Inventor
MOMOTA SEIJI
JP28 patents
⚠️ This page may combine multiple inventors who share the name “MOMOTA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI ELECTRIC CO LTD
20 patentsUS6737705B2May 18, 2004
Insulated gate semiconductor device
FUJI ELECTRIC CO LTD58 citations96
US6559023B2May 6, 2003
Method of fabricating a semiconductor device with phosphorous and boron ion implantation, and by annealing to control impurity concentration thereof
FUJI ELECTRIC CO LTD26 citations92
US5559355ASep 24, 1996
Vertical MOS semiconductor device
FUJI ELECTRIC CO LTD27 citations92
US6621120B2Sep 16, 2003
Semiconductor device
FUJI ELECTRIC CO LTD13 citations83
US9236460B2Jan 12, 2016
Semiconductor device having a diffusion region
FUJI ELECTRIC CO LTD13 citations80
US10003249B2Jun 19, 2018
Insulated gate semiconductor device including switchable insulated gate semiconductor element
FUJI ELECTRIC CO LTD2 citations73
US11239234B2Feb 1, 2022
Semiconductor device
FUJI ELECTRIC CO LTD2 citations71
US12575166B2Mar 10, 2026
Semiconductor device
FUJI ELECTRIC CO LTD0 citations62
US11855077B2Dec 26, 2023
Semiconductor device
FUJI ELECTRIC CO LTD0 citations62
US11749675B2Sep 5, 2023
Semiconductor device
FUJI ELECTRIC CO LTD0 citations62
US10916541B2Feb 9, 2021
Semiconductor device
FUJI ELECTRIC CO LTD0 citations62
US12477815B2Nov 18, 2025
Semiconductor device
FUJI ELECTRIC CO LTD0 citations61
US11810914B2Nov 7, 2023
Semiconductor device
FUJI ELECTRIC CO LTD0 citations61
US5869372AFeb 9, 1999
Method of manufacturing a power semiconductor device
FUJI ELECTRIC CO LTD6 citations61
US12426289B2Sep 23, 2025
Semiconductor device
FUJI ELECTRIC CO LTD0 citations57
US9059238B2Jun 16, 2015
Semiconductor device
FUJI ELECTRIC CO LTD3 citations57
US9761663B2Sep 12, 2017
Semiconductor device
FUJI ELECTRIC CO LTD1 citations52
US9437678B2Sep 6, 2016
Fabrication method of semiconductor device, evaluation method of semiconductor device, and semiconductor device
FUJI ELECTRIC CO LTD0 citations52
US9941397B2Apr 10, 2018
Semiconductor device and method of manufacturing semiconductor device
FUJI ELECTRIC CO LTD0 citations42
US9443942B2Sep 13, 2016
Semiconductor device
FUJI ELECTRIC CO LTD0 citations41
MOMOTA SEIJI
5 patentsUS9466711B2Oct 11, 2016
Semiconductor device
MOMOTA SEIJI9 citations83
US8309409B2Nov 13, 2012
Method for fabricating trench gate to prevent on voltage parasetic influences
MOMOTA SEIJI2 citations61
US8253222B2Aug 28, 2012
Semiconductor device and fabrication method of semiconductor device
MOMOTA SEIJI2 citations58
US8198697B2Jun 12, 2012
Semiconductor device
MOMOTA SEIJI1 citations51
US8691635B2Apr 8, 2014
Fabrication method of semiconductor device
MOMOTA SEIJI0 citations48
FUJI ELEC DEVICE TECH CO LTD
3 patentsUS7368380B2May 6, 2008
Method of manufacturing semiconductor device
FUJI ELEC DEVICE TECH CO LTD2 citations63
US7151297B2Dec 19, 2006
Insulated gate semiconductor device
FUJI ELEC DEVICE TECH CO LTD4 citations62
US7462911B2Dec 9, 2008
Insulated gate semiconductor device
FUJI ELEC DEVICE TECH CO LTD0 citations52