Patents by Inventor Koji Ohbayashi

Koji Ohbayashi 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).

  • Heat treatment method of steel components, steel components and manufacture method of steel components
    Patent number: 7998282
    Abstract: A method of heat-treating a steel member including carburizing a steel member in a carburizing gas under a reduced pressure. The steel member is then cooled in a cooling gas having a pressure lower than atmospheric pressure. A desired portion of the cooled steel member is then heated using high-density energy. The steel member is then quenched.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: August 16, 2011
    Assignee: AISIN AW Co., Ltd.
    Inventors: Takao Taniguchi, Hisao Shirai, Koji Ohbayashi, Kazuaki Okada, Hideo Kanisawa, Shuji Kozawa
  • Heat treatment method of steel components, steel components and manufacture method of steel components
    Publication number: 20070102068
    Abstract: A method of heat-treating a steel member including carburizing a steel member in a carburizing gas under a reduced pressure. The steel member is then cooled in a cooling gas having a pressure lower than atmospheric pressure. A desired portion of the cooled steel member is then heated using high-density energy. The steel member is then quenched.
    Type: Application
    Filed: September 26, 2006
    Publication date: May 10, 2007
    Applicant: AISIN AW CO., LTD.
    Inventors: Takao Taniguchi, Hisao Shirai, Koji Ohbayashi, Kazuaki Okada, Hideo Kanisawa, Shuji Kozawa
  • Quality evaluation equipment of network speaking
    Publication number: 20030076818
    Abstract: In a network speaking for speaking with voice by exchanging voice packets 6 between a plurality of speaking terminals 3 connected with a communication network 2, a speaking quality monitoring unit 5 capable of computing speaking quality evaluation data is provided between the communication network and the speaking terminal, and the network speaking control unit 16 is provided with network speaking quality judging means 20, 22 for collecting speaking quality evaluation data computed by a plurality of the speaking quality monitoring units and computing and judging speaking quality of the communication network. The quality of the voice speaking exchanged between the speaking terminals can be judged without delay.
    Type: Application
    Filed: October 21, 2002
    Publication date: April 24, 2003
    Inventors: Yoshihiro Miwa, Koji Ohbayashi, Kazuhiro Kashiwagi