Inventor
MATSUSHIMA KIYOSHI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “MATSUSHIMA KIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK INSULATORS LTD
15 patentsUS10138166B2Nov 27, 2018
Alumina sintered body and base substrate for optical device
NGK INSULATORS LTD2 citations73
US12424440B2Sep 23, 2025
Rare earth-containing SiC substrate and method for producing SiC epitaxial layer
NGK INSULATORS LTD0 citations62
US12125883B2Oct 22, 2024
Biaxially oriented SiC composite substrate and semiconductor device composite substrate
NGK INSULATORS LTD0 citations62
US10717677B2Jul 21, 2020
Method for producing transparent alumina sintered body
NGK INSULATORS LTD1 citations62
US12431440B2Sep 30, 2025
SiC composite substrate and composite substrate for semiconductor device
NGK INSULATORS LTD0 citations59
US12183792B2Dec 31, 2024
SiC composite substrate and composite substrate for semiconductor device
NGK INSULATORS LTD0 citations59
US12080551B2Sep 3, 2024
SiC composite substrate including biaxially oreinted SiC layer and semiconductor device
NGK INSULATORS LTD0 citations59
US12065383B2Aug 20, 2024
Oriented ceramic sintered body production method and flat sheet
NGK INSULATORS LTD0 citations52
US10435815B2Oct 8, 2019
Oriented alumina substrate for epitaxial growth
NGK INSULATORS LTD0 citations52
US10435816B2Oct 8, 2019
Oriented alumina substrate for epitaxial growth
NGK INSULATORS LTD0 citations52
US10427949B2Oct 1, 2019
Alumina sintered body and base substrate for optical device
NGK INSULATORS LTD0 citations52
US10336625B2Jul 2, 2019
Alumina sintered body and base substrate for optical device
NGK INSULATORS LTD0 citations52
US9457345B2Oct 4, 2016
Silicon carbide porous material, honeycomb structure and electric heating-type catalyst carrier
NGK INSULATORS LTD1 citations52
US9440225B2Sep 13, 2016
Silicon carbide porous body, honeycomb structure, and electric heating type catalyst carrier
NGK INSULATORS LTD0 citations52
US10315957B2Jun 11, 2019
Method for producing transparent alumina sintered body
NGK INSULATORS LTD0 citations41