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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Induction heating device, radioactive waste melting process device...
Patent number
11,570,856
Issue date
Jan 31, 2023
Denki Kogyo Company, Limited
Yohei Awata
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Connection detecting mechanism of optical connector plug
Patent number
10,983,287
Issue date
Apr 20, 2021
Sanwa Denki Kogyo Co., Ltd.
Tomoya Terashima
G02 - OPTICS
Information
Patent Grant
Adapter with LC-type two-core shutter
Patent number
10,890,731
Issue date
Jan 12, 2021
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
LC-type simplified optical connector
Patent number
10,823,916
Issue date
Nov 3, 2020
Sanwa Denki Kogyo Co., Ltd.
Takashi Sato
G02 - OPTICS
Information
Patent Grant
Miniature adapter for MPO plug
Patent number
10,739,527
Issue date
Aug 11, 2020
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
Leaky-wave antenna
Patent number
10,665,954
Issue date
May 26, 2020
Denki Kogyo Company, Limited
Takayoshi Sasaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical adapter with shutter
Patent number
10,545,295
Issue date
Jan 28, 2020
Sanwa Denki Kogyo Co., Ltd.
Takashi Sato
G02 - OPTICS
Information
Patent Grant
Optical connector
Patent number
10,520,685
Issue date
Dec 31, 2019
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
Heat-treatment device and heat-treatment method
Patent number
10,422,014
Issue date
Sep 24, 2019
THK Co., Ltd
Junzo Shimbe
C21 - METALLURGY OF IRON
Information
Patent Grant
Leaky-wave antenna
Patent number
10,367,268
Issue date
Jul 30, 2019
Denki Kogyo Company, Limited
Ichiro Oshima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Tab for optical connector engagement and disengagement
Patent number
10,317,630
Issue date
Jun 11, 2019
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
Protection cap for optical connector plug
Patent number
10,209,457
Issue date
Feb 19, 2019
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
Patch panel
Patent number
10,139,581
Issue date
Nov 27, 2018
Sanwa Denki Kogyo Co., Ltd.
Nobuo Ishimine
G02 - OPTICS
Information
Patent Grant
Base station antenna apparatus for mobile communication system
Patent number
10,056,990
Issue date
Aug 21, 2018
Denki Kogyo Company, Limited
Yukitaka Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Boot for optical connector ferrule
Patent number
9,891,391
Issue date
Feb 13, 2018
SANWA DENKI KOGYO CO. LTD.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
Boot for optical connector ferrule
Patent number
9,778,423
Issue date
Oct 3, 2017
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
Optical connector ferrule
Patent number
9,684,137
Issue date
Jun 20, 2017
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
G02 - OPTICS
Information
Patent Grant
Transfer mechanism structure
Patent number
9,581,207
Issue date
Feb 28, 2017
Denki Kogyo Company, Limited
Makoto Tokieda
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Dustcap for optical adapter
Patent number
D772170
Issue date
Nov 22, 2016
Sanwa Denki Kogyo Co., Ltd.
Yasuhiro Watanabe
D13 - Equipment for production, distribution, or transformation of energy
Information
Patent Grant
Dust proofing shutter built-in adapter of LC type optical connector
Patent number
9,453,963
Issue date
Sep 27, 2016
Sanwa Denki Kogyo Co., Ltd.
Takashi Sato
G02 - OPTICS
Information
Patent Grant
Transmitting-receiving-separated dual-polarization antenna
Patent number
9,379,434
Issue date
Jun 28, 2016
Denki Kogyo Co., Ltd.
Keisuke Sato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Backlash prevention mechanism of adapter for optical connector
Patent number
9,229,177
Issue date
Jan 5, 2016
Sanwa Denki Kogyo Co., Ltd.
Takashi Sato
G02 - OPTICS
Information
Patent Grant
Interconnecting adapter for LC type optical connectors
Patent number
9,128,255
Issue date
Sep 8, 2015
Sanwa Denki Kogyo Co., Ltd.
