Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11539248 | Wireless power transmitter apparatus capable of determining pairing of wireless power transmitter apparatuses and wireless power receiver apparatuses and transmitting sufficient power | Akito Murai, Tetsuya Nosaka | 2022-12-27 |
| 11313907 | Arc discharge detection device | Katsuya Marumo, Yasushi Kawashima, Hajime Umeki, Keisuke Yano | 2022-04-26 |
| 10756771 | Wireless switch | Katsuya Marumo, Yasushi Kawashima, Hajime Umeki, Keisuke Yano | 2020-08-25 |
| 10547396 | State display apparatus, state display system, and radio transmission apparatus | Soji Ohmae, Hajime Umeki, Yasushi Kawashima, Hiroshi Okabe | 2020-01-28 |
| 10453634 | Power generation apparatus and wireless switch | Katsuya Marumo, Ken Tamura, Kazuyuki Tsukimori, Hiroshi Shiino, Yasushi Kawashima +2 more | 2019-10-22 |
| 10304639 | Wireless switch | Katsuya Marumo, Ken Tamura, Kazuyuki Tsukimori, Hiroshi Shiino, Yasushi Kawashima +2 more | 2019-05-28 |