Patents by Inventor Yoshimasa Hirano

Yoshimasa Hirano 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).

  • Method for aligning optical elements one another on V-groove substrate
    Patent number: 6052178
    Abstract: Aligning a plurality of optical elements on a substrate includes producing a plurality of recesses in the substrate so as to define a desired alignment and/or orientation between the optical elements when the optical elements are mounted to the substrate, producing a mounting for one of the optical elements on the substrate, and using one of the recesses as an alignment reference during the producing the mounting, so as to maintain the desired alignment and/or orientation The optical element may be a light emitter or a light detector.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: April 18, 2000
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Yoshimasa Hirano