Inventor
OTSUKI KEITARO
JP21 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKI KEITARO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
11 patentsUS8932762B2Jan 13, 2015
Active material and positive electrode and lithium-ion second battery using same
TDK CORP11 citations83
US10985371B2Apr 20, 2021
Negative electrode active material layer with controlled reflectance and lithium ion secondary battery
TDK CORP2 citations71
US11757098B2Sep 12, 2023
Negative electrode active material layer with controlled reflectance and lithium ion secondary battery
TDK CORP0 citations61
US11539047B2Dec 27, 2022
Positive electrode and lithium ion secondary battery
TDK CORP0 citations61
US10312523B2Jun 4, 2019
Lithium ion secondary battery
TDK CORP0 citations52
US10062924B2Aug 28, 2018
Lithium-ion secondary battery with a negative electrode containing vanadium
TDK CORP0 citations52
US9601802B2Mar 21, 2017
Nonaqueous electrolyte for lithium-ion secondary battery containing vanadium and lithium-ion secondary battery containing same
TDK CORP0 citations52
US9263736B2Feb 16, 2016
Positive electrode material for lithium ion secondary battery, positive electrode for lithium ion secondary battery, and lithium ion secondary battery
TDK CORP0 citations52
US8906255B2Dec 9, 2014
Lithium-ion secondary battery
TDK CORP0 citations52
US10283773B2May 7, 2019
Active material, method of manufacturing active material, and lithium-ion secondary battery
TDK CORP0 citations51
US11594730B2Feb 28, 2023
Electrode and lithium ion secondary battery
TDK CORP0 citations50
SANO ATSUSHI
8 patentsUS8936871B2Jan 20, 2015
Active material and positive electrode and lithium-ion second battery using same
SANO ATSUSHI11 citations83
US8821763B2Sep 2, 2014
Active material and method of manufacturing active material
SANO ATSUSHI11 citations83
US8445135B2May 21, 2013
Method of manufacturing active material, active material, electrode, and lithium-ion secondary battery
SANO ATSUSHI6 citations83
US8993171B2Mar 31, 2015
Active material, electrode containing the active material, lithium secondary battery including the electrode, and method for making active material
SANO ATSUSHI6 citations82
US10230108B2Mar 12, 2019
Active material, method for manufacturing active material, electrode, and lithium ion secondary battery
SANO ATSUSHI3 citations72
US10611639B2Apr 7, 2020
Active material, method for manufacturing active material, electrode, lithium ion secondary battery, and method for manufacturing lithium ion secondary battery
SANO ATSUSHI3 citations71
US8142750B2Mar 27, 2012
Method of manufacturing active material
SANO ATSUSHI4 citations62
US8734987B2May 27, 2014
Active material, electrode containing same, lithium-ion secondary battery with the electrode, and method of manufacturing active material
SANO ATSUSHI2 citations61