Inventor · Sumoto, JP

Satoshi Narukawa

30Patents
14h-index
52Co-inventors
84Inventor score

Filing activity: Aug 31, 1977 → May 28, 2010

Most-cited inventions

PatentTitleAreaCited byStatus
US6373226B1 Method of controlling discharge of a plurality of rechargeable batteries, and battery assembly Emerging Cross-Sectional Technologies 61 Expired
US6106973A Thin type battery with laminated sheathing Emerging Cross-Sectional Technologies 57 Expired
US4133856A Process for producing a positive electrode for a non-aqueous cell Electricity 46 Expired
US5880575A Charge-discharge control circuit, over-charge prevention circuit, and over-discharge prevention circuit Emerging Cross-Sectional Technologies 42 Expired
US5556722A Tightly sealed prismatic battery Emerging Cross-Sectional Technologies 37 Expired
US6534216B1 Positive electrode for non-aqueous electrolyte cell and manufacturing method of the same Emerging Cross-Sectional Technologies 33 Expired
US6482550B1 Non-aqueous secondary battery Emerging Cross-Sectional Technologies 33 Expired
US5354629A Monaqueous electrolyte battery Electricity 31 Expired
US5834133A Laser-sealed battery Emerging Cross-Sectional Technologies 26 Expired
US5443925A Nonaqueous electrolyte battery Emerging Cross-Sectional Technologies 25 Expired
US6395426B1 Non-aqueous electrolyte cell having a positive electrode with Ti-attached LiCoO2 Emerging Cross-Sectional Technologies 21 Expired
US5508122A Battery with a spiral electrode unit Emerging Cross-Sectional Technologies 20 Expired
US6048639A Thin type sealed cell and producing method thereof Emerging Cross-Sectional Technologies 19 Expired
US4783383A Sealed type battery provided with safety valve means and method of manufacturing same Emerging Cross-Sectional Technologies 18 Expired
US5746780A Method of manufacturing a battery containing a non-circular spiral electrode unit Emerging Cross-Sectional Technologies 13 Expired
US4216247A Method of manufacturing positive electrode for nonaqueous cell Electricity 12 Expired
US5770332A Prismatic battery Emerging Cross-Sectional Technologies 10 Expired
US5663013A Battery with a spacer between the electrode group and the cover Emerging Cross-Sectional Technologies 9 Expired
US6187473A Cylindrical alkaline storage battery and manufacturing method of the same Emerging Cross-Sectional Technologies 9 Expired
US6337153B1 Sealed non-aqueous electrolyte cell having a casing of a sheet of laminated material Emerging Cross-Sectional Technologies 8 Expired
US4399202A Lithium battery Electricity 8 Expired
US4371597A Layer-built cell Emerging Cross-Sectional Technologies 7 Expired
US6566013B2 Nonaqueous secondary battery Emerging Cross-Sectional Technologies 7 Expired
US4315061A Battery with internal electrical connectors Electricity 5 Expired
US6579648B2 Nonaqueous secondary battery Emerging Cross-Sectional Technologies 3 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.