Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5168917 | Casting of dental metals | Norio Kojima, Kenichi Iiyama, Yoshinobu Yamamura, Yasutaro Ito, Shohei Hayashi | 1992-12-08 |
| 5168918 | Casting of dental metals | Norio Kojima, Kenichi Iiyama, Yoshinobu Yamamura, Yasutaro Ito, Shohei Hayashi | 1992-12-08 |
| 4830616 | Method for bonding composite resin to dentin | Masashi Komatsu, Shin Asanuma, Noriko Hiratsuka | 1989-05-16 |