Tetsuharu Nishimura

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Head positioning using a disk drive mounted to a rotating table
- Patent number 5,568,337
- Issue date Oct 22, 1996
- Canon Kabushiki Kaisha
- Tadashi Eguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary detector having an optical system for guiding two diffracted...
- Patent number 5,532,819
- Issue date Jul 2, 1996
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus with light-emitting element and method for producing it
- Patent number 5,438,586
- Issue date Aug 1, 1995
- Canon Kabushiki Kaisha
- Satoshi Ishii
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for measuring relative movement using a diffraction grati...
- Patent number 5,436,724
- Issue date Jul 25, 1995
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Measuring method and measuring apparatus for determining the relati...
- Patent number 5,404,220
- Issue date Apr 4, 1995
- Canon Kabushiki Kaisha
- Seiji Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Displacement information detection apparatus for receiving a diverg...
- Patent number 5,390,022
- Issue date Feb 14, 1995
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Displacement detecting device with integral optics
- Patent number 5,283,434
- Issue date Feb 1, 1994
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Encoder utilizing interference using multi-mode semiconductor laser
- Patent number 5,198,873
- Issue date Mar 30, 1993
- Canon Kabushiki Kaisha
- Ko Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Encoder and scanning system using a scale having a non-uniform pitch
- Patent number 5,159,192
- Issue date Oct 27, 1992
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Encoder with high resolving power and accuracy
- Patent number 5,146,085
- Issue date Sep 8, 1992
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of optically detecting position of object and position detec...
- Patent number 5,129,725
- Issue date Jul 14, 1992
- Canon Kabushiki Kaisha
- Koh Ishizuka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Encoder for setting optical path lengths of related beams
- Patent number 5,126,562
- Issue date Jun 30, 1992
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Rotary encoder having a plurality of beams emitted by a diffraction...
- Patent number 5,101,102
- Issue date Mar 31, 1992
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Optical apparatus for measuring displacement of an object
- Patent number 5,067,813
- Issue date Nov 26, 1991
- Canon Kabushiki Kaisha
- Kou Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Device having signal interpolation circuit and displacement measuri...
- Patent number 5,067,089
- Issue date Nov 19, 1991
- Canon Kabushiki Kaisha
- Satoshi Ishii
- G01 - MEASURING TESTING
Information Patent Grant
Displacement measuring apparatus
- Patent number 5,066,130
- Issue date Nov 19, 1991
- Canon Kabushiki Kaisha
- Masaaki Tsukiji
- G01 - MEASURING TESTING
Information Patent Grant
Reference position detecting device utilizing a plurality of photo-...
- Patent number 5,059,791
- Issue date Oct 22, 1991
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Optical scale encoder with light intensity alarm
- Patent number 5,051,579
- Issue date Sep 24, 1991
- Canon Kabushiki Kaisha
- Masaaki Tsukiji
- G01 - MEASURING TESTING
Information Patent Grant
Scale for use for measurement of the displacement of an object to b...
- Patent number 5,038,491
- Issue date Aug 13, 1991
- Canon Kabushiki Kaisha
- Masaaki Tsukiji
- G01 - MEASURING TESTING
Information Patent Grant
Encoder incorporating a displaceable diffraction grating
- Patent number 5,038,032
- Issue date Aug 6, 1991
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Rotary encoder using reflected light
- Patent number 5,036,192
- Issue date Jul 30, 1991
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for detecting a reference position of a rotati...
- Patent number 5,026,985
- Issue date Jun 25, 1991
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Relief diffraction grating encoder
- Patent number 5,021,649
- Issue date Jun 4, 1991
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Diffracted beam encoder
- Patent number 5,017,777
- Issue date May 21, 1991
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Optical type encoder
- Patent number 5,000,542
- Issue date Mar 19, 1991
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Encoder having long length measuring stroke
- Patent number 4,998,798
- Issue date Mar 12, 1991
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Displacement measuring apparatus
- Patent number 4,979,826
- Issue date Dec 25, 1990
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Rotary encoder using multiple diffracted beams having co-incident p...
- Patent number 4,975,570
- Issue date Dec 4, 1990
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Encoder with diffraction grating and multiply diffracted light
- Patent number 4,970,388
- Issue date Nov 13, 1990
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Interferometric rotating condition detection apparatus
- Patent number 4,967,072
- Issue date Oct 30, 1990
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING

Tetsuharu Nishimura

Person

Patents Grantslast 30 patents

Head positioning using a disk drive mounted to a rotating table

Rotary detector having an optical system for guiding two diffracted...

Apparatus with light-emitting element and method for producing it

Apparatus for measuring relative movement using a diffraction grati...

Measuring method and measuring apparatus for determining the relati...

Displacement information detection apparatus for receiving a diverg...

Displacement detecting device with integral optics

Encoder utilizing interference using multi-mode semiconductor laser

Encoder and scanning system using a scale having a non-uniform pitch

Encoder with high resolving power and accuracy

Method of optically detecting position of object and position detec...

Encoder for setting optical path lengths of related beams

Rotary encoder having a plurality of beams emitted by a diffraction...

Optical apparatus for measuring displacement of an object

Device having signal interpolation circuit and displacement measuri...

Displacement measuring apparatus

Reference position detecting device utilizing a plurality of photo-...

Optical scale encoder with light intensity alarm

Scale for use for measurement of the displacement of an object to b...

Encoder incorporating a displaceable diffraction grating

Rotary encoder using reflected light

Method and apparatus for detecting a reference position of a rotati...

Relief diffraction grating encoder

Diffracted beam encoder

Optical type encoder

Encoder having long length measuring stroke

Displacement measuring apparatus

Rotary encoder using multiple diffracted beams having co-incident p...

Encoder with diffraction grating and multiply diffracted light

Interferometric rotating condition detection apparatus