Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882246 | Method for supplementing replenisher for developer in automatic developing machine for presensitized plate | Hisao Ohba, Kenji Kunichika | 1989-11-21 |
| 4841320 | Developing device for photosensitive material | Hisao Ohba, Kenji Kunichika | 1989-06-20 |