Inventor · disambiguated record
Akihiko Akasegawa
Also filed as: AKASEGAWA AKIHIKO
25 granted patents·7 pending applications·127 citations·filing 1999–2011
94Inventor score
Top patents by PatentIndex Score
32 records- 0188US7218184B2Superconducting filterFUJITSU LTD·Filed 2004·Granted May 15, 2007·25 cites·20 claims
- 0284US7567145B2Superconducting tunable filterFUJITSU LTD·Filed 2006·Granted Jul 28, 2009·11 cites·7 claims
- 0375US6690957B2High temperature superconductor film, method for forming the same and superconductor elementFUJITSU LTD·Filed 2002·Granted Feb 10, 2004·11 cites·25 claims
- 0473US6980841B2Filter device having spiral resonators connected by a linear sectionFUJITSU LTD·Filed 2004·Granted Dec 27, 2005·10 cites·6 claims
- 0570US7650174B2Superconductive filter capable of easily adjusting filter characteristic and filter characteristic adjusting methodFUJITSU LTD·Filed 2006·Granted Jan 19, 2010·4 cites·9 claims
- 0670US7565188B2Superconducting filter device having disk resonators embedded in depressions of a substrate and method of producing the sameFUJITSU LTD·Filed 2006·Granted Jul 21, 2009·4 cites·18 claims
- 0767US7734319B2Dual-mode superconductive filter having an opening pattern in a ground planeFUJITSU LTD·Filed 2008·Granted Jun 8, 2010·3 cites·14 claims
- 0867US6823201B2Superconducting microstrip filter having current density reduction partsFUJITSU LTD·Filed 2002·Granted Nov 23, 2004·21 cites·10 claims
- 0965US8725224B2Superconducting filter with disk-shaped electrode patternSATO KEISUKE·Filed 2009·Granted May 13, 2014·3 cites·7 claims
- 1065US7904129B2Superconducting device with a disk shape resonator pattern that is adjustable in bandwidthFUJITSU LTD·Filed 2009·Granted Mar 8, 2011·2 cites·16 claims
- 1163US8933765B2Filter, transmitter-receiver, and amplifying circuitAKASEGAWA AKIHIKO·Filed 2010·Granted Jan 13, 2015·2 cites·19 claims
- 1262US6889068B2Heat cutoff signal transmission unit and superconducting signal transmission apparatusFUJITSU LTD·Filed 2002·Granted May 3, 2005·6 cites·10 claims
- 1361US7263392B2Superconductor transmission line having slits of less than λ /4FUJITSU LTD·Filed 2005·Granted Aug 28, 2007·2 cites·18 claims
- 1458US8224409B2Three-dimensional filter with movable superconducting film for tuning the filterYAMANAKA KAZUNORI·Filed 2009·Granted Jul 17, 2012·2 cites·12 claims
- 1556US6367266B1Heat insulation chamber, thermostatic chamber and cryostatFUJITSU LTD·Filed 1999·Granted Apr 9, 2002·19 cites·16 claims
- 1655US7558608B2Superconducting device, fabrication method thereof, and filter adjusting methodFUJITSU LTD·Filed 2005·Granted Jul 7, 2009·1 cites·8 claims
- 1754US7587229B2Superconducting tunable filter having a patch resonator pattern tuned by a variable dielectric constant top plateFUJITSU LTD·Filed 2007·Granted Sep 8, 2009·1 cites·16 claims
- 1851US2010073146A1Method Of Controlling Communication Frequencies Of Wireless Communication System, Controller Of The System, And Wireless Communication SystemFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1944US8761849B2Superconductive filter with plurality of resonator patterns formed on surface of dielectric substrateNAKANISHI TERU·Filed 2009·Granted Jun 24, 2014·0 cites·12 claims
- 2043US8549730B2Superconductor deviceNAKANISHI TERU·Filed 2007·Granted Oct 8, 2013·0 cites·3 claims
- 2143US2008269062A1Bandpass filter and forming method of the sameFUJITSU LTD·Filed 2008·Application pending·0 cites
- 2242US7902945B2Dual mode ring resonator filter with a dual mode generating line disposed inside the ring resonatorFUJITSU LTD·Filed 2008·Granted Mar 8, 2011·0 cites·4 claims
- 2341US8952846B2Electronic apparatus, method of making the same, and transceiving deviceAKASEGAWA AKIHIKO·Filed 2011·Granted Feb 10, 2015·0 cites·17 claims
- 2441US7970447B2High frequency filter having a solid circular shape resonance pattern with multiple input/output ports and an inter-port waveguide connecting corresponding output and input portsFUJITSU LTD·Filed 2008·Granted Jun 28, 2011·0 cites·10 claims
- 2540US2008242549A1Superconducting filter deviceFUJITSU LTD·Filed 2008·Application pending·0 cites
- 2640US2008274899A1Superconducting disk resonatorFUJITSU LTD·Filed 2008·Application pending·0 cites
- 2740US2008242550A1Tunable filter and method for fabricating the sameFUJITSU LTD·Filed 2008·Application pending·0 cites
- 2839US2005256008A1Superconducting filter deviceFUJITSU LTD·Filed 2004·Application pending·0 cites
- 2938US7283855B2Dielectric waveguide having a 45° face and method of production thereofFUJITSU LTD·Filed 2003·Granted Oct 16, 2007·0 cites·12 claims
- 3038US2005020452A1Coaxial connector and method for fabricating the same, and superconducting deviceFUJITSU LTD·Filed 2004·Application pending·0 cites
- 3133US7983727B2Superconductor filter unitFUJITSU LTD·Filed 2007·Granted Jul 19, 2011·0 cites·19 claims
- 3231US7221238B2Superconducting filter deviceFUJITSU LTD·Filed 2005·Granted May 22, 2007·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →