Patents by Inventor Kazuhiro OKINO

Kazuhiro OKINO 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).

  • Cooling device of water-cooled engine and method of manufacturing the same
    Patent number: 8776735
    Abstract: An intake-side space around intake ports and an exhaust-side lower space around exhaust ports are provided in a main cooling jacket portion. These spaces are connected to each other. In a sub cooling jacket portion, an exhaust-side upper space is provided at a level above the exhaust-side lower space. The main cooling jacket portion and the sub cooling jacket portion are connected to each other via a cylindrical-hole connecting passage extending vertically and separate from each other vertically via a wall portion in another area than the connecting passage. Accordingly, a cooling device of an engine which can restrain the exhaust gas from being cooled too much improperly is provided.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: July 15, 2014
    Assignee: Mazda Corporation
    Inventors: Kazuhiro Kosugi, Yasushi Nakahara, Daijirou Ishimoto, Minori Fujino, Kazuhiro Okino
  • COOLING DEVICE OF WATER-COOLED ENGINE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20110315098
    Abstract: An intake-side space around intake ports and an exhaust-side lower space around exhaust ports are provided in a main cooling jacket portion. These spaces are connected to each other. In a sub cooling jacket portion, an exhaust-side upper space is provided at a level above the exhaust-side lower space. The main cooling jacket portion and the sub cooling jacket portion are connected to each other via a cylindrical-hole connecting passage extending vertically and separate from each other vertically via a wall portion in another area than the connecting passage. Accordingly, a cooling device of an engine which can restrain the exhaust gas from being cooled too much improperly is provided.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 29, 2011
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kazuhiro KOSUGI, Yasushi NAKAHARA, Daijirou ISHIMOTO, Minori FUJINO, Kazuhiro OKINO