Inventor
FUJII TOSHIYUKI
JP83 patents
⚠️ This page may combine multiple inventors who share the name “FUJII TOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
28 patentsUS6654260B2Nov 25, 2003
Asymmetrical power converting apparatus employing self-arc-suppressing switches
MITSUBISHI ELECTRIC CORP30 citations92
US6242895B1Jun 5, 2001
Controller of adjustable DC voltage for a transformerless reactive series compensator
MITSUBISHI ELECTRIC CORP55 citations92
US6225791B1May 1, 2001
Controller for performing a decoupling control of a transformerless reactive series compensator
MITSUBISHI ELECTRIC CORP24 citations92
US5808462ASep 15, 1998
Apparatus for detecting the amplitude and phase of an a.c. signal
MITSUBISHI ELECTRIC CORP20 citations92
US10205402B2Feb 12, 2019
Power conversion device for converting power between a DC circuit and an AC circuit by performing a non-linear operation
MITSUBISHI ELECTRIC CORP10 citations84
US7345379B2Mar 18, 2008
Power converter with voltage and current fault setting
MITSUBISHI ELECTRIC CORP13 citations84
US9712084B2Jul 18, 2017
Electric power conversion device
MITSUBISHI ELECTRIC CORP12 citations83
US5498955AMar 12, 1996
Apparatus for detecting the amplitude and phase of an a.c. signal
MITSUBISHI ELECTRIC CORP13 citations81
US5991181ANov 23, 1999
Power conversion apparatus
MITSUBISHI ELECTRIC CORP17 citations77
US12057787B2Aug 6, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP2 citations73
US10637343B2Apr 28, 2020
Power conversion device for reliable control of circulating current
MITSUBISHI ELECTRIC CORP3 citations73
US10560036B2Feb 11, 2020
Power conversion device for reliable control of circulating current while maintaining voltage of a cell
MITSUBISHI ELECTRIC CORP5 citations73
US10326355B2Jun 18, 2019
Power conversion device
MITSUBISHI ELECTRIC CORP2 citations73
US5602469AFeb 11, 1997
Apparatus for detecting the amplitude and phase of an a.c. signal
MITSUBISHI ELECTRIC CORP8 citations73
US12015354B2Jun 18, 2024
Power conversion device capable of suppressing a harmonic component in an output voltage from an arm that increases after bypass of a failed converter cell
MITSUBISHI ELECTRIC CORP2 citations72
US11909307B2Feb 20, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP2 citations72
US9564827B2Feb 7, 2017
Power conversion device
MITSUBISHI ELECTRIC CORP5 citations72
US11239664B2Feb 1, 2022
Power conversion system
MITSUBISHI ELECTRIC CORP3 citations71
US11757377B2Sep 12, 2023
Power conversion device
MITSUBISHI ELECTRIC CORP3 citations68
US12413156B2Sep 9, 2025
Capacitor balancing control in an HVDC MMC
MITSUBISHI ELECTRIC CORP1 citations64
US12218606B2Feb 4, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP1 citations62
US11750080B2Sep 5, 2023
Power conversion device
MITSUBISHI ELECTRIC CORP1 citations62
US11336169B2May 17, 2022
Power conversion device
MITSUBISHI ELECTRIC CORP1 citations62
US5714877AFeb 3, 1998
Apparatus for detecting the amplitude and phase of an A.C. signal
MITSUBISHI ELECTRIC CORP3 citations62
US10840813B2Nov 17, 2020
Power conversion system
MITSUBISHI ELECTRIC CORP1 citations61
US12348127B2Jul 1, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations52
US12322969B2Jun 3, 2025
Power conversion system
MITSUBISHI ELECTRIC CORP0 citations52
US12308763B2May 20, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations52
NICHIA CORP
8 patentsUS10883700B2Jan 5, 2021
Lens, light emitting device and method of manufacturing the lens and the light emitting device
NICHIA CORP4 citations73
US12416774B2Sep 16, 2025
Method of manufacturing lens and light emitting device
NICHIA CORP0 citations62
US12379564B2Aug 5, 2025
Method of manufacturing lens and light emitting device
NICHIA CORP0 citations62
US12153277B2Nov 26, 2024
Lens and light emitting device
NICHIA CORP0 citations62
US12117162B2Oct 15, 2024
Light emitting device
NICHIA CORP0 citations62
US11788708B2Oct 17, 2023
Lens and light emitting device
NICHIA CORP0 citations62
US11644635B2May 9, 2023
Lens, light emitting device and method of manufacturing the lens and the light emitting device
NICHIA CORP0 citations62
US11640038B2May 2, 2023
Lens, light emitting device and method of manufacturing the lens and the light emitting device
NICHIA CORP1 citations62
OLYMPUS CORP
3 patentsUS10244932B2Apr 2, 2019
Endoscope system with antifogging heating of distal lens
OLYMPUS CORP13 citations84
US12137879B2Nov 12, 2024
Image processing apparatus, image processing method, and endoscope apparatus
OLYMPUS CORP1 citations62
US12475389B2Nov 18, 2025
Training data generation device, recording method, and inference device
OLYMPUS CORP0 citations52
MITSUBISHI HEAVY IND LTD
2 patentsJATCO LTD
2 patentsTOSHIBA MITSUBISHI ELEC INC
2 patentsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD
1 patentMORI OSAMU
1 patentKANSAI ELECTRIC POWER CO
1 patentTANABE SEIYAKU CO
1 patentOLYMPUS MEDICAL SYSTEMS CORP
1 patentShowing the top 50 of 83 patents by PatentIndex Score.