Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7560218 | Process for preparing toner | Shinichiro Omatsu | 2009-07-14 |
| 4933506 | Process for the production of dihydric phenols | Takao Ogino, Masayuki Takeda, Masaru Kaya | 1990-06-12 |