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Masashi Shirata
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Radio wave absorber
Patent number
12,160,984
Issue date
Dec 3, 2024
FUJIFILM Corporation
Masashi Shirata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Particles of magnetoplumbite-type hexagonal ferrite, method for man...
Patent number
11,721,461
Issue date
Aug 8, 2023
FUJIFILM Corporation
Yoichi Hosoya
C30 - CRYSTAL GROWTH
Information
Patent Grant
Hexagonal strontium ferrite powder, magnetic recording medium, and...
Patent number
11,705,156
Issue date
Jul 18, 2023
FUJIFILM Corporation
Kenji Naoi
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording device and recording method
Patent number
11,574,652
Issue date
Feb 7, 2023
The University of Tokyo
Shin-ichi Ohkoshi
G11 - INFORMATION STORAGE
Information
Patent Grant
Core-shell particle and manufacturing method and fired product of t...
Patent number
11,562,839
Issue date
Jan 24, 2023
FUJIFILM Corporation
Kenji Naoi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Ferromagnetic powder for magnetic recording and magnetic recording...
Patent number
11,488,627
Issue date
Nov 1, 2022
FUJIFILM Corporation
Kenji Naoi
G11 - INFORMATION STORAGE
Information
Patent Grant
Particles of β-iron oxyhydroxide-based compound, manufacturing meth...
Patent number
11,459,244
Issue date
Oct 4, 2022
FUJIFILM Corporation
Kenji Naoi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Core-shell particle, fired product of core-shell particle, manufact...
Patent number
11,348,711
Issue date
May 31, 2022
FUJIFILM Corporation
Kenji Naoi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Recording method, recording device, reproduction method, reproducti...
Patent number
11,315,595
Issue date
Apr 26, 2022
The University of Tokyo
Shin-ichi Ohkoshi
G11 - INFORMATION STORAGE
Information
Patent Grant
Hexagonal strontium ferrite powder for magnetic recording and magne...
Patent number
11,244,701
Issue date
Feb 8, 2022
FUJIFILM Cornoration
Kenji Naoi
G11 - INFORMATION STORAGE
Information
Patent Grant
Hexagonal strontium ferrite powder, magnetic recording medium, and...
Patent number
11,222,661
Issue date
Jan 11, 2022
FUJIFILM Corporation
Kenji Naoi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium including specified compound, magnetic re...
Patent number
11,170,812
Issue date
Nov 9, 2021
FUJIFILM Corporation
Kenji Naoi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
11,100,949
Issue date
Aug 24, 2021
FUJIFILM Corporation
Masashi Shirata
G11 - INFORMATION STORAGE
Information
Patent Grant
ϵ-iron oxide type ferromagnetic powder and magnetic recording medium
Patent number
11,090,716
Issue date
Aug 17, 2021
FUJIFILM Corporation
Masashi Shirata
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Production method for metal oxide particles, metal oxide powder, an...
Patent number
10,734,144
Issue date
Aug 4, 2020
FUJIFILM Corporation
Masashi Shirata
G11 - INFORMATION STORAGE
Information
Patent Grant
Hexagonal ferrite powder and magnetic recording medium
Patent number
10,373,638
Issue date
Aug 6, 2019
FUJIFILM Corporation
Yoichi Hosoya
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method of manufacturing hexagonal ferrite powder, hexagonal ferrite...
Patent number
10,102,874
Issue date
Oct 16, 2018
FUJIFILM Corporation
Masashi Shirata
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of manufacturing hexagonal ferrite powder, hexagonal ferrite...
Patent number
9,957,167
Issue date
May 1, 2018
FUJIFILM Corporation
Masashi Shirata
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Magnetic recording medium
Patent number
9,773,518
Issue date
Sep 26, 2017
FUJIFILM Corporation
Masashi Shirata
G11 - INFORMATION STORAGE
Information
Patent Grant
Hexagonal ferrite magnetic powder for magnetic recording, method fo...
