Tetsuro HIROTA

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Powder supply device and image forming apparatus incorporating same
- Patent number 10,317,814
- Issue date Jun 11, 2019
- Ricoh Company, Ltd.
- Nobuo Takami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder detection device, image forming apparatus, powder detection...
- Patent number 10,228,632
- Issue date Mar 12, 2019
- Ricoh Company, Ltd.
- Mitsufumi Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet size detector and image processing apparatus
- Patent number 10,114,323
- Issue date Oct 30, 2018
- Ricoh Company, Ltd.
- Tetsuro Hirota
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet material thickness detection device, sheet material anomaly d...
- Patent number 10,099,876
- Issue date Oct 16, 2018
- Ricoh Company, Ltd.
- Tetsuro Hirota
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Fluid detection apparatus to detect a quantity of fluid using a vib...
- Patent number 10,031,016
- Issue date Jul 24, 2018
- Ricoh Company, Ltd.
- Kazuho Satoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder amount detector, powder supply device, and image forming app...
- Patent number 9,817,335
- Issue date Nov 14, 2017
- Ricoh Company, Ltd.
- Naohiro Kawashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, and image forming apparatus and process cartridg...
- Patent number 9,645,538
- Issue date May 9, 2017
- Ricoh Company, Ltd.
- Masahiro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder detector, image forming apparatus including same, and powder...
- Patent number 9,523,664
- Issue date Dec 20, 2016
- Ricoh Company, Ltd.
- Tetsuro Hirota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder detector, developing device, process cartridge, image formin...
- Patent number 9,523,940
- Issue date Dec 20, 2016
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic permeability detector, developing device, image forming ap...
- Patent number 9,507,291
- Issue date Nov 29, 2016
- Ricoh Company, Ltd.
- Tetsuro Hirota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic permeability detector, developing device, image forming ap...
- Patent number 9,507,290
- Issue date Nov 29, 2016
- Ricoh Company, Ltd.
- Tetsuro Hirota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic permeability detector, developing device, image forming ap...
- Patent number 9,170,233
- Issue date Oct 27, 2015
- Ricoh Company, Ltd.
- Tetsuro Hirota
- G01 - MEASURING TESTING
Information Patent Grant
Development device and image forming apparatus incorporating same
- Patent number 9,158,228
- Issue date Oct 13, 2015
- Ricoh Company, Ltd.
- Yoshiko Ogawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,948,638
- Issue date Feb 3, 2015
- Ricoh Company, Ltd.
- Yuji Ishikura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, and image forming apparatus and process cartrid...
- Patent number 8,929,782
- Issue date Jan 6, 2015
- Ricoh Company, Ltd.
- Osamu Endou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, image forming apparatus, and image forming method
- Patent number 8,897,681
- Issue date Nov 25, 2014
- Ricoh Company, Ltd.
- Tetsuro Hirota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge incorporating same, and image...
- Patent number 8,824,935
- Issue date Sep 2, 2014
- Ricoh Company, Ltd.
- Hideyasu Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge incorporating same, and image...
- Patent number 8,594,540
- Issue date Nov 26, 2013
- Ricoh Company, Limited
- Tetsuro Hirota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus
- Patent number 8,433,211
- Issue date Apr 30, 2013
- Ricoh Company, Ltd.
- Masanori Horike
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device and image forming apparatus
- Patent number 8,376,494
- Issue date Feb 19, 2013
- Ricoh Company, Limited
- Tetsuro Hirota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with developer passage amount control elect...
- Patent number 8,259,142
- Issue date Sep 4, 2012
- Ricoh Company, Limited
- Tetsuro Hirota
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus and impact position displacement correction...
- Patent number 8,186,799
- Issue date May 29, 2012
- Ricoh Company, Ltd.
- Tetsu Morino
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid-jet device, image forming apparatus, and method for adjustin...
- Patent number 8,157,342
- Issue date Apr 17, 2012
- Ricoh Company, Ltd.
- Tetsu Morino
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus and defective nozzle detection method
- Patent number 8,066,348
- Issue date Nov 29, 2011
- Ricoh Company, Ltd.
- Tetsuro Hirota
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus and method of correcting deviation of shoot...
- Patent number 7,992,953
- Issue date Aug 9, 2011
- Ricoh Company, Ltd.
- Mamoru Yorimoto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus, landing position shift correction method,...
- Patent number 7,914,096
- Issue date Mar 29, 2011
- Ricoh Company, Ltd.
- Takumi Hagiwara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet printing apparatus
- Patent number 6,331,052
- Issue date Dec 18, 2001
- Ricoh Company, Ltd.
- Taeko Murai
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printing apparatus for increasing efficiency in transmitting image...
