Patents by Inventor Tohru Tatsuno

Tohru Tatsuno 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).

  • Amide derivative
    Patent number: 6936736
    Abstract: A compound of the formula: wherein Ar is optionally substituted phenyl, etc.; n is 0, 1 or 2; R1 is hydogen atom, optionally substituted alkyl, etc.; R2 and R3 are independently optionally substituted alkyl, etc.; R4 and R5 are independently hydrogen atom or optionally substituted alkyl; R6 is hydrogen atom, hydroxy or alkyl; or a pharmaceutically acceptable salt thereof is useful as a medicament for treating retinal degenerative disorders and the like.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: August 30, 2005
    Assignee: Sumitomo Manufacturing Company Limited
    Inventors: Kazuhito Ikeda, Tohru Tatsuno, Hiroki Ogo, Toshio Nishihara, Tatsuya Fujibayashi, Ryu Nagata
  • Amide derivative
    Publication number: 20020147204
    Abstract: A compound of the formula: 1
    Type: Application
    Filed: March 26, 2002
    Publication date: October 10, 2002
    Applicant: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Kazuhito Ikeda, Tohru Tatsuno, Hiroki Ogo, Toshio Nishihara, Tatsuya Fujibayashi, Ryu Nagata
  • Amide derivative
    Patent number: 6384033
    Abstract: A compound of the formula: wherein Ar is optionally substituted phenyl, etc.; n is 0, 1 or 2; R1 is hydogen atom, optionally substituted alkyl, etc.; R2 and R3 are independently optionally substituted alkyl, etc.; R4 and R5 are independently hydrogen atom or optionally substituted alkyl; R6 is hydrogen atom, hydroxy or alkyl; or a pharmaceutically acceptable salt thereof is useful as a medicament for treating retinal degenerative disorders and the like.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: May 7, 2002
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Kazuhito Ikeda, Tohru Tatsuno, Hiroki Ogo, Toshio Nishihara, Tatsuya Fujibayashi, Ryu Nagata
  • Nitrone derivatives
    Patent number: 6194461
    Abstract: A compound represented by the figure (1) or a pharmaceutically acceptable salt thereof is useful as medicament for treating retinal degenerative disorders: wherein Ar is optionally substitued phenyl or optionally substituted heteroaryl;. n is 0, 1 or 2; W is —CH2NH— or —CH═N(O)—; R1, R2 and R3 are independently optionally substituted alkyl, carboxyl or alkoxycarbonyl; any two groups of R1, R2 and R3 may be taken together with the carbon atom to form optionally substituted cycloalkane; all of R1, R2 and R3 may be taken together with the adjusent carbon atom to form optionally substituted bicycloalkane or optionally substituted tricycloalkane; R4 and R5 are independently hydrogen atom or optionally substituted alkyl.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: February 27, 2001
    Assignee: Sumitomo Pharmaceuticals Co., Ltd.
    Inventors: Kazuhito Ikeda, Tohru Tatsuno, Hiroki Ogo, Shuji Masumoto, Tatsuya Fujibayashi, Ryu Nagata
  • Method and apparatus for recording information on an opto-magnetic recording medium by applying a modulated light beam while applying a magnetic field alternating with a constant period
    Patent number: 5093817
    Abstract: Method and apparatus for recording information on an opto-magnetic recording medium by applying an A.C. magnetic field of a constant frequency to the opto-magnetic recording medium as a recording bias magnetic field and scanning the medium by a light beam modulated with a recording signal in synchronism with the A.C. magnetic field to record the information.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: March 3, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiichi Fujii, Masaharu Tsukada, Takayuki Aizawa, Tohru Tatsuno, Yasuyuki Tamura, Norio Hashimoto
  • Optical system driving apparatus
    Patent number: 5039202
    Abstract: An optical system driving arrangement includes an optical system driving body, a support shaft provided on the body, an optical system holding member movably supported by the support shaft, an optical system held by the optical system holding member for directing a light beam supplied from the body to an object to be irradiated, a drive device for moving the optical system holding member relative to the body and at least one constituent of an arrangement for detecting the position of the optical system held by the optical system holding member.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: August 13, 1991
    Assignees: Canon Kabushiki Kaisha, Canon Denshi Kabushiki Kaisha
    Inventors: Osamu Koyama, Hideo Nakajima, Tohru Tatsuno, Yasuo Nakamura