Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857155 | Process of separation of hafnium from zirconium by molten salt electrolysis | Tomoo Kirihara, Yoshinobu Seki, Yutaka Honda | 1989-08-15 |
IN
Ippei Nakagawa
Valqua: 15 patents #2 of 42Top 5%
Nippon Valqua Industries: 5 patents #5 of 83Top 7%
Mitsubishi Nuclear Fuel Co.: 3 patents #19 of 67Top 30%
Ministry Of International Trade & Industry: 1 patents #189 of 582Top 35%
Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
Overall (All Time): #153,240 of 4,157,543Top 4%
26
Patents All Time