Inventor
ONAKA TAKESHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “ONAKA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
6 patentsUS6795322B2Sep 21, 2004
Power supply with uninterruptible function
HITACHI LTD369 citations97
US6643152B2Nov 4, 2003
DC power supply device
HITACHI LTD26 citations92
US6603671B2Aug 5, 2003
Synchronized rectifier voltage step down DC-DC converter and control circuit therefor
HITACHI LTD22 citations92
US6507507B2Jan 14, 2003
DC power supply device
HITACHI LTD41 citations92
US6381152B1Apr 30, 2002
Method of driving semiconductor switching device in non-saturated state and power supply apparatus containing such a switching device
HITACHI LTD32 citations92
US6496395B2Dec 17, 2002
Direct-current power-supply apparatus, control circuit thereof and semiconductor integrated circuit device for power supply
HITACHI LTD28 citations91