Inventor
KAMIYAMA HIDEYO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “KAMIYAMA HIDEYO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
7 patentsUS6172953B1Jan 9, 2001
Defect detector and information reproduction apparatus employing the same
PIONEER ELECTRONIC CORP28 citations91
US5909419AJun 1, 1999
Disk discrimination apparatus for an optical disk reproducing apparatus
PIONEER ELECTRONIC CORP22 citations91
US5966355AOct 12, 1999
Focus servo pull-in apparatus for use in a compatible disk player
PIONEER ELECTRONIC CORP19 citations83
US6487153B2Nov 26, 2002
System for discriminating optical discs
PIONEER ELECTRONIC CORP10 citations73
US6327234B1Dec 4, 2001
System for discriminating optical discs
PIONEER ELECTRONIC CORP12 citations73
US6084836AJul 4, 2000
Defect detection apparatus for detecting defects on a recording medium and reading apparatus incorporating the defect detection system
PIONEER ELECTRONIC CORP10 citations72
US4847816AJul 11, 1989
Audio information reproducing apparatus
PIONEER ELECTRONIC CORP8 citations65
PIONEER CORP
4 patentsUS6341113B1Jan 22, 2002
Servo device for recording medium player
PIONEER CORP20 citations91
US6747922B2Jun 8, 2004
Track-jump controlling apparatus and method
PIONEER CORP14 citations83
US6236032B1May 22, 2001
Tracking pull-in circuit for reducing effect by a defect in a tracking servo loop
PIONEER CORP17 citations83
US6392966B1May 21, 2002
Feed velocity control apparatus for controlling the movement of information reading point of disc player
PIONEER CORP7 citations72