Inventor
KUBO SHUICHI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KUBO SHUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI CHEM CORP
14 patentsUS11038024B2Jun 15, 2021
Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device
MITSUBISHI CHEM CORP4 citations83
US10475887B2Nov 12, 2019
Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device
MITSUBISHI CHEM CORP5 citations83
US11664428B2May 30, 2023
Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device
MITSUBISHI CHEM CORP1 citations72
US11031475B2Jun 8, 2021
Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device
MITSUBISHI CHEM CORP3 citations72
US10734485B2Aug 4, 2020
Gallium nitride substrate and manufacturing method of nitride semiconductor crystal
MITSUBISHI CHEM CORP1 citations71
US12107129B2Oct 1, 2024
Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device
MITSUBISHI CHEM CORP0 citations62
US11670687B2Jun 6, 2023
Gallium nitride substrate and manufacturing method of nitride semiconductor crystal
MITSUBISHI CHEM CORP0 citations61
US9673046B2Jun 6, 2017
Gallium nitride substrate and manufacturing method of nitride semiconductor crystal
MITSUBISHI CHEM CORP1 citations61
US10570530B2Feb 25, 2020
Periodic table group 13 metal nitride crystals and method for manufacturing periodic table group 13 metal nitride crystals
MITSUBISHI CHEM CORP0 citations51
US10023976B2Jul 17, 2018
Periodic table group 13 metal nitride crystals and method for manufacturing periodic table group 13 metal nitride crystals
MITSUBISHI CHEM CORP0 citations51
US9840791B2Dec 12, 2017
Periodic table group 13 metal nitride crystals and method for manufacturing periodic table group 13 metal nitride crystals
MITSUBISHI CHEM CORP0 citations51
US8022413B2Sep 20, 2011
Group III nitride semiconductor substrate and method for cleaning the same
MITSUBISHI CHEM CORP0 citations49
US7928446B2Apr 19, 2011
Group III nitride semiconductor substrate and method for cleaning the same
MITSUBISHI CHEM CORP1 citations49
US12487560B2Dec 2, 2025
Light guide plate for image display
MITSUBISHI CHEM CORP0 citations47
TOYOTA MOTOR CO LTD
3 patentsUS6499294B1Dec 31, 2002
Exhaust gas purification device for an internal combustion engine
TOYOTA MOTOR CO LTD78 citations94
US6783877B2Aug 31, 2004
Fuel reforming apparatus
TOYOTA MOTOR CO LTD22 citations92
US7930922B2Apr 26, 2011
Soot generation amount estimation apparatus for internal combustion engine
TOYOTA MOTOR CO LTD10 citations81