Real Time Touch

new TOP 200 Companies filing patents this week

new Companies with the Most Patent Filings (2010+)

Real Time Touch

Meidensha Corporation patents

Recent patent applications related to Meidensha Corporation. Meidensha Corporation is listed as an Agent/Assignee. Note: Meidensha Corporation may have other listings under different names/spellings. We're not affiliated with Meidensha Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Meidensha Corporation-related inventors

Direct-current interruption device

To provide a dc interruption apparatus requiring no circuit for producing current zero point forcibly and having a simplified construction adequate for cost reduction, one end of a main contact 30a, 30b, 30c for each phase of a dc high speed vacuum circuit breaker 30 is connected with a positive output end of a corresponding phase of a rectifier 20 for converting ac power to dc power with semiconductor devices arranged in a bridge. The other ends of the main contacts 30a, 30b, 30c are connected together to form a positive side output line 40. ... Meidensha Corporation

Electrode material and method for manufacturing electrode material

It is an electrode material that is used as an electrode contact of a vacuum interrupter and that contains one or more parts by weight of a heat-resistant element and one part by weight of cr, the remainder being cu and an unavoidable impurity. A part of cr powder and the heat-resistant element powder are mixed together, and this mixed powder is sintered such that a peak corresponding to cr element disappears in x-ray diffraction measurement. ... Meidensha Corporation

Electronic control device

Electronic component unit (20) is received in inside of housing (1) prepared by joining base (2) and cover (3). Sealing groove (24) for sealing material (24a) is formed on joining surface (21) of base (2). ... Meidensha Corporation

Method for manufacturing electrode material and electrode material

It is a method for manufacturing an electrode material containing cu, cr, a heat-resistant element, and a low melting metal. A cr powder and a heat-resistant element powder are mixed together in a ratio such that the cr is greater than the heat-resistant element by weight. ... Meidensha Corporation

Method for producing electrode material and electrode material

It is a method for producing an electrode material containing cu, cr and a heat-resistant element. A heat-resistant element powder and a cr powder are mixed together in a ratio such that the heat-resistant element is less than the cr by weight. ... Meidensha Corporation

Rotary machine

This rotary machine (1), provided with a rotary shaft (40) rotatably disposed in a casing (30), comprises: an end plate (35) disposed at one end side in the axial direction of the casing (30); a recess section (35a) formed in the end plate (35) and recessed toward the inside of the casing; a through hole (35b) formed in the recess section (35a) and through which one end section (41) of the rotary shaft (40) is inserted; and a shaft grounding device (70) which is provided in the recess section (35a), is brought into contact with the one end section (41) of the rotary shaft (40) which is inserted through the through hole (35b), and eliminates a shaft voltage generated in the rotary shaft (40).. . ... Meidensha Corporation

Method and device for modifying resin

It is a modification apparatus (1) of a resin film (6) for making the surface of the resin film (6) hydrophilic. The modification apparatus (1) has a chamber (2), an unsaturated hydrocarbon supply device (3), and an ozone generating device (4). ... Meidensha Corporation

Rotating electrical machine coil

. . According to the present invention, a wire insulation layer (112) and an interlayer insulation layer (113) are formed on a wire (111). A main insulation layer (114) is formed by winding highly thermally conductive mica tape. ... Meidensha Corporation

Method and device for modifying resin

It is a method for modifying a resin (6), the method for hydrophilizing the surface of the resin (6). High-concentration ozone gas and an unsaturated hydrocarbon gas are supplied to the surface of the resin (6), and the surface of the resin (6) is hydrophilized. ... Meidensha Corporation

Vacuum circuit breaker

A vacuum circuit breaker includes a ground tank, first and second vacuum interrupters, a link mechanism for opening and closing the vacuum interrupters and a link mechanism case housing the link mechanism and supported by an insulating support tube. An insulating operation rod for operating the link mechanism is provided through the insulating support tube and a side portion of the ground tank. ... Meidensha Corporation

Dynamometer control device and method for estimating moment of inertia using same

To provide a dynamometer control device whereby excitation control can be performed so that a resonance phenomenon does not occur even when the moment of inertia of an engine is unknown. A dynamometer control device 6 is provided with an excitation signal generating unit 61 for generating a randomly or periodically fluctuating excitation signal, a speed controller 62 for generating an input signal to a dynamometer whereby a dynamo rotation speed matches a predetermined dynamo command rotation speed, a shaft torque compensator 64 for generating an input signal to the dynamometer whereby vibration of a shaft for connecting an engine and the dynamometer is suppressed using the detection value of a shaft torque sensor, and an adder 65 for generating a torque electric current command signal by adding the input signals generated by the speed controller 62 and the shaft torque compensator 64 to the excitation signal.. ... Meidensha Corporation

Field emission device and reforming treatment method

In a vacuum chamber (1), an emitter (3) and a target (7) are opposed to each other. A guard electrode (5) is disposed around an outer circumference of an electron generating portion (31) of the emitter (3). ... Meidensha Corporation

Control device for dynamometer system

The purpose of the present invention is to provide a control device for a dynamometer system, with which, by a simple method, an unloaded state can be reproduced highly accurately when a test piece is started. A dynamo control device 6 is provided with: an integral control input computation unit 611 for computing the integral value of axle torque deviation, and multiplying the sum thereof and a correction value by an integral gain to compute an integral control input; a correction value computation unit 612 for multiplying an inertia compensation quantity jcmp by the dynamo rotation frequency to compute a correction value; a non-integral control input computation unit 613 for designating, as a non-integral control input, the output of a prescribed transmission function ge0(s) having axle torque deviation as input; and a totaling unit 614 for totaling the integral control input and the non-integral control input in order to generate a torque current command signal to the dynamometer. ... Meidensha Corporation

