Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683846 | Electrophotographic developer having a specific voltage-dependant index | Kiyofumi Nakatsu | 1997-11-04 |
| 5613714 | Separation-preventive pipe joint | Toshio Toshima, Takashi Yokomizo | 1997-03-25 |
| 5609368 | Separation preventive pipe joint | Atsushi Maki, Toshio Toshima | 1997-03-11 |