| Patent Number |
Title Of Patent |
Date Issued |
| D568243 |
AC-DC converter |
May 6, 2008 |
|
| D567174 |
AC-DC converter |
April 22, 2008 |
|
| D567173 |
AC-DC converter |
April 22, 2008 |
|
| D567172 |
AC-DC converter |
April 22, 2008 |
|
| D453142 |
Circuit block for power supply |
January 29, 2002 |
|
| 7453189 |
Piezoelectric transformer |
November 18, 2008 |
| There is provided with a piezoelectric transformer which does not require a marking operation, is easy to manufacture, and is capable of reducing costs. After the piezoelectric transformer is manufactured, a shape of secondary side electrodes on the outer end is made so that a polarizati |
| 7423888 |
Voltage conversion circuit and switching power supply device |
September 9, 2008 |
| A voltage conversion circuit and a switching power supply device achieving both a good response and a low loss of a power supply voltage, wherein a main voltage conversion portion (circuit block) for conversion an AC voltage to a DC voltage, an auxiliary voltage conversion portion for th |
| 7423362 |
Piezoelectric transformer drive method and drive circuit |
September 9, 2008 |
| A driving circuit is composed of a discontinuous rectangle wave oscillator and a lowpass filter. A discontinuous rectangle wave used herein is composed of voltages Vp, 0 and -Vp. Assuming one cycle is T, a discontinuous rectangle wave has such a configuration that a potential from a |
| 7375609 |
Multilayer laminated circuit board |
May 20, 2008 |
| A multi-layer laminated circuit board 10A of the present invention is formed by laminating together a multi-layer transformer 10, a multi-layer part sheet 30 formed with a multi-layer part, and a wiring sheet 50 formed with a circuit pattern. The multi-layer transformer 10 is incorpo |
| 7375608 |
Solid electrolytic capacitor and manufacturing method thereof |
May 20, 2008 |
| The multi-layer transformer 10 of the present invention comprises a composite sheet 14a comprising a center magnetic pattern 11a and peripheral magnetic pattern 12a that are formed at the center and periphery respectively, and a dielectric pattern 13a of a nonmagnetic body that is fo |
| 7352106 |
Piezoelectric transformer driving apparatus |
April 1, 2008 |
| The present invention provides a piezoelectric transformer driving apparatus which drives a load balanced to the ground, which makes an insulating component, such as a current transformer or a photocoupler, unnecessary, and which can detect a load current. For this reason, the presen |
| 7350686 |
Method for supplying solder |
April 1, 2008 |
| Obtained are fine-pitched pad electrodes and also solder bumps with a large amount of solder and a less difference in the amount. First, in an inert liquid in a liquid tank, a substrate is positioned with a surface facing up. Subsequently, the inert liquid containing solder fine part |
| 7272024 |
Synchronized rectification circuit and switching power supply device |
September 18, 2007 |
| A synchronized rectification circuit and a switching power supply device having little power loss with respect to a wide range of input voltages and having a high efficiency, comprising first and second switch elements, first and second capacitors connected with each other capable to |
| 7245514 |
Synchronous rectification circuit |
July 17, 2007 |
| A synchronous rectification circuit of a switching power supply device where circuit elements such as rectification switch elements are protected when an abnormality occurs in an output of a transformer, wherein a (fault) detecting circuit detects an abnormality of a trigger signal t |
| 7167069 |
Coil bobbin and transformer |
January 23, 2007 |
| A coil bobbin for preventing coil lead wires to terminal pins from being loosened, and a transformer employing such coil bobbin. The coil bobbin made of a thermosetting resin is provided with a secondary side terminal base including a first surface to which lead wires of secondary coil |
| 7113412 |
Drive circuit and power supply apparatus |
September 26, 2006 |
| In charging a gate of a NMOS transistor Q1, the charging speed is adjustable by varying a resistor R1. When an inputted pulse signal VIN reverses to a negative voltage, a diode D2 turns off. Then, current flows along a discharging loop formed by the gate capacitor, the resistor R1, t |
| 6992407 |
Precision machining stage equipment |
January 31, 2006 |
| A movable table for supporting a work piece is allowed to move on the same plane in arbitrary directions through a table holding mechanism. Also, a feed within the same plane is supplied to the movable table by the electromagnetic driving means. Further, the movable table is stopped by |
| 6926610 |
Position indication device, and information storage medium |
August 9, 2005 |
