YT

Yoshiyuki Tsukai

Pioneer Electronic: 5 patents #387 of 1,840Top 25%
Overall (All Time): #1,050,021 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5867315 Crystal optic lens and an optical system for an optical pickup device Katsuhiro Koike 1999-02-02
5710749 Method and apparatus for determining an optical disc type Masanori Suzuki 1998-01-20
4636628 Optically recorded data reading apparatus with inclination controller 1987-01-13
4633454 Optical information pickup apparatus 1986-12-30
4624526 Optical pickup device Akihiro Tachibana 1986-11-25