Inventor
YUDAHIRA HIROFUMI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “YUDAHIRA HIROFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PANASONIC EV ENERGY CO LTD
7 patentsUS7521896B2Apr 21, 2009
Abnormal voltage detector apparatus for detecting voltage abnormality in assembled battery
PANASONIC EV ENERGY CO LTD21 citations92
US6919726B2Jul 19, 2005
Leakage detection apparatus and motor car
PANASONIC EV ENERGY CO LTD35 citations92
US7242196B2Jul 10, 2007
Power supply controller apparatus for detecting welding of contactors
PANASONIC EV ENERGY CO LTD35 citations91
US7710120B2May 4, 2010
Abnormal voltage detector apparatus for detecting voltage abnormality in assembled battery
PANASONIC EV ENERGY CO LTD10 citations84
US7557585B2Jul 7, 2009
Abnormal voltage detection apparatus for detecting voltage abnormality in assembled battery
PANASONIC EV ENERGY CO LTD11 citations83
US7388351B2Jun 17, 2008
Capacity equalizing apparatus for secondary batteries
PANASONIC EV ENERGY CO LTD7 citations73
US6762590B2Jul 13, 2004
Battery power source device and current detection method therefor
PANASONIC EV ENERGY CO LTD12 citations73
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
6 patentsUS6639408B2Oct 28, 2003
Battery voltage measurement device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD68 citations95
US6639409B2Oct 28, 2003
Battery voltage measurement device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51 citations92
US6677758B2Jan 13, 2004
Multiplex voltage measurement apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations91
US6664761B2Dec 16, 2003
Battery voltage detection device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations73
US6462550B2Oct 8, 2002
Battery voltage detection apparatus and detection method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73
US6570387B2May 27, 2003
Multiplex voltage measurement apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations72