KI

Kiyoshi Ishioka

Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
Overall (All Time): #756,427 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6918130 Optical disk unit Yuji Ariyoshi, Yosuke Noda, Michinori Hashizume 2005-07-12
6886176 Optical disk drive including a first base portion and a movable second base portion Yuji Ariyoshi, Toru Tanaka, Masanao Wakikawa 2005-04-26
6741536 Optical disk drive including a first base portion and a movable second base portion Yuji Ariyoshi, Toru Tanaka, Masanao Wakikawa 2004-05-25
6529468 Optical disk driving device having a clamper for correcting warpage of an optical disk Yosuke Noda, Yuji Ariyoshi, Katsuhiko Koshino, Masanori Onishi 2003-03-04
6347069 Optical pickup device and production method of optical pickup device components Masanao Wakikawa, Toru Tanaka, Masanori Onishi 2002-02-12
6335914 Optical disc device Toru Tanaka, Yuji Ariyoshi, Masanao Wakikawa, Masanori Onishi 2002-01-01
5987001 Optical disc drive apparatus with disc changer Toru Tanaka, Jun Kitamura 1999-11-16