Takashi Sato
G02 - OPTICS
Information
Patent Grant
Optical connector plug
Patent number
9,052,471
Issue date
Jun 9, 2015
Sanwa Denki Kogyo Co., Ltd.
Yasusuke Hioki
G02 - OPTICS
Information
Patent Grant
Heat treatment method
Patent number
8,845,831
Issue date
Sep 30, 2014
Denki Kogyo Co., Ltd.
Seiichi Sawatsubashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Optical connector plug with shutter
Patent number
8,317,407
Issue date
Nov 27, 2012
Sanwa Denki Kogyo Co., Ltd.
Yasusuke Hioki
G02 - OPTICS
Information
Patent Grant
Adapter for optical connector
Patent number
D608285
Issue date
Jan 19, 2010
Sanwa Denki Kogyo Co., Ltd.
Takashi Sato
D13 - Equipment for production, distribution, or transformation of energy
Information
Patent Grant
Optical connector plug
Patent number
7,588,373
Issue date
Sep 15, 2009
Sanwa Denki Kogyo Co., Ltd.
Takashi Sato
G02 - OPTICS
Information
Patent Grant
Connecting structure of optical connectors
Patent number
7,555,192
Issue date
Jun 30, 2009
Sanwa Denki Kogyo Co., Ltd.
Takuji Ishii
G02 - OPTICS
Information
Patent Grant
Adapter for memory card
Patent number
7,025,623
Issue date
Apr 11, 2006
Sanwa Denki Kogyo Co., Ltd.
Akira Katsumata
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
CASSETTE CASE WITH INTEGRATED ADAPTER FOR OPTICAL CONNECTOR
Publication number
20240004155
Publication date
Jan 4, 2024
SANWA DENKI KOGYO CO., LTD.
YASUHIRO WATANABE
G02 - OPTICS
Information
Patent Application
VARIABLE REFLECT ARRAY, AND METHOD FOR DESIGNING VARIABLE REFLECTOR...
Publication number
20230378644
Publication date
Nov 23, 2023
Denki Kogyo Company, Limited
Takayoshi SASAKI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SHUTTER SHAFT HOLDING STRUCTURE IN ADAPTER WITH SHUTTER
Publication number
20220011520
Publication date
Jan 13, 2022
SANWA DENKI KOGYO CO., LTD.
Takashi SATO
G02 - OPTICS
Information
Patent Application
OPTICAL MODULE AND METHOD OF MANUFACTURING THE SAME
Publication number
20210396943
Publication date
Dec 23, 2021
SANWA DENKI KOGYO CO., LTD.
Masahiko NAMIWAKA
G02 - OPTICS
Information
Patent Application
INDUCTION HEATING DEVICE, RADIOACTIVE WASTE MELTING PROCESS DEVICE...
Publication number
20210092804
Publication date
Mar 25, 2021
Denki Kogyo Company, Limited
Yohei AWATA
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Application
ADAPTER WITH LC-TYPE TWO-CORE SHUTTER
Publication number
20200132956
Publication date
Apr 30, 2020
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
LC-TYPE SIMPLIFIED OPTICAL CONNECTOR
Publication number
20200096708
Publication date
Mar 26, 2020
SANWA DENKI KOGYO CO., LTD.
Takashi SATO
G02 - OPTICS
Information
Patent Application
CONNECTION DETECTING MECHANISM OF OPTICAL CONNECTOR PLUG
Publication number
20200088949
Publication date
Mar 19, 2020
SANWA DENKI KOGYO CO., LTD.
Tomoya TERASHIMA
G02 - OPTICS
Information
Patent Application
MINIATURE ADAPTER FOR MPO PLUG
Publication number
20190317281
Publication date
Oct 17, 2019
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
LC-TYPE SIMPLIFIED CONNECTOR PLUG AND OPTICAL CONNECTOR DEVICE USIN...
Publication number
20190278032
Publication date
Sep 12, 2019
SANWA DENKI KOGYO CO., LTD.
