Inventor
NAGANO TSUYOSHI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “NAGANO TSUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI ELECTRIC CO LTD
11 patentsUS10819212B1Oct 27, 2020
Gate driver and power converter
FUJI ELECTRIC CO LTD14 citations85
US11056965B2Jul 6, 2021
Gate driver and power converter
FUJI ELECTRIC CO LTD4 citations72
US10547300B1Jan 28, 2020
Driving device and switching device
FUJI ELECTRIC CO LTD2 citations72
US11329644B2May 10, 2022
Gate drive apparatus, switching apparatus, and gate drive method
FUJI ELECTRIC CO LTD0 citations62
US11271560B2Mar 8, 2022
Gate drive device and switching device
FUJI ELECTRIC CO LTD0 citations62
US11205948B2Dec 21, 2021
Gate driver and power converter
FUJI ELECTRIC CO LTD0 citations62
US11196336B2Dec 7, 2021
Gate drive apparatus and switching apparatus
FUJI ELECTRIC CO LTD0 citations62
US10855272B1Dec 1, 2020
Gate drive apparatus, switching apparatus, and gate drive method
FUJI ELECTRIC CO LTD1 citations62
US11115017B2Sep 7, 2021
Driving apparatus and switching apparatus
FUJI ELECTRIC CO LTD0 citations51
US10637465B2Apr 28, 2020
Driving device and switching device
FUJI ELECTRIC CO LTD0 citations41
US10608626B2Mar 31, 2020
Driving apparatus and semiconductor device
FUJI ELECTRIC CO LTD0 citations41
NEC CORP
6 patentsUS6014359AJan 11, 2000
Optical head with a polarizing diffractive element
NEC CORP24 citations92
US6278681B1Aug 21, 2001
Optical head, method of fabricating optical head, and apparatus for fabricating optical head
NEC CORP18 citations83
US5757755AMay 26, 1998
Data reading/writing optical head with holographic coupler
NEC CORP17 citations83
US5701289ADec 23, 1997
Optical head with hologram couplers for reading and writing data
NEC CORP11 citations73
US5680385AOct 21, 1997
Optical head with a heat sink
NEC CORP17 citations73
US5953295ASep 14, 1999
Focusing error detecting equipment
NEC CORP6 citations62
LASERFRONT TECHNOLOGIES INC
2 patentsUS7916393B2Mar 29, 2011
Optical level control device, method for controlling same, and laser application device
LASERFRONT TECHNOLOGIES INC1 citations51
US7804644B2Sep 28, 2010
Optical level control device, method for controlling same, and laser application device
LASERFRONT TECHNOLOGIES INC0 citations51