Patents by Inventor Taku Aoyama

Taku Aoyama 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).

  • Optical modulator device, display and electronic apparatus
    Patent number: 6094294
    Abstract: An optical modulator device, a display unit and an electronic apparatus, each capable of presenting a high-contrast and bright image. An optical modulator device 101 includes a substrate and, on the substrate, an optical modulator structure in which a piezoelectric thin film layer 13 having piezoelectric property is interposed between thin film electrode layers 12, 14 having electrically conductive property with at least one of the thin film electrode layers 12, 14 having light reflective property, wherein the optical modulator structure is driven on a mirror element by mirror element basis, with one mirror element 15 being handled as a unit working independently to modulate a light ray.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: July 25, 2000
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Yokoyama, Tatsuya Shimoda, Satoru Miyashita, Yuji Fujimori, Mitsuro Atobe, Taku Aoyama, Tatsuaki Funamoto
  • Contact lens and method of producing a contact lens
    Patent number: 5391589
    Abstract: A contact lens is made by graft polymerization of a contact lens surface by introducing a peroxide on a contact lens substrate surface by a discharging treatment producing a radical and by adding an appropriate amount of a reducing agent to the polymerization system and removing dissolved oxygen in the polymerization system by applying ultrasonic waves under reduced pressure.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: February 21, 1995
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Kiguchi, Taku Aoyama