Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8194499 | Ultrasonic underwater detector with voltage and envelope control | Masaru Nishida, Itsuo Fukuoka, Yasunobu Asada, Satoshi Misonoo, Shinji Ogawa +1 more | 2012-06-05 |
| 7773459 | Underwater sounding method and apparatus | Osamu Kubota, Toshiyuki Shimizu, Shintaro Oda | 2010-08-10 |
| 7663974 | Fishfinder | Toshiyuki Shimizu, Masahiko Mushiake, Masaki Ogata, Yoshito Okubo | 2010-02-16 |
| 7388809 | Fish finder that transmits ultrasonic waves, receives echo signals, and performs interference removal | Makoto Shibata | 2008-06-17 |
| 7245557 | Sonar | Shinji Ishihara, Takanori Satoh, Osamu Kubota, Yuriko Onishi | 2007-07-17 |
| 6418080 | Underwater detection apparatus | — | 2002-07-09 |