Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6093832 | Diiminoisoindoline compound and the process for producing the compound and use thereof | Yojiro Kumagae, Toshihiro Masaoka, Shigeo Fujita | 2000-07-25 |
| 5973140 | Phthalocyanine compound, its intermediate, process for producing the compound, and use thereof | Yojiro Kumagae, Toshihiro Masaoka, Shigeo Fujita | 1999-10-26 |
| RE34480 | Naphthalocyanine compounds | — | 1993-12-14 |
| 4622179 | Naphthalocyanine compounds | — | 1986-11-11 |