Fujitsu Corporation

Kabushiki Kaisha Toshiba

Tokyo Shibaura Denki Kabushiki Kaisha

Fuitsu Limited

Masayuki Itoh

Masakazu Kishi

Hajime Kubota

Yoshinori Mesaki

Hiroshi Kurosawa

Tomokazu Nakashima

Kiyokazu Moriizumi

Kunihiko Wada

Katsumi Takada

Takao Ishikawa

Masashi Takahashi

Masami Miyauchi

Masahiro Saitou

Kazuhide Matsumoto

Masako Okazaki

Osamu Watanabe

Takao Suzuki

Seiichi Suenaga

Masaaki Tamatani

Kazuo Saito

Yasuhisa Ohtake

Takeshi Takahara

Masayuki Sagoi

Michihiko Inaba

Hiromitsu Takeda

Kazuhiro Yasuda

Yuji Maeda

Akinori Koga

Shinji Arai

Itaru Chida

Emiko Higashinakagawa

Yamato Kaminaka

Kagetaka Amano

Kazutoshi Takaishi

Keizoh Honda

Masaru Itoh

Kanemitsu Sato

Yoshikazu Takahashi

Masaharu Kantou

Tomokazu Nakasima

Yoshihisa Satou

A trouble information search method includes, storing information on a circuit component, information on a use state of the circuit component, and trouble information on the circuit component, receiving input of information on a circuit component and information on a use state of the circuit component, identifying information on a trouble that has occurred with a circuit component having detailed information similar to detailed information on the circuit component and a circuit component for use in a state similar to a use state of the circuit component, and outputting information on the identified trouble.

Trouble information search method and trouble information search apparatus

A crystal unit includes: a capacitor body in which a plurality of light-transmitting dielectrics and a plurality of internal electrodes are alternately stacked; a crystal piece arranged above the capacitor body and having excitation electrodes on both surfaces thereof; an external electrode formed on a surface of the capacitor body; and a first conductor portion formed in an inner layer of the capacitor body, and including one end electrically coupled to a first internal electrode among the plurality of internal electrodes, and the other end electrically coupled to the external electrode.

Crystal unit and method of adjusting crystal unit

A method of manufacturing a coil component, includes forming a conductive pattern on a substrate; forming an opening portion over a surface of the substrate so as to be disposed between neighboring conductors of the conductive pattern, the opening portion having a depth that is equivalent to or greater than a clearance dimension between the neighboring conductors; and forming a coil pattern by growing the conductive pattern including by plating.

Method of manufacturing coil component

Enclosed herein is a component retrieve device including a memory, and a processor coupled to the memory and configured to receive information for specifying a retrieval target component, refer to a retrieval history of a retrieving person who has retrieved the retrieval target component, specify components similar to the retrieval target component, and output information of the specified components.

Component retrieve device and component retrieve method

A crystal oscillator includes a crystal resonator; an inverting amplifier configured to be coupled between a pair of excitation electrodes of the crystal resonator; and a control circuit configured to initiate an alarm and raise gain of the inverting amplifier in a case where an index value for representing oscillation amplitude of the crystal resonator in an oscillation state is equal to or lower than a reference value.

Crystal oscillator, crystal resonator controlling method, and crystal resonator controlling device

A transformer device includes: a transformer that includes a magnetic body core and a winding; a case that houses the transformer; an external terminal that is provided in the case; a relay section that is provided in the case and to which an end portion of the winding of the transformer is connected; and a conducting wire of which one end is wound around the external terminal and bonded thereto, and another end is connected to the relay section.

Manufacturing method of transformer device

A method of manufacturing an electronic component includes forming a component body into which elements are built; and a metal plate electrode that is joined to the component body by conductive paste so as to be electrically coupled to the elements, the metal plate electrode exceeding in size a surface of the component body onto which the conductive paste is deposited.

Electronic component and component-embedded substrate

A crystal oscillator device is disclosed. The crystal oscillator device includes: a casing; a crystal piece provided in the casing; a pair of excitation electrodes provided on the crystal piece; a magnetic flux generating member provided on the crystal piece; a coil through which magnetic flux from the magnetic flux generating member passes; and an alarm generator configured to generate an alarm based on a signal whose amplitude is equal to or less than a reference value, the signal being generated in the coil.

Crystal oscillator device and method of measuring crystal oscillator characteristic

A crystal oscillator device is disclosed. The crystal oscillator device includes: a crystal piece provided in a casing; a pair of excitation electrodes provided on the crystal piece; a light emitting element configured to emit light that is to be reflected by one of the excitation electrodes to generate reflected light; a light receiving element configured to receive the reflected light; and an alarm generator configured to generate an alarm based on a signal upon an index value being less than or equal to a reference value, the signal being generated in the light receiving element, the index value representing an oscillation level of the crystal piece in an oscillating state.

A crystal oscillator device is disclosed. The crystal oscillator device includes: a crystal oscillator including a casing, a crystal piece, a pair of excitation electrodes configured to excite a main vibration, and a pair of sub vibration electrodes configured to excite a sub-vibration; and an alarm generator configured to generate an alarm based on a signal whose amplitude is equal to or less than a reference value, the signal being generated in the sub vibration electrodes.

A crystal oscillator device is disclosed. The crystal oscillator device includes a casing; a crystal piece; a pair of excitation electrodes; a transmission antenna electrically coupled to one of the excitation electrodes; a reception antenna configured to receive a radio wave from the transmission antenna; and an alarm generator configured to generate an alarm based on a signal whose amplitude is equal to or less than a reference value, the signal being received by the reception antenna.

An electronic component includes: a component body into which elements are built; and a metal plate electrode that is joined to the component body by conductive paste so as to be electrically coupled to the elements, wherein the metal plate electrode exceeds in size a surface of the component body onto which the conductive paste is deposited.

A method for inspecting a crystal unit, the method includes: generating a sub-vibration in a crystal blank of the crystal unit by applying an input signal to a plurality of electrodes formed on the crystal blank; obtaining frequency characteristics of impedance between the plurality of electrodes from an output signal of the plurality of electrodes; and comparing the frequency characteristics obtained with reference frequency characteristics indicating quality of the crystal unit.

Method for inspecting crystal unit by analyzing frequency characteristics of impedance

A crystal oscillator device is disclosed. The crystal oscillator device includes a crystal piece provided in a casing; a pair of excitation electrodes provided for the crystal piece; a coil provided on the crystal piece; a magnetic flux generating member configured to generate magnetic flux passing through the coil; and an alarm generator configured to generate an alarm based on a signal whose amplitude is equal to or less than a reference value, the signal being generated in the coil.

A transformer apparatus includes: a case with a component mounting surface; an external-terminal provided on a wall adjacent to the component mounting surface of the case; a transformer provided on the component mounting surface and including a magnetic core and a winding; and a support provided in a position between the external-terminal and the core on the component mounting surface, and including a first-slit in a top surface of the support, the first-slit holding a first-conductor of the winding drawn from the core and a second-conductor drawn from the external-terminal, wherein the first-conductor is held at one end of the first-slit by a conductive member, the second-conductor is held at the other end of the first-slit by the conductive member, the first-conductor and the second-conductor are electrically connected through the conductive member, and the first-conductor and the second-conductor have surplus lengths.

Growing community of inventors

Kawasaki, Japan

Masayuki Itoh