Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4650231 | Striker for a locking device | Yuichi Kato | 1987-03-17 |
| 4634156 | Door lock device | Osamu Seko | 1987-01-06 |
| 4575138 | Door latching device | Hitoshi Nakamura | 1986-03-11 |
RS
Ryoji Shimura
Ohi Seisakusho Co.: 18 patents #3 of 196Top 2%
Mitsui Kinzoku Act: 6 patents #17 of 109Top 20%
Mitsui Mining & Smelting Co.: 4 patents #141 of 838Top 20%
Overall (All Time): #138,815 of 4,157,543Top 4%
28
Patents All Time