Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938964 | High frequency heating method of a bolt with hole | Katsuhiko Takita, Takayuki Kawano, Takijiro Shimamoto | 1999-08-17 |
| 5206811 | Navigation system for automotive vehicle | Toshiyuki Itoh, Hiroshi Tsuda, Kiyomichi Yamada, Katsuhiko Mizushima | 1993-04-27 |