Patents by Inventor Hiromitsu Ochiai

Hiromitsu Ochiai 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).

  • Shadow mask, plate member therefor and method of manufacturing shadow mask
    Patent number: 6722938
    Abstract: A shadow mask is formed from a plate member comprising an outer frame portion, a body portion of a shadow mask having an outer peripheral line formed through an etching process and a plurality of connection portions through which the body portion of the shadow mask is supported by the outer frame portion. The shadow mask is formed from the plate member by removing the outer frame portion from the body portion of the shadow mask. In this process, a break portion is formed to the shadow mask by removing the outer frame portion so as to be recessed inward from the outer peripheral line of the shadow mask.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: April 20, 2004
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takayasu Komatsu, Hiromitsu Ochiai, Akira Makita, Hirofumi Hideshima, Takuya Ogio, Toshimu Watanabe