Patents by Inventor Hiroyoshi Hayakawa

Hiroyoshi Hayakawa 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).

  • Combustion chamber component for an internal combustion engine having a water and oil repellent coating and process for formation of coating
    Patent number: 6257217
    Abstract: A combustion chamber component for an internal combustion engine has a water and oil repellent coating which has good adhesive power and in which the effect of suppressing the accumulation of deposits is well maintained. The coating is formed from an organosilicon compound represented by the formula Rf—R1—Si(NH)3/2 wherein Rf denotes a perfluoroalkyl group having 1 to 10 carbon atoms and R1 denotes a divalent hydrocarbon group having 2 to 10 carbon atoms.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: July 10, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideharu Yamazaki, Katsuhiko Kohyama, Yoshihiro Kuki, Masaaki Hasegawa, Hiroyoshi Hayakawa