Inventor
SUMIDA KATSUTOSHI
JP5 patents
⚠️ This page may combine multiple inventors who share the name “SUMIDA KATSUTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
4 patentsUS6744705B1Jun 1, 2004
Optical disc recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations81
US6212143B1Apr 3, 2001
Spindle motor control system for a disk player
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations71
US5835463ANov 10, 1998
Spindle motor control system for use in an optical disk player
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations71
US6700841B1Mar 2, 2004
Optical-disc recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations60