Inventor

Sang Gi Lee

Inventor

Daejeon, KR

Overview

1993–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 61 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Jprimary

B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%

C08JWorking-up13%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds13%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%

A61LMethods or apparatus for sterilising materials or objects in general7%

C07CAcyclic or carbocyclic compounds5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%

C08LCompositions of macromolecular compounds5%

H10DInorganic electric semiconductor devices2%

B02CCrushing, pulverising, or disintegrating in general2%

PatentTitleYear

11,126,113Structure for releasing internal pressure in development cartridge when refilling toner2021 11,112,750Development cartridge having a switch member to rotate developing unit to a development position2021 10,857,044Method for preparing superabsorbent polymer2020 10,850,260Super absorbent polymer and method for producing same2020 10,822,441Super absorbent polymer2020 10,759,912Superabsorbent polymer and preparation method thereof2020 10,696,800Method for preparing superabsorbent polymer, and superabsorbent polymer prepared thereby2020 10,653,812Method of preparing superabsorbent polymer2020 10,654,959Method for preparing superabsorbent polymer2020 10,632,451Method for preparing superabsorbent polymer and superabsorbent polymer prepared thereby2020 10,482,824Digital-to-analog converter, data driver and display apparatus including the same2019 10,450,425Super absorbent polymer and method for preparing the same2019 10,335,766Super absorbent polymer and manufacturing method thereof2019 10,300,910Apparatus for driving rear-wheels of environment-friendly vehicle2019 10,150,829Super absorbent polymer and preparation method thereof2018 10,086,361Super absorbent polymer and a preparation method thereof2018 10,065,175Superabsorbent polymer having high absorption rate under load and preparation method thereof2018 10,052,611Method of preparing superabsorbent polymer2018 9,950,309Superabsorbent polymer having high absorption rate under load and preparation method thereof2018 9,950,308Superabsorbent polymer2018 9,708,452'Method of preparing superabsorbent polymer'2017 9,701,763'Method for preparing super absorbent polymer'2017 9,656,242'Method for preparing a super absorbent polymer'2017 9,656,296'Preparation method of a super absorbent polymer'2017 9,517,446'Super absorbent polymer and a preparation method thereof'2016 9,120,100'Shredder for super absorbent polymer and preparation method of super absorbent polymer using the same'2015 9,029,480'Preparation method of superabsorbent polymer'2015 8,919,683'Shredder for super adsorbent polymer and preparation method of super absorbent polymer using the same'2014 8,829,066'Polymerization reactor for producing super absorbent polymers and method of producing super absorbent polymers using the polymerization reactor'2014 8,697,812'Preparation method of superabsorbent polymer'2014 8,524,628'Phosphorus-containing catalyst composition and hydroformylation process using the same'2013 8,053,605'Phosphorus-containing catalyst composition and hydroformylation process using the same'2011 8,049,257'CMOS image sensor'2011 7,943,801'Catalyst composition including phosphite ligands and hydroformylation method using the same'2011 7,939,694'Method for the hydroformylation of olefins and apparatus using the same'2011 7,897,441'Method of fabricating a CMOS image sensor'2011 7,732,246'Method for fabricating vertical CMOS image sensor'2010 7,695,992'Vertical type CMOS image sensor and fabricating method thereof'2010 7,625,774'Method of manufacturing CMOS image sensor'2009 7,612,228'Synthetic method of glycol diesters from reaction of glycol monoesters and linear aliphatic carboxylic acids'2009 7,550,406'Phosphorus-containing catalyst composition and hydroformylation process using the same'2009 7,453,008'Synthetic method of glycol diesters from reaction of glycol monoesters and linear aliphatic carboxylic acids'2008 7,423,307'CMOS image sensor and method for fabricating the same'2008 7,416,912'Method of fabricating CMOS image sensor'2008 7,413,944'CMOS image sensor and method of manufacturing the same'2008 7,407,828'CMOS image sensor and manufacturing method thereof'2008 7,378,295'CMOS image sensor and fabricating method thereof'2008 7,368,357'Semiconductor device having a graded LDD region and fabricating method thereof'2008 7,358,563'CMOS image sensor and method for fabricating the same'2008 7,339,155'CMOS image sensor and method for fabricating the same'2008 7,279,763'CMOS image sensor having photodiode and method for manufacturing the same'2007 7,232,731'Method for fabricating transistor of semiconductor device'2007 7,026,203'Method for forming dual gate electrodes using damascene gate process'2006 6,812,085'Semiconductor device and method for fabricating same'2004 6,674,467'Digital still camera with image preview using a first and second memory and method for using the same'2004 6,498,379'Semiconductor device and method for fabricating same'2002 6,389,230'Zoom camera with focusing error correcting function and control method for the same'2002 6,271,092'Method for fabricating a semiconductor device'2001 6,242,937'Hot carrier measuring circuit'2001 5,994,556'Bis(ortho-diarylphosphinophenyl)-tetrahydro-bi(1,3-oxazole) and a preparation method thereof'1999 5,219,474'Liquid fire extinguishing composition'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2004Based in Chungcheongbuk-do, KR· patent location history

2002–2004Based in Changwon-si, KR· patent location history

2006–2019Based in Bucheon-si, KR· patent location history

2007–2011Patents assigned to DONGBU ELECTRONICS CO LTD (12)· patent assignee history

2008–2020Patents assigned to LG CHEMICAL LTD (33)· patent assignee history

2008–2020Based in Daejeon, KR· patent location history

2009–2019Based in Gyeonggi-do, KR· patent location history

2014–2017Patents assigned to HAN CHANG-SUN (5)· patent assignee history

2014–2017Patents assigned to KIM GI-CHEUL (5)· patent assignee history

2014–2017Patents assigned to KIM KYU-PAL (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LG CHEMICAL LTD	33	2008–2020
DONGBU ELECTRONICS CO LTD	12	2007–2011
HAN CHANG-SUN	5	2014–2017
KIM GI-CHEUL	5	2014–2017
KIM KYU-PAL	5	2014–2017

Locations

Location	Patents	Span
Daejeon, KR	33	2008–2020
Bucheon-si, KR	14	2006–2019
Gyeonggi-do, KR	3	2009–2019
Chungcheongbuk-do, KR	2	2002–2004
Changwon-si, KR	2	2002–2004