Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6954135 | Emergency communication system | Kenji Yoshioka | 2005-10-11 |
| 6873837 | Emergency reporting system and terminal apparatus therein | Kenji Yoshioka, Masashi Yamamoto | 2005-03-29 |
| 6377165 | Mayday system equipment and mayday system | Kenji Yoshioka | 2002-04-23 |
| 6337641 | Emergency reporting system and terminal apparatus therein | Kenji Yoshioka, Masashi Yamamoto | 2002-01-08 |
| 6310543 | Emergency call system | Kenji Yoshioka, Masashi Yamamoto | 2001-10-30 |
| 5742688 | Sound field controller and control method | Michiko Ogawa, Akihisa Kawamura, Masaharu Matsumoto, Toshihiko Date, Tadashi Tamura | 1998-04-21 |
| 5416846 | Noise control system and method | Tadashi Tamura, Kenichi Terai, Hiroyuki Hashimoto | 1995-05-16 |
| 5388160 | Noise suppressor | Hiroyuki Hashimoto, Kenichi Terai, Hironari Ogata, Chie Yano | 1995-02-07 |
| 5377276 | Noise controller | Kenichi Terai, Hiroyuki Hashimoto, Tadashi Tamura | 1994-12-27 |
| 4924962 | Sound reproducing apparatus for use in vehicle | Kenichi Terai, Shuji Saiki, Kousaku Murata, Katsuaki Satoh, Yoichi Kumura +2 more | 1990-05-15 |
| 4790014 | Low-pitched sound creator | Koji Watanabe, Katsuhiko Hayashi, Nobuaki Minakuchi, Masayuki Misaki, Kenichi Terai +1 more | 1988-12-06 |
| 4722009 | Tone restoring apparatus | Masayuki Misaki, Seiichi Ishikawa | 1988-01-26 |
| 4584701 | Reverberator having tapped and recirculating delay lines | Koji Watanabe | 1986-04-22 |