Patents by Inventor Seiji Ootsubo

Seiji Ootsubo 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).

  • Oil level gauge
    Patent number: 7191542
    Abstract: An oil level gauge includes a handle section, a shank section, and a measuring section. The measuring section includes an upper limit mark and a lower limit mark in an up and down direction. The measuring section has a curved shape in a direction perpendicular to a longitudinal direction of the measuring section.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: March 20, 2007
    Assignee: Piolax, Inc.
    Inventors: Kenji Oyama, Seiji Ootsubo
  • Oil level gauge
    Publication number: 20050241171
    Abstract: An oil level gauge includes a handle section, a shank section, and a measuring section. The measuring section includes an upper limit mark and a lower limit mark in an up and down direction. The measuring section has a curved shape in a direction perpendicular to a longitudinal direction of the measuring section.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 3, 2005
    Applicant: Piolax Inc.
    Inventors: Kenji Oyama, Seiji Ootsubo