Patents by Inventor Tomohiro Ohtani

Tomohiro Ohtani 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).

  • Plating method for aluminum alloy material
    Publication number: 20060226020
    Abstract: There is provided a method of applying plating to an aluminum alloy material, which comprises a step of cathodic acid electrolysis as a pretreatment for the plating for removing insoluble matters from the aluminum alloy generated in a previous alkaline-etching step.
    Type: Application
    Filed: April 6, 2006
    Publication date: October 12, 2006
    Applicant: Kioritz Corporation
    Inventors: Tomohiro Ohtani, Masanori Iwaizumi, Masahiko Ishii, Katsumasa Nozaki, Minoru Yonekawa
  • Method for manufacturing a cylinder for two-stroke internal combustion engine and the cylinder manufactured thereby
    Patent number: 6041499
    Abstract: A method for manufacturing a cylinder for a two-stroke internal combustion engine provided with a pair of hollow scavenging passages, which comprises the steps of casting a raw cylinder body provided with the hollow scavenging passages and forming scavenging ports and/or air-fuel mixture inlet ports communicating respectively with said scavenging passages in the raw cylinder body by means of non-contact machining method.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: March 28, 2000
    Assignee: Kioritz Corporation
    Inventors: Fujihiro Matsuura, Tomohiro Ohtani, Minoru Yonekawa
  • Two-cycle internal combustion gasoline engine cylinder
    Patent number: 5211153
    Abstract: The present invention relates to a two-cycle internal combustion gasoline engine cylinder. The two-cycle engine cylinder according to this invention is characterized in that a smooth hard chromium plated layer is formed on a combustion chamber top inner surface of the cylinder.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: May 18, 1993
    Assignee: Kioritz Corporation
    Inventors: Minoru Yonekawa, Yoshiaki Nagao, Yasuharu Sato, Isao Masuda, Tomohiro Ohtani