Patents by Inventor Masaharu Shimohata

Masaharu Shimohata 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).

  • Ignition coil
    Patent number: 6653922
    Abstract: An ignition coil includes a housing which contains a central core portion, an inner spool having a first winding, and an outer spool having a second winding. The inner spool extends outward of the central core portion. The outer spool extends outward of the inner spool. A locating member includes a locating rib adjacent to an upper portion of the central core portion. The locating rib is in a gap between the inner spool and the central core portion, and locates the inner spool and the central core portion relative to each other. Insulating resin injected into the housing provides insulation among parts in the housing. At least one of the inner spool and the locating member has a void-escape passage which connects the gap and an outside of the inner spool with each other, and which allows a void to escape from the injected insulating resin in the gap.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: November 25, 2003
    Assignee: Denso Corporation
    Inventors: Masafuyu Sano, Kazutoyo Osuka, Norihiro Adachi, Yoshihiro Shimoide, Osamu Sugie, Kaneo Buma, Katsunori Akimoto, Atsuyuki Konishi, Masaharu Shimohata, Yoshitaka Sato
  • Ignition coil
    Publication number: 20030076208
    Abstract: An ignition coil includes a housing which contains a central core portion, an inner spool having a first winding, and an outer spool having a second winding. The inner spool extends outward of the central core portion. The outer spool extends outward of the inner spool. A locating member includes a locating rib adjacent to an upper portion of the central core portion. The locating rib is in a gap between the inner spool and the central core portion, and locates the inner spool and the central core portion relative to each other. Insulating resin injected into the housing provides insulation among parts in the housing. At least one of the inner spool and the locating member has a void-escape passage which connects the gap and an outside of the inner spool with each other, and which allows a void to escape from the injected insulating resin in the gap.
    Type: Application
    Filed: June 27, 2002
    Publication date: April 24, 2003
    Inventors: Masafuyu Sano, Kazutoyo Osuka, Norihiro Adachi, Yoshihiro Shimoide, Osamu Sugie, Kaneo Buma, Katsunori Akimoto, Atsuyuki Konishi, Masaharu Shimohata, Yoshitaka Sato