Patents by Inventor Michihiro Yamane

Michihiro Yamane 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).

  • Blowby gas circulating apparatus for an internal combustion engine
    Patent number: 6880538
    Abstract: An apparatus for circulating a blowby gas to engine cylinders in an internal combustion engine, including a cylinder head cover including a first wall defining a first passage, and a first flange outwardly extending from the first wall, and a cylinder head including a second wall and a second flange cooperating with the first flange to form an abutting surface therebetween on which a second passage is arranged. The second passage is connected with the first passage and extending in a direction of a row of the engine cylinders. The second wall defines a plurality of third passages each having one end that is open to the second flange and communicated with the second passage and an opposite end open to an intake port of each of the engine cylinders.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: April 19, 2005
    Assignees: Nissan Motor Co., Ltd., Aichi Machine Industry Co., Ltd., Renault s.a.s. societe par actions simplifiee
    Inventors: Takashi Ishizuka, Michihiro Yamane, Norio Ito, Takashi Satake, Munehiro Sagata
  • Blowby gas circulating apparatus for an internal combustion engine
    Publication number: 20040159314
    Abstract: An apparatus for circulating a blowby gas to engine cylinders in an internal combustion engine, including a cylinder head cover including a first wall defining a first passage, and a first flange outwardly extending from the first wall, and a cylinder head including a second wall and a second flange cooperating with the first flange to form an abutting surface therebetween on which a second passage is arranged. The second passage is connected with the first passage and extending in a direction of a row of the engine cylinders. The second wall defines a plurality of third passages each having one end that is open to the second flange and communicated with the second passage and an opposite end open to an intake port of each of the engine cylinders.
    Type: Application
    Filed: February 11, 2004
    Publication date: August 19, 2004
    Applicants: NISSAN MOTOR CO., LTD., AICHI MACHINE INDUSTRY CO., LTD., RENAULT s.a.s. societe par actions simplifiee
    Inventors: Takashi Ishizuka, Michihiro Yamane, Norio Ito, Takashi Satake, Munehiro Sagata
  • Compression ratio control for internal combustion engine
    Patent number: 5450824
    Abstract: An internal combustion engine has an intake valve and an exhaust valve. When the engine operates at low speed with low and medium load, the intake valve is operated to close at a relatively advanced timing for increased volumetric effeciency and increased real compression ratio. When the engine operates at low speeds with high load, the exhaust valve is operated to close at a relatively retarded timing with the intake valve being operated to close at the relatively advanced timing, whereby the volumetric efficiency is subject to a drop to prevent occurrence of knocking.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: September 19, 1995
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Michihiro Yamane, Akinobu Yoshibe, Shuichi Nishimura