Inventor
KITAHARA KEN
JP25 patents
⚠️ This page may combine multiple inventors who share the name “KITAHARA KEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMCO CORP
19 patentsUS9932692B2Apr 3, 2018
Vitreous silica crucible
SUMCO CORP2 citations72
US9809902B2Nov 7, 2017
Method for evaluating silica glass crucible, method for producing silicon single crystals
SUMCO CORP2 citations70
US12392050B2Aug 19, 2025
Infrared transmissivity measurement method of quartz glass crucible
SUMCO CORP0 citations61
US11939695B2Mar 26, 2024
Quartz glass crucible, manufacturing method of silicon single crystal using the same, and infrared transmissivity measurement method and manufacturing method of quartz glass crucible
SUMCO CORP0 citations61
US11535546B2Dec 27, 2022
Silica glass crucible
SUMCO CORP0 citations51
US10024784B2Jul 17, 2018
Vitreous silica crucible and evaluation method of the same
SUMCO CORP1 citations51
US9964478B2May 8, 2018
Destructive inspection method and quality determination method for vitreous silica crucible
SUMCO CORP0 citations51
US9863059B2Jan 9, 2018
Method for pulling silicon single crystal
SUMCO CORP0 citations51
US9863061B2Jan 9, 2018
Vitreous silica crucible and method for manufacturing the same
SUMCO CORP1 citations51
US9816917B2Nov 14, 2017
Vitreous silica crucible and distortion-measuring apparatus for the same
SUMCO CORP1 citations51
US9527763B2Dec 27, 2016
Method of manufacturing composite crucible
SUMCO CORP0 citations51
US12116692B2Oct 15, 2024
Quartz glass crucible
SUMCO CORP0 citations50
US9708730B1Jul 18, 2017
Quality-evaluated vitreous silica crucible
SUMCO CORP0 citations50
US9653268B2May 16, 2017
Inspection method of vitreous silica crucible
SUMCO CORP0 citations50
US9557276B2Jan 31, 2017
Inspection method of vitreous silica crucible
SUMCO CORP0 citations50
US9637405B2May 2, 2017
Evaluation method of suitable silica powder in manufacturing vitreous silica crucible for pulling of silicon single crystal
SUMCO CORP0 citations48
US9758901B2Sep 12, 2017
Vitreous silica crucible for pulling of silicon single crystal and method for manufacturing the same
SUMCO CORP1 citations45
US9810526B2Nov 7, 2017
Method for measuring three-dimensional shape of silica glass crucible, and method for producing monocrystalline silicon
SUMCO CORP0 citations41
US9758900B2Sep 12, 2017
Silica glass crucible
SUMCO CORP0 citations41
SUDO TOSHIAKI
4 patentsUS9133063B2Sep 15, 2015
Composite crucible, method of manufacturing the same, and method of manufacturing silicon crystal
SUDO TOSHIAKI9 citations83
US9266763B2Feb 23, 2016
Composite crucible and method of manufacturing the same
SUDO TOSHIAKI0 citations51
US8936684B2Jan 20, 2015
Vitreous silica crucible
SUDO TOSHIAKI0 citations51
US9347148B2May 24, 2016
Vitreous silica crucible with specific ratio of transparent layer and bubble-containing layer thicknesses
SUDO TOSHIAKI0 citations41