Patent number
9,748,026
Issue date
Aug 29, 2017
FUJIFILM Corporation
Masashi Shirata
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic powder for magnetic recording, magnetic recording medium,...
Patent number
9,589,584
Issue date
Mar 7, 2017
FUJIFILM Corporation
Masashi Shirata
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Magnetic powder for magnetic recording, magnetic recording medium,...
Patent number
9,589,585
Issue date
Mar 7, 2017
FUJIFILM Corporation
Masashi Shirata
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Dispersion-type electroluminescence device
Patent number
8,558,447
Issue date
Oct 15, 2013
FUJIFILM Corporation
Masashi Shirata
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Surface emitting-type electroluminescent device
Patent number
7,990,057
Issue date
Aug 2, 2011
FUJIFILM Corporation
Seiji Yamashita
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Image-taking system
Patent number
7,974,467
Issue date
Jul 5, 2011
FUJIFILM Corporation
Toshihiko Kaku
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for producing metallic nanoparticles, metallic nanoparticles...
Patent number
7,651,782
Issue date
Jan 26, 2010
FUJIFILM Corporation
Masashi Shirata
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Silver halide emulsion and method of preparing the same
Patent number
6,797,459
Issue date
Sep 28, 2004
Fuji Photo Film Co., Ltd.
Masashi Shirata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
HEXAGONAL STRONTIUM FERRITE POWDER, MAGNETIC RECORDING MEDIUM, AND...
Publication number
20220093126
Publication date
Mar 24, 2022
FUJIFILM CORPORATION
Kenji NAOI
G11 - INFORMATION STORAGE
Information
Patent Application
RADIO WAVE ABSORBER
Publication number
20220061198
Publication date
Feb 24, 2022
FUJIFILM CORPORATION
Masashi SHIRATA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
RECORDING DEVICE AND RECORDING METHOD
Publication number
20210375314
Publication date
Dec 2, 2021
THE UNIVERSITY OF TOKYO
Shin-ichi OHKOSHI
G11 - INFORMATION STORAGE
Information
Patent Application
RECORDING METHOD, RECORDING DEVICE, REPRODUCTION METHOD, REPRODUCTI...
Publication number
20210027806
Publication date
Jan 28, 2021
THE UNIVERSITY OF TOKYO
Shin-ichi OHKOSHI
G11 - INFORMATION STORAGE
Information
Patent Application
PARTICLES OF MAGNETOPLUMBITE-TYPE HEXAGONAL FERRITE, METHOD FOR MAN...
Publication number
20200335247
Publication date
Oct 22, 2020
FUJIFILM CORPORATION
Yoichi HOSOYA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HEXAGONAL STRONTIUM FERRITE POWDER, MAGNETIC RECORDING MEDIUM, AND...
Publication number
20200227083
Publication date
Jul 16, 2020
FUJIFILM CORPORATION
Kenji Naoi
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING AND REPRODUCING APPAR...
Publication number
20200075052
Publication date
Mar 5, 2020
FUJIFILM CORPORATION
Kenji NAOI
G11 - INFORMATION STORAGE
Information
Patent Application
PARTICLES OF beta-IRON OXYHYDROXIDE-BASED COMPOUND, MANUFACTURING M...
Publication number
20190300380
Publication date
Oct 3, 2019
FUJIFILM CORPORATION
Kenji NAOI
C01 - INORGANIC CHEMISTRY
Information
Patent Application
FERROMAGNETIC POWDER FOR MAGNETIC RECORDING AND MAGNETIC RECORDING...
Publication number
20190295582
Publication date
Sep 26, 2019
FUJIFILM CORPORATION
Kenji Naoi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
CORE-SHELL PARTICLE, FIRED PRODUCT OF CORE-SHELL PARTICLE, MANUFACT...
Publication number
20190096551
Publication date
Mar 28, 2019
FUJIFILM CORPORATION
Kenji NAOI
C01 - INORGANIC CHEMISTRY
Information
Patent Application
HEXAGONAL STRONTIUM FERRITE POWDER FOR MAGNETIC RECORDING AND MAGNE...
