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Keisuke HAYASHI
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Liquid discharge head, liquid discharge unit, and device of dischar...
Patent number
10,391,770
Issue date
Aug 27, 2019
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid discharge head, liquid discharge device, and liquid discharg...
Patent number
10,124,585
Issue date
Nov 13, 2018
Ricoh Company, Ltd.
Toshiaki Masuda
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid ejection head and image forming apparatus incorporating same
Patent number
9,463,623
Issue date
Oct 11, 2016
Ricoh Company, Ltd.
Daisuke Takagi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Piezoelectric element, liquid droplet discharging head, liquid drop...
Patent number
9,375,923
Issue date
Jun 28, 2016
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method of producing electromechanical transducer element, electrome...
Patent number
9,362,478
Issue date
Jun 7, 2016
Ricoh Company, Ltd.
Toshiaki Masuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Liquid droplet discharge head, image forming apparatus including sa...
Patent number
9,242,464
Issue date
Jan 26, 2016
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Goggle type display system
Patent number
9,201,244
Issue date
Dec 1, 2015
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Display system
Patent number
9,086,567
Issue date
Jul 21, 2015
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Liquid discharge head and image forming apparatus
Patent number
9,067,427
Issue date
Jun 30, 2015
Ricoh Company, Ltd.
Keisuke Hayashi
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Liquid droplet ejection head, image forming apparatus, and manufact...
Patent number
9,033,481
Issue date
May 19, 2015
Ricoh Company, Ltd.
Takashi Kinokuni
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Image forming apparatus, liquid-jet head, and method for manufactur...
Patent number
9,033,456
Issue date
May 19, 2015
Ricoh Company, Ltd.
Tatsuya Shimoda
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid discharge head, method of manufacturing liquid discharge hea...
Patent number
8,926,068
Issue date
Jan 6, 2015
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid-jet head and image forming apparatus
Patent number
8,888,260
Issue date
Nov 18, 2014
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Shift register circuit, driving circuit of display device, and disp...
Patent number
8,872,750
Issue date
Oct 28, 2014
Semiconductor Energy Laboratory Co., Ltd.
Yukio Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Liquid drop ejecting head, image forming device, and method of manu...
Patent number
8,801,153
Issue date
Aug 12, 2014
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid ejecting head and image forming apparatus
Patent number
8,628,172
Issue date
Jan 14, 2014
Ricoh Company, Ltd.
Takashi Kinokuni
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Piezoelectric actuator, liquid ejection head, and image forming app...
Patent number
8,425,013
Issue date
Apr 23, 2013
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Liquid discharging head and image forming apparatus including the l...
Patent number
8,042,918
Issue date
Oct 25, 2011
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Nonvolatile memory and manufacturing method thereof
Patent number
7,989,873
Issue date
Aug 2, 2011
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Liquid jet head, method of manufacturing liquid jet head, and image...
Patent number
7,871,153
Issue date
Jan 18, 2011
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Electronic view finder utilizing an organic electroluminescence dis...
Patent number
7,697,052
Issue date
Apr 13, 2010
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Liquid discharging head using piezoelectric actuator and image form...
Patent number
7,651,205
Issue date
Jan 26, 2010
Ricoh Company, Ltd.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Shift register circuit, driving circuit of display device, and disp...
Patent number
7,528,816
Issue date
May 5, 2009
Semiconductor Energy Laboratory Co., Ltd.
Yukio Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile memory and manufacturing method thereof
Patent number
7,368,338
Issue date
May 6, 2008
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Portable information processing system
Patent number
7,158,098
Issue date
Jan 2, 2007
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Nonvolatile memory and manufacturing method thereof
Patent number
7,078,769
Issue date
Jul 18, 2006
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Shift register circuit, driving circuit of display device and displ...
Patent number
7,075,510
Issue date
Jul 11, 2006
Semiconductor Energy Laboratory Co., Ltd.
Yukio Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Portable information processing system
Patent number
6,867,752
Issue date
Mar 15, 2005
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Liquid crystal projector
Patent number
6,856,304
Issue date
Feb 15, 2005
Semiconductor Energy Laboratory Co., Ltd.
Yoshiharu Hirakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Nonvolatile memory and manufacturing method thereof
Patent number
6,756,640
Issue date
Jun 29, 2004
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE UNIT, AND DEVICE OF DISCHAR...
Publication number
20180345666
Publication date
Dec 6, 2018
RICOH COMPANY, LTD.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND LIQUID DISCHARG...
Publication number
20170100934
Publication date
Apr 13, 2017
RICOH COMPANY, LTD.
Toshiaki MASUDA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DROPLET DISCHARGE HEAD, IMAGE FORMING APPARATUS INCLUDING SA...
Publication number
20160023465
Publication date
Jan 28, 2016
RICOH COMPANY, LTD.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
METHOD OF PRODUCING ELECTROMECHANICAL TRANSDUCER ELEMENT, ELECTROME...
