Inventor
OHARA HIDEKI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “OHARA HIDEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL MINING CO
14 patentsUS10577255B2Mar 3, 2020
Method for producing solutions containing nickel or cobalt
SUMITOMO METAL MINING CO5 citations72
US9938158B2Apr 10, 2018
Hematite manufacturing process and hematite manufactured by same
SUMITOMO METAL MINING CO2 citations72
US10220446B2Mar 5, 2019
Method for producing nickel powder
SUMITOMO METAL MINING CO2 citations71
US9328399B2May 3, 2016
Operating method in hydrometallurgy of nickel oxide ore
SUMITOMO METAL MINING CO2 citations61
US10501334B2Dec 10, 2019
Aqueous cobalt chloride solution refinement method
SUMITOMO METAL MINING CO0 citations51
US10239764B2Mar 26, 2019
Aqueous cobalt chloride solution purification method
SUMITOMO METAL MINING CO0 citations51
US9458038B2Oct 4, 2016
Wastewater treatment process
SUMITOMO METAL MINING CO1 citations51
US9700942B2Jul 11, 2017
Method for producing seed crystals used for producing hydrogen-reduced nickel powder
SUMITOMO METAL MINING CO1 citations50
US9499879B2Nov 22, 2016
Method for producing high-purity cobalt sulfate aqueous solution
SUMITOMO METAL MINING CO1 citations50
US12291762B2May 6, 2025
Method for manufacturing nickel and cobalt-containing solution from hydroxide containing nickel and cobalt
SUMITOMO METAL MINING CO0 citations48
US9702023B2Jul 11, 2017
Method for producing high-purity nickel sulfate
SUMITOMO METAL MINING CO0 citations47
US10766072B2Sep 8, 2020
Method for producing high density nickel powder
SUMITOMO METAL MINING CO0 citations39
US10549351B2Feb 4, 2020
Method for producing nickel powder
SUMITOMO METAL MINING CO0 citations39
US10500644B2Dec 10, 2019
Method for producing nickel powder having low carbon concentration and low sulfur concentration
SUMITOMO METAL MINING CO0 citations39
KOCHI UNIV NATIONAL UNIV CORPORATION
4 patentsUS10118224B2Nov 6, 2018
Method for producing nickel powder
KOCHI UNIV NATIONAL UNIV CORPORATION3 citations69
US10471514B2Nov 12, 2019
Method for producing nickel powder
KOCHI UNIV NATIONAL UNIV CORPORATION0 citations48
US10092955B2Oct 9, 2018
Method for producing nickel powder
KOCHI UNIV NATIONAL UNIV CORPORATION0 citations48
US10434577B2Oct 8, 2019
Method for producing nickel powder
KOCHI UNIV NATIONAL UNIV CORPORATION0 citations37