Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8372375 | Method of producing high-purity hydrogen | Takeshi Yamashita, Akitoshi Fujisawa, Keita Yura | 2013-02-12 |
| 7892328 | PSA apparatus for producing high-purity hydrogen gas | Shinichi Miura, Takeshi Yamashita, Akitoshi Fujisawa | 2011-02-22 |
| 6706939 | Method for concentrating 2,6-dimethylnaphthalene | Koji Yamamoto, Masahiro Motoyuki | 2004-03-16 |
| 4824329 | Method and apparatus for controlling liquid metal flow | Hajime Yamamoto, Tadashi Gotou, Masanori Yamakawa, Takashi Ikeda | 1989-04-25 |