Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641682 | Method for manufacturing an aperture grill material for color picture tube | Takahiko MIYAZAKI, Susumu Shigemasa, Yasuo Tahara | 2003-11-04 |
| 6617776 | Color picture tube shadow mask material | Takahiko MIYAZAKI, Susumu Sigemasa, Yasuo Tahara, Hironao Okayama | 2003-09-09 |
| 6583545 | Aperture grill material for color picture tube, production method thereof, aperture grill and picture tube | Hironao Okayama, Susumu Sigemasa, Yasuo Tahara | 2003-06-24 |