Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7737663 | Charging and discharging control circuit and charging type power supply device | Atsushi Sakurai, Kazuaki Sano | 2010-06-15 |
| 7719235 | Charge/discharge protection circuit and power-supply unit | Kazuaki Sano, Atsushi Sakurai | 2010-05-18 |
| 7550947 | Battery state monitoring circuit and battery device | Atsushi Sakurai, Kazuaki Sano | 2009-06-23 |
| 7548627 | Speaker, and module, electronic apparatus, and device that use the speaker | Tomoyasu Takase, Masanori Nakano, Masahide Sumiyama, Hiroshi Yano, Kazutaka Kubo +6 more | 2009-06-16 |
| D561170 | Passive radiator | — | 2008-02-05 |
| D558734 | Speaker box | — | 2008-01-01 |
| 6949023 | Game machine and information storage medium | Hiroshi Okubo, Yutaka Ito, Tetsukazu Nakanishi | 2005-09-27 |
| 6725436 | Resistor circuit | Yoshihide Kanakubo, Minoru Ariyama | 2004-04-20 |
| 6650329 | Game system and program | — | 2003-11-18 |
| 5880965 | Method of controlling a sheet metal machining line and apparatus for controlling the same | Kaoru Nakamura, Nobuaki Tamura | 1999-03-09 |