Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5074086 | Damping device in a structure and damping construction and damping method using those devices | Hidetoshi Yoshida, Eiji Tatsumi, Shinichi Akao, Hideyuki Kosaka | 1991-12-24 |
| 4987710 | Damping device in a structure and damping construction and damping method using those devices | Hidetoshi Yoshida, Eiji Tatsumi, Shinichi Akao, Hideyuki Kosaka | 1991-01-29 |
| 4987711 | Damping device in a structure and damping construction and damping method using those devices | Hidetoshi Yoshida, Eiji Tatsumi, Shinichi Akao, Hideyuki Kosaka | 1991-01-29 |
| 4972636 | Damping device in a structure | Hidetoshi Yoshida, Eiji Tatsumi | 1990-11-27 |
| 4953330 | Damping device in a structure and damping construction and damping method using those devices | Hidetoshi Yoshida, Eiji Tatsumi, Shinichi Akao, Hideyuki Kosaka | 1990-09-04 |
| 4951441 | Damping device in a structure and damping construction and damping method using those devices | Hidetoshi Yoshida, Eiji Tatsumi, Shinichi Akao, Hideyuki Kosaka | 1990-08-28 |