Patents by Inventor Sinichiro Tugimura

Sinichiro Tugimura 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).

  • Outer blade of electric shavers
    Patent number: 4343089
    Abstract: An outer blade for electric shavers having hair inlet apertures the peripheral side wall of respective which is undulated including cove-like retreating parts and headland-like projecting parts, and the projecting parts are sloped at a smaller angle of inclination than that of the retreating parts for positive raise and introduction specifically of long hair into the apertures.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: August 10, 1982
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Tadashi Suzuki, Sinichiro Tugimura