Publication number
20150171307
Publication date
Jun 18, 2015
Toshiaki MASUDA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
GOGGLE TYPE DISPLAY SYSTEM
Publication number
20150145752
Publication date
May 28, 2015
Semiconductor Energy Laboratory Co., Ltd.
Shunpei YAMAZAKI
G02 - OPTICS
Information
Patent Application
PIEZOELECTRIC ELEMENT, LIQUID DROPLET DISCHARGING HEAD, LIQUID DROP...
Publication number
20150097898
Publication date
Apr 9, 2015
Keisuke HAYASHI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID EJECTION HEAD AND IMAGE FORMING APPARATUS INCORPORATING SAME
Publication number
20140267497
Publication date
Sep 18, 2014
RICOH COMPANY, LTD.
DAISUKE TAKAGI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD AND IMAGE FORMING APPARATUS
Publication number
20130307911
Publication date
Nov 21, 2013
RICOH COMPANY, LTD.
Keisuke Hayashi
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
LIQUID-JET HEAD AND IMAGE FORMING APPARATUS
Publication number
20130242012
Publication date
Sep 19, 2013
RICOH COMPANY, LTD.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DROP EJECTING HEAD, IMAGE FORMING DEVICE, AND METHOD OF MANU...
Publication number
20130242004
Publication date
Sep 19, 2013
RICOH COMPANY, LTD.
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
IMAGE FORMING APPARATUS, LIQUID-JET HEAD, AND METHOD FOR MANUFACTUR...
Publication number
20130241990
Publication date
Sep 19, 2013
RICOH COMPANY, LTD.
Tatsuya Shimoda
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID EJECTING HEAD AND IMAGE FORMING APPARATUS
Publication number
20130182040
Publication date
Jul 18, 2013
RICOH COMPANY, LTD.
Takashi Kinokuni
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DROPLET EJECTION HEAD, IMAGE FORMING APPARATUS, AND MANUFACT...
Publication number
20130155159
Publication date
Jun 20, 2013
RICOH COMPANY, LTD.
Takashi Kinokuni
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGE HEAD, METHOD OF MANUFACTURING LIQUID DISCHARGE HEA...
Publication number
20120182356
Publication date
Jul 19, 2012
RICOH COMPANY, LTD.
Keisuke HAYASHI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
PIEZOELECTRIC ACTUATOR, LIQUID EJECTION HEAD, AND IMAGE FORMING APP...
Publication number
20110298872
Publication date
Dec 8, 2011
RICOH COMPANY, LTD.
Keisuke HAYASHI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Shift Register Circuit, Driving Circuit of Display Device, and Disp...
Publication number
20090295704
Publication date
Dec 3, 2009
Semiconductor Energy Laboratory Co., Ltd
Yukio Tanaka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
NONVOLATILE MEMORY AND MANUFACTURING METHOD THEREOF
Publication number
20090090954
Publication date
Apr 9, 2009
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Application
LIQUID DISCHARGING HEAD AND IMAGE FORMING APPARATUS INCLUDING THE L...
Publication number
20090002460
Publication date
Jan 1, 2009
RICOH COMPANY, LTD.
Keisuke HAYASHI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
LIQUID DISCHARGING HEAD USING PIEZOELECTRIC ACTUATOR AND IMAGE FORM...
Publication number
20080143795
Publication date
Jun 19, 2008
RICOH COMPANY, LTD.
Keisuke HAYASHI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Liquid jet head, method of manufacturing liquid jet head, and image...
Publication number
20070291084
Publication date
Dec 20, 2007
Keisuke Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Shift register circuit, driving circuit of display device, and disp...
Publication number
20060238483
Publication date
Oct 26, 2006
Semiconductor Energy Laboratory Co., Ltd
Yukio Tanaka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Nonvolatile memory and manufacturing method thereof
Publication number
20060197155
Publication date
Sep 7, 2006
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Application
Portable information processing system
Publication number
20050195129
Publication date
Sep 8, 2005
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Goggle type display system
Publication number
20050116882
Publication date
Jun 2, 2005
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Nonvolatile memory and manufacturing method thereof
Publication number
20040222424
Publication date
Nov 11, 2004
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Application
Shift register circuit, driving circuit of display device and displ...
Publication number
20030137482
Publication date
Jul 24, 2003
Semiconductor Energy Laboratory Co., Ltd
Yukio Tanaka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Nonvolatile memory and manufacturing method thereof
Publication number
20030107077
Publication date
Jun 12, 2003
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Shunpei Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Application
Goggle type display system
Publication number
20030063044
Publication date
Apr 3, 2003
Semiconductor Energy Laboratory Co., Ltd.
Shunpei Yamazaki
G02 - OPTICS
Information
Patent Application
Nonvolatile memory and manufacturing method thereof
Publication number
20020070406
Publication date
Jun 13, 2002
Shunpei Yamazaki
H01 - BASIC ELECTRIC ELEMENTS