Method for manufacturing electrode material and electrode material

What is disclosed is an electrode material including a sintered body containing a heat resistant element and cr and being infiltrated with a highly conductive material. A powder mixture of a heat resistant element powder and a cr powder is subjected to a provisional sintering in advance, thereby causing solid phase diffusion of the heat resistant element and cr. ... Meidensha Corporation

09/07/17 / #20170254725

Torque command generation device

The purpose of the present invention is to provide a torque command generation device for generating a motor-generated-torque command that makes it possible to maximize excitation force while ensuring necessary acceleration, and the like, within a limited motor torque range. A torque command generation device (6) is provided with: a maximum torque calculation unit (633) for calculating, according to a motor speed, a maximum torque value for a motor-generated-torque-command signal value; a dc component limiter (635) for calculating a dc signal value; a surplus amplitude calculation unit (637) for calculating a surplus amplitude by subtracting the maximum torque value from the sum of the dc component value calculated by the dc component limiter (635) and an externally input excitation amplitude; a sine-wave transmitter (639) for generating a sine wave having an amplitude obtained by subtracting the surplus amplitude from a base amplitude; and a summing unit (640) for calculating the motor-generated-torque-command signal value by adding the dc component value and the sine wave value.. ... Meidensha Corporation

08/17/17 / #20170237361

Insulating structure for power conversion device

Due to increase of demand for safety of device, reinforcement of insulation of exposed conductive parts is required also in power conversion device. Relay unit having optical transmission unit, signal processing unit and power generating unit is provided between control circuit unit and gate drive circuit unit which form control device for an inverter. ... Meidensha Corporation

08/17/17 / #20170232520

Process for producing electrode material, and electrode material

A process for producing an electrode material by infiltrating a highly conductive metal such as cu into a porous object containing heat-resistant elements. Before an infiltration step in which the highly conductive metal is infiltrated, a hip treatment is given to a powder containing the heat-resistant elements (or to a molded object obtained by molding a powder containing the heat-resistant elements). ... Meidensha Corporation

08/17/17 / #20170232400

Ceramic filter

A ceramic filter 20 has a porous support formed from particles containing a metal oxide as a main component and a membrane layer coated on a surface of the porous support and formed from particles containing the same kind of metal oxide as that of the porous support, wherein the particles forming the membrane layer are loaded with a different kind of metal oxide from that of the particles forming the membrane layer.. . ... Meidensha Corporation

07/27/17 / #20170214348

Method for autonomous operation of electricity-generating device

When it is not possible for a power generation device to operate coupled to an electric power system, an autonomous operation of connection and disconnection of a load of the power generation device is performed along an efficiency-characteristics curve within a speed range from a rated speed to a maximum speed in the efficiency-characteristics curve of an energy source. During the autonomous operation, an aperture command is outputted to an inlet valve of a water turbine and a first converter is operated in a converter mode when an operation preparation command is outputted by a control unit, a second converter is operated in an inverter mode when a voltage is established by of a dc linkage unit, and the load is connected when the operation preparation is completed.. ... Meidensha Corporation

07/20/17 / #20170208712

Flat cable for actuators

Considering a case that a device requiring electric power is arranged in a room where an actuator such as an automatic driving device is disposed, a power cable, a control signal cable, and an electric power cable for the actuator are arranged in parallel and extended in one direction, and thereby a flat part is formed. In a cable side connector provided at both ends of the flat part, a connection terminal of the control signal cable is held at a position where a connection terminal of the electric power cable is put between the connection terminal and a connection terminal of the power cable.. ... Meidensha Corporation

05/11/17 / #20170133920

Resonant load power conversion device and time division operation method for resonant load power conversion device

. . A resonant load power conversion apparatus is provided to lower a switching frequency of each switching device and to reduce the number of main circuit conductors. The conversion apparatus includes a single-phase inverter having a dc input side (vdc) connected with a dc voltage source and an output side (vout) connected with a resonant load and outputting a rectangular wave voltage with a resonance frequency. ... Meidensha Corporation

04/20/17 / #20170108550

Monitoring device for a surge arrester and monitoring system comprising a monitoring device

The invention relates to a monitoring device for a surge arrester comprising a means 6 for detecting a total leakage current that is flowing between the surge arrester 3 and earth, a field sensor 9 for detecting an electrical field in the vicinity of the surge arrester 3 and a communication unit 13 for the contact less transmission of data to an external device 2, the communication unit 13 being a near-field communication unit for the contact less exchange of data by means of near-field communication (nfc).. . ... Meidensha Corporation

03/09/17 / #20170069438

Method for producing electrode material

. . A method for producing an electrode material, provided to involve: (i) a provisional sintering step of sintering a mixed powder containing a powder of a heat resistant element and a powder of cr to obtain a solid solution where the heat resistant element and cr are dissolved; (ii) a pulverizing step of pulverizing the solid solution to obtain a powder; (iii) a main sintering step of sintering a molded body obtained by molding the powder of the solid solution, to produce a sintered body; and (iv) a cu infiltration step of infiltrating the sintered body with cu.. . ... Meidensha Corporation

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009


This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Meidensha Corporation in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Meidensha Corporation with additional patents listed. Browse our Agent directory for other possible listings. Page by