Inventor

OKUMURA TAKEFUMI

JP17 patents

⚠️ This page may combine multiple inventors who share the name “OKUMURA TAKEFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OKUMURA TAKEFUMI

HITACHI LTD

Cationic conductor, its intermediate, and lithium secondary battery using the conductor

Lithium secondary battery

Cationic conductor, its intermediate, and lithium secondary battery using the conductor

Polymerizable boric compounds, methods of producing the same, polymerizable compositions and ionic-conductive polymeric electrolytes

Polymerizable boric compounds, methods of producing the same, polymerizable compositions and ionic-conductive polymeric electrolytes

OKUMURA TAKEFUMI

Lithium secondary battery

Lithium secondary battery

Lithium secondary battery

Lithium-ion battery and method for regenerating the same

HITACHI VEHICLE ENERGY LTD

Lithium secondary battery

YAMAMOTO TSUNENORI

Secondary battery system including an arrangement to determine a temporary increase in direct current resistance of the secondary battery

NOF CORP

Boron-containing compound, ion-conductive polymer and polyelectrolyte for electrochemical devices

HITACHI CHEMICAL CO LTD

Lithium ion battery

ABE TOSHIO

Electrode for lithium secondary battery

SASAKI HIRONORI

System for controlling charging and discharging of lithium ion battery

GUNJI AKIRA

Lithium-ion rechargeable battery module, vehicle with the battery module and generating system with the battery module

KIMURA TAKAYUKI

Lithium ion battery