SY

Shuichi Yangisawa

Pioneer Electronic: 1 patents #72 of 290Top 25%
Overall (1994): #161,008 of 165,921Top 100%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5363356 Tracking apparatus for optical disk and tracking method of the same with tracking polarity invertor responsive to disk type Satoru Tanaka, Fumio Matsui 1994-11-08