Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12253599 | Attachment for ultrasonic-wave transmitter/receiver | Kenji Nagareda, Kimihiro Kusuno, Shigeo Yamamoto | 2025-03-18 |
| 11841427 | Ultrasonic-wave transmitter/receiver | Kenji Nagareda | 2023-12-12 |
| 11635515 | Flasher type multi-frequency fish finder | Kenji Nagareda, Kazuki Higuchi | 2023-04-25 |
| 9250325 | Flasher type fish sonar | Yoshiki Katayama | 2016-02-02 |
| 8644112 | Flasher type fish sonar | Yoshiki Katayama | 2014-02-04 |
| 8553500 | Flasher type fish sonar | Yoshiki Katayama | 2013-10-08 |