Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9716797 | Mobile wireless communication control device and mobile wireless communication system | Shigeaki Suzuki, Tadashi Yamaura | 2017-07-25 |
| 7065099 | Digital circuit multiplication equipment | Shigeaki Suzuki, Hisashi Yajima | 2006-06-20 |
| 6882969 | Variable bit rate digital circuit multiplication equipment with tandem passthrough function | Shigeaki Suzuki | 2005-04-19 |
| 6683944 | Voice transmitter | — | 2004-01-27 |
| 6172978 | Tandem relay device | Yoshihiko Shirokura, Yukimasa Sugino, Hideaki Ebisawa, Yushi Naito | 2001-01-09 |
| 5926477 | Multistage relay device | Yoshihiko Shirokura, Shuji Ito | 1999-07-20 |
| 5493610 | Circuit multiple transmission system | Shigeaki Suzuki, Yuhshi Naito | 1996-02-20 |
| 4972411 | Signalling transmission system | Noriaki Kawano, Yushi Naito | 1990-11-20 |