Masahiko Igaki

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing rotary scale, rotary scale, rotary encoder,...
- Patent number 10,094,684
- Issue date Oct 9, 2018
- CANON PRECISION, INC.
- Haruhiko Horiguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encoder that detects displacement of an object, and lens apparatus...
- Patent number 9,329,058
- Issue date May 3, 2016
- Canon Kabushiki Kaisha
- Haruhiko Horiguchi
- G01 - MEASURING TESTING
Information Patent Grant
Velocity detection apparatus having two detectors
- Patent number 8,805,022
- Issue date Aug 12, 2014
- Canon Kabushiki Kaisha
- Yasumichi Arimitsu
- G01 - MEASURING TESTING
Information Patent Grant
Displacement detection apparatus and method of correcting error of...
- Patent number 8,527,236
- Issue date Sep 3, 2013
- Canon Kabushiki Kaisha
- Shinichiro Takahama
- G01 - MEASURING TESTING
Information Patent Grant
Rotary encoder and method of assembling the same
- Patent number 8,487,237
- Issue date Jul 16, 2013
- Canon Kabushiki Kaisha
- Ikuo Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder for obtaining displacement information of object
- Patent number 8,422,025
- Issue date Apr 16, 2013
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Origin detection method for optical encoder
- Patent number 7,732,757
- Issue date Jun 8, 2010
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Detection head
- Patent number 7,622,698
- Issue date Nov 24, 2009
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Origin detection method for optical encoder
- Patent number 7,425,697
- Issue date Sep 16, 2008
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder capable of detecting absolute position
- Patent number 7,391,011
- Issue date Jun 24, 2008
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder for measuring displacement
- Patent number 7,385,179
- Issue date Jun 10, 2008
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder and apparatus using optical encoder
- Patent number 7,358,865
- Issue date Apr 15, 2008
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with discontinuous optical grating
- Patent number 7,348,544
- Issue date Mar 25, 2008
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder
- Patent number 7,332,708
- Issue date Feb 19, 2008
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder
- Patent number 7,326,919
- Issue date Feb 5, 2008
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder for improved detection of the absolute position of...
- Patent number 7,282,699
- Issue date Oct 16, 2007
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder
- Patent number 7,217,916
- Issue date May 15, 2007
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Sensor signal processor
- Patent number 7,184,914
- Issue date Feb 27, 2007
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder
- Patent number 7,132,647
- Issue date Nov 7, 2006
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Rotation angle detection apparatus and resin rotary disk for the same
- Patent number 7,122,785
- Issue date Oct 17, 2006
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Sensor signal processor
- Patent number 7,099,790
- Issue date Aug 29, 2006
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Electrical division circuit for an optical encoder
- Patent number 7,087,888
- Issue date Aug 8, 2006
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Liquid container, method for detecting liquid amount in liquid cont...
- Patent number 7,055,926
- Issue date Jun 6, 2006
- Canon Kabushiki Kaisha
- Yoshinori Kojima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Sensor using roof mirror/roof prism array scale, and apparatus equi...
- Patent number 7,045,770
- Issue date May 16, 2006
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Postal information input apparatus and a data display method thereof
- Patent number 7,043,054
- Issue date May 9, 2006
- NEC Corporation
- Masahiko Igaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Package for optical semiconductor
- Patent number 7,026,654
- Issue date Apr 11, 2006
- Canon Kabushiki Kaisha
- Masahiko Igaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sensor using roof mirror/roof prism array scale, and apparatus equi...
- Patent number 7,022,974
- Issue date Apr 4, 2006
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Rotation angle detection apparatus and rotary disk for same
- Patent number 7,019,281
- Issue date Mar 28, 2006
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder
- Patent number 7,019,282
- Issue date Mar 28, 2006
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Grant
Reflection scale and displacement measurement apparatus using the same
- Patent number 6,975,408
- Issue date Dec 13, 2005
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING ROTARY SCALE, ROTARY SCALE, ROTARY ENCODER,...
- Publication number 20190017848
- Publication date Jan 17, 2019
- CANON PRECISION INC.
- Haruhiko Horiguchi
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
