Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659628 | Method of presubstrate treatment for painting utilizing a gas soft nitriding | Yahiko Nakamura, Akio Hidaka, Shunji Kobayashi, Hiroyoshi Nozaki | 1987-04-21 |
| 4519854 | Process and apparatus for heat treatment of steel material such as of soft steel or the like | Yasuo Nakanishi, Kazunori Sakamoto, Giichi Ando | 1985-05-28 |
| 4395025 | Method and apparatus for the continuous furnace brazing and gas soft-nitriding treatments of iron articles | Tadao Kanno, Akio Hidaka, Shunji Kobayashi | 1983-07-26 |
| 4342605 | Gas soft-nitriding method | Shunji Kobayashi | 1982-08-03 |
| 4294630 | Method and apparatus for the continuous furnace brazing and soft-nitriding treatments of iron articles | Tadao Kanno, Akio Hidaka, Shunji Kobayashi | 1981-10-13 |