Issued Patents 2002
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493203 | Phase control switch apparatus | Masaki Hiratsuka, Haruhiko Kohyama | 2002-12-10 |
| 6469670 | Antenna device and portable radio communication device | — | 2002-10-22 |
| 6454942 | Liquid separation membrane module | Takuji Shintani, Masahiko Hirose, Masaaki Ando | 2002-09-24 |
| 6456248 | Antenna device and portable wireless communication apparatus | — | 2002-09-24 |
| 6392390 | Synchronous switching apparatus for use with a multiple phase power system | Haruhiko Kohyama, Mikio Hidaka | 2002-05-21 |
| 6386984 | Amusement facilities, vehicles for amusement facilities, and display for amusement facilities | Yoshiteru Hara, Kenichiro Hayashi, Kazuhide Arai, Tatsuya Kono, Hiroshi Uemura | 2002-05-14 |
| 6366247 | Antenna device and portable radio set | Masatoshi Sawamura | 2002-04-02 |
| 6362792 | Antenna apparatus and portable radio set | Masatoshi Sawamura, Yoshiki Kanayama | 2002-03-26 |