Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5118952 | Patterned photo cathode and its fabrication method for electron image projection | Kiichi Sakamoto, Hiroshi Yasuda, Akio Yamada | 1992-06-02 |
| 5029222 | Photoelectron image projection apparatus | Akio Yamada, Hiroshi Yasuda, Kiichi Sakamoto | 1991-07-02 |
| 5023462 | Photo-cathode image projection apparatus for patterning a semiconductor device | Akio Yamada, Kiichi Sakamoto, Hiroshi Yasuda | 1991-06-11 |
| 4954717 | Photoelectron mask and photo cathode image projection method using the same | Kiichi Sakamoto, Hiroshi Yasuda, Akio Yamada | 1990-09-04 |