Inventor · disambiguated record
Du-Jin Cha
Also filed as: CHA DU-JIN
4 granted patents·4 citations·filing 2008–2010
61Inventor score
Top patents by PatentIndex Score
4 records- 0154US8494584B2Apparatus and method for providing SIM application toolkit in mobile communication systemCHA DU-JIN·Filed 2008·Granted Jul 23, 2013·2 cites·20 claims
- 0249US9326131B2Apparatus and method for providing subscriber identity module (SIM) application toolkit service in mobile communication systemCHA DU-JIN·Filed 2008·Granted Apr 26, 2016·1 cites·12 claims
- 0345US8914069B2Method and apparatus for speed dialing by mobile country code/mobile network code in mobile communication systemCHA DU-JIN·Filed 2008·Granted Dec 16, 2014·0 cites·25 claims
- 0445US8295197B2Apparatus and method of determining maximum segment size of data call in mobile communication systemYOON DAE-EUI·Filed 2010·Granted Oct 23, 2012·1 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Du-Jin Cha files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →