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Toshimasa Umezawa
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Musashino-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
TOF camera
Patent number
12,050,271
Issue date
Jul 30, 2024
National Institute of Information and Communications Technology
Keizo Inagaki
G02 - OPTICS
Information
Patent Grant
High-speed photodetector array
Patent number
10,911,153
Issue date
Feb 2, 2021
National Institute of Information and Communications Technology
Toshimasa Umezawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical logic device responsive to pulsed signals
Patent number
7,442,912
Issue date
Oct 28, 2008
Yokogawa Electric Corporation
Morio Wada
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical packet communication device with an applied negative voltag...
Patent number
7,435,938
Issue date
Oct 14, 2008
Yokogawa Electric Corporation
Daisuke Hayashi
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
TOF CAMERA
Publication number
20210364642
Publication date
Nov 25, 2021
National Institute of Information and Communications Technology
Keizo INAGAKI
G01 - MEASURING TESTING
Information
Patent Application
HIGH-SPEED PHOTODETECTOR ARRAY
Publication number
20200044745
Publication date
Feb 6, 2020
Toshimasa UMEZAWA
G02 - OPTICS
Information
Patent Application
OPTICAL-TO-RADIO CONVERTER
Publication number
20190020319
Publication date
Jan 17, 2019
National Institute of Information and Communications Technology
Toshimasa UMEZAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical communication device
Publication number
20070164198
Publication date
Jul 19, 2007
Yokogawa Electric Corporation
Daisuke Hayashi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Light receiving module
Publication number
20060268566
Publication date
Nov 30, 2006
YOKOGAWA ELECTRIC CORPORATION
Morio Wada
G02 - OPTICS
Information
Patent Application
Optical logic device
Publication number
20050194519
Publication date
Sep 8, 2005
Morio Wada
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Optical signal processing apparatus
Publication number
20040213584
Publication date
Oct 28, 2004
YOKOGAWA ELECTRIC CORPORATION
Shun-ichi Miyazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE