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Hiroyuki KIGUCHI
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Image recording apparatus, image recording method, and recording me...
Patent number
11,203,201
Issue date
Dec 21, 2021
Ricoh Company, Ltd.
Jun Shiori
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Current detecting device, motor controlling system, image forming a...
Patent number
10,472,194
Issue date
Nov 12, 2019
Ricoh Company, Ltd.
Takeo Seki
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Motor control device and motor control method
Patent number
10,224,859
Issue date
Mar 5, 2019
Ricoh Company, Ltd.
Hiroyuki Kiguchi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Motor control device and motor control method
Patent number
9,973,133
Issue date
May 15, 2018
Ricoh Company, Ltd.
Hiroyuki Kiguchi
G05 - CONTROLLING REGULATING
Information
Patent Grant
Motor control device, image forming apparatus, motor control method...
Patent number
9,515,590
Issue date
Dec 6, 2016
Ricoh Company, Limited
Natsuko Ishizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Motor control device, motor control method, and computer-readable s...
Patent number
9,484,845
Issue date
Nov 1, 2016
Ricoh Company, Ltd.
Hiroyuki Kiguchi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electric motor system and motor control method
Patent number
9,323,208
Issue date
Apr 26, 2016
Ricoh Company, Ltd.
Shogo Sakamoto
G05 - CONTROLLING REGULATING
Information
Patent Grant
Motor control device, image forming apparatus including the motor c...
Patent number
9,106,164
Issue date
Aug 11, 2015
Ricoh Company, Ltd.
Takeo Seki
G05 - CONTROLLING REGULATING
Information
Patent Grant
Motor control device, motor control method, and image forming appar...
Patent number
9,093,935
Issue date
Jul 28, 2015
Ricoh Company, Limited
Natsuko Ishizuka
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Motor control device, image forming apparatus, motor control method...
Patent number
9,018,884
Issue date
Apr 28, 2015
Ricoh Company, Limited
Natsuko Ishizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electric motor system and motor control method
Patent number
8,928,270
Issue date
Jan 6, 2015
Ricoh Company, Ltd.
Shogo Sakamoto
G05 - CONTROLLING REGULATING
Information
Patent Grant
Optical pickup apparatus
Patent number
5,088,078
Issue date
Feb 11, 1992
Ricoh Company, Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and device for detecting focal point
Patent number
4,636,625
Issue date
Jan 13, 1987
Ricoh Company, Ltd.
Masami Emoto
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
IMAGE RECORDING APPARATUS, IMAGE RECORDING METHOD, AND RECORDING ME...
Publication number
20200247113
Publication date
Aug 6, 2020
Ricoh Company, Ltd.
Jun SHIORI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
Publication number
20180212548
Publication date
Jul 26, 2018
Hiroyuki KIGUCHI
G05 - CONTROLLING REGULATING
Information
Patent Application
CURRENT DETECTING DEVICE, MOTOR CONTROLLING SYSTEM, IMAGE FORMING A...
Publication number
20170190530
Publication date
Jul 6, 2017
RICOH COMPANY, LTD.
Takeo SEKI
G01 - MEASURING TESTING
Information
Patent Application
MOTOR CONTROL DEVICE, MOTOR CONTROL METHOD, AND COMPUTER-READABLE S...
Publication number
20170012568
Publication date
Jan 12, 2017
Hiroyuki KIGUCHI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MOTOR CONTROL DEVICE, IMAGE FORMING APPARATUS, MOTOR CONTROL METHOD...
Publication number
20150130385
Publication date
May 14, 2015
RICOH COMPANY, LIMITED
Natsuko ISHIZUKA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ELECTRIC MOTOR SYSTEM AND MOTOR CONTROL METHOD
Publication number
20150110525
Publication date
Apr 23, 2015
RICOH COMPANY, LTD.
Shogo SAKAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
MOTOR CONTROL DEVICE, MOTOR CONTROL METHOD, AND IMAGE FORMING APPAR...
Publication number
20140049199
Publication date
Feb 20, 2014
Natsuko ISHIZUKA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
MOTOR CONTROL DEVICE, IMAGE FORMING APPARATUS INCLUDING THE MOTOR C...
Publication number
20130200838
Publication date
Aug 8, 2013
Takeo SEKI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MOTOR CONTROL DEVICE, IMAGE FORMING APPARATUS, MOTOR CONTROL METHOD...
Publication number
20130200836
Publication date
Aug 8, 2013
Natsuko Ishizuka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MOTOR CONTROL DEVICE, MOTOR CONTROL METHOD, AND COMPUTER-READABLE S...
Publication number
20130193894
Publication date
Aug 1, 2013
Hiroyuki KIGUCHI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ELECTRIC MOTOR SYSTEM AND MOTOR CONTROL METHOD
Publication number
20130078021
Publication date
Mar 28, 2013
RICOH COMPANY, LTD.
Shogo SAKAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY