Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6847326 | GPS device for measuring wave height and current direction and speed and GPS system for measuring wave height and current direction and speed | Isao Yamaguchi, Tokio Kasai | 2005-01-25 |
| 5440491 | Pseudo GPS signal transmitting system in a base station | Shuichi Kawano | 1995-08-08 |
| 5153599 | Clock test apparatus for electronic device | Masaru Oka | 1992-10-06 |
| 4944587 | Star sensor | — | 1990-07-31 |