Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8702891 | Method for manufacturing glass-sealed package, apparatus for manufacturing glass-sealed package, and oscillator | — | 2014-04-22 |
| 8656740 | Manufacturing method of glass-sealed package, and glass substrate | — | 2014-02-25 |
| 8448312 | Method of manufacturing packages, package, piezoelectric, vibrator, and oscillator | — | 2013-05-28 |
| 8405359 | Battery protection IC and battery device | Atsushi Sakurai, Takakazu Ozawa, Kiyoshi Yoshikawa | 2013-03-26 |
| 8179099 | Battery state monitoring circuit and battery device | — | 2012-05-15 |
| 8058845 | Battery state monitoring circuit and battery apparatus | Atsushi Sakurai, Takakazu Ozawa, Kiyoshi Yoshikawa | 2011-11-15 |
| 7990669 | Battery protection circuit and battery device | Kiyoshi Yoshikawa, Atsushi Sakurai, Toshiyuki Koike, Kazuaki Sano | 2011-08-02 |
| 7923968 | Charge and discharge control circuit and rechargeable power supply device | Kazuaki Sano, Kiyoshi Yoshikawa, Toshiyuki Koike, Atsushi Sakurai | 2011-04-12 |
| 6605925 | Power source circuit | Tsutomu Ando | 2003-08-12 |