Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5594090 | Alkylene sulfide group-containing prepolymer, polymerizable composition and optical material | Tsuyoshi Miyazaki, Hiromitsu Nakajima, Shuji Ichikawa, Yasumi Koinuma, Kazuo Matsuyama +1 more | 1997-01-14 |
| 4824876 | Light curable dental liquid or paste | Takeo Matsumoto, Eiichi Yamada, Osamu Nakachi, Godo Irukayama | 1989-04-25 |