Inventor
YABUZAKI JUN
JP20 patents
⚠️ This page may combine multiple inventors who share the name “YABUZAKI JUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI ELECTRIC CO LTD
10 patentsUS8379419B2Feb 19, 2013
Soft-stop overvoltage protection circuit for power factor correction type switching power supply unit
FUJI ELECTRIC CO LTD26 citations92
US9825540B2Nov 21, 2017
Switching power supply apparatus
FUJI ELECTRIC CO LTD9 citations83
US10469064B2Nov 5, 2019
Power converter
FUJI ELECTRIC CO LTD2 citations72
US10291133B2May 14, 2019
Switching power supply device
FUJI ELECTRIC CO LTD2 citations72
US9240713B2Jan 19, 2016
Switching power supply device
FUJI ELECTRIC CO LTD2 citations62
US9036383B2May 19, 2015
Power supply device control circuit
FUJI ELECTRIC CO LTD2 citations62
US12289052B2Apr 29, 2025
Integrated circuit and power supply circuit
FUJI ELECTRIC CO LTD0 citations52
US12244233B2Mar 4, 2025
Integrated circuit having switching control and power supply circuit including the same
FUJI ELECTRIC CO LTD0 citations51
US12155311B2Nov 26, 2024
Integrated circuit for load-state-based control and power supply circuit containing the same
FUJI ELECTRIC CO LTD0 citations51
US10581332B2Mar 3, 2020
Dimmer and power converter
FUJI ELECTRIC CO LTD0 citations41
KOITO MFG CO LTD
6 patentsUS6340870B1Jan 22, 2002
Lighting circuit for discharge lamp
KOITO MFG CO LTD49 citations92
US6208089B1Mar 27, 2001
Discharge-lamp lighting circuit
KOITO MFG CO LTD21 citations92
US6087776AJul 11, 2000
Discharge lamp lighting circuit with protection circuit
KOITO MFG CO LTD23 citations92
US6002215ADec 14, 1999
Lighting circuit for discharge lamp
KOITO MFG CO LTD43 citations92
US5973457AOct 26, 1999
Lighting circuit for discharge lamp
KOITO MFG CO LTD25 citations92
US5914566AJun 22, 1999
Lighting circuit for applying a negative AC voltage to a discharge lamp
KOITO MFG CO LTD16 citations74