Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11739401 | Black heart malleable cast-iron and method for manufacturing same | Ryo Goto, Hiroshi Matsui, Kenta Matsuura | 2023-08-29 |
| 11486014 | Method for producing plated black heart malleable cast iron member, plated black heart malleable cast iron member, and pipe joint | Ryo Goto, Hiroshi Matsui, Akinori Sawada | 2022-11-01 |
| 5569334 | Stainless steel member for semiconductor fabrication equipment and surface treatment method therefor | Tsunehiro Kawata, Katsuhiko Kojo, Youichiro Kazama, Toshihiko Tsujimura | 1996-10-29 |
| 4913737 | Sintered metallic parts using extrusion process | Hideki Nakamura | 1990-04-03 |
| 4769212 | Process for producing metallic sintered parts | Hideki Nakamura | 1988-09-06 |