Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884081 | Magnetic ink and method of printing | Katsumori Takei, Kohei Iwamoto, Hiroto Nakamura | 1989-11-28 |
| 4801652 | Heat shrinkable film | Tomoji Mizutani, Hideo Isozaki, Makoto Hirata | 1989-01-31 |