Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7575643 | Carburization treatment method | Hisashi Ebihara, Jun Takahashi, Keiji Yokose, Hidetoshi Juryozawa | 2009-08-18 |
| 7276204 | Carburization treatment method and carburization treatment apparatus | Hisashi Ebihara, Jun Takahashi, Keiji Yokose, Hidetoshi Juryozawa | 2007-10-02 |
| 7024916 | Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure. | Hidetoshi Juryozawa, Keiji Yokose, Jun Takahashi, Hisashi Ebihara | 2006-04-11 |
| 6709629 | Vacuum heat treatment furnace | Hidetoshi Juryozawa, Keiji Yokose, Jun Takahashi, Hisashi Ebihara | 2004-03-23 |
| 5868871 | Method and apparatus for carburizing, quenching and tempering | Keiji Yokose, Hidetoshi Juryosawa, Jun Takahashi, Shinichi Takemoto, Hideki Inoue | 1999-02-09 |
| 5795406 | Cementation method of metals | Toshiyuki Kawamura, Hitoshi Goi | 1998-08-18 |
| 5795538 | Apparatus for steel hardening and process therefor | Hitoshi Goi, Masahiko Watanabe, Shin Kurasawa, Hirofumi Kamisugi | 1998-08-18 |
| 4950334 | Gas carburizing method and apparatus | Nobuo Nishioka, Tadayoshi Juge, Yoshiaki Shimizu, Keishichi Namba, Hiroshi Shimura +3 more | 1990-08-21 |