METHOD OF MANUFACTURING ROTARY SCALE, ROTARY SCALE, ROTARY ENCODER,...
- Publication number 20160216137
- Publication date Jul 28, 2016
- CANON PRECISION INC.
- Haruhiko Horiguchi
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
ENCODER, LENS APPARATUS, AND CAMERA
- Publication number 20130286194
- Publication date Oct 31, 2013
- Canon Kabushiki Kaisha
- Haruhiko Horiguchi
- G02 - OPTICS
Information Patent Application
ROTARY ENCODER AND METHOD OF ASSEMBLING THE SAME
- Publication number 20120049051
- Publication date Mar 1, 2012
- CANON PRECISION INC.
- Ikuo WATANABE
- G01 - MEASURING TESTING
Information Patent Application
DISPLACEMENT DETECTION APPARATUS AND METHOD OF CORRECTING ERROR OF...
- Publication number 20110218760
- Publication date Sep 8, 2011
- Canon Kabushiki Kaisha
- Shinichiro TAKAHAMA
- G01 - MEASURING TESTING
Information Patent Application
VELOCITY DETECTION APPARATUS HAVING TWO DETECTORS
- Publication number 20110150288
- Publication date Jun 23, 2011
- Canon Kabushiki Kaisha
- Yasumichi Arimitsu
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER FOR OBTAINING DISPLACEMENT INFORMATION OF OBJECT
- Publication number 20110063622
- Publication date Mar 17, 2011
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
MEASUREMENT APPARATUS AND OPTICAL APPARATUS WITH THE SAME
- Publication number 20110001985
- Publication date Jan 6, 2011
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
ORIGIN DETECTION METHOD FOR OPTICAL ENCODER
- Publication number 20090050794
- Publication date Feb 26, 2009
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
ORIGIN DETECTION METHOD FOR OPTICAL ENCODER
- Publication number 20080073493
- Publication date Mar 27, 2008
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
REFLECTIVE SENSOR
- Publication number 20080018911
- Publication date Jan 24, 2008
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER
- Publication number 20070181791
- Publication date Aug 9, 2007
- CANON KABUSHIKI KAISHA
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
METHOD AND APPARATUS FOR MEASURING DISPLACEMENT
- Publication number 20070102630
- Publication date May 10, 2007
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER AND APPARATUS USING OPTICAL ENCODER
- Publication number 20070047050
- Publication date Mar 1, 2007
- Canon Kabushiki Kaisha
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
Optical Encoder
- Publication number 20070018086
- Publication date Jan 25, 2007
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
SENSOR SIGNAL PROCESSOR
- Publication number 20060247884
- Publication date Nov 2, 2006
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Optical encoder
- Publication number 20060192092
- Publication date Aug 31, 2006
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Rotation angle detection apparatus and rotary disk for same
- Publication number 20060118709
- Publication date Jun 8, 2006
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
Sensor using roof mirror/roof prism array scale, and apparatus equi...
- Publication number 20060028653
- Publication date Feb 9, 2006
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
Optical encoder
- Publication number 20050274880
- Publication date Dec 15, 2005
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Optical encoder
- Publication number 20050263689
- Publication date Dec 1, 2005
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Optical encoder
- Publication number 20050205768
- Publication date Sep 22, 2005
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Sensor signal processor
- Publication number 20050090998
- Publication date Apr 28, 2005
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Optical encoder
- Publication number 20040262505
- Publication date Dec 30, 2004
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Optical encoder
- Publication number 20040173736
- Publication date Sep 9, 2004
- Canon Kabushiki Kaisha
- Akio Atsuta
- G01 - MEASURING TESTING
Information Patent Application
Liquid container, method for detecting liquid amount in liquid cont...
- Publication number 20040109039
- Publication date Jun 10, 2004
- Canon Kabushiki Kaisha
- Yoshinori Kojima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Rotation angle detection apparatus and rotary disk for same
- Publication number 20040031914
- Publication date Feb 19, 2004
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
Liquid container with identifying means and method for detecting st...
- Publication number 20040017445
- Publication date Jan 29, 2004
- Canon Kabushiki Kaisha
- Yoshinori Kojima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Sensor using roof mirror/roof prism array scale, and apparatus equi...
- Publication number 20030218125
- Publication date Nov 27, 2003
- Masahiko Igaki
- G01 - MEASURING TESTING
Information Patent Application
Package for optical semiconductor
- Publication number 20030189213
- Publication date Oct 9, 2003
- Masahiko Igaki
- H01 - BASIC ELECTRIC ELEMENTS

