Keiji Ishizuka

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Decoding apparatus and method
- Patent number 6,313,767
- Issue date Nov 6, 2001
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Coding method and apparatus therefor
- Patent number 6,026,197
- Issue date Feb 15, 2000
- Canon Kabushiki Kaisha
- Hidefumi Ohsawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Coding/decoding apparatus and coding/decoding method
- Patent number 5,848,194
- Issue date Dec 8, 1998
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Arithmetic encoding with carry over processing
- Patent number 5,784,497
- Issue date Jul 21, 1998
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device separation structure and semiconductor device improved in wi...
- Patent number 5,665,630
- Issue date Sep 9, 1997
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coding method and apparatus therefor
- Patent number 5,655,032
- Issue date Aug 5, 1997
- Canon Kabushiki Kaisha
- Hidefumi Ohsawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Semiconductor light emitting element driver circuit
- Patent number 5,514,989
- Issue date May 7, 1996
- Canon Kabushiki Kaisha
- Toshiaki Sato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit device having a test function for checking circuit operation
- Patent number 5,410,247
- Issue date Apr 25, 1995
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- G01 - MEASURING TESTING
Information Patent Grant
Method of making a semiconductor device with buried electrode
- Patent number 5,364,802
- Issue date Nov 15, 1994
- Canon Kabushiki Kaisha
- Yuzo Kataoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with buried electrode
- Patent number 5,306,934
- Issue date Apr 26, 1994
- Canon Kabushiki Kaisha
- Yuzo Kataoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Image signal correcting in image data processing requiring only sma...
- Patent number 5,262,873
- Issue date Nov 16, 1993
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor device with isolating groove containing single crysta...
- Patent number 5,200,639
- Issue date Apr 6, 1993
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Differential phase shift keying demodulator
- Patent number 4,714,892
- Issue date Dec 22, 1987
- Canon Kabushiki Kaisha
- Keiji Ishizuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Keiji Ishizuka

Person

Patents Grantslast 30 patents

Decoding apparatus and method

Coding method and apparatus therefor

Coding/decoding apparatus and coding/decoding method

Arithmetic encoding with carry over processing

Device separation structure and semiconductor device improved in wi...

Coding method and apparatus therefor

Semiconductor light emitting element driver circuit

Circuit device having a test function for checking circuit operation

Method of making a semiconductor device with buried electrode

Semiconductor device with buried electrode

Image signal correcting in image data processing requiring only sma...

Semiconductor device with isolating groove containing single crysta...

Differential phase shift keying demodulator