Patents by Inventor Masaaki Kuwata

Masaaki Kuwata 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: 8117942
    Abstract: A vehicle handle with improved vibration proof function. A balance weight has an inner balance weight portion with a center-of-mass positioned in a handle pipe, and an outer balance weight portion. A floating damper interposed between an outer periphery of the inner balance weight portion and an inner surface of the handle pipe supports the balance weight in one location that includes the center-of-mass of the balance weight.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: February 21, 2012
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Masaaki Kuwata, Yoshihiro Suzuki
  • Publication number: 20070151404
    Abstract: A vehicle handle with improved vibration proof function. A balance weight has an inner balance weight portion with a center-of-mass positioned in a handle pipe, and an outer balance weight portion. A floating damper interposed between an outer periphery of the inner balance weight portion and an inner surface of the handle pipe supports the balance weight in one location that includes the center-of-mass of the balance weight.
    Type: Application
    Filed: December 11, 2006
    Publication date: July 5, 2007
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Masaaki Kuwata, Yoshihiro Suzuki
  • Patent number: 6497300
    Abstract: A motorcycle includes an integrated locking system. The locking system actuates a seat lock from the main switch as well as a handlebar or steering lock. The steering lock is structured such that an overlap of components results in a locking pin passage that extends into a locking pin chamber. The locking pin passage is substantially shielded by a labyrinth defined by overlapping components. The main switch is positioned forward of at least one gauge and a meter cover surrounds at least the gauge and the main switch as well as covers at least a portion of the fuel tank.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: December 24, 2002
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Shuuichi Mori, Masaaki Kuwata, Yutaka Kubo, Shinsuke Okada
  • Publication number: 20010022247
    Abstract: A motorcycle includes an integrated locking system. The locking system actuates a seat lock from the main switch as well as a handlebar or steering lock. The steering lock is structured such that an overlap of components results in a locking pin passage that extends into a locking pin chamber. The locking pin passage is substantially shielded by a labyrinth defined by overlapping components. The main switch is positioned forward of at least one gauge and a meter cover surrounds at least the gauge and the main switch as well as covers at least a portion of the fuel tank.
    Type: Application
    Filed: April 16, 2001
    Publication date: September 20, 2001
    Inventors: Shuuichi Mori, Masaaki Kuwata, Yutaka Kubo, Shinsuke Okada
  • Publication number: 20010022248
    Abstract: A motorcycle includes an integrated locking system. The locking system actuates a seat lock from the main switch as well as a handlebar or steering lock. The steering lock is structured such that an overlap of components results in a locking pin passage that extends into a locking pin chamber. The locking pin passage is substantially shielded by a labyrinth defined by overlapping components. The main switch is positioned forward of at least one gauge and a meter cover surrounds at least the gauge and the main switch as well as covers at least a portion of the fuel tank.
    Type: Application
    Filed: April 13, 2001
    Publication date: September 20, 2001
    Inventors: Shuuichi Mori, Masaaki Kuwata, Yutaka Kubo, Shinsuke Okada
  • Patent number: 6237710
    Abstract: A motorcycle includes an integrated locking system. The locking system actuates a seat lock from the main switch as well as a handlebar or steering lock. The steering lock is structured such that an overlap of components results in a locking pin passage that extends into a locking pin chamber. The locking pin passage is substantially shielded by a labyrinth defined by overlapping components. The main switch is positioned forward of at least one gauge and a meter cover surrounds at least the gauge and the main switch as well as covers at least a portion of the fuel tank.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: May 29, 2001
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Shuuichi Mori, Masaaki Kuwata, Yutaka Kubo, Shinsuke Okada
  • Patent number: 5994541
    Abstract: The process for preparing 2-amino-6-iodopurine including the steps of suspending at least one chloropurine compound selected from 2-formylamino-6-chloropurine, 2-formylamino-6-chloropurine acetate and 2-amino-6-chloropurine in a solution comprising aqueous hydriodic acid and an alkyl ketone having 3 to 7 carbon atoms; and stirring the resulting suspension at 0.degree. to 50.degree. C. According to the process of the present invention, 2-amino-6-iodopurine can be simply, industrially, and advantageously prepared.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: November 30, 1999
    Assignee: Sumika Fine Chemicals Co., Ltd.
    Inventors: Taketo Hayashi, Kenji Nishiwaki, Masaaki Kuwata