Masahiko Igaki

Person

Patents Grantslast 30 patents

Method of manufacturing rotary scale, rotary scale, rotary encoder,...

Encoder that detects displacement of an object, and lens apparatus...

Velocity detection apparatus having two detectors

Displacement detection apparatus and method of correcting error of...

Rotary encoder and method of assembling the same

Optical encoder for obtaining displacement information of object

Origin detection method for optical encoder

Detection head

Origin detection method for optical encoder

Optical encoder capable of detecting absolute position

Optical encoder for measuring displacement

Optical encoder and apparatus using optical encoder

Optical encoder with discontinuous optical grating

Optical encoder

Optical encoder

Optical encoder for improved detection of the absolute position of...

Optical encoder

Sensor signal processor

Optical encoder

Rotation angle detection apparatus and resin rotary disk for the same

Sensor signal processor

Electrical division circuit for an optical encoder

Liquid container, method for detecting liquid amount in liquid cont...

Sensor using roof mirror/roof prism array scale, and apparatus equi...

Postal information input apparatus and a data display method thereof

Package for optical semiconductor

Sensor using roof mirror/roof prism array scale, and apparatus equi...

Rotation angle detection apparatus and rotary disk for same

Optical encoder

Reflection scale and displacement measurement apparatus using the same

Patents Applicationslast 30 patents

METHOD OF MANUFACTURING ROTARY SCALE, ROTARY SCALE, ROTARY ENCODER,...

METHOD OF MANUFACTURING ROTARY SCALE, ROTARY SCALE, ROTARY ENCODER,...

ENCODER, LENS APPARATUS, AND CAMERA

ROTARY ENCODER AND METHOD OF ASSEMBLING THE SAME

DISPLACEMENT DETECTION APPARATUS AND METHOD OF CORRECTING ERROR OF...

VELOCITY DETECTION APPARATUS HAVING TWO DETECTORS

OPTICAL ENCODER FOR OBTAINING DISPLACEMENT INFORMATION OF OBJECT

MEASUREMENT APPARATUS AND OPTICAL APPARATUS WITH THE SAME

ORIGIN DETECTION METHOD FOR OPTICAL ENCODER

ORIGIN DETECTION METHOD FOR OPTICAL ENCODER

REFLECTIVE SENSOR

OPTICAL ENCODER

METHOD AND APPARATUS FOR MEASURING DISPLACEMENT

OPTICAL ENCODER AND APPARATUS USING OPTICAL ENCODER

Optical Encoder

SENSOR SIGNAL PROCESSOR

Optical encoder

Rotation angle detection apparatus and rotary disk for same

Sensor using roof mirror/roof prism array scale, and apparatus equi...

Optical encoder

Optical encoder

Optical encoder

Sensor signal processor

Optical encoder

Optical encoder

Liquid container, method for detecting liquid amount in liquid cont...

Rotation angle detection apparatus and rotary disk for same

Liquid container with identifying means and method for detecting st...

Sensor using roof mirror/roof prism array scale, and apparatus equi...

Package for optical semiconductor