KN

Keiji Nakazawa

SI Sumitomo Electric Device Innovations: 3 patents #44 of 208Top 25%
SI Seiko Instruments: 1 patents #836 of 1,437Top 60%
Overall (All Time): #1,197,882 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9748731 Optical apparatus 2017-08-29
8537867 Method for fabricating optical device Haruo Yonetani 2013-09-17
8391325 Optical device and method for fabricating optical device Haruo Yonetani 2013-03-05
8248726 Hard disk drive Masaki Sansawa, Shinji Kinoshita 2012-08-21