Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10157758 | Work heating device and work treatment device | Yoshiaki Tatsumi, Yasuyuki Temma, Toshifumi Sugawara | 2018-12-18 |
| 9634582 | Detachable generator device | Yoshiaki Tatsumi, Hiroyuki Moriyama, Toshifumi Sugawara | 2017-04-25 |
| 8690997 | Two-sided attraction structure, exhibiting or indicating apparatus using same, dust collecting apparatus, and plant growing apparatus | Yoshiaki Tatsumi, Hiroshi Fujisawa | 2014-04-08 |