Keiichi SERIZAWA

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Container and content containing body, and method for producing con...
- Patent number 12,097,997
- Issue date Sep 24, 2024
- Ricoh Company, Ltd.
- Keiichi Serizawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Marking device, medium, container, and marking method
- Patent number 11,738,408
- Issue date Aug 29, 2023
- Ricoh Company, Ltd.
- Rie Hirayama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Autonomous traveling device
- Patent number 10,444,758
- Issue date Oct 15, 2019
- Ricoh Company, Ltd.
- Keiichi Serizawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Printed matter delivery system, image forming apparatus, and printe...
- Patent number 9,772,809
- Issue date Sep 26, 2017
- Ricoh Company, Ltd.
- Kazunori Bannai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical scanning device and image forming apparatus
- Patent number 9,436,004
- Issue date Sep 6, 2016
- Ricoh Company, Ltd.
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Grant
Optical scanner with housing to support light sources and image for...
- Patent number 9,333,766
- Issue date May 10, 2016
- Ricoh Company, Ltd.
- Kazunori Watanabe
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanner and image forming apparatus including same
- Patent number 9,261,698
- Issue date Feb 16, 2016
- Ricoh Company, Ltd.
- Kazunori Watanabe
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanning apparatus, method for performing the same and imag...
- Patent number 9,170,523
- Issue date Oct 27, 2015
- Ricoh Company, Limited
- Hiroshi Johno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical scanner and image forming apparatus including same
- Patent number 8,928,709
- Issue date Jan 6, 2015
- Ricoh Company, Ltd.
- Keiichi Serizawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanner and image forming apparatus including same
- Patent number 8,780,159
- Issue date Jul 15, 2014
- Ricoh Company, Ltd.
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Grant
Optical scanner and image forming apparatus including same
- Patent number 8,754,918
- Issue date Jun 17, 2014
- Ricoh Company, Ltd.
- Hiroshi Johno
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical writer and image forming apparatus including same
- Patent number 8,711,195
- Issue date Apr 29, 2014
- Ricoh Company, Ltd.
- Keiichi Serizawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanner and image forming apparatus including same
- Patent number 8,610,753
- Issue date Dec 17, 2013
- Ricoh Company, Ltd.
- Keiichi Serizawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Curve correction mechanism, optical scanner, and image forming appa...
- Patent number 8,503,055
- Issue date Aug 6, 2013
- Ricoh Company, Ltd.
- Keiichi Serizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical scanner and image forming apparatus including same
- Patent number 8,471,883
- Issue date Jun 25, 2013
- Ricoh Company, Ltd.
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Grant
Optical scanning device and image forming apparatus
- Patent number 8,368,986
- Issue date Feb 5, 2013
- Ricoh Company, Ltd.
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Grant
Optical scanning device and image forming apparatus
- Patent number 8,184,352
- Issue date May 22, 2012
- Ricoh Company, Limited
- Hiroshi Johno
- G02 - OPTICS
Information Patent Grant
Curvature correction device, optical scanning unit, and image formi...
- Patent number 8,107,148
- Issue date Jan 31, 2012
- Ricoh Company, Ltd.
- Susumu Narita
- G02 - OPTICS
Information Patent Grant
Optical scanning unit and image forming apparatus incorporating same
- Patent number 8,027,075
- Issue date Sep 27, 2011
- Ricoh Company, Ltd.
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light-orientation adjusting unit, optical writing unit having light...
- Patent number 7,782,501
- Issue date Aug 24, 2010
- Ricoh Company
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical scanning apparatus and image forming apparatus
- Patent number 7,443,556
- Issue date Oct 28, 2008
- Ricoh Company, Ltd.
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Grant
Optical scanner and image forming apparatus
- Patent number 7,355,617
- Issue date Apr 8, 2008
- Ricoh Company, Limited
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for image forming capable of preventing image...
- Patent number 7,319,475
- Issue date Jan 15, 2008
- Ricoh Company, Ltd.
- Yasumasa Tomita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical scanner and image forming apparatus
- Patent number 7,256,813
- Issue date Aug 14, 2007
- Ricoh Company, Limited
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LASER PROCESSING METHOD AND LASER PROCESSING APPARATUS
- Publication number 20240173805
- Publication date May 30, 2024
- Keiichi SERIZAWA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
PATTERN FORMING APPARATUS
- Publication number 20230278141
- Publication date Sep 7, 2023
- Keiichi SERIZAWA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
