Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6047533 | Spinning ring | — | 2000-04-11 |
| 5970698 | Rotary spinning ring structure | Yutaka Tanaka, Hiroshi Enomoto, Teruhiko Sato, Ryoji Asakawa, Koji Okada +1 more | 1999-10-26 |
| 5918454 | Spinning ring structure with an aerodynamic brake member | Yutaka Tanaka, Hiroshi Enomoto, Hideyuki Goto | 1999-07-06 |
| 5881546 | Spinning ring | — | 1999-03-16 |
| 5829239 | Spinning ring structure | Yutaka Tanaka, Hiroshi Enomoto, Hideyuki Goto | 1998-11-03 |
| 5819519 | Spinning ring | — | 1998-10-13 |