Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12287020 | Anti-vibration device | Takeshi Furukori, Hiroshi Kojima | 2025-04-29 |
| 9903437 | Vibration absorption device | Hideki Sugawara, Katsumi Someya, Naoki Maeda | 2018-02-27 |
| 6073918 | Vibration isolating apparatus | Hiroshi Kojima | 2000-06-13 |