Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11335363 | Tonearm device and reproduction device | Masayuki Shiwa | 2022-05-17 |
| 10789974 | Tonearm unit and playback device | Takaaki Kumazawa, Takeru SAKAMOTO | 2020-09-29 |
| 8445151 | Fuel cell system and method for controlling the same | Tomohisa KAMIYAMA, Nobutaka Nakajima, Koichiro Miyata | 2013-05-21 |