Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7640268 | Positional information management system, positional information management method, recording medium, and mobile terminal | Takashi Masuya, Shigeo Iwata | 2009-12-29 |
| RE32977 | Key-holding structure of keyboard with curved operating surface of keys | Satoshi Fukao, Makoto Suzuki | 1989-07-04 |
| 4528428 | Key-holding structure of keyboard with curved operating surface of keys | Satoshi Fukao, Makoto Suzuki | 1985-07-09 |