Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6564075 | Wrist mobile information device | — | 2003-05-13 |
| 6528203 | Structure for a strap for portable electronic equipment | — | 2003-03-04 |
| 6426921 | Portable wrist device | — | 2002-07-30 |
| 6291760 | Thermoelectronic generating electronic device | — | 2001-09-18 |
| 6222114 | Portable wrist device | — | 2001-04-24 |
| 4509866 | Waterproof watchcase with multi-layered resin-coated glass | — | 1985-04-09 |
| 4447162 | Watchcase | Takao Eguchi, Yukio Nagami | 1984-05-08 |
| 4362401 | Watchcase | Takao Eguchi, Yukio Nagami | 1982-12-07 |