Publication number
20180366152
Publication date
Dec 20, 2018
FUJIFILM CORPORATION
Kenji NAOI
C01 - INORGANIC CHEMISTRY
Information
Patent Application
MAGNETIC RECORDING MEDIUM
Publication number
20180358046
Publication date
Dec 13, 2018
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM
Publication number
20180358044
Publication date
Dec 13, 2018
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
CORE-SHELL PARTICLE AND MANUFACTURING METHOD AND FIRED PRODUCT OF T...
Publication number
20180358155
Publication date
Dec 13, 2018
FUJIFILM CORPORATION
Kenji NAOI
C01 - INORGANIC CHEMISTRY
Information
Patent Application
MAGNETIC RECORDING MEDIUM
Publication number
20180358043
Publication date
Dec 13, 2018
FUJIFILM CORPORATION
Kenji NAOI
G11 - INFORMATION STORAGE
Information
Patent Application
E-IRON OXIDE TYPE FERROMAGNETIC POWDER AND MAGNETIC RECORDING MEDIUM
Publication number
20180147626
Publication date
May 31, 2018
FUJIFILM CORPORATION
Masashi SHIRATA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PRODUCTION METHOD FOR METAL OXIDE PARTICLES, METAL OXIDE POWDER, AN...
Publication number
20170287603
Publication date
Oct 5, 2017
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
HEXAGONAL FERRITE POWDER, MAGNETIC RECORDING MEDIUM, AND METHOD OF...
Publication number
20170287515
Publication date
Oct 5, 2017
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
HEXAGONAL FERRITE POWDER AND MAGNETIC RECORDING MEDIUM
Publication number
20170287517
Publication date
Oct 5, 2017
FUJIFILM CORPORATION
Yoichi HOSOYA
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD OF MANUFACTURING HEXAGONAL FERRITE POWDER, HEXAGONAL FERRITE...
Publication number
20170004912
Publication date
Jan 5, 2017
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
PRODUCTION METHOD FOR METAL OXIDE PARTICLES, METAL OXIDE POWDER, AN...
Publication number
20160203894
Publication date
Jul 14, 2016
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
HEXAGONAL FERRITE MAGNETIC POWDER FOR MAGNETIC RECORDING, METHOD FO...
Publication number
20160141084
Publication date
May 19, 2016
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD OF MANUFACTURING HEXAGONAL FERRITE POWDER, HEXAGONAL FERRITE...
Publication number
20150279406
Publication date
Oct 1, 2015
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC POWDER FOR MAGNETIC RECORDING, MAGNETIC RECORDING MEDIUM,...
Publication number
20150187472
Publication date
Jul 2, 2015
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC POWDER FOR MAGNETIC RECORDING, MAGNETIC RECORDING MEDIUM,...
Publication number
20150187380
Publication date
Jul 2, 2015
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM
Publication number
20140255728
Publication date
Sep 11, 2014
FUJIFILM CORPORATION
Masashi SHIRATA
G11 - INFORMATION STORAGE
Information
Patent Application
DISPERSION-TYPE ELECTROLUMINESCENCE DEVICE
Publication number
20120019125
Publication date
Jan 26, 2012
FUJIFILM CORPORATION
Masashi Shirata
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
PHOTOELECTRIC CONVERSION DEVICE AND SOLAR CELL
Publication number
20110232760
Publication date
Sep 29, 2011
FUJIFILM CORPORATION
Masashi SHIRATA
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
SOLAR BATTERY ELEMENT AND METHOD FOR PRODUCING THE SOLAR BATTERY EL...
Publication number
20110232729
Publication date
Sep 29, 2011
FUJIFILM CORPORATION
Yoichi HOSOYA
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
INORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20110140594
Publication date
Jun 16, 2011
Masashi SHIRATA
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR