Inventor
Hyun-cheol Lee
Inventor
Suwon-si, KR
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography36%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables8%
H04NPictorial communication, e.g. television8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%
G11CStatic stores5%
H01GCapacitors5%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%
B41JTypewriters3%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids3%
F25BRefrigeration machines, plants or systems3%
PatentTitleYear
10,948,220Two-stage compressor202110,281,595Method and apparatus for distinguishing radionuclide by using plastic scintillator20199,972,448Supercapacitor electrode material having combined porous titanium oxide and carbon-based material, and method for manufacturing same20189,768,469'Solid electrolyte containing ionic liquid'20179,229,360'Electrophotographic image forming apparatus to control the supply of toner to the developer'20169,231,273'Positive electrode active material for lithium secondary battery, method of manufacturing the same, and lithium secondary battery including the material'20168,949,064'Measurement method and measurement system using the same'20158,583,013'Developing unit and image forming apparatus having the same'20138,073,366'Developing unit and image forming apparatus having the same'20117,873,305'Developing unit and image forming apparatus having the same'20117,761,038'Image forming apparatus and developer supplying device to improve printing quality'20107,702,259'Multi-pass image forming apparatus and image forming method using the same for providing plural print modes with different numbers of passes depending on desired print speed and image quality'20107,372,762'Semiconductor memory device'20087,203,119'Semiconductor memory device'20077,171,137'Developing apparatus and image forming equipment and method thereof'20077,046,940'Developing device having a developer scatter prevention unit and an electrophotographic image forming apparatus using the same'20066,882,813'Roller spacing device'20056,845,220'Development device to detect a developing gap'20056,786,480'Sheet conveying apparatus for image information processor'20046,734,586'Alternator having vacuum pump capable of improving cooling characteristic'20046,672,581'Sheet conveying apparatus for an image information processor'20046,641,130'Sheet conveying apparatus for image information processor'20036,321,051'Apparatus for cleaning OPC drum in image forming device'20016,167,222'Image formation apparatus and method capable of easily removing jammed paper'20006,137,980'Developing machine'20004,392,756'Serial printing apparatus'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–2004Based in Seoul, KR· patent location history
2000–2016Patents assigned to SAMSUNG ELECTRONICS CO LTD (17)· patent assignee history
2005–2016Based in Suwon-si, KR· patent location history
2007–2008Patents assigned to HYNIX SEMICONDUCTOR INC (2)· patent assignee history
2007–2008Based in Kyungki-do, KR· patent location history
2011–2015Patents assigned to LEE HYUN-CHEOL (3)· patent assignee history
2011–2013Patents assigned to MOON JI-WON (2)· patent assignee history
2016–2018Patents assigned to SAMSUNG SDI CO LTD (3)· patent assignee history
2016–2018Based in Daejeon, KR· patent location history
2021Based in Taipei, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SAMSUNG ELECTRONICS CO LTD | 17 | 2000–2016 |
| LEE HYUN-CHEOLself | 3 | 2011–2015 |
| SAMSUNG SDI CO LTD | 3 | 2016–2018 |
| HYNIX SEMICONDUCTOR INC | 2 | 2007–2008 |
| MOON JI-WON | 2 | 2011–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Suwon-si, KR | 10 | 2005–2016 |
| Seoul, KR | 7 | 1983–2004 |
| Daejeon, KR | 3 | 2016–2018 |
| Kyungki-do, KR | 2 | 2007–2008 |
| Taipei, TW | 1 | 2021 |