Patents by Inventor Jiro Kumagae

Jiro Kumagae 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).

  • Electric device sealing structure
    Patent number: 6496090
    Abstract: Casing 5 is formed with a recess 67 toward an internal space in which the internal components are not located. The recess 67 is formed with a gate portion 69 as a resin inlet for forming the casing 5, and a bleeder portion 68 which is opened during a sealing operation and then sealed.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: December 17, 2002
    Assignee: Omron Corporation
    Inventors: Takeshi Nishida, Takashi Asao, Jiro Kumagae, Masanori Nakamura