Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12063464 | Speaker bracket, speaker frame, and speaker | Hayami Kondo, Shun Shirahata, Masato Tsuruya, Hiroyuki Dohi | 2024-08-13 |
| 11381893 | Speaker bracket, speaker frame, and speaker | Hayami Kondo, Shun Shirahata, Masato Tsuruya, Hiroyuki Dohi | 2022-07-05 |
| D911155 | Bracket for automobile speaker | Hayami Kondo, Shun Shirahata, Hiroyuki Dohi, Masato Tsuruya | 2021-02-23 |
| 5533227 | Toothbrush | Kenji Kaneko, Satoshi Hayashi, Akiko Terai | 1996-07-09 |
| 4741066 | Brush | Akiyoshi Umebara, Tsuneo Umezawa | 1988-05-03 |