Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10887702 | Loudspeaker | Takao Ishikawa, Fumiaki Nakashima | 2021-01-05 |
| 8931511 | Valve device and failure detector of hydraulic circuit | Naoki Yajima, Tatsuhiro Tomari | 2015-01-13 |
| 8733731 | Valve device | Tatsuhiro Tomari | 2014-05-27 |
| 6626368 | Water veil device | Yasuki Nakayama | 2003-09-30 |
| 4805680 | Card case with a magnifying glass | — | 1989-02-21 |
| 4769259 | Method for preventing fogging of surfaces | — | 1988-09-06 |