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Masahiko Ohta
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Information processing device, system, and method
Patent number
11,790,511
Issue date
Oct 17, 2023
NEC Corporation
Masahiko Ohta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Vibration measurement system, vibration measurement apparatus, vibr...
Patent number
11,768,102
Issue date
Sep 26, 2023
NEC Corporation
Gaku Nakano
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Displacement component detection apparatus, displacement component...
Patent number
11,585,721
Issue date
Feb 21, 2023
NEC Corporation
Masahiko Ohta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Measurement system, correction processing apparatus, correction pro...
Patent number
11,519,780
Issue date
Dec 6, 2022
NEC Corporation
Gaku Nakano
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Vibration reliability calculation apparatus, vibration reliability...
Patent number
11,509,827
Issue date
Nov 22, 2022
NEC Corporation
Masahiko Ohta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Vibration measurement apparatus, vibration measurement method, and...
Patent number
11,391,621
Issue date
Jul 19, 2022
NEC Corporation
Masahiko Ohta
G01 - MEASURING TESTING
Information
Patent Grant
Vibration measurement system, vibration measurement apparatus, vibr...
Patent number
11,178,333
Issue date
Nov 16, 2021
NEC Corporation
Gaku Nakano
G01 - MEASURING TESTING
Information
Patent Grant
Motion analyis device, motion analysis method, and program recordin...
Patent number
10,922,823
Issue date
Feb 16, 2021
NEC Corporation
Masahiko Ohta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information processing device, information processing method and me...
Patent number
10,197,502
Issue date
Feb 5, 2019
NEC Corporation
Masahiko Ohta
G01 - MEASURING TESTING
Information
Patent Grant
Projector and control method
Patent number
9,282,300
Issue date
Mar 8, 2016
NEC Corporation
Yoshiho Yanagita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection system, projection-type image display device, and multi-...
Patent number
9,140,967
Issue date
Sep 22, 2015
NEC Corporation
Kazuhiko Aoki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light source device and projection type display device
Patent number
9,039,215
Issue date
May 26, 2015
NEC Corporation
Masahiko Ohta
F21 - LIGHTING
Information
Patent Grant
Fluorescent screen and image display device provided with same
Patent number
8,967,818
Issue date
Mar 3, 2015
NEC Corporation
Kazuhiko Aoki
F21 - LIGHTING
Information
Patent Grant
Image display device
Patent number
8,829,472
Issue date
Sep 9, 2014
NEC Corporation
Masahiko Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-projection display system and method of adjusting brightness...
Patent number
8,648,964
Issue date
Feb 11, 2014
NEC Corporation
Osamu Ishibashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical switch, image display device, image forming device, and met...
Patent number
8,509,576
Issue date
Aug 13, 2013
NEC Corporation
Masahiko Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical switch
Patent number
8,422,110
Issue date
Apr 16, 2013
NEC Corporation
Masahiko Ohta
G02 - OPTICS
Information
Patent Grant
Thin film display device with thin amorphous channel
Patent number
4,885,616
Issue date
Dec 5, 1989
Seiko Instruments Inc.
Masahiko Ohta
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
INFORMATION PROCESSING DEVICE, SYSTEM, AND METHOD
Publication number
20210350520
Publication date
Nov 11, 2021
NEC Corporation
Masahiko OHTA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
VIBRATION RELIABILITY CALCULATION APPARATUS, VIBRATION RELIABILITY...
Publication number
20210051270
Publication date
Feb 18, 2021
NEC Corporation
Masahiko OHTA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
VIBRATION MEASUREMENT SYSTEM, VIBRATION MEASUREMENT APPARATUS, VIBR...
Publication number
20210033451
Publication date
Feb 4, 2021
NEC Corporation
Gaku NAKANO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
VIBRATION MEASUREMENT SYSTEM, VIBRATION MEASUREMENT APPARATUS, VIBR...
Publication number
20210029297
Publication date
Jan 28, 2021
NEC Corporation
Gaku NAKANO
G01 - MEASURING TESTING
Information
Patent Application
MEASUREMENT SYSTEM, CORRECTION PROCESSING APPARATUS, CORRECTION PRO...
Publication number
20200393289
Publication date
Dec 17, 2020
NEC Corporation
Masahiko OHTA
G01 - MEASURING TESTING
Information
Patent Application
VIBRATION MEASUREMENT APPARATUS, VIBRATION MEASUREMENT METHOD, AND...
Publication number
20200348166
Publication date
Nov 5, 2020
NEC Corporation
Masahiko OHTA
G01 - MEASURING TESTING
Information
Patent Application
MEASUREMENT SYSTEM, CORRECTION PROCESSING APPARATUS, CORRECTION PRO...
Publication number
20200348168
Publication date
Nov 5, 2020
NEC Corporation
Gaku NAKANO
G01 - MEASURING TESTING
Information
Patent Application
DISPLACEMENT COMPONENT DETECTION APPARATUS, DISPLACEMENT COMPONENT...
Publication number
20200292411
Publication date
Sep 17, 2020
NEC Corporation
Masahiko OHTA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING...
Publication number
20190220984
Publication date
Jul 18, 2019
NEC Corporation
Masahiko OHTA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND ME...
Publication number
20170038307
Publication date
Feb 9, 2017
NEC Corporation
Masahiko OHTA
G01 - MEASURING TESTING
Information
Patent Application
Fluorescent Screen and Image Display Device Provided with Same
Publication number
20140118988
Publication date
May 1, 2014
NEC Corporation
Kazuhiko Aoki
G02 - OPTICS
Information
Patent Application
Projection System, Projection-type Image Display Device, and Multi-...
Publication number
20130335641
Publication date
Dec 19, 2013
Kazuhiko Aoki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multi-projection Display and Brightness Adjustment Method Thereof
Publication number
20130335390
Publication date
Dec 19, 2013
NEC Corporation
Osamu Ishibashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
IMAGE DISPLAY DEVICE
Publication number
20130320236
Publication date
Dec 5, 2013
Masahiko Ohta
G02 - OPTICS
Information
Patent Application
PROJECTOR AND CONTROL METHOD
Publication number
20130278906
Publication date
Oct 24, 2013
Yoshiho Yanagita
G02 - OPTICS
Information
Patent Application
MULTI-PROJECTION DISPLAY SYSTEM AND METHOD OF ADJUSTING BRIGHTNESS...
Publication number
20130229580
Publication date
Sep 5, 2013
NEC Corporation
Osamu Ishibashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LIGHT SOURCE DEVICE AND PROJECTION TYPE DISPLAY DEVICE
Publication number
20130176705
Publication date
Jul 11, 2013
NEC Corporation
Masahiko Ohta
F21 - LIGHTING
Information
Patent Application
OPTICAL SWITCH
Publication number
20110255148
Publication date
Oct 20, 2011
NEC Corporation
Masahiko Ohta
G02 - OPTICS
Information
Patent Application
OPTICAL SWITCH, IMAGE DISPLAY DEVICE, IMAGE FORMING DEVICE, AND MET...
Publication number
20110243497
Publication date
Oct 6, 2011
NEC Corporation
Masahiko Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE