Inventor
IWABUCHI AKIO
JP34 patents
⚠️ This page may combine multiple inventors who share the name “IWABUCHI AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANKEN ELECTRIC CO LTD
22 patentsUS7852137B2Dec 14, 2010
Normally-off electronic switching device for on-off control of electric circuit
SANKEN ELECTRIC CO LTD44 citations92
US7825435B2Nov 2, 2010
Diode-like composite semiconductor device
SANKEN ELECTRIC CO LTD34 citations92
US7492614B2Feb 17, 2009
Switching power supply apparatus
SANKEN ELECTRIC CO LTD27 citations92
US6737722B2May 18, 2004
Lateral transistor having graded base region, semiconductor integrated circuit and fabrication method thereof
SANKEN ELECTRIC CO LTD41 citations92
US7688049B2Mar 30, 2010
Level shift circuit and power supply device
SANKEN ELECTRIC CO LTD18 citations84
US7764089B2Jul 27, 2010
Device for driving switching elements
SANKEN ELECTRIC CO LTD10 citations83
US7999289B2Aug 16, 2011
Monolithic integrated circuit of a field-effect semiconductor device and a diode
SANKEN ELECTRIC CO LTD9 citations81
US7071527B2Jul 4, 2006
Semiconductor element and manufacturing method thereof
SANKEN ELECTRIC CO LTD10 citations74
US7859138B2Dec 28, 2010
Drive circuit
SANKEN ELECTRIC CO LTD2 citations63
US7132725B2Nov 7, 2006
Semiconductor device
SANKEN ELECTRIC CO LTD3 citations63
US7074663B2Jul 11, 2006
Method of making semiconductor device including a first set of windows in a mask with larger ratio of surface area than a second set of windows
SANKEN ELECTRIC CO LTD2 citations63
US6982473B2Jan 3, 2006
Bipolar transistor
SANKEN ELECTRIC CO LTD5 citations63
US8039322B2Oct 18, 2011
Semiconductor device and manufacturing method thereof
SANKEN ELECTRIC CO LTD4 citations62
US6524949B2Feb 25, 2003
Method of forming low-resistance contact electrodes in semiconductor devices
SANKEN ELECTRIC CO LTD4 citations62
US7592683B2Sep 22, 2009
Semiconductor device with improved electrostatic tolerance
SANKEN ELECTRIC CO LTD3 citations60
US7550945B2Jun 23, 2009
Voltage measurement device
SANKEN ELECTRIC CO LTD3 citations60
US7023178B2Apr 4, 2006
Voltage measuring apparatus
SANKEN ELECTRIC CO LTD4 citations60
US5811854ASep 22, 1998
One piece semiconductor device having a power fet and a low level signal element with laterally spaced buried layers
SANKEN ELECTRIC CO LTD3 citations54
US9153682B2Oct 6, 2015
Semiconductor device
SANKEN ELECTRIC CO LTD1 citations52
USRE40965ENov 10, 2009
Method of forming low-resistance contact electrodes in semiconductor devices
SANKEN ELECTRIC CO LTD0 citations52
US7135364B2Nov 14, 2006
Method of fabricating semiconductor integrated circuit
SANKEN ELECTRIC CO LTD0 citations52
US7859019B2Dec 28, 2010
Normally-off field-effect semiconductor device
SANKEN ELECTRIC CO LTD1 citations49
IWABUCHI AKIO
6 patentsUS9093432B2Jul 28, 2015
Semiconductor device
IWABUCHI AKIO4 citations72
US8519442B2Aug 27, 2013
High electron mobility transistor having a high speed switching function
IWABUCHI AKIO2 citations61
US8217687B2Jul 10, 2012
Capacitive load driver
IWABUCHI AKIO2 citations59
US8492792B2Jul 23, 2013
Semiconductor device and manufacturing method thereof
IWABUCHI AKIO0 citations51
US9293570B2Mar 22, 2016
Semiconductor device, electric circuit using the same and method of controlling electric circuit
IWABUCHI AKIO0 citations40
US8823061B2Sep 2, 2014
Semiconductor device
IWABUCHI AKIO0 citations40