Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5810978 | Method of reducing metallic impurities in ozone gas piping | Suguru Nakatsuka, Jiro Kobayashi, Seiji Nakamoto | 1998-09-22 |
| 5217684 | Precipitation-hardening-type Ni-base alloy exhibiting improved corrosion resistance | Masaaki Igarashi, Yasutaka Okada, Akio Ikeda | 1993-06-08 |
| 5000914 | Precipitation-hardening-type ni-base alloy exhibiting improved corrosion resistance | Masaaki Igarashi, Yasutaka Okada, Akio Ikeda | 1991-03-19 |