TM

Takanori Maeda

Pioneer: 47 patents #8 of 1,730Top 1%
Pioneer Electronic: 43 patents #11 of 1,840Top 1%
DI Dai Nippon Insatsu: 12 patents #19 of 371Top 6%
Dai Nippon Printing Co.: 3 patents #744 of 2,222Top 35%
AK Asahi Kasei Kabushiki Kaisha: 1 patents #556 of 1,220Top 50%
Overall (All Time): #12,949 of 4,157,543Top 1%
106
Patents All Time

Issued Patents All Time

Showing 101–106 of 106 patents

Patent #TitleCo-InventorsDate
4847480 Focus error detecting apparatus Susumu Nomura 1989-07-11
4805992 Astigmatism generator 1989-02-21
4731527 An astigmatic focusing system with optical elements oriented to produce astigmatism in a predetermined direction to maximize detector sensitivity Susumu Nomura 1988-03-15
4695158 Focus error detector Fumitaka Kotaka 1987-09-22
4691098 Focus control device 1987-09-01
4660191 Tracking signal error generator for optical information devices Kenjiro Hamanaka 1987-04-21