Sumida Corporation

Anelva Corporation

Naoki Sasaki

Tomoyuki Kanno

Jiayu Chen

Hideki Yoshizawa

Yoshio Kawahata

A filter component assembly kit includes a bobbin that is configured with first and second members and a core that is in a quadrangular frame shape. When the first member is assembled with the second member, a through hole is formed in the bobbin. The through hole extends in a first direction. The core is configured with first and second extension bars. The first and second extension bars extend in parallel in the first direction. When the first extension bar is disposed in the through hole of the bobbin, rotation of the core around the first extension bar is prevented. First allowance of the first extension bar in a second direction, which is perpendicular to the first direction, in the through hole is larger than second allowance of the first extension bar in a third direction, which is perpendicular to the first and second directions, in the through hole.

Filter component and bobbin

Filter component assembly kit, filter component, and method for manufacturing the filter component

A magnetic core () has a core shaft part which is inserted into a bobbin part, and configures a magnetic path of magnetic flux formed by a coil (); the magnetic core () is configured by combining a pair of magnetic components (); the magnetic components () have core ends formed so as to cross a core shaft part; the base part () has a fitting part which fits with at least one of the pair of core ends, when the core shaft part is inserted into the bobbin part; and the coil component () is characterized in that the pair of magnetic components () and the bobbin base () are fixed to each other, while being bound by a sheet-like fixation member () which extends over the core end and the base part having been fitted to each other.

Coil component and method of manufacturing coil component

An inductor () includes a pair of magnetic members (cores ()), a main body having coils (), and a sheet-formed fixation member (), wherein the fixation member () is bound across the cores () and the main body, to thereby fix the cores () which configure a closed magnetic path, and to thereby fix at least one of the cores () to the main body.

Inductor and method of manufacturing inductor

A transformer-type compact and thin coil device having a high coupling degree between a primary coil and a secondary coil, and a transformer device in which a plurality of sets of the transformer-type coil devices are incorporated. A coil device includes a first winding portion in which a primary and secondary coil wires are wound in bifilar form so as to arrange them alternately in a plane, a second winding portion in which a secondary coil wire is wound to arrange it in a plane parallel to the plane of the first winding portion, and a secondary coil connecting portion which connects an inner diameter portions of the secondary coil wires of the first and second winding portions. A transformer device is formed by incorporating a plurality of sets of the transformer-type coil devices each formed in above manner.

Coil device, composite coil device, and transformer device

A high-voltage discharge lamp operating device capable of reducing the size and the weight of a DC-DC converter circuit, and accordingly of the operating device without generating any magnetic saturation of a transformer core part even when igniting a lamp in the operating device for operating a HID head lamp for a vehicle. A PWM control unit () comprises a power control unit () which receives a voltage detection signal and controls the duty of the signal waveform of a PWM control signal, an error amplifier () which compares the output from the power control unit () with the reference voltage and outputs an error level signal, an oscillation frequency control means () for outputting a rectangular wave signal so as to realize a high frequency for a predetermined period from the ignition of a HID lamp () and a low frequency after the elapse of a predetermined period, a triangular wave oscillator () which converts the rectangular wave signal into the triangular signal, and a comparator () which compares the error level signal with the triangular wave signal and outputs to a switching element () the PWM control signal on H-level during the period in which the triangular wave signal is high.

High-voltage discharge lamp operating device

In a method of manufacturing a liquid crystal panel including a panel assembly, a nozzle mechanism is located at a vicinity of a liquid crystal filling port of the panel assembly with leaving a space between an intake of the nozzle mechanism and the liquid crystal filling port. The nozzle mechanism sucks surrounding gaseous to generate negative pressure and a continuous gaseous flow around the liquid crystal filling port. The negative pressure discharges an excess of liquid crystal filled in the panel assembly while the continuous gaseous flow blows the discharged liquid crystal. The blown liquid crystal is sucked into the intake of the panel assembly. Thus, a gap of the panel assembly is adjusted within a proper range in a short time.

Growing community of inventors

Natori, Japan

Naoki Sasaki