Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8684334 | Tension transmitting device | Susumu Nago, Yasunori Noda, Naohiro Hirayama, Masaru Kuraishi | 2014-04-01 |
| 6802608 | Low vision measuring instrument | Masao Yoshikawa | 2004-10-12 |