Inventor
KOMUKAI TETSUFUMI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “KOMUKAI TETSUFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL MINING CO
30 patentsUS10547052B2Jan 28, 2020
Transition metal-containing composite hydroxide and manufacturing method thereof, positive electrode active material for a non-aqueous electrolyte secondary battery and manufacturing method thereof, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO6 citations82
US6855185B2Feb 15, 2005
Method of manufacturing niobium and/or tantalum powder
SUMITOMO METAL MINING CO5 citations73
US11063257B2Jul 13, 2021
Positive electrode active material for nonaqueous electrolyte secondary batteries, production method thereof, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO2 citations72
US10797302B2Oct 6, 2020
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
SUMITOMO METAL MINING CO2 citations72
US10177373B2Jan 8, 2019
Positive electrode active material for non-aqueous electrolyte secondary battery and method for producing same, and non-aqueous electrolyte secondary battery manufactured using said positive electrode active material
SUMITOMO METAL MINING CO4 citations72
US10854873B2Dec 1, 2020
Positive electrode active material for nonaqueous electrolyte secondary batteries, and production method thereof
SUMITOMO METAL MINING CO2 citations71
US10784507B2Sep 22, 2020
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
SUMITOMO METAL MINING CO4 citations71
US10497936B2Dec 3, 2019
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
SUMITOMO METAL MINING CO3 citations71
US11024839B2Jun 1, 2021
Transition metal-containing composite hydroxide and production method thereof, and production method of positive electrode active material for nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO2 citations67
US11811052B2Nov 7, 2023
Positive electrode active material for non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations62
US11777090B2Oct 3, 2023
Positive electrode active material for nonaqueous electrolyte secondary batteries, method for producing same, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations62
US11424448B2Aug 23, 2022
Positive electrode active material for nonaqueous electrolyte secondary batteries, method for producing same, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations62
US11196048B2Dec 7, 2021
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing the same, and nonaqueous electrolyte secondary battery containing the positive electrode active material
SUMITOMO METAL MINING CO0 citations62
US11056681B2Jul 6, 2021
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
SUMITOMO METAL MINING CO0 citations62
US10256505B2Apr 9, 2019
Positive electrode active material for nonaqueous electrolyte secondary batteries, production method thereof, and nonaqueous electrolyte secondary battery including said material
SUMITOMO METAL MINING CO1 citations62
US7351271B2Apr 1, 2008
Method of manufacturing niobium and/or tantalum powder
SUMITOMO METAL MINING CO2 citations62
US11411210B2Aug 9, 2022
Positive electrode active material for non-aqueous electrolyte secondary battery, process for manufacturing positive electrode active material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery using the positive electrode active material
SUMITOMO METAL MINING CO0 citations61
US11404690B2Aug 2, 2022
Transition metal-containing composite hydroxide and manufacturing method thereof, positive electrode active material for a non-aqueous electrolyte secondary battery and manufacturing method thereof, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations61
US11108043B2Aug 31, 2021
Method for producing positive electrode active material for nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO1 citations61
US12418041B2Sep 16, 2025
Positive electrode active material for non-aqueous electrolyte secondary battery and method for manufacturing the same, positive electrode mixed material paste for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations51
US11411214B2Aug 9, 2022
Positive electrode active material for nonaqueous electrolyte secondary batteries, production method thereof, positive electrode mixture material paste for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations51
US11171326B2Nov 9, 2021
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
SUMITOMO METAL MINING CO0 citations51
US11018338B2May 25, 2021
Positive electrode active material for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations51
US8597376B2Dec 3, 2013
Method of producing porous valve metal thin film and thin film produced thereby
SUMITOMO METAL MINING CO0 citations51
US12444740B2Oct 14, 2025
Cathode active material for lithium ion secondary battery and method for producing same
SUMITOMO METAL MINING CO0 citations50
US12237507B2Feb 25, 2025
Nickel composite hydroxide, method for producing nickel composite hydroxide, positive electrode active material for lithium ion secondary battery, method for producing positive electrode active material for lithium ion secondary battery, and lithium ion secondary battery
SUMITOMO METAL MINING CO0 citations50
US11329274B2May 10, 2022
Positive electrode active material for nonaqueous electrolyte secondary batteries, and production method thereof
SUMITOMO METAL MINING CO0 citations50
US10950855B2Mar 16, 2021
Positive electrode active material for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery using the positive electrode active material
SUMITOMO METAL MINING CO0 citations50
US11069884B2Jul 20, 2021
Method for producing positive electrode active material for nonaqueous electrolyte secondary batteries, positive electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations44
US9938459B2Apr 10, 2018
Alkaline earth metal silicate phosphor and method for producing same
SUMITOMO METAL MINING CO0 citations33