Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5407492 | Process for forming passivated film | Tadahiro Ohmi, Yoshiyuki Nakahara, Eiji Ohta, Satoshi Mizokami | 1995-04-18 |
| 5295668 | Metal tube oxidation treatment apparatus | Tadahiro Ohmi, Yoshiyuki Nakahara, Shigeki Hayashi, Eiji Ohta, Fumio Nakahara | 1994-03-22 |
| 5259935 | Stainless steel surface passivation treatment | Jeffrey M. Davidson, Robert Sherman, Richard Paciej, Shigeki Hayashi, Yoshiyuki Nakahara | 1993-11-09 |