Inventor
ISHII TAMOTSU
JP14 patents
⚠️ This page may combine multiple inventors who share the name “ISHII TAMOTSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
8 patentsUS5426629AJun 20, 1995
Recording and/or reproducing method for an optical disc
SONY CORP54 citations93
US4775970AOct 4, 1988
Optical recording/reproducing apparatus for cards with reproduction light beam axes from a source and into a detector being parallel to the card
SONY CORP7 citations72
US11198036B2Dec 14, 2021
Information processing system
SONY CORP2 citations71
US10716968B2Jul 21, 2020
Information processing system
SONY CORP4 citations71
US11330408B2May 10, 2022
Information processing apparatus, terminal device, and information processing method
SONY CORP0 citations60
US10812195B2Oct 20, 2020
Optical communication device
SONY CORP0 citations50
US7110328B2Sep 19, 2006
Recording and reproducing apparatus for recording and reproducing information to and from a magneto-optical storage medium
SONY CORP0 citations41
US7065023B2Jun 20, 2006
Light spot advancing direction judging device and method, optical head device control device and method, and optical disk recording/reproducing device
SONY CORP0 citations41