Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37443 | Electric powered bicycle | — | 2001-11-13 |
| 6290828 | Circuit for measuring oxygen concentration | — | 2001-09-18 |
| 6190039 | Heated type sensor with auxiliary heater in bridge circuit for maintaining constant sensor temperature | — | 2001-02-20 |
| 5603388 | Electric powered bicycle | — | 1997-02-18 |
| 5602448 | Electric powered bicycle | — | 1997-02-11 |
| 5537012 | DC motor control circuit and DC motor | — | 1996-07-16 |
| 5396118 | Pressure detector circuit | — | 1995-03-07 |
| 5220634 | Control circuit for a DC motor | Mitsunori Arakawa | 1993-06-15 |
| 5166586 | Automatic window/door system | — | 1992-11-24 |
| 5051672 | Automatic window/door system | — | 1991-09-24 |
| 4970446 | Motor-powered opening/closing apparatus for a window or door | — | 1990-11-13 |