Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886857 | Styrene based resin composition | Masanori Ota, Fumio Akutsu | 1989-12-12 |
| H711 | Exposure device | Kiyoshi Harada, Mikio Kawasaki | 1989-11-07 |
| 4874954 | Projection exposure apparatus | Hiroyoshi Kubo | 1989-10-17 |
| 4874999 | Automatic control system | Takao Kuwabara | 1989-10-17 |
| 4869481 | Plate-like article holding device | Shuichi Yabu, Yukio Yamane | 1989-09-26 |
| 4865852 | Additive for stock feeds, stock feed containing additive, and process for preparation of additive | Hiroaki Tamatani, Kazuo Sato, Kiyoshi Mizushima, Fuminobu Yoshimi, Sohei Morita | 1989-09-12 |
| 4843563 | Step-and-repeat alignment and exposure method and apparatus | Masao Kosugi | 1989-06-27 |
| 4825247 | Projection exposure apparatus | Ryuichi Kemi, Itaru Fujita | 1989-04-25 |
| 4797644 | Processing head for electrophotographic apparatus | — | 1989-01-10 |