Inventor
IWAHANA FUMIKAZU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “IWAHANA FUMIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FURUKAWA ELECTRIC CO LTD
5 patentsUS7362074B2Apr 22, 2008
Method for determining deterioration of accumulator battery, method for measuring internal impedance of secondary battery, equipment for measuring internal impedance of secondary battery, equipment for determining deterioration of secondary battery, and power supply system
FURUKAWA ELECTRIC CO LTD68 citations96
US7626394B2Dec 1, 2009
Method and apparatus for determining deterioration of secondary battery, and power supply system therewith
FURUKAWA ELECTRIC CO LTD69 citations95
US7788052B2Aug 31, 2010
Method and device for determining state of health of the battery, and battery power supply system
FURUKAWA ELECTRIC CO LTD41 citations92
US7616003B2Nov 10, 2009
Method for determining deterioration of accumulator battery, method for measuring internal impedance of secondary battery, equipment for measuring internal impedance of secondary battery, equipment for determining deterioration of secondary battery, and power supply system
FURUKAWA ELECTRIC CO LTD28 citations90
US7525284B2Apr 28, 2009
Charging rate estimating method, charging rate estimating unit and battery system
FURUKAWA ELECTRIC CO LTD19 citations82
IWANE NORIYASU
2 patentsUS8129996B2Mar 6, 2012
Method and apparatus for determining deterioration of secondary battery, and power supply system therewith
IWANE NORIYASU17 citations91
US8078416B2Dec 13, 2011
Remaining electrical charge/remaining capacity estimating method, battery state sensor and battery power source system
IWANE NORIYASU13 citations83