Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10129030 | Information delivery system, information delivery method, short-range communication device, information delivery apparatus, and server | Akira Shibutani, Kazuma Nachi, Yuuta Higuchi, Tetsuhiro Sasagawa, Tetsuhiro Tanno +3 more | 2018-11-13 |
| 9779568 | Locking control device, locking control system, and locking control method | Akira Shibutani, Kazuma Nachi, Yuuta Higuchi, Tetsuhiro Sasagawa, Tetsuhiro Tanno +3 more | 2017-10-03 |
| 5289447 | Track cross signal generation circuit of optical disk device for correctly outputting track cross signal and correctly and stably carrying out seek operation even within high-speed region of beam | Akira Minami, Shigenori Yanagi | 1994-02-22 |