Inventor · disambiguated record
Douk-Soon Cha
Also filed as: CHA DOUK-SOON
3 granted patents·2 pending applications·48 citations·filing 2002–2007
70Inventor score
Files withSAMSUNG ELECTRONICS CO LTD5
Top patents by PatentIndex Score
5 records- 0192US6892042B2Coupling apparatus, development cartridge and electrophotographic printer having the sameSAMSUNG ELECTRONICS CO LTD·Filed 2002·Granted May 10, 2005·37 cites·42 claims
- 0268US7437118B2Image forming apparatus with printing medium guideSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Oct 14, 2008·3 cites·17 claims
- 0349US7185747B2One-way power transmission unit, a fusing unit driving apparatus for duplex printer using the same, a method for one way power transmission, and a method for driving a fusing unitSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Mar 6, 2007·8 cites·30 claims
- 0437US2008031670A1Image forming apparatusSAMSUNG ELECTRONICS CO LTD·Filed 2007·Application pending·0 cites
- 0534US2008226344A1Power transmission device, drive transmitting apparatus of image forming apparatus using the same, and image forming apparatus using the sameSAMSUNG ELECTRONICS CO LTD·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →