Inventor
KAMINAGA YASUO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “KAMINAGA YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
11 patentsUS7551462B2Jun 23, 2009
Soft switching DC-DC converter including a buck converter and a boost converter sharing a common transformer
HITACHI LTD25 citations92
US5880602AMar 9, 1999
Input and output buffer circuit
HITACHI LTD45 citations92
US5614848AMar 25, 1997
High-speed semiconductor integrated circuit device composed of CMOS and bipolar transistors
HITACHI LTD22 citations92
US5604417AFeb 18, 1997
Semiconductor integrated circuit device
HITACHI LTD21 citations92
US7557546B2Jul 7, 2009
Unidirectional DC-DC converter
HITACHI LTD13 citations83
US5663659ASep 2, 1997
Semiconductor integrated circuit device comprising CMOS transistors and differentiator
HITACHI LTD15 citations82
US6160275ADec 12, 2000
Semiconductor gate array device
HITACHI LTD20 citations81
US6728811B2Apr 27, 2004
Input/output device for connection and disconnection of active lines
HITACHI LTD8 citations72
US6393509B2May 21, 2002
Input/output device for connection and disconnection of active lines
HITACHI LTD10 citations72
US6289407B1Sep 11, 2001
Input/output device for connection and disconnection of active lines
HITACHI LTD5 citations72
US6038615AMar 14, 2000
Input/output device for connection and disconnection of active lines
HITACHI LTD15 citations72