Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5859237 | Process for the production of phthalocyanine pigment | Hideko Noguchi, Mikio Hayashi | 1999-01-12 |
| 5610306 | Process for the production of 6,13-dihydroquinacridones and apparatus for use for the production | Hitoshi Maki, Shigeki Kato, Shinichi Azuma, Mikio Hayashi | 1997-03-11 |