Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795538 | Apparatus for steel hardening and process therefor | Fumitaka Abukawa, Hitoshi Goi, Masahiko Watanabe, Shin Kurasawa | 1998-08-18 |
| 5676769 | Gas carburizing process and an apparatus therefor | Toshiyuki Kawamura, Hitoshi Goi, Atsushi Murayama | 1997-10-14 |