Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5897810 | Coagulating agent for wastewater | Yutaka Tamaura | 1999-04-27 |
| 4656113 | Dye composition and use thereof | Tetsuya Ohshima, Hisashi Senshu, Takeshi Matsuyama, Yoji Kawagishi, Takuo Andoh | 1987-04-07 |
| 4568624 | Toner composition having a dye composition | Tetsuya Ohshima, Hisashi Senshu, Takeshi Matsuyama, Yoji Kawagishi, Takuo Andoh | 1986-02-04 |