Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7973298 | Transport/storage cask for radioactive material | Jun Shimojo, Hiroshi Akamatsu, Kenichi Mantani | 2011-07-05 |
| 7294375 | Cement composite, concrete, concrete cask and method of manufacturing concrete | Jun Shimojo, Yutaka Sugihara, Eiji Owaki, Reiko Okamoto | 2007-11-13 |
| 7119349 | Concrete cask and method for manufacturing thereof | Jun Shimojo, Yutaka Sugihara, Eiji Owaki, Akihito Hata, Katsuhiko Hirakawa +1 more | 2006-10-10 |
| 5887042 | Cask for a radioactive material and radiation shield | Hiroshi Akamatsu | 1999-03-23 |
| 5641970 | Transport/storage cask for a radioactive material | Kenichi Mantani | 1997-06-24 |