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USPTO Patent Rankings Data through Dec 31, 2025
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Do Young Choi — 39 Patents

Samsung: 32 patents #3,730 of 75,807Top 5%
MCMedicoson Co.: 3 patents #26 of 122Top 25%
IFInu Research & Business Foundation: 1 patents #9 of 19Top 50%
KCKorea University Research And Business Foundation, Sejong Campus: 1 patents #37 of 142Top 30%
UUUniversity-Industry Cooperation Group Of Kyung Hee University: 1 patents #242 of 797Top 35%
Seoul, KR: #1,217 of 39,741 inventorsTop 4%
Overall (All Time): #81,245 of 4,157,543Top 2%
39 Patents All Time
Do Young Choi has been granted 39 US patents while listed as an inventor at Samsung. The first was granted in 1995 and the most recent in October 2025. Do Young Choi ranks #81,245 of 4,157,543 US inventors in our database (top 2.0%). Patent records list Do Young Choi in Seoul, KR.

Patents per Year

Patents granted per year, 1995 to 2025Bar chart with a peak of 6 patents in 1996.peak 61995: 4 patents19951996: 6 patents1997: 2 patents19971998: 2 patents2002: 3 patents20022003: 1 patents2004: 1 patents20042005: 1 patents2006: 6 patents20062007: 1 patents2008: 1 patents20082009: 1 patents2010: 1 patents20102011: 1 patents2017: 1 patents20172023: 1 patents2024: 1 patents20242025: 5 patents2025

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
5724202 Mode reset method and apparatus for a magnetic recording/reproducing apparatus Gun C. Park, Jae-kab Seo 1998-03-03
5704563 Reel-table driving mechanism with idler friction wheel and reel friction wheel for use in tape recording/reproducing apparatus — 1998-01-06
5636079 Loading apparatus for tape recorders and having a structure for moving a sub-chassis — 1997-06-03
5600507 Power transmission device for tape recorder Gun C. Park, Ohashi Masaharu, Jae-kab Seo 1997-02-04
5568338 Tape rewinding mechanism for magnetic recording/reproducing apparatus Gun C. Park, Young-Ho Cho 1996-10-22
5523907 Door mechanism for a tape recorder Jae-kab Seo, Young-Ho Cho 1996-06-04
5511738 Idler controlling apparatus of a magnetic recording/reproducing apparatus Jae-kab Seo, Gun C. Park 1996-04-30
5508858 Power transferring device for magnetic recording and reproducing apparatus using an electromagnetic plunger Gun C. Park, Jae-kab Seo 1996-04-16
5495373 Reel-guide apparatus of a magnetic recording/reproducing apparatus having cassette reel holding chassis which is lowered to a position on a lower chassis Jae-kab Seo, Young-Ho Cho 1996-02-27
5485324 Double-deck camcorder with perpendicularly installed head drum In Rok Do 1996-01-16
5467234 Idler controlling apparatus of a magnetic recording/reproducing apparatus Gun C. Park, Young-Ho Cho 1995-11-14
5461522 Housing apparatus for a tape recorder and which includes a slidable cassette holder positioned on a plate member via a lever member Jae-kab Seo 1995-10-24
5450259 Cassette lid opening and closing system for magnetic recording and reproducing apparatus Young-Ho Cho, Jae-kab Seo 1995-09-12
5427326 Tape rewinding device for magnetic recording and reproducing apparatus Young-Ho Cho, Gun C. Park 1995-06-27

Nearby-Ranked Inventors

Andre M. J. Boule39
Ga Young An39
Jong-Heon Yang39
Kenta OGATA39
Dongwon Seo39
Darshan R. Kasar39
Daniel Braunstein39
Katharine Geramita39
Yoichi Katsumoto39