LASER IRRADIATION APPARATUS AND LASER IRRADIATION METHOD
- Publication number 20230173610
- Publication date Jun 8, 2023
- RICOH COMPANY, LTD.
- Hiroyuki Tanabe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
CONTAINER AND CONTENT CONTAINING BODY, AND METHOD FOR PRODUCING CON...
- Publication number 20220388724
- Publication date Dec 8, 2022
- RICOH COMPANY, LTD.
- Keiichi SERIZAWA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
CONTAINER AND CONTENT CONTAINING BODY, AND METHOD FOR PRODUCING CON...
- Publication number 20220388324
- Publication date Dec 8, 2022
- Masako YOSHII
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
MARKING DEVICE, MEDIUM, CONTAINER, AND MARKING METHOD
- Publication number 20220266392
- Publication date Aug 25, 2022
- RICOH COMPANY, LTD.
- Rie Hirayama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD AND SYSTEM FOR MANUFACTURING CONTAINER PRODUCT
- Publication number 20220097414
- Publication date Mar 31, 2022
- Ricoh Company
- Rie HIRAYAMA
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
Information Patent Application
AUTONOMOUS TRAVELING DEVICE
- Publication number 20170153641
- Publication date Jun 1, 2017
- Keiichi SERIZAWA
- G08 - SIGNALLING
Information Patent Application
PRINTED MATTER DELIVERY SYSTEM, IMAGE FORMING APPARATUS, AND PRINTE...
- Publication number 20160274840
- Publication date Sep 22, 2016
- RICOH COMPANY, LTD.
- Kazunori BANNAI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20140146375
- Publication date May 29, 2014
- RICOH COMPANY, LIMITED
- Keiichi SERIZAWA
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING APPARATUS, METHOD FOR PERFORMING THE SAME AND IMAG...
- Publication number 20140146121
- Publication date May 29, 2014
- RICOH COMPANY, LIMITED
- Hiroshi JOHNO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140146332
- Publication date May 29, 2014
- RICOH COMPANY, LTD.
- Kazunori WATANABE
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20130251407
- Publication date Sep 26, 2013
- RICOH COMPANY, LTD.
- Keiichi SERIZAWA
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20130106971
- Publication date May 2, 2013
- RICOH COMPANY, LTD.
- Kazunori Watanabe
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
OPTICAL WRITER AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20120300008
- Publication date Nov 29, 2012
- Keiichi Serizawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Optical Scanner And Image Forming Apparatus Including Same
- Publication number 20120200655
- Publication date Aug 9, 2012
- RICOH COMPANY, LTD.
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Application
Optical scanner and image forming apparatus including same
- Publication number 20120062685
- Publication date Mar 15, 2012
- RICOH COMPANY, LTD.
- Keiichi Serizawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20110316958
- Publication date Dec 29, 2011
- RICOH COMPANY, LTD.
- HIROSHI JOHNO
- G02 - OPTICS
Information Patent Application
CURVE CORRECTION MECHANISM, OPTICAL SCANNER, AND IMAGE FORMING APPA...
- Publication number 20110310455
- Publication date Dec 22, 2011
- Keiichi Serizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical scanning device and image forming apparatus
- Publication number 20110199663
- Publication date Aug 18, 2011
- RICOH COMPANY, LIMITED
- Hiroshi Johno
- G02 - OPTICS
Information Patent Application
Optical scanning device and image forming apparatus
- Publication number 20110199664
- Publication date Aug 18, 2011
- RICOH COMPANY, LIMITED
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20100033787
- Publication date Feb 11, 2010
- RICOH COMPANY, LTD.
- Keiichi SERIZAWA
- G02 - OPTICS
Information Patent Application
Curvature correction device, optical scanning unit, and image formi...
- Publication number 20090009836
- Publication date Jan 8, 2009
- Ricoh Company, Ltd.
- Susumu Narita
- G02 - OPTICS
Information Patent Application
Optical scanning unit and image forming apparatus incorporating same
- Publication number 20080218828
- Publication date Sep 11, 2008
- Ricoh Company, Ltd.
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SCANNER AND IMAGE FORMING APPARATUS
- Publication number 20070247510
- Publication date Oct 25, 2007
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light-orientation adjusting unit, optical writing unit having light...
- Publication number 20070098460
- Publication date May 3, 2007
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS
- Publication number 20060209375
- Publication date Sep 21, 2006
- Keiichi Serizawa
- G02 - OPTICS
Information Patent Application
Method and apparatus for image forming capable of preventing image...
- Publication number 20050052719
- Publication date Mar 10, 2005
- Yasumasa Tomita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical scanner and image forming apparatus
- Publication number 20040169716
- Publication date Sep 2, 2004
- Keiichi Serizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Keiichi SERIZAWA