| The objective is to prevent erroneous operation of an optical sensor while removing restrictions on the degree of freedom of design. In a handgun-shaped controller comprising a lens for focusing light that is incident on a muzzle and an optical sensor 18 for detecting the thus-focuse |
| 6761301 |
Soldering machine |
July 13, 2004 |
| A soldering machine using lead-free solders is provided which can uniformly heat a printed circuit board and electronic parts to be mounted thereon, and which can solder the electronic parts without thermally damaging them. A porous member having a number of holes formed therein is dispo |
| 6696908 |
Coil bobbin |
February 24, 2004 |
| To provide a coil bobbin for a transformer in which no through hole is formed in both sides of an upper flange to thereby prevent upsizing, and no long arm apt to splinter is formed on a terminal board, and the terminal board can be readily mounted to a flange. In the coil bobbin in |
| 6677935 |
Position pointing device, program, and pointed position detecting method |
January 13, 2004 |
| An objective is to provide a position pointing device, a program and a method for detecting the position pointing device which relates to a device pointing a position on a display screen and which can discriminate a scan mode of a display device and obtain information of pointed position |
| 6518869 |
Power supply transformer for telephone |
February 11, 2003 |
| A power supply transformer for telephone to be incorporated in an AC adapter as a power supply for a telephone. A bobbin used in a power supply transformer for a telephone is configured by taking insulation as well as an insulation distance into consideration and is partitioned into thre |
| 6507261 |
Coil bobbin for current transformer |
January 14, 2003 |
| A coil bobbin for a current transformer is provided which requires no adhesive and no eyelets, as well as enables easy fixing of a primary coil to the coil bobbin without an increase in cost. The coil bobbin includes a configuration in which a coil bobbin 1 is formed, at an outer surface |
| 6412681 |
Soldering machine |
July 2, 2002 |
| A soldering machine using lead-free solders is provided which can uniformly heat a printed circuit board and electronic parts to be mounted thereon, and which can solder the electronic parts without thermally damaging them. A porous member having a number of holes formed therein is dispo |
| 6301127 |
Circuit block for power supply |
October 9, 2001 |
| In the case where a power supply circuit assembly having a small transformer and various electronic components mounted on a mounting substrate is housed in an insulating case, and the case is filled with a resin, the occurrence of cracks at soldering parts situated around the roots o |
| 6162067 |
Coil-bobbin for AC adapter |
December 19, 2000 |
| A coil bobbin for an AC adapter provides two flanges to be formed at both ends thereof, having coils wound between these flanges, and an incorporated core. At a lower portion of one flange, a unit to fit a rectifying circuit configured by electronic components is provided. A mounting |
| 6008712 |
Small sized transformer with cover |
December 28, 1999 |
| A transformer with a modified cover and terminal portion of the coil bobbin to increase the creepage path between a terminal and a core, thus enhancing insulation performance. The invention discloses a cover on a coil bobbin, and includes a groove for increasing a creepage path which is |
| 5726536 |
Method of driving a cold cathode tube using a ceramic transformer |
March 10, 1998 |
| A cold cathode tube is used for a back light illuminating a liquid crystal with a light from the back. A ceramic transformer is used instead of a conventional wound transformer for a power source to light this cold cathode tube to eliminate various problems caused by transformers. The |
| 5396211 |
Miniature transformer having compressed laminations |
March 7, 1995 |
| A very small and thin transformer to be used as incorporated in an electronic device for the civil life. In this transformer, a coil is wound on a coil bobbin in which core sheets are incorporated as laminated. This laminated core is provided with an insulating cover for insulation. |
| 5157368 |
Thin type transformer |
October 20, 1992 |
| A thin type transformer has a coil bobbin with a coil wound on a flat and hollow barrel part of the bobbin, and a core mounted to the bobbin with a central leg portion of the core passed through the barrel part. Further, a pair of core cover members adapted to be mutually fittable while |
| 4773583 |
Soldering device |
September 27, 1988 |
| A soldering device wherein the article to be soldered is moved into contact with molten solder which flows in the direction counter to the direction of movement of said article is characterized by including a nozzle for flowing said molten solder and a flow path of a channel shape provid |
