Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9680303 | Power storage system and power source system | Fumikazu Takahashi, Yoshihide Takahashi, Yusuke Katsuyama, Kimiaki Taniguchi, Akinori Uchida +1 more | 2017-06-13 |
| 8564992 | Power factor correction device and method with off time prediction for critical mode operation | Fumikazu Takahashi, Yen-Shin Lai | 2013-10-22 |
| 7923980 | Digital controlled power supply | Fumikazu Takahashi | 2011-04-12 |
| 7880440 | Switching power supply | Fumikazu Takahashi, Akihiko Kanouda, Yoshihide Takahashi | 2011-02-01 |
| 7840840 | DC backup power supply system, a disk array and a DC backup power supply | Fumikazu Takahashi, Minehiro Nemoto, Akihiko Kanouda, Yoshihide Takahashi | 2010-11-23 |
| 7812575 | Bidirectional DC-DC converter and power supply apparatus with the same | Takae Shimada, Hiroyuki Shoji, Kimiaki Taniguchi | 2010-10-12 |
| 7705562 | Switching power supply unit and disk array system | Fumikazu Takahashi, Akihiko Kanouda, Kuniyoshi Watanabe, Yoshihide Takahashi | 2010-04-27 |
| 7589436 | Data processing unit and DC backup power supply | Fumikazu Takahashi, Akihiko Kanouda, Yoshihide Takahashi | 2009-09-15 |
| 7495415 | DC backup power supply system | Akihiko Kanouda, Minehiro Nemoto, Fumikazu Takahashi, Yoshihide Takahashi, Takashi Tanabe +3 more | 2009-02-24 |
| 7432617 | Uninterruptible power system | Akihiko Kanouda, Fumikazu Takahashi, Minehiro Nemoto | 2008-10-07 |
| 7406623 | DC backup power supply system and disk array using same | Fumikazu Takahashi, Akihiko Kanouda, Yoshihide Takahashi, Minehiro Nemoto | 2008-07-29 |
| 7245469 | DC backup power supply device and method for diagnosing the same | Minehiro Nemoto, Akihiko Kanouda, Fumikazu Takahashi, Yoshihide Takahashi, Takashi Tanabe +3 more | 2007-07-17 |
| 7049711 | Uninterruptible power system | Akihiko Kanouda, Fumikazu Takahashi, Minehiro Nemoto | 2006-05-23 |
| 6738270 | Parallel power source system | Ryohei Saga, Norikazu Tokunaga | 2004-05-18 |