Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851059 | Non-magnetic high hardness austenitic stainless steel | Hidehiko Sumitomo, Takanori Nakazawa, Jun Nakatsuka, Jiro Tominaga | 1989-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851059 | Non-magnetic high hardness austenitic stainless steel | Hidehiko Sumitomo, Takanori Nakazawa, Jun Nakatsuka, Jiro Tominaga | 1989-07-25 |