Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4617367 | Methyl methacrylate syrup composition | Katsushi Watanabe, Taisaku Kano, Koichi Hirai, Yoshinobu Ichihara | 1986-10-14 |
| 4548617 | Abrasive and method for manufacturing the same | Takashi Miyatani, Junji Nakata, Kisuke Seki | 1985-10-22 |