Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11178493 | Electroacoustic transducer | Hidetoshi Hiraoka, Yoshinobu Tsujii, Keita Sakakibara | 2021-11-16 |
| 11168170 | Clearance narrowing material, clearance narrowing material composite, and article using same | Chiharu Tadokoro, Takuo NAGAMINE, Yoshinobu Tsujii, Keita Sakakibara, Hitoshi Hattori +2 more | 2021-11-09 |
| 10882962 | SRT material, composite and method for producing the same | Yoshinobu Tsujii, Keita Sakakibara, Yoshihiko Shimizu, Hiroshi WATANABE, Takaya Sato +1 more | 2021-01-05 |