Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6844105 | Plate shaped battery pack and portable radio terminal | Kiyoshi Hanafusa | 2005-01-18 |
| 6805992 | Battery and portable device | Kiyoshi Hanafusa | 2004-10-19 |
| 6630815 | Battery protective circuit with current-amount control circuit | Kiyoshi Hanafusa | 2003-10-07 |
| 6531246 | Plate-shaped battery and battery apparatus | Kiyoshi Hanafusa | 2003-03-11 |
| 6462515 | Cell protective circuit | Kiyoshi Hanafusa | 2002-10-08 |
| 5389925 | A/D and D/A conversion device with shared parameter generators | Tetsuaki Ohga, Takeshi Tokuda | 1995-02-14 |
| 5317529 | Digital filter using intermediate holding registers and common accumulators and multipliers | Eiichi Teraoka, Toru Kengaku | 1994-05-31 |
| 5191547 | Decimating digital finite impulse response filter | Koji Kawamoto, Toru Kengaku, Eiichi Teraoka, Tetsuaki Oga | 1993-03-02 |
| 5086441 | Frequency divider circuit | Kousei Maemura | 1992-02-04 |