Inventor · disambiguated record
Sei-Joo Jang
Also filed as: JANG SEI J · JANG SEI-JOO
23 granted patents·8 pending applications·416 citations·filing 1981–2015
96Inventor score
Files withJANG SEI-JOO14PENN STATE RES FOUND3HOECHST CELANESE CORP2ALBEREE LTD INC1DAE RYUN ELECTRONICS INC1
Top patents by PatentIndex Score
31 records- 0194US5032805ARF phase shifterUS ARMY·Filed 1989·Granted Jul 16, 1991·176 cites·8 claims
- 0286US9948169B2Repulsive force conversion drives and centrifugal force conversionJANG SEI JOO·Filed 2015·Granted Apr 17, 2018·3 cites·20 claims
- 0383US5614875ADual block ceramic resonator filter having common electrode defining coupling/tuning capacitorsDAE RYUN ELECTRONICS INC·Filed 1994·Granted Mar 25, 1997·60 cites·5 claims
- 0480US9124163B2Repulsive force conversion drives and centrifugal force conversionJANG SEI-JOO·Filed 2012·Granted Sep 1, 2015·4 cites·20 claims
- 0579US4389229AMethods and apparatus for fabricating a lightguide preformWESTERN ELECTRIC CO·Filed 1981·Granted Jun 21, 1983·35 cites·10 claims
- 0675US6552628B2Dielectric filter for filtering out unwanted higher order frequency harmonics and improving skirt responseFiled 2001·Granted Apr 22, 2003·9 cites·20 claims
- 0772US5345139AElectrostrictive ultrasonic probe having expanded operating temperature rangeHEWLETT PACKARD CO·Filed 1993·Granted Sep 6, 1994·33 cites·12 claims
- 0866US7486003B1Polymer bulk acoustic resonatorJANG SEI-JOO·Filed 2005·Granted Feb 3, 2009·4 cites·7 claims
- 0966US7362035B2Polymer bulk acoustic resonatorPENN STATE RES FOUND·Filed 2006·Granted Apr 22, 2008·6 cites·12 claims
- 1065US5043622AEasily poled 0-3 piezoelectric composites for transducer applicationsHOECHST CELANESE CORP·Filed 1990·Granted Aug 27, 1991·24 cites·11 claims
- 1162US6563397B1Dielectric filter for filtering out unwanted higher order frequency harmonics and improving skirt responseFiled 2000·Granted May 13, 2003·6 cites·14 claims
- 1260US8770780B1Display and illumination units used as part of a buildingJANG TYSON E·Filed 2012·Granted Jul 8, 2014·2 cites·15 claims
- 1357US7884507B2Remote electrical equipment power sourceJANG SEI-JOO·Filed 2007·Granted Feb 8, 2011·4 cites·25 claims
- 1457US6794955B2Dielectric filter for filtering out unwanted higher order frequency harmonics and improving skirt responseFiled 2003·Granted Sep 21, 2004·3 cites·18 claims
- 1556US5251357AWindshield wiper blade with deformable internal cavityALBEREE LTD INC·Filed 1992·Granted Oct 12, 1993·18 cites·8 claims
- 1655US6975181B2Dielectric resonator loaded metal cavity filterJANG SEI-JOO·Filed 2001·Granted Dec 13, 2005·4 cites·3 claims
- 1752US4944891AEasily poled 0-3 piezoelectric composites for transducer applicationsHOECHST CELANESE CORP·Filed 1987·Granted Jul 31, 1990·13 cites·17 claims
- 1851US7741754B1Polymer bulk acoustic resonatorJANG SEI-JOO·Filed 2008·Granted Jun 22, 2010·1 cites·14 claims
- 1948US2010079023A1Repulsive force conversion drives and centrifugal force conversionJANG SEI-JOO·Filed 2009·Application pending·0 cites
- 2045US2010130145A1Amplification system for interference suppression in wireless communicationsJANG SEI-JOO·Filed 2009·Application pending·0 cites
- 2144US2008104813A1Polymer bulk acoustic resonatorJANG SEI-JOO·Filed 2008·Application pending·0 cites
- 2240US6670867B2Dielectric filter for filtering out unwanted higher order frequency harmonics and improving skirt responseFiled 2001·Granted Dec 30, 2003·0 cites·40 claims
- 2339US2009010584A1Bearing assemblyJANG SEI-JOO·Filed 2007·Application pending·0 cites
- 2439US2010130154A1Amplification system for interference suppression in wireless communicationsJANG SEI-JOO·Filed 2009·Application pending·0 cites
- 2538US2005264378A1Dielectric filter for filtering out unwanted higher order frequency harmonics and improving skirt responseJANG SEI-JOO·Filed 2004·Application pending·0 cites
- 2637US6650201B2Dielectric filter for filtering out unwanted higher order frequency harmonics and improving skirt responseFiled 2001·Granted Nov 18, 2003·0 cites·59 claims
- 2737US2011076974A1Flexible wireless network system and method of useJANG SEI-JOO·Filed 2010·Application pending·0 cites
- 2833US2011074504A1Multi mode power output module and method of use with an rf signal amplification systemJANG SEI-JOO·Filed 2010·Application pending·0 cites
- 2932US5993895AMethod for reduction of sinter temperatures of antiferroelectric, lead-based ceramics by use of lithium compound additions and capacitors made with such ceramicsPENN STATE RES FOUND·Filed 1997·Granted Nov 30, 1999·5 cites·12 claims
- 3030US4764492ALead calcium titanate piezoelectric ceramic elementPHILIPS CORP·Filed 1986·Granted Aug 16, 1988·3 cites·5 claims
- 3124US5728138ACardiac defibrillator with multi-phase ferroelectric/antiferroelectric capacitorPENN STATE RES FOUND·Filed 1996·Granted Mar 17, 1998·3 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Sei-Joo Jang 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 →