Inventor
TAKAHASHI TADASHI
JP178 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI TADASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
16 patentsUS5768117AJun 16, 1998
Power supply system for supplying electric power to a load through plural converters
HITACHI LTD167 citations99
US5239490AAug 24, 1993
Device for detecting rotation of rotary shaft and rotation controlling apparatus using the same
HITACHI LTD126 citations98
US5561366AOct 1, 1996
Current sensor system and detection method comprising magetoresistance element, biasing conductor and current measurement conductor on insulating substrate
HITACHI LTD85 citations96
US4874053AOct 17, 1989
Torque detecting apparatus
HITACHI LTD118 citations96
US4818939AApr 4, 1989
Apparatus for magnetically detecting position or speed or moving body utilizing bridge circuit with series connected MR elements
HITACHI LTD62 citations96
US4599561AJul 8, 1986
Device for detecting the relative and absolute position of a moving body
HITACHI LTD73 citations96
US4558265ADec 10, 1985
Method and apparatus for position control of an electric motor
HITACHI LTD93 citations96
US4473786ASep 25, 1984
Method for controlling angular position and apparatus therefor
HITACHI LTD59 citations96
US6262561B1Jul 17, 2001
Battery system and electric vehicle using the battery system
HITACHI LTD64 citations95
US7733859B2Jun 8, 2010
Apparatus and method for packet forwarding in layer 2 network
HITACHI LTD25 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
US6002220ADec 14, 1999
Electric power storage air-conditioning system
HITACHI LTD26 citations92
US5638264AJun 10, 1997
Parallelized power supply system providing uninterrupted operation
HITACHI LTD40 citations92
US5559682ASep 24, 1996
Multi-output DC-DC convertor
HITACHI LTD30 citations92
US5453972ASep 26, 1995
Optical disk apparatus
HITACHI LTD34 citations92
US5432644AJul 11, 1995
Disk drive unit having motor components in a compact arrangement
HITACHI LTD48 citations92
ASAHI OPTICAL CO LTD
10 patentsUS6473116B1Oct 29, 2002
Electronic endoscope
ASAHI OPTICAL CO LTD84 citations98
US5871439AFeb 16, 1999
Endoscope system transmitting a magnification ratio to an external processing device
ASAHI OPTICAL CO LTD180 citations98
US5830121ANov 3, 1998
Endoscopic apparatus having an endoscope and a peripheral device wherein total usage of the endoscope is quantified and recorded
ASAHI OPTICAL CO LTD303 citations98
US5967969AOct 19, 1999
Endoscopic apparatus having a peripheral light source
ASAHI OPTICAL CO LTD43 citations96
US4951134AAug 21, 1990
Color tone controller for endoscope
ASAHI OPTICAL CO LTD65 citations95
US6414710B1Jul 2, 2002
Electronic endoscope
ASAHI OPTICAL CO LTD27 citations93
US6322497B1Nov 27, 2001
Electronic endoscope
ASAHI OPTICAL CO LTD23 citations93
US6319198B1Nov 20, 2001
Electronic endoscope
ASAHI OPTICAL CO LTD24 citations93
US4676593AJun 30, 1987
Eyepiece and photographing device for fiberscope
ASAHI OPTICAL CO LTD28 citations93
US5984862ANov 16, 1999
Device for controlling an amount of light of a lighting unit for an endoscope
ASAHI OPTICAL CO LTD22 citations92
PENTAX CORP
8 patentsUS6976954B2Dec 20, 2005
Endoscope system
PENTAX CORP80 citations98
US6977670B2Dec 20, 2005
Method and apparatus for selective registration of endoscopes with database
PENTAX CORP93 citations98
US6937267B1Aug 30, 2005
Electronic endoscope
PENTAX CORP67 citations98
US6677983B1Jan 13, 2004
Electronic endoscope
PENTAX CORP78 citations98
US6545703B1Apr 8, 2003
Electronic endoscope
PENTAX CORP127 citations98
US6690409B1Feb 10, 2004
Electronic endoscope system
PENTAX CORP61 citations96
US7033316B2Apr 25, 2006
Endoscope system
PENTAX CORP30 citations93
US6724418B1Apr 20, 2004
Electronic endoscope
PENTAX CORP35 citations93
CANON KK
8 patentsUS5581377ADec 3, 1996
Image processing method and apparatus for synthesizing a plurality of images based on density values
CANON KK63 citations96
US7403299B2Jul 22, 2008
Querying of copyright host, printing of copyright information and host registration of copyright data
CANON KK16 citations93
US6972856B1Dec 6, 2005
Querying of copyright host, printing of copyright information and host registration of copyright data
CANON KK29 citations93
US5650862AJul 22, 1997
Image signal processing apparatus with improved pixel parallel/line parallel conversion
CANON KK23 citations93
US6094510AJul 25, 2000
Image processing apparatus and method for predicting a compression rate of image data processed to modify an image
CANON KK52 citations92
US5917620AJun 29, 1999
Image reading apparatus
CANON KK37 citations92
US5903363AMay 11, 1999
Image processing apparatus and method
CANON KK24 citations92
US5889596AMar 30, 1999
Controlling a reading unit of an image processing apparatus
CANON KK44 citations92
FUJITSU LTD
2 patentsMITSUBISHI PETROCHEMICAL CO
2 patentsHOYA CORP
1 patentNIDEC READ CORP
1 patentJAPAN POLYCHEM CORP
1 patentSHINETSU CHEMICAL CO
1 patentShowing the top 50 of 178 patents by PatentIndex Score.