Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8844146 | Eyeglass frame shape measurement device | Yoshinori Matsuyama, Takayasu Yamamoto | 2014-09-30 |
| 5109958 | Brake unit for an elevator hoist apparatus | Kunio Kato, Takenobu Honda, Kazuhiko Sugita, Shinji Yamasaki | 1992-05-05 |
| 4600086 | Elevator hoist apparatus | Shinji Yamasaki, Yoshiki Sugiyama, Itsurou Tangiku | 1986-07-15 |