Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11788331 | Hinge device | Yoshitaka Ishii, Yuichi Hatano | 2023-10-17 |
| 7895710 | Hinge device | Hisamitsu Takagi, Shinichiro Koshikawa, Ryo Niimi | 2011-03-01 |
KT
Kei Tsuruoka
Sugatsune Kogyo Co.: 1 patents #50 of 79Top 65%
Overall (All Time): #1,823,624 of 4,157,543Top 45%
2
Patents All Time