JK

Junzo Kumakura

SO Sony: 2 patents #335 of 2,234Top 15%
Overall (2002): #57,043 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6430143 Optical pickup device and optical disc recording and/or reproducing apparatus Yoshihiro Kajiyama, Yasuo Osada, Toshiyuki Kuroiwa, Hideo Nagasaka, Kaneshiro Kondo +5 more 2002-08-06
6396794 Disc recording and/or reproducing devices with disc exchanging function Tàkashi Tsugami, Akihisa Inatani 2002-05-28