Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7141755 | Accelerated weathering test method | Masahiko Akahori, Tetsurou Kajino, Minoru Umino, Rie Tomita, Yasuhiro Shibata | 2006-11-28 |
| 4735984 | Composition containing dispersed pigment and preparation method thereof | Hisao Kato, Hiroyoshi Kataoka | 1988-04-05 |