Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425431 | Welding method using heating plate and welding apparatus using the same | Toshitaka Naito, Masahiko Koizumi, Tomoki Kumayama, Hiroyuki Kageyama, Fujihiko Sugiyama | 2002-07-30 |
| 6294763 | Apparatus for annealing welded parts and method therefor | Kazuhiro Aono, Kazuyoshi Sakano, Hiroyuki Kageyama | 2001-09-25 |
| 6280566 | Vibration welding apparatus having an easy to assemble jig structure | Toshitaka Naito, Masahiko Koizumi, Fuzihiko Sugiyama, Masahiko Nishizaki | 2001-08-28 |