Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308560 | Hermetic terminal and tank valve device including same | Masayoshi Okamoto, Makoto Ninomiya, Yoshiteru FUJIMOTO | 2025-05-20 |
| D714266 | Microphone | Shuichi Okamura | 2014-09-30 |