Patents by Inventor Katsuyoshi Kawashima

Katsuyoshi Kawashima 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: 7767854
    Abstract: The invention provides the following compound (I): wherein R1 is methoxy group, hydroxyl group or hydrogen atom; R2 is hydrogen atom, C1-4 alkyl group, C1-4 alkylcarbonyl group or arylcarbonyl group; D is a group of the following formula (A), (B), or (C). The compound is useful as a medicament for treating neuropathic pain or pain caused by various diseases such as rheumatoid arthritis and osteoarthritis, and inflammation.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: August 3, 2010
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Toshiya Morie, Yasunori Tsuzuki, Keiji Adachi, Kazuhiro Mizuno, Katsuyoshi Kawashima, Isao Shimizu, Daisuke Ishii
  • Publication number: 20090082463
    Abstract: The invention provides the following compound (I): wherein R1 is methoxy group, hydroxyl group or hydrogen atom; R2 is hydrogen atom, C1-4 alkyl group, C1-4 alkylcarbonyl group or arylcarbonyl group; D is a group of the following formula (A), (B), or (C). The compound is useful as a medicament for treating neuropathic pain or pain caused by various diseases such as rheumatoid arthritis and osteoarthritis, and inflammation.
    Type: Application
    Filed: April 20, 2006
    Publication date: March 26, 2009
    Inventors: Toshiya Morie, Yasunori Tsuzuki, Keiji Adachi, Kazuhiro Mizuno, Katsuyoshi Kawashima, Isao Shimizu, Daisuke Ishii
  • Patent number: 7084176
    Abstract: N-Arylphenylacetamide derivatives represented by the following formula [I]: (wherein R1 is C1-6 alkoxy, etc.; R2 is hydrogen, —(CH2)m—N(R6)(R7) (m is an integer of from 1 to 4; R6 is hydrogen, C1-4 alkyl, etc., R7 is hydrogen, etc.), etc.; R3 is hydrogen, halogen, etc.; R4 is C6-10 alkyl, —Y—R8 (Y is a single bond, C1-6 alkylene, C2-6 alkenylene, C2-6 alkynylene, etc., R8 is aryl, C3-8 cycloalkyl, C6-15 polycycloalkyl, etc.), etc.; R5 is hydrogen, etc.; and X1 is hydrogen), or pharmaceutically acceptable salts thereof or hydrates or solvates of the same, and a pharmaceutical composition containing the same. These compounds are useful as preventives and/or remedies giving no pain at the early stage of administration, which are efficacious in oral administration and have potent analgesic and antiinflammatory effects.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: August 1, 2006
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Toshiya Morie, Keiji Adachi, Kazumi Niidome, Katsuyoshi Kawashima, Isao Shimizu, Daisuke Ishii
  • Publication number: 20040248983
    Abstract: N-Arylphenylacetamide derivatives represented by the following formula [I]: 1
    Type: Application
    Filed: December 11, 2003
    Publication date: December 9, 2004
    Inventors: Toshiya Morie, Keiji Adachi, Kazumi Niidome, Katsuyoshi Kawashima, Isao Shimizu, Daisuke Ishii
  • Patent number: 5847159
    Abstract: 1-?.omega.-(3,4-Dihydro-2-naphthalenyl)alkyl!cyclic amine derivative of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are H, halogen, OH, alkyl, alkoxy, hydroxymethyl, etc., or R.sup.1 and R.sup.2 combine to form methylenedioxy, trimethylene, etc., R.sup.3 is H, etc., R.sup.4 is H, OH, alkyl, etc., R.sup.5 is H, alkyl, etc., p is integer of from 2 to 6, and q is integer of from 3 to 7, provided that when p is 2, and q is 5, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are not simultaneously H, or salts thereof, or N-oxide derivatives thereof, or a process for preparing the same, or pharmaceutical composition containing the same. The compounds of the present invention show potent inhibitory effect on the micturition reflex, and are useful as agents for treatment of frequent urination and urinary incontinence.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: December 8, 1998
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Naoki Kai, Aki Kanehira, Toshiya Morie, Katsuhiko Hino, Katsuyoshi Kawashima, Isao Shimizu, Kazuhisa Akiyama
  • Patent number: 4758566
    Abstract: Compounds of the formula: ##STR1## wherein R.sub.1 represents fluorine atom at the para position, chlorine atom at the para position, methyl group at the para position or trifluoromethyl group at the para or meta position; and R.sub.2 represents hydrogen atom, methyl group, ethyl group, 2-hydroxyethyl group or 3-hydroxypropyl group, provided that R.sub.2 represents ethyl group, 2-hydroxyethyl group or 3-hydroxypropyl group when R.sub.1 represents fluorine atom at the para position, methyl group at the para position or trifluoromethyl group at the para position, and a pharmaceutically acceptable salt therof, process for the preparation thereof, and pharmaceutical composition containing the same. The compounds and pharmaceutically acceptable salts thereof show excellent cytoprotective effect and useful for prophylaxis and treatment of peptic ulcer and inflammatory gastrointestinal diseases.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: July 19, 1988
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Hitoshi Uno, Katsuhiko Hino, Toshiaki Kadokawa, Katsuyoshi Kawashima
  • Patent number: 4677107
    Abstract: Use of a compound of the formula: ##STR1## wherein R is hydrogen atom or ethyl group, or a pharmaceutically acceptable salt thereof for prophylaxis and/or treatment of peptic ulcer, and a method for prophylaxis and/or treatment of peptic ulcer disease which comprises administering an effective amount of the above-mentioned compound to warm blooded aninal, especially human. Said active compounds have excellent pharmacological activities such as inhibition of ulceration and inhibition of gastric secretion, and hence, are useful as an anti-peptic ulcer agent.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: June 30, 1987
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Toshiaki Kadokawa, Katsuyoshi Kawashima, Hitoshi Uno, Katsuhiko Hino
  • Patent number: 4447439
    Abstract: Novel 2-cyclic amino-2-(1,2-benzisoxazol-3-yl)acetic acid derivatives of the formula: ##STR1## wherein R.sub.1 is hydrogen or a halogen atom, R.sub.2 is a lower alkyl group, Am is a 5- to 9-membered saturated cyclic amino group which may be substituted by a lower alkyl group, and the group: ##STR2## binds to the piperidine moiety at 3- or 4-position of the latter, and their pharmaceutically acceptable acid addition salts and quaternary ammonium salts, process for their preparation, and pharmaceutical compositions containing these compounds. They have potent anticholinergic antispasmodic activity, while they are weak in side effects such as mydriasis, inhibition of salivary secretion and tachycardia.
    Type: Grant
    Filed: August 25, 1982
    Date of Patent: May 8, 1984
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Haruki Nishimura, Shunsuke Naruto, Hiroyuki Mizuta, Toshiaki Kadokawa, Katsuyoshi Kawashima