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Masaaki Yonezawa
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Tokyo, JP
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last 30 patents
Information
Patent Grant
Battery powered wireless relay switching to routing state on the ba...
Patent number
9,998,201
Issue date
Jun 12, 2018
Yokogawa Electric Corporation
Masaaki Yonezawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pressure-resistant explosion-proof container having a slit waveguide
Patent number
9,806,424
Issue date
Oct 31, 2017
Yokogawa Electric Corporation
Masaaki Yonezawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Device adapter, device system, and start control method
Patent number
9,736,783
Issue date
Aug 15, 2017
Yokogawa Electric Corporation
Masaaki Yonezawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless explosion-proof apparatus
Patent number
8,860,624
Issue date
Oct 14, 2014
Yokogawa Electric Corporation
Masaaki Yonezawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Home agent and mobile communication system
Patent number
7,929,485
Issue date
Apr 19, 2011
Yokogawa Electric Corporation
Masaaki Yonezawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication system and mobile communication method
Patent number
7,773,552
Issue date
Aug 10, 2010
Yokogawa Electric Corporation
Masaaki Yonezawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for acquiring and analyzing personal profile data and provid...
Patent number
6,980,977
Issue date
Dec 27, 2005
Yokogawa Electric Corporation
Tetsuo Hoshi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Industrial control apparatus
Patent number
5,553,297
Issue date
Sep 3, 1996
Yokogawa Electric Corporation
Masaaki Yonezawa
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
DEVICE ADAPTER, DEVICE SYSTEM, AND START CONTROL METHOD
Publication number
20170006550
Publication date
Jan 5, 2017
YOKOGAWA ELECTRIC CORPORATION
Masaaki YONEZAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FIELD WIRELESS RELAY DEVICE
Publication number
20160127031
Publication date
May 5, 2016
Yokogawa Electric Corporation
Masaaki YONEZAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PRESSURE-RESISTANT EXPLOSION-PROOF CONTAINER
Publication number
20130278469
Publication date
Oct 24, 2013
Yokogawa Electric Corporation
Masaaki Yonezawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
WIRELESS EXPLOSION-PROOF APPARATUS
Publication number
20110316757
Publication date
Dec 29, 2011
YOKOGAWA ELECTRIC CORPORATION
Masaaki YONEZAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Data collection apparatus
Publication number
20060267754
Publication date
Nov 30, 2006
YOKOGAWA ELECTRIC CORPORATION
Kazumi Takeda
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Mobile communication system and mobile communication method
Publication number
20060234695
Publication date
Oct 19, 2006
YOKOGAWA ELECTRIC CORPORATION
Masaaki Yonezawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Home agent and mobile communication system
Publication number
20060215631
Publication date
Sep 28, 2006
YOKOGAWA ELECTRIC CORPORATION
Masaaki Yonezawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System for acquiring and analyzing personal profile data and provid...
Publication number
20020083043
Publication date
Jun 27, 2002
Tetsuo Hoshi
G06 - COMPUTING CALCULATING COUNTING