Patents by Inventor Worachai Jaitham

Worachai Jaitham 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).

  • Blade drive device and optical device
    Patent number: 8254008
    Abstract: A blade drive device includes: a board including an optical path opening; first and second blades cooperatively defining an amount of light passing through the optical path opening to a given amount of light. The first blade includes a first opening. The second blade includes: a first cutout portion defining the amount of light in cooperation with the first opening; and a second cutout portion defining the amount of light in cooperation with the first opening. The second cutout portion overlaps the first blade when the first cutout portion and the first opening cooperatively define the amount of light.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 28, 2012
    Assignee: Seiko Precision Inc.
    Inventors: Worachai Jaitham, Prapas Charoensilputthakun
  • BLADE DRIVE DEVICE AND OPTICAL DEVICE
    Publication number: 20110164298
    Abstract: A blade drive device includes: a board including an optical path opening; first and second blades cooperatively defining an amount of light passing through the optical path opening to a given amount of light. The first blade includes a first opening. The second blade includes: a first cutout portion defining the amount of light in corporation with the first opening; and a second cutout portion defining the amount of light in corporation with the first opening. The second cutout portion overlaps the first blade when the first cutout portion and the first opening cooperatively define the amount of light.
    Type: Application
    Filed: March 11, 2011
    Publication date: July 7, 2011
    Applicant: SEIKO PRECISION INC.
    Inventors: Worachai Jaitham, Prapas Charoensilputthakun