Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7700714 | Optical element and achromatic lens | Kunio Hatanaka, Yoshihiko Imanaka | 2010-04-20 |
| 5998674 | Bromine compound production method | Yutaka Taketani, Haruhisa Hoshimi, Seiichi Tanabe, Yasuhiro Shimidzu | 1999-12-07 |