Patents by Inventor Hiroyuki Chado

Hiroyuki Chado 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: 5273014
    Abstract: An intake system for a multiple-cylinder engine a plurality of primary discrete intake passages and a plurality of secondary discrete intake passages. Each pair of primary discrete intake passage and the secondary discrete intake passage communicate with one of the cylinders. Both the primary and secondary discrete intake passages are straight and the primary discrete intake passage is provided with a primary valve member which is provided with an opening and is selectively positioned in a closed position where the primary valve member limits the effective cross-sectional area of the primary discrete intake passage to the cross-sectional area of the opening and in an open position where the primary valve member wide opens the primary intake passage.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: December 28, 1993
    Assignee: Mazda Motor Corporation
    Inventors: Noriaki Mitobe, Masaki Harada, Kouichirou Waki, Takuro Shigemura, Isao Shimizu, Isamu Iguchi, Masatoshi Shoji, Masaru Shimada, Hiroyuki Chado
  • Patent number: 4875733
    Abstract: A vehicle rear body structure including a rear side panel assembly comprising a rear inner panel made of a steel sheet and a rear fender made of a plastic material. The rear inner panel is formed at a lower portion with a tire house section. A tire house reinforcement of a closed cross section is formed along the tire house section and contiguous with a belt line reinforcement of a closed cross section formed along an upper edge portion of the rear inner panel. The tire house reinforcement and the belt line reinforcement are also contiguous with a center pillar structure of a closed cross section.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: October 24, 1989
    Assignee: Mazda Motor Corporation
    Inventors: Hiroyuki Chado, Tatsuo Maeda, Mitsusou Nakano