Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9400028 | Hydraulic pressure spring and method of manufacturing the same | Go Tanaka | 2016-07-26 |
| 9062732 | Hydraulic pressure spring and method of manufacturing the same | Go Tanaka | 2015-06-23 |
| 8291739 | Trimming press working apparatus | Tadashi Sasahara, Hideki Kiriaki | 2012-10-23 |