Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12055179 | Ball socket structure | Tomoyasu SHIROYA | 2024-08-06 |
| 11898650 | Pressure-reducing valve, valve unit, valve device, and leaf spring | Yoshiteru FUJIMOTO, Masayoshi Okamoto, Masataka HIGASHIURA, Masataka SHIRASAWA, Tsutomu Tomita | 2024-02-13 |
| 10601283 | Vertical bearing device | Kwangik Na, Motohira Yamada | 2020-03-24 |
| 10400821 | Vertical bearing device | Kwangik Na, Tadatoshi Nagasaki | 2019-09-03 |
| 10323690 | Vertical bearing device | Kwangik Na | 2019-06-18 |
| 8106560 | Stiffness of brushless motor including stator core and disk drive | — | 2012-01-31 |
| 7118233 | Polygon mirror drive motor | — | 2006-10-10 |
| 5394102 | Non-repeatable run-out measuring instrument using encoder signals based upon the back EMF of a motor as trigger signals | Ryuji Mizuguchi | 1995-02-28 |