Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4609928 | Thermosensitive image transfer medium | Keishi Kubo, Nobuhiro Takigawa | 1986-09-02 |
| 4538164 | Heat-sensitive transfer medium | Nobuhiro Takigawa, Hideo Watanabe, Kanzirou Kawasaki, Keishi Kubo, Minoru Hakiri | 1985-08-27 |
| 4534569 | Stern tube seal device providing a seal about a rotatable shaft | Kenichiro Ishitani, Takashi Unseki, Saburo Amiboshi | 1985-08-13 |
| 4513052 | Heat-sensitive recording material | Keishi Kubo | 1985-04-23 |
| 4482158 | Stern tube seal device | Kenichiro Ishitani, Toshiharu Hamasaki, Shoji Shiomi | 1984-11-13 |
| 4482159 | Stern tube seal device | Kenichiro Ishitani | 1984-11-13 |
| 4352860 | Thermosensitive recording material | Keishi Kubo | 1982-10-05 |