P

Inventor

KOTAKA FUMITAKA

JP5 patents
⚠️ This page may combine multiple inventors who share the name “KOTAKA FUMITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PIONEER ELECTRONIC CORP

3 patents
US4695158ASep 22, 1987

Focus error detector

PIONEER ELECTRONIC CORP38 citations91
US5420847AMay 30, 1995

Reproducing system for an optical disc

PIONEER ELECTRONIC CORP13 citations73
US4290132ASep 15, 1981

Focus servo device for use in an optical information read-out device

PIONEER ELECTRONIC CORP11 citations70

PIONEER CORP

1 patent
US6594220B1Jul 15, 2003

Volume holographic memory and optical information recording/reproducing apparatus

PIONEER CORP18 citations83

UNIVERSAL PIONEER CORP

1 patent
US4261646AApr 14, 1981

Beam splitter for optical player

UNIVERSAL PIONEER CORP6 citations59