Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12388226 | Lead block and rotary connector device | Takahisa KAKUDO, Shinichi Hamasaki, Yoji TAJIRI | 2025-08-12 |
| 12374846 | Rotary connector device | Shinichi Hamasaki, Takahisa KAKUDO, Yoji TAJIRI | 2025-07-29 |
| 10199786 | Rotary connector device | Hirofumi Utsunomiya, Masatoshi Ushiyama, Tomoki Kawamura | 2019-02-05 |
| 9784643 | Optical fiber property measuring device and optical fiber property measuring method | Kazuo Hotate, Zuyuan He | 2017-10-10 |