Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8068289 | Optical system and optical apparatus having the same | — | 2011-11-29 |
| 8027097 | Rear attachment lens and image-forming optical system using the same | — | 2011-09-27 |
| 7993798 | Manufacture of fuel cell | Takeharu Kuramochi, Masanori Iwamoto, Masahiko Katsu, Masahiro Omata, Hideto Kanafusa +1 more | 2011-08-09 |
| 7981572 | Fuel cell and production of fuel cell stack | Akira Fujiki, Yukihiro Maekawa, Takeharu Kuramochi, Masahiko Katsu, Takayuki Hirao +7 more | 2011-07-19 |