Inventor
NAKAGAWA SHIRO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA SHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
15 patentsUS6411078B1Jun 25, 2002
Current sensor apparatus
TDK CORP132 citations97
US6323634B1Nov 27, 2001
Magnetic sensor apparatus, current sensor apparatus and magnetic sensor element
TDK CORP103 citations97
US6316931B1Nov 13, 2001
Magnetic sensor apparatus and current sensor apparatus
TDK CORP104 citations97
US6194121B1Feb 27, 2001
Optical recording medium
TDK CORP20 citations92
US5741623AApr 21, 1998
Optical recording medium
TDK CORP25 citations92
US5512416AApr 30, 1996
Optical recording medium
TDK CORP33 citations92
US5396796AMar 14, 1995
Humidity meter
TDK CORP43 citations92
US5317274AMay 31, 1994
Humidity meter
TDK CORP48 citations91
US6316939B1Nov 13, 2001
Magnetic sensor measuring apparatus and current sensor non-contact measuring apparatus
TDK CORP12 citations73
US5305005AApr 19, 1994
Analog to digital converter system
TDK CORP12 citations73
US5652382AJul 29, 1997
Humidity meter
TDK CORP15 citations72
US5531097AJul 2, 1996
Absolute humidity meter
TDK CORP14 citations72
US5515723AMay 14, 1996
Humidity meter
TDK CORP18 citations72
US5065625ANov 19, 1991
Humidity meter
TDK CORP16 citations70
US5310425AMay 10, 1994
Toner concentration detector for a two-component developer
TDK CORP4 citations55
TDK ELECTRONICS CO LTD
7 patentsUS4412231AOct 25, 1983
Light recording medium
TDK ELECTRONICS CO LTD141 citations96
US4530080AJul 16, 1985
Optical recording/reproducing system
TDK ELECTRONICS CO LTD44 citations92
US4599718AJul 8, 1986
Method for erasing a light recording medium
TDK ELECTRONICS CO LTD28 citations91
US4048658ASep 13, 1977
Video recording and reproducing system using hadamard matrixing
TDK ELECTRONICS CO LTD20 citations82
US4516234AMay 7, 1985
Optical recording system
TDK ELECTRONICS CO LTD12 citations74
US4246600AJan 20, 1981
Color image pick-up system for a color television system
TDK ELECTRONICS CO LTD10 citations74
US4222084ASep 9, 1980
Magnetic head
TDK ELECTRONICS CO LTD18 citations73