Patents by Inventor Masaki Tomishima

Masaki Tomishima 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).

  • Publication number: 20100256048
    Abstract: [Problems] To provide an antibacterial agent, particularly a novel polypeptide compound having an antifungal action. [Means for Solution] As a result of an extensive study on a novel antifungal agent, the inventors have found that an excellent anti-deep-fungal activity is exhibited by introducing a cyclohexylmethylamino group or a piperidylmethylamino group as a partial structure of a natural polypeptide compound, and completed the present invention. The compound of the present invention has an excellent antibacterial activity and is therefore useful as an agent for preventing or treating various fungal infections.
    Type: Application
    Filed: October 28, 2008
    Publication date: October 7, 2010
    Applicant: Astellas Pharma Inc.
    Inventors: Masaki Tomishima, Hiroshi Morikawa, Takuya Makino, Masashi Imanishi, Natsuko Kayakiri, Toru Asano, Takanobu Araki, Toshiya Nakagawa
  • Publication number: 20050014812
    Abstract: The present invention provides novel benzimidazole compounds of the formula (I): wherein each symbol is as defined in the specification, salts thereof and prodrugs thereof, which are useful in treating, for example, the diseases curable through decrease in blood sugar level.
    Type: Application
    Filed: June 4, 2004
    Publication date: January 20, 2005
    Applicants: Fujisawa Pharmaceutical Co., Ltd., Daicel Chemical Industries, Ltd.
    Inventors: Hisashi Hayashida, Keiko Hatanaka, Takeshi Kato, Yoshiyuki Kido, Masaki Tomishima, Hiroshi Kayakiri, Ichiro Takase, Takahiro Hiramura
  • Publication number: 20040266774
    Abstract: The present invention is a compound and pharmaceutical composition comprising a compound of formula (I): 1
    Type: Application
    Filed: June 14, 2004
    Publication date: December 30, 2004
    Applicant: FUJISAWA PHARMACEUTICAL CO., LTD.
    Inventors: Kiyotaka Ito, Glen W. Spears, Fumie Takahashi, Akira Yamada, Masaki Tomishima, Hiroshi Miyake
  • Patent number: 6770667
    Abstract: The present invention is a compound and pharmaceutical composition comprising a compound of formula (I): wherein R1 is a 4-(lower) alkyl-imidazol-1-yl or a 4,5-di(lower) alkyl-imidazol-1-yl group, R2 is a hydrogen atom or a lower alkyl group, and R3 is a fluorenyl group. The compound of formula (I) includes pharmaceutically acceptable salts: The compound of formula (I) and salts thereof have 5-HT antagonism activity.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: August 3, 2004
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Kiyotaka Ito, Glen W. Spears, Fumie Takahashi, Akira Yamada, Masaki Tomishima, Hiroshi Miyake
  • Patent number: 6743776
    Abstract: This invention relates to new polypeptide compounds represented by general formula [I]: wherein R1 and R2 are as defined in the description and pharmaceutically acceptable salt thereof which have antimicrobial activities (especially, antifungal activities), inhibitory activity on &bgr;-1,3-glucan synthase, to process for preparation thereof, to a pharmaceutical composition comprising the same, and to a method for the prophylactic and/or therapeutic treatment of infectious disease including Pneumocystis carinii infection (e.g. Pneumocystis carinii pneumonia) in a human being or an animal.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: June 1, 2004
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ohki, Masaki Tomishima, Akira Yamada, Hisashi Takasugi
  • Publication number: 20030176454
    Abstract: A compound of the formula (I): wherein A is a hydrogen atom, an optionally substituted, unsaturated, N-containing heterocyclic group or a group of the formula (a): wherein R is an optionally substituted aryl group or an optionally substituted heterocyclic group; M is —(CH2)n-, —(CH2)n-O—(CH2)m-or —(CH2)n-NH—(CH2)m-, wherein n and m are independently 0, 1 or 2; Q is an optionally substituted cycloalkylene group, an optionally substituted arylene group or an optionally substituted divalent heterocyclic group; and the moiety of the formula (b): is an optionally substituted, unsaturated, mono-, di-, tri- or tetra-cyclic, N-containing heterocyclic group which may contain additional hetero atom(s) selected from the group consisting of nitrogen, oxygen and sulfur atoms as the ring member(s), its prodrug or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: November 1, 2002
    Publication date: September 18, 2003
