Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9300205 | Power supply apparatus, power supply system and power supply method with an on/off operation of supplying power | — | 2016-03-29 |
| 9263946 | Power supply apparatus, power supply system and power supply method | — | 2016-02-16 |
| 9128160 | Battery fuel gauge circuit | Kimio Ando, Isao Yamamoto | 2015-09-08 |
| 8018263 | Pulse generating circuit and pulse width modulator | — | 2011-09-13 |
| 6967469 | Battery charging method, battery charging circuit, and portable electronic device having a battery | Isao Yamamoto, Tetsuro Hashimoto, Hiroyuki Ishikawa | 2005-11-22 |