Patents by Inventor Keisuke Awazu

Keisuke Awazu 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: 5281176
    Abstract: A contact member according to the invention effectively controls the production of sparks even at a high current, has a simple structure and is appropriate for use as a small contact brush as in a micromotor. A method of manufacturing a strip material for producing the contact member, the strip material being provided with a surface metal layer having a desired configuration which can be easily manufactured continuously, precisely and in large quantities with a high yield of contact members. Each of the contact members comprises a metal base plate and a sintered metal layer formed on a surface of the metal base plate. The contact member is cut from the strip material, which is manufactured by first printing a metal paste on desired positions on a metal base strip and then sintering the metal paste. The sintered metal layer is firmly joined to the metal base strip by diffusion bonding.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: January 25, 1994
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventors: Shinichiro Yahagi, Keisuke Awazu, Osamu Kato, Takayoshi Shimizu, Tamotsu Nishinakagawa