Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8545156 | Screw tightening structure, screw and screw tightening tool | Akihiro Kageyama | 2013-10-01 |
| 6997085 | Threaded-fastener wrenching structure, threaded fastener and wrenching tool | — | 2006-02-14 |
| 5173353 | Air venting belt for retreading tires | — | 1992-12-22 |
| 4996892 | Flywheel assembly | — | 1991-03-05 |