Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8283621 | Optical apparatus, imaging apparatus, and manufacturing method for optical apparatus with holding member for maintaining positional relation between optical elements | Kyouji Genda | 2012-10-09 |
| 6454522 | Impeller for circumferential current pump | Yasuyuki Sakamoto | 2002-09-24 |
| 6443692 | Impeller for circumferential current pump and method of forming the same | Yasuyuki Sakamoto, Yoichi Takeuchi | 2002-09-03 |