Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11736089 | Quartz crystal resonator unit and method of manufacturing the same | Hiroaki Kaida | 2023-08-22 |
| 11309864 | Piezoelectric resonator unit and method for manufacturing the piezoelectric resonator unit | Ryuichi Kawai | 2022-04-19 |
| 10476475 | Piezoelectric resonator unit and manufacturing method for the same | Ryuichi Kawai | 2019-11-12 |
| 10135420 | Quartz crystal blank and quartz crystal resonator unit | Hiroyuki Yamamoto, Ryuichi Kawai | 2018-11-20 |
| 9985604 | Quartz crystal blank and quartz crystal resonator unit | Hiroyuki Yamamoto, Ryuichi Kawai | 2018-05-29 |
| 9887559 | Power feeding device and power receiving device for contactless power transmission | — | 2018-02-06 |
| 9871385 | Power feeding device and power receiving device for contactless power transmission | — | 2018-01-16 |
| 7605352 | Method for sorting positive temperature coefficient (PTC) elements | Yoshitaka Nagao, Yutaka Ikeda, Kazuto Miyagawa, Yoshiaki Abe | 2009-10-20 |