- Patent number 6,147,766
- Issue date Nov 14, 2000
- Ricoh Company, Ltd.
- Yoshiaki Hanyu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ink jet recording apparatus and method for automatically changing r...
- Patent number 6,053,597
- Issue date Apr 25, 2000
- Ricoh Company, Ltd.
- Tetsuro Hirota
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink-jet head driving system
- Patent number 5,821,953
- Issue date Oct 13, 1998
- Ricoh Company, Ltd.
- Tomoaki Nakano
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
SHEET MATERIAL THICKNESS DETECTION DEVICE, SHEET MATERIAL ANOMALY D...
- Publication number 20170174457
- Publication date Jun 22, 2017
- RICOH COMPANY, LTD.
- Tetsuro HIROTA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170168418
- Publication date Jun 15, 2017
- Nobuo TAKAMI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER AMOUNT DETECTOR, POWDER SUPPLY DEVICE, AND IMAGE FORMING APP...
- Publication number 20170115597
- Publication date Apr 27, 2017
- NAOHIRO KAWASHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FLUID DETECTION APPARATUS, FLUID DETECTION METHOD, AND STORAGE MEDIUM
- Publication number 20170074713
- Publication date Mar 16, 2017
- KAZUHO SATOH
- G01 - MEASURING TESTING
Information Patent Application
DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDG...
- Publication number 20160378039
- Publication date Dec 29, 2016
- Masahiro WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER DETECTION DEVICE, IMAGE FORMING APPARATUS, POWDER DETECTION...
- Publication number 20160349101
- Publication date Dec 1, 2016
- RICOH COMPANY, LTD.
- Mitsufumi Yamamoto
- G01 - MEASURING TESTING
Information Patent Application
POWDER DETECTOR, DEVELOPING DEVICE, PROCESS CARTRIDGE, IMAGE FORMIN...
- Publication number 20160170328
- Publication date Jun 16, 2016
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER DETECTOR, IMAGE FORMING APPARATUS INCLUDING SAME, AND POWDER...
- Publication number 20160116860
- Publication date Apr 28, 2016
- Tetsuro HIROTA
- G01 - MEASURING TESTING
Information Patent Application
MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING AP...
- Publication number 20160041495
- Publication date Feb 11, 2016
- Tetsuro HIROTA
- G01 - MEASURING TESTING
Information Patent Application
MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING AP...
- Publication number 20160041497
- Publication date Feb 11, 2016
- Tetsuro HIROTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SHEET SIZE DETECTOR AND IMAGE PROCESSING APPARATUS
- Publication number 20150268028
- Publication date Sep 24, 2015
- RICOH COMPANY, LTD.
- Tetsuro HIROTA
- G01 - MEASURING TESTING
Information Patent Application
MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING AP...
- Publication number 20140312886
- Publication date Oct 23, 2014
- Tetsuro HIROTA
- G01 - MEASURING TESTING
Information Patent Application
DEVELOPMENT DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRID...
- Publication number 20130216277
- Publication date Aug 22, 2013
- Osamu ENDOU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130071147
- Publication date Mar 21, 2013
- Yoshiko OGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
- Publication number 20120063797
- Publication date Mar 15, 2012
- Tetsuro HIROTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...
- Publication number 20120063815
- Publication date Mar 15, 2012
- Hideyasu SEKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120057891
- Publication date Mar 8, 2012
- Yuji ISHIKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...
- Publication number 20110182626
- Publication date Jul 28, 2011
- Tetsuro HIROTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20110064432
- Publication date Mar 17, 2011
- Masanori Horike
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20110043589
- Publication date Feb 24, 2011
- Tetsuro HIROTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS WITH DEVELOPER PASSAGE AMOUNT CONTROL ELECT...
- Publication number 20100214364
- Publication date Aug 26, 2010
- Tetsuro HIROTA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS AND DEFECTIVE NOZZLE DETECTION METHOD
- Publication number 20090015621
- Publication date Jan 15, 2009
- Tetsuro Hirota
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS, METHOD FOR CORRECTING DISPLACEMENT OF LAND...
- Publication number 20080231649
- Publication date Sep 25, 2008
- Kenichi Kawabata
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS AND IMPACT POSITION DISPLACEMENT CORRECTION...
- Publication number 20080225067
- Publication date Sep 18, 2008
- RICOH COMPANY, LTD.
- Tetsu Morino
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS, LANDING POSITION SHIFT CORRECTION METHOD,...
- Publication number 20080225098
- Publication date Sep 18, 2008
- Takumi HAGIWARA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID-JET DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR ADJUSTIN...
- Publication number 20080225068
- Publication date Sep 18, 2008
- RICOH COMPANY, LTD.
- Tetsu MORINO
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD OF CORRECTING DEVIATION OF SHOOT...
- Publication number 20080225066
- Publication date Sep 18, 2008
- RICOH COMPANY, LTD.
- Mamoru YORIMOTO
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Tetsuro HIROTA

