Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7530458 | Connecting fastener | Takeo Fujiyama, Junichi Tamura, Yoshihiro Kaneko, Koichi Kohama | 2009-05-12 |
| 7029220 | Band shaped connected screws with inverse screw threads | Takeo Fujiyama, Junichi Tamura, Yasushi Nakagawa | 2006-04-18 |
| 6164171 | Screwdriver used for screw tightener and screw suitably tightened by the screwdriver | Yoshihiro Kaneko, Tomoaki Sakata | 2000-12-26 |