Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406321 | Auxiliary structure for connecting connector for use in portable telephone | Masahiko Hayashi, Yukio Tsukakoshi | 2002-06-18 |
| 5982911 | Braille recognition system | Kiyoshi Matsumoto, Naotaka Yasuda | 1999-11-09 |
| 4439850 | Record player | Ichiro Takahara | 1984-03-27 |