Abstract: Disclosed herein is a differential mode filter that includes first and second terminal electrodes provided on a first flange part of a core, and first and second wires wound around a winding core part of the core in an opposite direction to each other and connected respectively to the first and second terminal electrodes. The first and second wires cross each other on the winding core part to form a plurality of crossing portions that include first, second, and third crossing portions that are first, second, and third occurrences counting from the one end of the first and second wires, respectively. A first crossing angle between the first and second wires at the first crossing portion is larger than at least one of second and third crossing angles between the first and second wires at the second and third portions, respectively.

Abstract: A holographic recording medium is superior in moisture resistance, thermal resistance, and rigidity and can certainly detect positional information to carry out a sophisticated recording and reproducing control and a recording and reproducing method thereof. The holographic recording medium 10 is configured to have substrates 12 made of a glass material and a hologram recording layer 14 provided on the substrate 12. Markers 16 are provided on the surface of the substrate 12 as positional information in the hologram recording layer 14.

Abstract: A solid electrolytic capacitor comprises a capacitor element and a board mounting the capacitor element thereon. The capacitor element includes a support made of a valve metal, and an anode and a cathode provided on the support. Anode and cathode lead conductors connected to the anode and the cathode are provided on a first principal surface of the support, and anode and cathode lands are formed on a second principal surface. A conductive portion passing through the board electrically connects either the anode lead conductor to the anode land or the cathode lead conductor to the cathode land.

Abstract: The present invention provides an RF module capable of converting electromagnetic waves in the TE mode to balanced electromagnetic waves in the TEM mode without adjustment and outputting the balanced electromagnetic waves while easily realizing miniaturization. The RF module includes: a waveguide (3) in which a half-wavelength TE mode resonator (2) is formed; an E plane coupling window (4) formed in a wall portion (3a) orthogonal to an H plane out of wall portions (3a) to (3e) constructing the TE mode resonator (2) in the waveguide (3); an output line (5a) provided at the edge on the side of the wall portion (3d) parallel with the H plane on the E plane coupling window (4), and magnetically coupled to electromagnetic waves in the TE mode resonator (2); and another output line (5b) provided at the edge on the side of the wall portion (3e) parallel with the H plane in the E plane coupling window (4), and magnetically coupled to the electromagnetic waves.

Abstract: An optical recording medium 10 having a substrate 11, an optically transparent layer 12, and a first dielectric layer 31, a noble metal oxide layer 23, a second dielectric layer 32, a light absorbing layer 22, a third dielectric layer 33 and a reflecting layer 21 which are disposed between the optically transparent layer 12 and the substrate 11, records and reproduces data into and from the optical recording medium 10 by irradiating the optical recording medium 10 with a laser beam 40 from the optically transparent layer 12 side. ?/NA is set to be not longer than 640 nm when ? designates a wavelength of the laser beam 40 and NA designates a numerical aperture of an objective lens, and setting is done as Pw×0.1?Pr?Pw×0.5 when Pw and Pr designate recording power and reproducing power of the laser beam 40 respectively, while a recording mark train including recording marks each having a length not larger than ?/4 NA is recorded and data are reproduced from the recording mark train.

Abstract: The present invention relates to a magnetic garnet single crystal and a Faraday rotator using the magnetic garnet single crystal and the object of the present invention is to provide a magnetic garnet single crystal which suppresses a generation of crystal defects and a Faraday rotator which improves an extinction ratio. A magnetic garnet single crystal grown by a liquid-phase epitaxial growth method and having the general formula represented by BiaPbbA3−a−bFe5−c−dBcPtdO12 is used, wherein A is at least one kind of element selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, B is at least one kind of element selected from Ga, Al, Sc, Ge and Si, and a, b, c and d are represented by 0.8<a<1.4, 0<b≦20, 0≦c≦0.9 and 0<d≦2.0 respectively.

Abstract: A method of producing a multilayer electronic part having the shape of a substantially rectangular parallelopiped is constituted which has a multilayer body formed by superposing coil conductors and green sheets of a magnetic or nonmagnetic material. Terminal electrodes are formed respectively on both ends of the multilayer body along the direction of the magnetic flux generated when current is caused to flow through the coil conductors in the multilayer body. The terminal electrodes each has a conductive substrate formed within the area of the end of the multilayer body and including a lamination body as a component of the multilayer body.

Abstract: A band pass filter is constituted of a dielectric block 2 having through holes 5 formed from one surface to the opposite surface and a single layered dielectric plate 3 joined to the dielectric block 2 such that the back surface thereof faces the one surface of the dielectric block 2.

Abstract: A thin film transistor which includes an insulation base, first and second gate electrodes, first and second insulation layers, an active layer of semiconductor material, a source electrode and a drain electrode, in which a lateral length of the first gate electrode is narrower than a lateral length of the second gate electrode. Also, the first gate is electrically insulated from the active layer of semiconductor material by the first insulation layer so that the drain current saturates in a high drain voltage region.

Abstract: Disclosed is a magnetic recording medium which comprises a non-magnetic support and a layer containing .alpha.-iron oxide powder as a lower layer and a layer containing ferromagnetic powder as an upper layer which are provided on the non-magnetic support in this order from a side of the non-magnetic support, wherein weight ratios of elements in the whole composition of the .alpha.-iron oxide powder are 0.05 to 5 parts by weight of aluminum (Al) atom and 0.05 to 5 parts by weight of silicon (Si) atom based on 100 parts by weight of iron (Fe) atom, and average existence ratios of elements in terms of the number of atoms forming the surface of the .alpha.-iron oxide powder are 40 or less of Al atom and 1 to 60 of Si atom based on the number of Fe atom as 100.