Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4656113 | Dye composition and use thereof | Hisashi Senshu, Takeshi Matsuyama, Yoji Kawagishi, Takuo Andoh, Takashi Kiryu | 1987-04-07 |
| 4568624 | Toner composition having a dye composition | Hisashi Senshu, Takeshi Matsuyama, Yoji Kawagishi, Takuo Andoh, Takashi Kiryu | 1986-02-04 |