Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12381505 | Rotating electrical machine control device | Subrata Saha, Takashi Kosaka, Hiroaki Matsumori | 2025-08-05 |
| 11979104 | Rotary electric machine control apparatus | Subrata Saha, Takashi Kosaka, Hiroaki Matsumori | 2024-05-07 |
| 11909342 | Rotating electrical machine control device | Subrata Saha, Takashi Kosaka, Hiroaki Matsumori, Naoto Saito, Yoshinobu Ito +1 more | 2024-02-20 |
| 9016128 | External force detecting method and external force detecting device | Mitsuaki Koyama, Takeru Mutoh | 2015-04-28 |
| 8966980 | External force detecting device and external force detecting sensor | Mitsuaki Koyama, Takeru Mutoh, Yoshiaki Amano, Ryoichi Ichikawa | 2015-03-03 |
| 8933615 | Tuning fork piezoelectric vibrator with clearance groove formed on the base side of the package | Shunsuke Ueno, Shingo Kawanishi | 2015-01-13 |
| 8919201 | Acceleration measuring apparatus | Mitsuaki Koyama, Takeru Mutoh, Ryoichi Ichikawa | 2014-12-30 |
| 8890391 | External force detection apparatus and external force detection sensor | Mitsuaki Koyama, Takeru Mutoh, Ryoichi Ichikawa | 2014-11-18 |
| 8736152 | Piezoelectric vibrating pieces and associated devices exhibiting enhanced electrical field | — | 2014-05-27 |
| 8729780 | Piezoelectric vibrating pieces and corresponding devices exhibiting reduced vibration leakage | — | 2014-05-20 |
| 8610338 | Tuning-fork type piezoelectric vibrating piece with enhanced frequency adjustment and piezoelectric device incorporating same | Ryoichi Ichikawa, Yoshiaki Amano | 2013-12-17 |
| 8525491 | Vehicle generator | — | 2013-09-03 |
| 8390180 | Surface mounted crystal resonator | — | 2013-03-05 |
| 8174171 | Piezoelectric vibrating devices having bisymmetric vibrating arms and supporting arms, and devices comprising same | — | 2012-05-08 |
| 8120234 | Piezoelectric frames and piezoelectric devices comprising same | — | 2012-02-21 |
| 8110966 | Piezoelectric frames and piezoelectric devices comprising same | — | 2012-02-07 |
| 8110965 | Piezoelectric devices having improved impact resistance | Yu Iwai, Hiroshi Uehara | 2012-02-07 |
| 7982374 | Piezoelectric vibrating piece with extended supporting arms | Masahiro Yoshimatsu | 2011-07-19 |