Patents by Inventor Hironobu Chiba

Hironobu Chiba 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: 5647966
    Abstract: A method for producing a conductive pattern includes the steps of forming a mask layer on a conductive base plate, the mask layer having a pattern defining an exposed area of the conductive base plate; forming a conductive pattern on the exposed area of the conductive base plate by electroforming using a plating liquid which substantially maintains the pattern of the mask layer; and transferring the conductive pattern onto a support layer without removing the mask layer.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: July 15, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiichi Uriu, Osamu Makino, Hironobu Chiba, Chisa Yokota
  • Patent number: 5014817
    Abstract: An engine exhaust apparatus in which an exhaust passageway of the engine is provided with a plurality of sound deadening passsages. One common exhaust passageway from the engine is branched into first and second exhaust passageways. Each of the first and second exhaust passageways has a silencer or muffler including first and second exhaust outlet tubes with a shift valve mounted in one of these exhaust outlet tubes. A control unit controls the shift valves to close both when engine speed is in a low region, to open one of them when engine speed is in a medium region and to open both when engine speed is in a high region.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: May 14, 1991
    Assignee: Mazda Motor Corporation
    Inventors: Koji Takato, Hironobu Chiba