Person

Patents Grantslast 30 patents

Powder supply device and image forming apparatus incorporating same

Powder detection device, image forming apparatus, powder detection...

Sheet size detector and image processing apparatus

Sheet material thickness detection device, sheet material anomaly d...

Fluid detection apparatus to detect a quantity of fluid using a vib...

Powder amount detector, powder supply device, and image forming app...

Developing device, and image forming apparatus and process cartridg...

Powder detector, image forming apparatus including same, and powder...

Powder detector, developing device, process cartridge, image formin...

Magnetic permeability detector, developing device, image forming ap...

Magnetic permeability detector, developing device, image forming ap...

Magnetic permeability detector, developing device, image forming ap...

Development device and image forming apparatus incorporating same

Image forming apparatus

Development device, and image forming apparatus and process cartrid...

Developing device, image forming apparatus, and image forming method

Development device, process cartridge incorporating same, and image...

Development device, process cartridge incorporating same, and image...

Developing device, process cartridge, and image forming apparatus

Image forming device and image forming apparatus

Image forming apparatus with developer passage amount control elect...

Image forming apparatus and impact position displacement correction...

Liquid-jet device, image forming apparatus, and method for adjustin...

Image forming apparatus and defective nozzle detection method

Image forming apparatus and method of correcting deviation of shoot...

Image forming apparatus, landing position shift correction method,...

Ink jet printing apparatus

Printing apparatus for increasing efficiency in transmitting image...

Ink jet recording apparatus and method for automatically changing r...

Ink-jet head driving system

Patents Applicationslast 30 patents

SHEET MATERIAL THICKNESS DETECTION DEVICE, SHEET MATERIAL ANOMALY D...

POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

POWDER AMOUNT DETECTOR, POWDER SUPPLY DEVICE, AND IMAGE FORMING APP...

FLUID DETECTION APPARATUS, FLUID DETECTION METHOD, AND STORAGE MEDIUM

DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDG...

POWDER DETECTION DEVICE, IMAGE FORMING APPARATUS, POWDER DETECTION...

POWDER DETECTOR, DEVELOPING DEVICE, PROCESS CARTRIDGE, IMAGE FORMIN...

POWDER DETECTOR, IMAGE FORMING APPARATUS INCLUDING SAME, AND POWDER...

MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING AP...

MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING AP...

SHEET SIZE DETECTOR AND IMAGE PROCESSING APPARATUS

MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING AP...

DEVELOPMENT DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRID...

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...

IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE...

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS WITH DEVELOPER PASSAGE AMOUNT CONTROL ELECT...

IMAGE FORMING APPARATUS AND DEFECTIVE NOZZLE DETECTION METHOD

IMAGE FORMING APPARATUS, METHOD FOR CORRECTING DISPLACEMENT OF LAND...

IMAGE FORMING APPARATUS AND IMPACT POSITION DISPLACEMENT CORRECTION...

IMAGE FORMING APPARATUS, LANDING POSITION SHIFT CORRECTION METHOD,...

LIQUID-JET DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR ADJUSTIN...

IMAGE FORMING APPARATUS AND METHOD OF CORRECTING DEVIATION OF SHOOT...