Inventor
SANPEI AKIRA
JP10 patents
⚠️ This page may combine multiple inventors who share the name “SANPEI AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
8 patentsUS5547775AAug 20, 1996
Circuit for preventing overcharge and overdischarge of secondary batteries
SONY CORP224 citations98
US5530336AJun 25, 1996
Battery protection circuit
SONY CORP133 citations97
US5493197AFeb 20, 1996
Battery charge control circuit
SONY CORP152 citations96
US5304915AApr 19, 1994
Overcharge preventing device and overdischarge preventing device for a secondary battery
SONY CORP77 citations95
US5237259AAug 17, 1993
Charging method for secondary battery
SONY CORP76 citations95
US5122751AJun 16, 1992
Device for detecting residual capacity of a battery both in load and no load conditions
SONY CORP26 citations92
US7339354B2Mar 4, 2008
Rechargeable battery charging method and apparatus
SONY CORP13 citations83
USRE45919EMar 8, 2016
Control device and method and power supply device
SONY CORP0 citations49