Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D579758 | Sash lock | Naoki Yasuda, Yutaka Nakamura, Toshio Isono, Michizumi Ito, Yasuhito Hibi +3 more | 2008-11-04 |
| D539634 | Lock | Naoki Yasuda, Masashi SUGAWARA, Toru Kanai, Masaki Nomura | 2007-04-03 |