Hisashi Ishizuka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming device
- Patent number 11,327,426
- Issue date May 10, 2022
- Oki Electric Industry Co., Ltd.
- Kazuo Nakazawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Image forming apparatus
- Patent number 8,144,019
- Issue date Mar 27, 2012
- Oki Data Corporation
- Hisashi Ishizuka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printing apparatus with energy management and display
- Patent number 8,126,351
- Issue date Feb 28, 2012
- Oki Data Corporation
- Hisashi Ishizuka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus
- Patent number 7,782,491
- Issue date Aug 24, 2010
- Oki Data Corporation
- Hisashi Ishizuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING DEVICE
- Publication number 20200379393
- Publication date Dec 3, 2020
- Oki Data Corporation
- Kazuo NAKAZAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Image Forming Apparatus
- Publication number 20090184817
- Publication date Jul 23, 2009
- Oki Data Corporation
- Hisashi ISHIZUKA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTING APPARATUS
- Publication number 20090110427
- Publication date Apr 30, 2009
- Oki Data Corporation
- Hisashi ISHIZUKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Image forming apparatus
- Publication number 20050052702
- Publication date Mar 10, 2005
- Oki Data Corporation
- Hisashi Ishizuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE