Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12412806 | Elastic member and elastic device | Yasuhiro Mitsui, Tomohiko Chosa | 2025-09-09 |
| 12139949 | Hinge | Yasuhiro Mitsui | 2024-11-12 |
| 12135068 | Hollow spring and method of manufacturing the same | Hironobu Sayama | 2024-11-05 |
| 9770957 | Suspension coil spring and strut type suspension | Masanori Sano, Hironobu Sayama | 2017-09-26 |
| 9316280 | Spring unit and slide mechanism | Yasuhiro Mitsui | 2016-04-19 |
| 9243676 | Spring unit and slide mechanism | Yasuhiro Mitsui | 2016-01-26 |
| 9142883 | Film-like member and attaching method thereof | Yukihisa Koyanagi | 2015-09-22 |
| 9004464 | Curved spring and slide mechanism | Yuji Hazama, Kentaro NAGASAWA | 2015-04-14 |