    Inventors: Akira Yamada, Glen Spears, Hisashi Hayashida, Masaki Tomishima, Kiyotaka Ito, Masashi Imanishi
  • Patent number: 6521643
    Abstract: A compound of formula (I) wherein each symbol is as defined in the specification, and pharmaceutically acceptable salts thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof possess a strong inhibitory activity on the production of nitric oxide (NO), and are useful for prevention and/or treatment of NOS(nitric oxide synthasey)-mediated diseases such as adult respiratory distress syndrome, myocarditis, synovitis, septic shock, insulin-ependent diabetes mellitus, ulcerative colitis, cerebral infarction, rheumatoid arthritis, osteoarthritis, osteoporosis, systemic lupus erythematosus, rejection by organ transplantation, asthma, pain, ulcer, and the like in human being and animals.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: February 18, 2003
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaki Tomishima, Kazuhiko Take
  • Publication number: 20020193560
    Abstract: This invention relates to new polypeptide compounds represented by general formula (I), wherein R 1 and R 2 are as defined in the description and pharmaceutically acceptable salt thereof which have antimicrobial activities (especially antifungal activities), inhibitory activity on &bgr; -1,3-glucan synthase, to process for preparation thereof, to a pharmaceutical composition comprising the same, and to a method for the prophylactic and/or therapeutic treatment of infectious disease including Pneumocystis carinii infection (e.g. Pneumocystis carinii pneumonia in a human being or an animal.
    Type: Application
    Filed: May 21, 1999
    Publication date: December 19, 2002
    Inventors: HIDENORI OHKI, MASAKI TOMISHIMA, AKIRA YAMADA, HISASHI TAKASUGI
  • Patent number: 6265536
    Abstract: This invention relates to new polypeptide compounds represented by the following formula (I): wherein R1 is as defined in the description and pharmaceutically acceptable salt thereof which have antimicrobial activities (especially, antifungal activities), inhibitory activity on &bgr;-1,3-glucan synthase, to process for preparation thereof, to a pharmaceutical composition comprising the same, and to a method for the prophylactic and/or therapeutic treatment of infectious diseases including Pneumocystis carinii infection (e.g. Pneumocystis carinii pneumonia) in a human being or an animal.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: July 24, 2001
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ohki, Masaki Tomishima, Akira Yamada, Hisashi Takasugi
  • Patent number: 6107458
    Abstract: This invention relates to new polypeptide compounds represented by the following formula (I): ##STR1## wherein R.sup.1 is as defined in the description and pharmaceutically acceptable salt thereof which have antimicrobial activities (especially, antifungal activities), inhibitory activity on .beta.-1,3-glucan synthase, to process for preparation thereof, to a pharmaceutical composition comprising the same, and to a method for the prophylactic and/or therapeutic treatment of infectious diseases including Pneumocystis carinii infection (e.g. Pneumocystis carinii pneumonia) in a human being or an animal.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: August 22, 2000
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ohki, Masaki Tomishima, Akira Yamada, Hisashi Takasugi
  • Patent number: 5693750
    Abstract: A process for preparing a polypeptide compound having antimicrobial activities of the following general formula: ##STR1## wherein R.sup.1 is hydrogenR.sup.2 is acyl group,R.sup.3 is hydroxy or acyloxy,R.sup.4 is hydroxy or hydroxysulfonyloxy,R.sup.5 is hydrogen or lower alkyl which may have one or more suitable substituent(s), andR.sup.6 is hydrogen, hydroxy or acyl (lower) alkylthio anda pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: December 2, 1997
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ohki, Masaki Tomishima, Akira Yamada, Hisashi Takasugi
  • Patent number: 5569646
    Abstract: A polypeptide compound having antifungal activities of the following general formula: ##STR1## wherein R.sup.1 is hydrogen R.sup.2 is acyl group,R.sup.3 is hydroxy or acyloxy,R.sup.4 is hydroxy or hydroxysulfonyloxy,R.sup.4 is hydrogen or lower alkyl which may have one or more suitable substituent(s), andR.sup.6 is hydrogen, hydroxy or acyl (lower) alkylthio and a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: October 29, 1996
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ohki, Masaki Tomishima, Akira Yamada, Hisashi Takasugi