Inventor
MATSUZAWA AKIRA
JP95 patents
⚠️ This page may combine multiple inventors who share the name “MATSUZAWA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
29 patentsUS6603172B1Aug 5, 2003
Semiconductor device and method of manufacturing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD104 citations98
US5945935AAug 31, 1999
A/D converter and A/D conversion method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD132 citations98
US6119250ASep 12, 2000
Semiconductor integrated circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD71 citations96
US6083785AJul 4, 2000
Method of manufacturing semiconductor device having resistor film
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD80 citations96
US5550544AAug 27, 1996
Signal converter, noise shaper, AD converter and DA converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD55 citations96
US5465093ANov 7, 1995
Analog-to-digital converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD60 citations96
US6424184B1Jul 23, 2002
Frequency-voltage conversion circuit, delay amount judgement circuit, system having frequency-voltage conversion circuit, method of adjusting input/output characteristics of frequency-voltage conversion circuit, and apparatus for automatically adjusting input
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations93
US6326772B2Dec 4, 2001
Power supply apparatus with energy return for reuse
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations93
US6211720B1Apr 3, 2001
Logic circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US6072353AJun 6, 2000
Logic circuit with overdriven off-state switching
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations93
US5835552ANov 10, 1998
Time counting circuit and counter circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US5812626ASep 22, 1998
Time counting circuit sampling circuit skew adjusting circuit and logic analyzing circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations93
US5307067AApr 26, 1994
Folding circuit and analog-to-digital converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations93
US6707413B2Mar 16, 2004
A/D converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US6310492B1Oct 30, 2001
CMOS semiconductor integrated circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US5999022ADec 7, 1999
Signal transmission driver circuit, receiver circuit, and method thereof for transmitting and receiving information based on multiple periods and/or a delay function
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations92
US5164728ANov 17, 1992
A/D converter with complementary interpolating voltage dividers
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US4496935AJan 29, 1985
Analog-digital converter with linear characteristic restoration circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations92
US5748132AMay 5, 1998
Interpolation type A/D converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations84
US5402128AMar 28, 1995
Analog-to-digital converter with capacitor network
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations82
US4931797AJun 5, 1990
Folding circuit and serial-type A/D converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations78
US6201382B1Mar 13, 2001
Low noise and energy loss power supply apparatus and voltage converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US5999586ADec 7, 1999
Time counting circuit and pulse signal generating method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations74
US5982841ANov 9, 1999
Time counting circuit, pulse converting circuit and FM demodulating circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US5973523AOct 26, 1999
Time counting circuit, sampling circuit, skew adjusting circuit, and logic analyzing circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US5936437AAug 10, 1999
Analog-to-digital converter with capacitor network
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US5920209AJul 6, 1999
Time counting circuit, sampling circuit, skew adjusting circuit, and logic analyzing circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US5828717AOct 27, 1998
Time counting circuit and counter circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74
US5321402AJun 14, 1994
Analog-to-digital conversion method and device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
SEIKO EPSON CORP
14 patentsUS6378996B1Apr 30, 2002
Ink-jet recording head and ink-jet recording apparatus
SEIKO EPSON CORP110 citations98
US6502930B1Jan 7, 2003
Ink jet recording head, method for manufacturing the same, and ink jet recorder
SEIKO EPSON CORP71 citations96
US6089701AJul 18, 2000
Ink jet recording head having reduced stress concentration near the boundaries of pressure generating chambers
SEIKO EPSON CORP75 citations96
US9651433B2May 16, 2017
Force detector, robot, electronic component carrying apparatus, electronic component testing apparatus, part processing apparatus, and moving object
SEIKO EPSON CORP14 citations93
US9481089B2Nov 1, 2016
Force detector and robot
SEIKO EPSON CORP22 citations93
US6284434B1Sep 4, 2001
Piezoelectric thin film element fabrication method
SEIKO EPSON CORP20 citations93
US6142614ANov 7, 2000
Piezoelectric actuator using passivation film or interlayer insulating film along with an insulating film to obtain better adhesion
SEIKO EPSON CORP36 citations92
US7686421B2Mar 30, 2010
Fluid injection head, method of manufacturing the injection head, and fluid injection device
SEIKO EPSON CORP11 citations84
US10209152B2Feb 19, 2019
Force sensor unit and robot arm including a wire cable routed from inside a casing to outside of the casing
SEIKO EPSON CORP7 citations82
USRE39474EJan 23, 2007
Method of manufacturing an ink jet recording head having reduced stress concentration near the boundaries of the pressure generating chambers
SEIKO EPSON CORP9 citations74
US6929355B2Aug 16, 2005
Ink-jet recording head, manufacturing method of the same, and ink-jet recording apparatus
SEIKO EPSON CORP11 citations74
US6712456B2Mar 30, 2004
Ink-jet recording head, manufacturing method of the same and ink-jet recording apparatus
SEIKO EPSON CORP9 citations74
US6416680B1Jul 9, 2002
Ink-jet recording head, its manufacturing method and ink-jet recording device
SEIKO EPSON CORP12 citations74
US6390608B1May 21, 2002
Ink jet recording head, its manufacturing method and inkjet recording device
SEIKO EPSON CORP9 citations74
ADVANTEST CORP
5 patentsUS7605738B2Oct 20, 2009
A-D converter and A-D convert method
ADVANTEST CORP28 citations92
US7755521B1Jul 13, 2010
A-D convert apparatus, D-A convert apparatus and adjustment method
ADVANTEST CORP12 citations84
US7609184B2Oct 27, 2009
D-A convert apparatus and A-D convert apparatus
ADVANTEST CORP15 citations84
US7477177B2Jan 13, 2009
A-D converter, A-D convert method, and A-D convert program
ADVANTEST CORP10 citations84
US7479914B2Jan 20, 2009
A-D converter and A-D convert method
ADVANTEST CORP6 citations74
PANASONIC CORP
1 patentTOKYO INST TECH
1 patentShowing the top 50 of 95 patents by PatentIndex Score.