Patents by Inventor Masaki OHYAMA

Masaki OHYAMA 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).

  • Publication number: 20120080297
    Abstract: A keyboard apparatus is provided which allows the brightness of illumination within keytops to be improved. Keyboard apparatus 1 comprises membrane board 50 having contact points 511 and 521, holding plate 20 holding keytops 10 such that the keytops 10 are capable of approaching and leaving the membrane board 50 at a position facing the contact points 511 and 521, and light guide plate 40 having light guiding ability and guiding light to the keytops 10, and rubber domes 35 having light guiding ability and biasing the keytops 10 in a leaving direction from the membrane board 50, wherein the light guide plate 40 is located at a nearer side to the keytops 10 than the membrane board 50.
    Type: Application
    Filed: December 9, 2011
    Publication date: April 5, 2012
    Applicant: FUJIKURA LTD.
    Inventors: Eriko TAKEUCHI, Yasushi ONO, Masaki OHYAMA, Daisuke KAMEYAMA