Masaaki Tsukiji

Person

Tokyo, 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
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
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
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
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
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
Encoder
- Patent number 4,933,673
- Issue date Jun 12, 1990
- Canon Kabushiki Kaisha
- Koh Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Encoder for forming interference fringes by re-diffracted lights fr...
- Patent number 4,930,895
- Issue date Jun 5, 1990
- Canon Kabushiki Kaisha
- Tetsuharu Nishimura
- G01 - MEASURING TESTING
Information Patent Grant
Optical type encoder including diffraction grating for producing in...
- Patent number 4,912,320
- Issue date Mar 27, 1990
- Canon Kabushiki Kaisha
- Satoshi Ishii
- G01 - MEASURING TESTING

Masaaki Tsukiji

Person

Patents Grantslast 30 patents

Head positioning using a disk drive mounted to a rotating table

Encoder utilizing interference using multi-mode semiconductor laser

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

Optical apparatus for measuring displacement of an object

Device having signal interpolation circuit and displacement measuri...

Displacement measuring apparatus

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

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

Encoder

Encoder for forming interference fringes by re-diffracted lights fr...

Optical type encoder including diffraction grating for producing in...