Person

Patents Grantslast 30 patents

Container and content containing body, and method for producing con...

Marking device, medium, container, and marking method

Autonomous traveling device

Printed matter delivery system, image forming apparatus, and printe...

Optical scanning device and image forming apparatus

Optical scanner with housing to support light sources and image for...

Optical scanner and image forming apparatus including same

Optical scanning apparatus, method for performing the same and imag...

Optical scanner and image forming apparatus including same

Optical scanner and image forming apparatus including same

Optical scanner and image forming apparatus including same

Optical writer and image forming apparatus including same

Optical scanner and image forming apparatus including same

Curve correction mechanism, optical scanner, and image forming appa...

Optical scanner and image forming apparatus including same

Optical scanning device and image forming apparatus

Optical scanning device and image forming apparatus

Curvature correction device, optical scanning unit, and image formi...

Optical scanning unit and image forming apparatus incorporating same

Light-orientation adjusting unit, optical writing unit having light...

Optical scanning apparatus and image forming apparatus

Optical scanner and image forming apparatus

Method and apparatus for image forming capable of preventing image...

Optical scanner and image forming apparatus

Patents Applicationslast 30 patents

LASER PROCESSING METHOD AND LASER PROCESSING APPARATUS

PATTERN FORMING APPARATUS

LASER IRRADIATION APPARATUS AND LASER IRRADIATION METHOD

CONTAINER AND CONTENT CONTAINING BODY, AND METHOD FOR PRODUCING CON...

CONTAINER AND CONTENT CONTAINING BODY, AND METHOD FOR PRODUCING CON...

MARKING DEVICE, MEDIUM, CONTAINER, AND MARKING METHOD

METHOD AND SYSTEM FOR MANUFACTURING CONTAINER PRODUCT

AUTONOMOUS TRAVELING DEVICE

PRINTED MATTER DELIVERY SYSTEM, IMAGE FORMING APPARATUS, AND PRINTE...

OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS

OPTICAL SCANNING APPARATUS, METHOD FOR PERFORMING THE SAME AND IMAG...

OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCORPORATING SAME

OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME

OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME

OPTICAL WRITER AND IMAGE FORMING APPARATUS INCLUDING SAME

Optical Scanner And Image Forming Apparatus Including Same

Optical scanner and image forming apparatus including same

OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME

CURVE CORRECTION MECHANISM, OPTICAL SCANNER, AND IMAGE FORMING APPA...

Optical scanning device and image forming apparatus

Optical scanning device and image forming apparatus

OPTICAL SCANNER AND IMAGE FORMING APPARATUS INCLUDING SAME

Curvature correction device, optical scanning unit, and image formi...

Optical scanning unit and image forming apparatus incorporating same

OPTICAL SCANNER AND IMAGE FORMING APPARATUS

Light-orientation adjusting unit, optical writing unit having light...

OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS

Method and apparatus for image forming capable of preventing image...

Optical scanner and image forming apparatus