Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012342 | Lubricant base oil and method of producing the same | Katsuaki Ishida, Masayuki Saito, Hiroshi Yachi | 2011-09-06 |
| 7952821 | Lens barrel and imaging device with lens barrel | Atsushi Hasegawa, Takumi Kuwahara | 2011-05-31 |