Choi; Youngsun

Patent Applications and Registrations

Patent applications and USPTO patent grants for Choi; Youngsun.The latest application filed is for "nonreciprocal optical transmission device and optical apparatus including the same".

Company Profile

2.20.16

Choi; Youngsun - Seoul KR
Choi; Youngsun - Daejeon KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Nonreciprocal optical transmission device and optical apparatus including the same Grant 11,262,606 - Yang , et al. March 1, 2	2022-03-01
Nonreciprocal Optical Transmission Device And Optical Apparatus Including The Same App 20200257142 - A1	2020-08-13
Nonreciprocal optical transmission device and optical apparatus including the same Grant 10,670,891 - Yang , et al.	2020-06-02
Nonreciprocal Optical Transmission Device And Optical Apparatus Including The Same App 20180188559 - YANG; Kiyeon ; et al.	2018-07-05
Compound, method for preparation of the same, and lithium secondary battery comprising the same Grant 9,373,842 - Jung , et al. June 21, 2	2016-06-21
Cathode active material for lithium secondary battery Grant 9,236,608 - Chang , et al. January 12, 2	2016-01-12
Electrode active material for lithium secondary battery Grant 9,093,678 - Park , et al. July 28, 2	2015-07-28
Electrode active material for lithium secondary battery Grant 9,083,022 - Park , et al. July 14, 2	2015-07-14
Novel Compound, Method For Preparation Of The Same, And Lithium Secondary Battery Comprising The Same App 20150017513 - JUNG; YoungHwa ; et al.	2015-01-15
Electrode Active Material For Lithium Secondary Battery App 20140356719 - PARK; Sinyoung ; et al.	2014-12-04
Electrode Active Material For Lithium Secondary Battery App 20140346394 - PARK; Sinyoung ; et al.	2014-11-27
Compound, method for preparation of the same, and lithium secondary battery comprising the same Grant 8,889,319 - Jung , et al. November 18, 2	2014-11-18
Electrode active material for lithium secondary battery Grant 8,859,148 - Park , et al. October 14, 2	2014-10-14
Cathode Active Material For Lithium Secondary Battery App 20130284972 - CHANG; Sung Kyun ; et al.	2013-10-31
Cathode active material for lithium secondary battery Grant 8,497,039 - Chang , et al. July 30, 2	2013-07-30
Cathode active material for lithium secondary battery Grant 8,492,032 - Chang , et al. July 23, 2	2013-07-23
Cathode active material for lithium secondary battery Grant 8,481,213 - Chang , et al. July 9, 2	2013-07-09
Novel Compound, Method For Preparation Of The Same, And Lithium Secondary Battery Comprising The Same App 20130065117 - Jung; YoungHwa ; et al.	2013-03-14
Precursor for the preparation of a lithium composite transition metal oxide Grant 8,394,299 - Shin , et al. March 12, 2	2013-03-12
Precursor for preparation of lithium transition metal oxide Grant 8,268,198 - Shin , et al. September 18, 2	2012-09-18
Cathode Active Material For Lithium Secondary Battery App 20120064395 - Chang; Sung Kyun ; et al.	2012-03-15
Novel Precursor For The Preparation Of A Lithium Composite Transition Metal Oxide App 20120043499 - Shin; Ho Suk ; et al.	2012-02-23
Cathode Active Material For Lithium Secondary Battery App 20120012781 - CHANG; Sung Kyun ; et al.	2012-01-19
Cathode Active Material For Lithium Secondary Battery App 20120012780 - CHANG; Sung Kyun ; et al.	2012-01-19
Cathode Active Material For Lithium Secondary Battery App 20110195303 - CHANG; Sung Kyun ; et al.	2011-08-11
Cathode active material for lithium secondary battery Grant 7,935,444 - Chang , et al. May 3, 2	2011-05-03
Precursor For Preparation Of Lithium Transition Metal Oxide App 20110089367 - Shin; Ho Suk ; et al.	2011-04-21
Electrode Active Material For Lithium Secondary Battery App 20110079752 - PARK; Sinyoung ; et al.	2011-04-07
Cathode Active Material For Lithium Secondary Battery App 20100148115 - Chang; Sung Kyun ; et al.	2010-06-17

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