Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231996 | Part or jig for gas carburizing furnace | Tatsuya Oishi | 2001-05-15 |
| 5449107 | Weld backing | Tatsuya Oishi, Yuichi Kimura, Akitoshi Masamura, Akio Iwasaki | 1995-09-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231996 | Part or jig for gas carburizing furnace | Tatsuya Oishi | 2001-05-15 |
| 5449107 | Weld backing | Tatsuya Oishi, Yuichi Kimura, Akitoshi Masamura, Akio Iwasaki | 1995-09-12 |