Inventor
HIRATSUKA MASARU
JP18 patents
⚠️ This page may combine multiple inventors who share the name “HIRATSUKA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
12 patentsUS5415947AMay 16, 1995
Battery cartridge having a recess for detecting misuse and/or recessed terminals
SONY CORP107 citations97
US5680027AOct 21, 1997
Battery pack including internal capacity monitor for monitoring groups of battery cells
SONY CORP85 citations95
US6746798B1Jun 8, 2004
Rectangular and sealed battery
SONY CORP38 citations92
US5796238AAug 18, 1998
Battery pack
SONY CORP48 citations92
US5029013AJul 2, 1991
Apparatus for editing video tapes
SONY CORP29 citations92
US7563535B2Jul 21, 2009
Battery pack with insulating film sheath material and method of producing the same
SONY CORP12 citations83
US7166389B2Jan 23, 2007
Battery pack and method for producing same
SONY CORP11 citations82
US7348762B2Mar 25, 2008
Battery pack and method for producing battery pack
SONY CORP8 citations73
US7534525B2May 19, 2009
Battery pack and method for producing battery pack
SONY CORP2 citations62
US7396613B2Jul 8, 2008
Battery pack and method for producing same
SONY CORP5 citations61
US10431793B2Oct 1, 2019
Method of producing a separator and method of producing a microporous membrane
SONY CORP0 citations49
US10497965B2Dec 3, 2019
Battery pack and manufacturing method therefor
SONY CORP0 citations47