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Masahide SASAKI
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Secret key sharing system and secret key sharing method
Patent number
12,058,246
Issue date
Aug 6, 2024
National Institute of Information and Communications Technology
Hiroyuki Endo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmitting device, receiving device, quantum key distribution met...
Patent number
11,502,831
Issue date
Nov 15, 2022
NEC Corporation
Ken-ichiro Yoshino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system
Patent number
10,193,874
Issue date
Jan 29, 2019
National Institute of Information and Communications Technology
Mikio Fujiwara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Time-bin polarization format exchange technique for entangled optic...
Patent number
8,509,446
Issue date
Aug 13, 2013
National Institute of Information and Communications Technology
Mikio Fujiwara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for reducing low frequency noise of transistor
Patent number
8,048,731
Issue date
Nov 1, 2011
National Institute of Information and Communications Technology
Mikio Fujiwara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Quantum source coding apparatus and quantum information communicati...
Patent number
7,403,713
Issue date
Jul 22, 2008
University of Hertfordshire
Masahide Sasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for manufacturing photodetector for weak light
Patent number
7,176,439
Issue date
Feb 13, 2007
National Institute of Information and Communication Technology
Mikio Fujiwara
G01 - MEASURING TESTING
Information
Patent Grant
Photodetector for weak light with UV transparent substrates
Patent number
7,115,868
Issue date
Oct 3, 2006
National Institute of Information and Communications Technology Incorporated...
Mikio Fujiwara
G01 - MEASURING TESTING
Information
Patent Grant
Photo detector for weak light
Patent number
7,078,667
Issue date
Jul 18, 2006
National Institute of Information and Communications Technology Incorporated...
Mikio Fujiwara
G01 - MEASURING TESTING
Information
Patent Grant
Photodetector for weak light having charge reset means
Patent number
7,067,790
Issue date
Jun 27, 2006
National Institute of Information and Communications Technology Incorporated...
Mikio Fujiwara
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
ENCRYPTION KEY GENERATING DEVICE, ENCRYPTION KEY GENERATING PROGRAM...
Publication number
20240171386
Publication date
May 23, 2024
National Institute of Information and Communications Technology
Mikio FUJIWARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEPTION DEVICE, QUANTUM KEY DISTRIBUTION SYSTEM, AND METHOD FOR D...
Publication number
20240089093
Publication date
Mar 14, 2024
NEC Corporation
Ken-ichiro YOSHINO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PHOTON DETECTION DEVICE, RECEPTION DEVICE, QUANTUM KEY DISTRIBUTION...
Publication number
20240080184
Publication date
Mar 7, 2024
NEC Corporation
Ken-ichiro YOSHINO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET KEY SHARING SYSTEM AND SECRET KEY SHARING METHOD
Publication number
20230022825
Publication date
Jan 26, 2023
National Institute of Information and Communications Technology
Hiroyuki ENDO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECURE SECRET SHARING STORAGE SYSTEM USING CLOUD SERVICE
Publication number
20220147640
Publication date
May 12, 2022
PANASONIC CORPORATION
Masakatsu MATSUO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TRANSMITTING DEVICE, RECEIVING DEVICE, QUANTUM KEY DISTRIBUTION MET...
Publication number
20190245685
Publication date
Aug 8, 2019
NEC Corporation
Ken-ichiro YOSHINO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM
Publication number
20170134351
Publication date
May 11, 2017
National Institute of Information and Communicatio ns Technology
Mikio FUJIWARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TIME-BIN POLARIZATION FORMAT EXCHANGE TECHNIQUE FOR ENTANGLED OPTIC...
Publication number
20110170695
Publication date
Jul 14, 2011
National Institute of Information and Communications Technology
Mikio FUJIWARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD FOR REDUCING LOW FREQUENCY NOISE OF TRANSISTOR
Publication number
20100237934
Publication date
Sep 23, 2010
Mikio Fujiwara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Hollow mount photodetector for weak light
Publication number
20050035274
Publication date
Feb 17, 2005
Mikio Fujiwara
G01 - MEASURING TESTING
Information
Patent Application
Method for manufacturing photodetector for weak light
Publication number
20050029434
Publication date
Feb 10, 2005
Mikio Fujiwara
G01 - MEASURING TESTING
Information
Patent Application
Photodetector for weak light having charge reset means
Publication number
20050023542
Publication date
Feb 3, 2005
Mikio Fujiwara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Photodetector for weak light with UV transparent substrates
Publication number
20050023467
Publication date
Feb 3, 2005
Mikio Fujiwara
G01 - MEASURING TESTING
Information
Patent Application
Quantum source coding apparatus and quantum information communicati...
Publication number
20040234264
Publication date
Nov 25, 2004
Masahide Sasaki
G06 - COMPUTING CALCULATING COUNTING