Inventor
AKASEGAWA AKIHIKO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “AKASEGAWA AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
19 patentsUS7218184B2May 15, 2007
Superconducting filter
FUJITSU LTD25 citations92
US6823201B2Nov 23, 2004
Superconducting microstrip filter having current density reduction parts
FUJITSU LTD21 citations92
US6367266B1Apr 9, 2002
Heat insulation chamber, thermostatic chamber and cryostat
FUJITSU LTD19 citations91
US7567145B2Jul 28, 2009
Superconducting tunable filter
FUJITSU LTD11 citations83
US6980841B2Dec 27, 2005
Filter device having spiral resonators connected by a linear section
FUJITSU LTD10 citations74
US6690957B2Feb 10, 2004
High temperature superconductor film, method for forming the same and superconductor element
FUJITSU LTD11 citations74
US7904129B2Mar 8, 2011
Superconducting device with a disk shape resonator pattern that is adjustable in bandwidth
FUJITSU LTD2 citations63
US7650174B2Jan 19, 2010
Superconductive filter capable of easily adjusting filter characteristic and filter characteristic adjusting method
FUJITSU LTD4 citations63
US7263392B2Aug 28, 2007
Superconductor transmission line having slits of less than λ /4
FUJITSU LTD2 citations63
US6889068B2May 3, 2005
Heat cutoff signal transmission unit and superconducting signal transmission apparatus
FUJITSU LTD6 citations63
US7734319B2Jun 8, 2010
Dual-mode superconductive filter having an opening pattern in a ground plane
FUJITSU LTD3 citations62
US7565188B2Jul 21, 2009
Superconducting filter device having disk resonators embedded in depressions of a substrate and method of producing the same
FUJITSU LTD4 citations61
US7983727B2Jul 19, 2011
Superconductor filter unit
FUJITSU LTD0 citations52
US7587229B2Sep 8, 2009
Superconducting tunable filter having a patch resonator pattern tuned by a variable dielectric constant top plate
FUJITSU LTD1 citations52
US7558608B2Jul 7, 2009
Superconducting device, fabrication method thereof, and filter adjusting method
FUJITSU LTD1 citations52
US7221238B2May 22, 2007
Superconducting filter device
FUJITSU LTD0 citations52
US7970447B2Jun 28, 2011
High frequency filter having a solid circular shape resonance pattern with multiple input/output ports and an inter-port waveguide connecting corresponding output and input ports
FUJITSU LTD0 citations41
US7902945B2Mar 8, 2011
Dual mode ring resonator filter with a dual mode generating line disposed inside the ring resonator
FUJITSU LTD0 citations41
US7283855B2Oct 16, 2007
Dielectric waveguide having a 45° face and method of production thereof
FUJITSU LTD0 citations41