Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5260153 | Aperture pattern printing plate | Yasuhisa Ohtake, Yasushi Magaki, Mitsuaki Yamazaki, Hiroshi Tanaka | 1993-11-09 |
| 5128224 | Method of manufacturing an aperture pattern printing plate | Yasuhisa Ohtake, Yasushi Magaki, Mitsuaki Yamazaki, Hiroshi Tanaka | 1992-07-07 |
| 5006432 | Method for manufacturing a shadow mask | Yasuhisa Ohtake | 1991-04-09 |
| 4960659 | Method for preparing a shadow mask for a color picture tube | — | 1990-10-02 |
| 4772345 | Method and apparatus for manufacturing phosphor screen | Takeo Itou | 1988-09-20 |
| 4732828 | Method for forming a phosphor screen of a cathode ray tube | Takeo Itou | 1988-03-22 |
| 4687825 | Method of manufacturing phosphor screen of cathode ray tube | Takeo Itou | 1987-08-18 |