Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847631 | Charge and deflection control type ink jet printer | Osamu Naruse, Sadao Kakeno, Satoshi Sekimoto, Masanori Horike | 1989-07-11 |
| 4800398 | Ink-jet printer with an encased printer head unit | Osamu Naruse, Sadao Kakeno, Kyuhachiro Iwasaki | 1989-01-24 |