyl group or a thienyl group; R.sub.4 is a lower cycloalkyl group or a trihalomethyl group; and n is an integer of 1 to 3, are novel compounds and have excellent pharmacological properties, particularly as anti-inflammatory and analgesic effects with low toxicity. They can be prepared by treating with ammonia a trihaloacetamidophenylketone derivative of the formula, ##SPC2##Wherein R.sub.1, R.sub.2 and R.sub.3 are as defined above; R is a hydrogen atom or a group of the formula --C.sub.n H.sub.2n --R.sub.4 ; and X is a halogen atom.
    Type: Grant
    Filed: October 25, 1974
    Date of Patent: April 13, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shigeho Inaba, Michihiro Yamamoto, Kikuo Ishizumi, Kazuo Mori, Masao Koshiba, Hisao Yamamoto
  • Patent number: 3932637
    Abstract: Compositions and methods for inducing polyphagia in immature meat producing animals comprise administering orally or by injection an effective but nontoxic subpharmacodynamic quantity of a 1,4-benzodiazepinone active ingredient whose structure is characterized by an 1-alkyl-sulfonylalkyl moiety. Preferred active ingredients are 1-(ethylsulfonylethyl)-5-(o-halophenyl)-7-halo-1,3-dihydro-2H-1,4-benzodia zepin-2-ones.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: January 13, 1976
    Assignees: Sumitomo Chemical Company, Limited, SmithKline Corporation
    Inventors: Hisao Yamamoto, Shigeho Inaba, Mitsuhiro Akatsu, Clifton A. Baile, Roger G. Parish