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Dongsik KIM
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Hwaseong-si, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and method for registering visible light communication de...
Patent number
10,659,157
Issue date
May 19, 2020
YUYANG DNU CO., LTD
Sangok Kim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Route guidance method and apparatus for visually impaired using vis...
Patent number
10,441,494
Issue date
Oct 15, 2019
YUYANG DNU CO., LTD
Sangok Kim
G08 - SIGNALLING
Information
Patent Grant
Flickerless LED driver device
Patent number
10,405,389
Issue date
Sep 3, 2019
YUYANG DNU CO., LTD
Sangok Kim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for controlling lighting device, using visible...
Patent number
10,373,487
Issue date
Aug 6, 2019
YUYANG DNU CO., LTD
Sangok Kim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for registering visible light communication de...
Patent number
10,277,318
Issue date
Apr 30, 2019
YUYANG DNU CO., LTD
Sangok Kim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Vehicle safety device using visible light communication
Patent number
10,131,365
Issue date
Nov 20, 2018
YUYANG DNU CO., LTD
Sangok Kim
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
PORTABLE INFORMATION DATA TRANSMITTING DEVICE AND SYSTEM USING VISI...
Publication number
20210194579
Publication date
Jun 24, 2021
YUYANG DNU CO., LTD.
Sangok KIM
F21 - LIGHTING
Information
Patent Application
APPARATUS AND METHOD FOR REGISTERING VISIBLE LIGHT COMMUNICATION DE...
Publication number
20190253140
Publication date
Aug 15, 2019
YUYANG DNU CO., LTD.
Sangok KIM
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Flickerless LED Driver Device
Publication number
20180279435
Publication date
Sep 27, 2018
YUYANG DNU CO., LTD.
Sangok KIM
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD AND APPARATUS FOR CONTROLLING LIGHTING DEVICE, USING VISIBLE...
Publication number
20180276985
Publication date
Sep 27, 2018
YUYANG DNU CO., LTD.
Sangok KIM
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR REGISTERING VISIBLE LIGHT COMMUNICATION DE...
Publication number
20180227052
Publication date
Aug 9, 2018
YUYANG DNU CO., LTD.
Sangok KIM
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD AND DEVICE FOR RECOMMENDING IN-STORE PRODUCT BY USING VISIBL...
Publication number
20180101875
Publication date
Apr 12, 2018
YUYANG DNU CO., LTD.
Sangok KIM
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
VEHICLE SAFETY DEVICE USING VISIBLE LIGHT COMMUNICATION
Publication number
20180065644
Publication date
Mar 8, 2018
YUYANG DNU CO., LTD.
Sangok KIM
B60 - VEHICLES IN GENERAL
Information
Patent Application
ROUTE GUIDANCE METHOD AND DEVICE FOR AUDIENCE IN EXHIBITION HALL BY...
Publication number
20170307382
Publication date
Oct 26, 2017
YUYANG DNU CO., LTD.
Sangok KIM
G01 - MEASURING TESTING
Information
Patent Application
ROUTE GUIDANCE METHOD AND APPARATUS FOR VISUALLY IMPAIRED USING VIS...
Publication number
20170258666
Publication date
Sep 14, 2017
YUYANG DNU CO., LTD.
Sangok KIM
G01 - MEASURING TESTING