Takashi SATO
G02 - OPTICS
Information
Patent Application
LEAKY-WAVE ANTENNA
Publication number
20190273324
Publication date
Sep 5, 2019
Denki Kogyo Company, Limited
Takayoshi Sasaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL CONNECTOR
Publication number
20190235183
Publication date
Aug 1, 2019
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
TAB FOR OPTICAL CONNECTOR
Publication number
20190079252
Publication date
Mar 14, 2019
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
PATCH PANEL
Publication number
20180314024
Publication date
Nov 1, 2018
SANWA DENKI KOGYO CO., LTD.
Nobuo ISHIMINE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PROTECTION CAP FOR OPTICAL CONNECTOR PLUG
Publication number
20180095226
Publication date
Apr 5, 2018
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
PULL-OUT TAB OF OPTICAL CONNECTOR PLUG
Publication number
20180081129
Publication date
Mar 22, 2018
SANWA DENKI KOGYO CO., LTD.
Tomoaki KAGA
G02 - OPTICS
Information
Patent Application
LEAKY-WAVE ANTENNA
Publication number
20180040961
Publication date
Feb 8, 2018
Denki Kogyo Company, Limited
Ichiro Oshima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
BASE STATION ANTENNA APPARATUS FOR MOBILE COMMUNICATION SYSTEM
Publication number
20170346576
Publication date
Nov 30, 2017
Denki Kogyo Company, Limited
Yukitaka Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HOLDER DEVICE FOR OPTICAL ADAPTER
Publication number
20170248762
Publication date
Aug 31, 2017
SANWA DENKI KOGYO CO., LTD.
Takashi SATO
G02 - OPTICS
Information
Patent Application
BOOT FOR OPTICAL CONNECTOR FERRULE
Publication number
20170160494
Publication date
Jun 8, 2017
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
HIGH FREQUENCY INDUCTION CONTINUOUS HEATING METHOD AND HIGH FREQUEN...
Publication number
20170013682
Publication date
Jan 12, 2017
Denki Kogyo Company, Limited
Kouichi Miyashita
C21 - METALLURGY OF IRON
Information
Patent Application
HEAT-TREATMENT DEVICE AND HEAT-TREATMENT METHOD
Publication number
20160369366
Publication date
Dec 22, 2016
THK CO., LTD.
Junzo Shimbe
C21 - METALLURGY OF IRON
Information
Patent Application
BOOT FOR OPTICAL CONNECTOR FERRULE
Publication number
20160356965
Publication date
Dec 8, 2016
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
OPTICAL CONNECTOR FERRULE
Publication number
20160320570
Publication date
Nov 3, 2016
SANWA DENKI KOGYO CO., LTD.
Yasuhiro WATANABE
G02 - OPTICS
Information
Patent Application
TRANSFER MECHANISM STRUCTURE
Publication number
20160123406
Publication date
May 5, 2016
Denki Kogyo Company, Limited
Makoto Tokieda
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
TWO CORE TYPE OPTICAL CONNECTOR PLUG
Publication number
20160047993
Publication date
Feb 18, 2016
SANWA DENKI KOGYO CO., LTD.
Yasusuke HIOKI
G02 - OPTICS
Information
Patent Application
BACKLASH PREVENTION MECHANISM OF ADAPTER FOR OPTICAL CONNECTOR
Publication number
20160018607
Publication date
Jan 21, 2016
SANWA DENKI KOGYO CO., LTD.
Takashi SATO
G02 - OPTICS
Information
Patent Application
TRANSMITTING-RECEIVING-SEPARATED DUAL-POLARIZATION ANTENNA
Publication number
20150180116
Publication date
Jun 25, 2015
DENKI KOGYO CO., LTD.
Keisuke Sato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DUST PROOFING SHUTTER BUILT-IN ADAPTER OF LC TYPE OPTICAL CONNECTOR
Publication number
20150078710
Publication date
Mar 19, 2015
SANWA DENKI KOGYO CO., LTD.
Takashi SATO
G02 - OPTICS
Information
Patent Application
INTERCONNECTING ADAPTER FOR LC TYPE OPTICAL CONNECTORS
Publication number
20140205239
Publication date
Jul 24, 2014
SANWA DENKI KOGYO CO., LTD.
Takashi SATO
G02 - OPTICS
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