Inventor
KOIZUMI TAKESHI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “KOIZUMI TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
9 patentsUS6268043B1Jul 31, 2001
Magnetic recording medium
SONY CORP98 citations94
US6501728B2Dec 31, 2002
Optical disc having groove and land tracks
SONY CORP8 citations72
US11061522B2Jul 13, 2021
Input device, operation device, and electronic apparatus
SONY CORP2 citations71
US6480461B1Nov 12, 2002
Recording medium cartridge
SONY CORP4 citations62
US5932340AAug 3, 1999
Magnetic recording medium
SONY CORP2 citations62
US10620757B2Apr 14, 2020
Input device and electrical apparatus
SONY CORP1 citations60
US5997987ADec 7, 1999
Magnetic recording medium
SONY CORP3 citations59
US5800915ASep 1, 1998
Magnetic recording medium
SONY CORP0 citations51
US11301046B2Apr 12, 2022
Electronic apparatus, information processing device, and information processing method
SONY CORP0 citations41