Inventor
YAMAJI KOJI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “YAMAJI KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL MINING CO
18 patentsUS11605815B2Mar 14, 2023
Nonaqueous electrolyte secondary battery positive electrode active material and method for producing same, and nonaqueous electrolyte secondary battery which uses positive electrode active material
SUMITOMO METAL MINING CO2 citations72
US10236507B2Mar 19, 2019
Nickel-manganese composite hydroxide particles, method for producing same, cathode active material for non-aqueous electrolyte secondary batteries, method for producing same, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO6 citations71
US12381215B2Aug 5, 2025
Nonaqueous electrolyte secondary battery positive electrode active material and method for producing same, and nonaqueous electrolyte secondary battery which uses positive electrode active material
SUMITOMO METAL MINING CO0 citations62
US12381214B2Aug 5, 2025
Non-aqueous electrolyte secondary battery positive electrode active material and method for producing same, and non-aqueous electrolyte secondary battery which uses positive electrode active material
SUMITOMO METAL MINING CO0 citations62
US11990618B2May 21, 2024
Positive electrode active material for non-aqueous electrolyte secondary battery and process for producing same, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations62
US11967709B2Apr 23, 2024
Nonaqueous electrolyte secondary battery positive electrode active material and method for producing same, and nonaqueous electrolyte secondary battery which uses positive electrode active material
SUMITOMO METAL MINING CO0 citations62
US11855283B2Dec 26, 2023
Method for evaluating a characteristic of a nonaqueous electrolyte secondary battery positive electrode active material
SUMITOMO METAL MINING CO0 citations62
US11784310B2Oct 10, 2023
Non-aqueous electrolyte secondary battery positive electrode active material, method for producing same, and non-aqueous electrolyte secondary battery which uses positive electrode active material
SUMITOMO METAL MINING CO1 citations62
US11196047B2Dec 7, 2021
Positive electrode active material for non-aqueous electrolyte secondary battery and process for producing same, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations62
US11742483B2Aug 29, 2023
Nickel manganese composite hydroxide and method for producing same, positive electrode active material for nonaqueous electrolyte secondary battery and method for producing same, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations61
US11476460B2Oct 18, 2022
Nickel manganese composite hydroxide and method for producing same, positive electrode active material for nonaqueous electrolyte secondary battery and method for producing same, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO1 citations61
US11121368B2Sep 14, 2021
Positive electrode material for nonaqueous electrolyte secondary battery and method for producing the same, and positive electrode composite material paste, and nonaqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations61
US12195352B2Jan 14, 2025
Aluminum-coated nickel cobalt containing composite hydroxide and method for manufacturing same, cathode active material for non-aqueous electrolyte secondary battery and method for manufacturing same, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO0 citations60
US10858265B2Dec 8, 2020
Aluminum-coated nickel cobalt containing composite hydroxide and method for manufacturing same, cathode active material for non-aqueous electrolyte secondary battery and method for manufacturing same, and non-aqueous electrolyte secondary battery
SUMITOMO METAL MINING CO1 citations60
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
US10361433B2Jul 23, 2019
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing the same, and nonaqueous electrolyte secondary battery including the same
SUMITOMO METAL MINING CO0 citations49
US10297825B2May 21, 2019
Process for producing nickel cobalt aluminum composite hydroxide and process for producing positive electrode active material for non-aqueous electrolyte secondary batteries
SUMITOMO METAL MINING CO0 citations41
US10084188B2Sep 25, 2018
Positive electrode active substance for nonaqueous electrolyte secondary cell, method for producing same, and nonaqueous electrolyte secondary cell using positive electrode active substance
SUMITOMO METAL MINING CO0 citations40