Inventor · disambiguated record
Takami Hirai
Also filed as: HIRAI TAKAMI
38 granted patents·1,092 citations·filing 1991–2013
98Inventor score
Top patents by PatentIndex Score
38 records- 0198US5232765ADistributed constant circuit board using ceramic substrate materialNGK INSULATORS LTD·Filed 1991·Granted Aug 3, 1993·186 cites·6 claims
- 0297US6542050B1Transmitter-receiverNGK INSULATORS LTD·Filed 2000·Granted Apr 1, 2003·227 cites·39 claims
- 0393US6828881B2Stacked dielectric filterNGK INSULATORS LTD·Filed 2002·Granted Dec 7, 2004·190 cites·39 claims
- 0492US5608364ALayered stripline filter including inductive coupling adjustment stripNGK INSULATORS LTD·Filed 1994·Granted Mar 4, 1997·55 cites·2 claims
- 0586US8558640B2Directional couplerHIRAI TAKAMI·Filed 2010·Granted Oct 15, 2013·10 cites·28 claims
- 0686US6294967B1Laminated type dielectric filterNGK INSULATORS LTD·Filed 1999·Granted Sep 25, 2001·44 cites·35 claims
- 0785US5373271ADielectric filter having coupling electrodes for connecting resonator electrodes, and method of adjusting frequency characteristic of the filterNGK INSULATORS LTD·Filed 1993·Granted Dec 13, 1994·42 cites·2 claims
- 0884US8421215B2Laminated and sintered ceramic circuit board, and semiconductor package including the circuit boardTANI MAKOTO·Filed 2011·Granted Apr 16, 2013·11 cites·14 claims
- 0983US5374909AStripline filter having internal ground electrodesNGK INSULATORS LTD·Filed 1993·Granted Dec 20, 1994·31 cites·21 claims
- 1080US8847681B2Combiner for Doherty amplifierNAMERIKAWA MASAHIKO·Filed 2010·Granted Sep 30, 2014·7 cites·12 claims
- 1179US5576672ALayered stripline filter including capacitive coupling electrodesNGK INSULATORS LTD·Filed 1995·Granted Nov 19, 1996·25 cites·13 claims
- 1278US6563058B2Multilayered circuit board and method for producing the sameNGK INSULATORS LTD·Filed 2001·Granted May 13, 2003·23 cites·10 claims
- 1378US5497130ALayered transmission line filter with a capacitively coupled electrode in a layer opposing stripline resonatorsNGK INSULATORS LTD·Filed 1994·Granted Mar 5, 1996·27 cites·15 claims
- 1477US6429829B1Antenna deviceNGK INSULATORS LTD·Filed 2000·Granted Aug 6, 2002·19 cites·6 claims
- 1576US9012786B2Circuit board for high-capacity modules, and a production method of the circuit boardNGK INSULATORS LTD·Filed 2012·Granted Apr 21, 2015·4 cites·14 claims
- 1676US5448209ALaminated dielectric filterNGK INSULATORS LTD·Filed 1994·Granted Sep 5, 1995·31 cites·9 claims
- 1775US7800465B2Passive componentSOSHIN ELECTRIC·Filed 2006·Granted Sep 21, 2010·7 cites·5 claims
- 1875US6351239B1Electronic device in which integrated antenna and filter both have balanced terminalsNGK INSULATORS LTD·Filed 2000·Granted Feb 26, 2002·26 cites·13 claims
- 1974US8958215B2Circuit board for peripheral circuits of high-capacity modules, and a high-capacity module including a peripheral circuit using the circuit boardNGK INSULATORS LTD·Filed 2013·Granted Feb 17, 2015·3 cites·12 claims
- 2070US8487439B2Laminated and sintered ceramic circuit board, and semiconductor package including the circuit boardTANI MAKOTO·Filed 2011·Granted Jul 16, 2013·3 cites·13 claims
- 2169US6566988B2Stacked type dielectric resonatorNGK INSULATORS LTD·Filed 2001·Granted May 20, 2003·9 cites·7 claims
- 2267US9247633B2Circuit board for peripheral circuits of high-capacity modules, and a high-capacity module including a peripheral circuit using the circuit boardNGK INSULATORS LTD·Filed 2013·Granted Jan 26, 2016·2 cites·8 claims
- 2367US9064758B2High-capacity module including the peripheral circuit using the circuit board and the circuit board concerned for peripheral circuits of a high-capacity moduleNGK INSULATORS LTD·Filed 2012·Granted Jun 23, 2015·2 cites·17 claims
- 2467US6538534B2Stacked type dielectric filterNGK INSULATORS LTD·Filed 2000·Granted Mar 25, 2003·8 cites·4 claims
- 2563US6356244B1Antenna deviceNGK INSULATORS LTD·Filed 2000·Granted Mar 12, 2002·15 cites·10 claims
- 2662US5344695ADielectric filter having coupling electrodes for connecting resonator electrodes, and method of adjusting frequency characteristic of the filterNGK INSULATORS LTD·Filed 1992·Granted Sep 6, 1994·17 cites·13 claims
- 2757US5185304ADielectric ceramic composition of BaO, TiO2, Nd2 O3, Sm2 O3 and Bi2 O3NGK INSULATORS LTD·Filed 1991·Granted Feb 9, 1993·12 cites·13 claims
- 2855US5412358ALayered stripline filterNGK INSULATORS LTD·Filed 1993·Granted May 2, 1995·11 cites·34 claims
- 2953US6765459B2Laminated dielectric resonator and laminated dielectric filterNGK INSULATORS LTD·Filed 2002·Granted Jul 20, 2004·3 cites·14 claims
- 3053US5262595ADielectric ceramic body including TiO2 dispersion in crystallized cordierite matrix phase, method of producing the same, and circuit board using the sameNGK INSULATORS LTD·Filed 1991·Granted Nov 16, 1993·12 cites·10 claims
- 3151US7348868B2Passive component having stacked dielectric layersSOSHIN ELECTRIC·Filed 2004·Granted Mar 25, 2008·4 cites·9 claims
- 3250US8912106B2Glass-ceramic composite materialNGK INSULATORS LTD·Filed 2013·Granted Dec 16, 2014·0 cites·4 claims
- 3345US8878625B2Impedance matching deviceHIRAI TAKAMI·Filed 2011·Granted Nov 4, 2014·0 cites·12 claims
- 3443US6226423B1Optical waveguide elementNGK INSULATORS LTD·Filed 1999·Granted May 1, 2001·11 cites·4 claims
- 3541US5556585ADielectric ceramic body including TIO2 dispersion in crystallized cordierite matrix phase, method of producing the same, and circuit board using the sameNGK INSULATORS LTD·Filed 1994·Granted Sep 17, 1996·7 cites·5 claims
- 3641US5182240ADielectric ceramic composition of BaO, TiO2,Nd2 O3, Sm2 3 and Al2 O3NGK INSULATORS LTD·Filed 1991·Granted Jan 26, 1993·7 cites·2 claims
- 3736US7567152B2Passive partSOSHIN ELECTRIC·Filed 2005·Granted Jul 28, 2009·0 cites·9 claims
- 3831US5248465APreparation process of high-permittivity materialNGK INSULATORS LTD·Filed 1992·Granted Sep 28, 1993·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →