Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9712568 | Server apparatus and method of operating a network | Yuji Arima, Kazuo Imafuku | 2017-07-18 |
| 8645549 | Signal relay method and relay server performing a relay operation between a plurality of first terminals and a second terminal via a network | Yuji Arima, Kazuo Imafuku | 2014-02-04 |
| 7406079 | Repeater and an inter-network repeating method | Yasushi Yokomitsu, Akio Yao, Toshiyuki Hamasaki, Hiroshi Konishi, Masahiro Shigyo +2 more | 2008-07-29 |
| 5950161 | Navigation system | Makoto Kozuma, Keiich Zenmyo | 1999-09-07 |
| 5617100 | Accurate position measuring system | Masami Akiyoshi | 1997-04-01 |