Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320186 | Electrographic method for preparing original for projection and transfer film for use in method | Mamoru Kato, Tatsuo Aizawa | 1982-03-16 |
| 4314018 | Cleaning process for an electrostatic copying apparatus | Toshikazu Matsui, Toshimitsu Ikeda, Nobuhiko Kozuka, Hitoshi Nishihama, Tatsuo Aizawa | 1982-02-02 |