Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7982581 | Digital potentiometer architecture with multiple string arrays allowing for independent calibration in rheostat mode Digital potentiometer architecture is disclosed, composing of an integrated circuit containing multiple string arrays, each having a plurality of switching devices and an array of resistors. The insertion of an additional string array between the input terminals and... | 07/19/2011 |
| 7889048 | Resistor network and variable resistor simulator A variable resistor network has a coarse resistance network and a fine resistance network connected in series with the coarse network. The coarse resistance network comprises a chain of series-connected resistors any one or more of which may be switched out of the s... | 02/15/2011 |
| 7355504 | Electrical devices An electrical device which comprises first and second laminar electrodes and a laminar PTC resistive element sandwiched between them, the device comprising (a) a main portion which comprises a main part of the first electrode, a ma... | 04/08/2008 |
| 7288731 | Switching device A switching device (2) for a multi-step vehicle transmission (4) having one main transmission part (6) and an auxiliary-section transmission part (10) comprising the switching mechanisms (12, 14, 18, 38) for actuating switching ele... | 10/30/2007 |
| 7250844 | Stick lever unit for radio controlled device and radio controlled device equipped with the same A stick lever unit for a radio-controlled device that is capable of easily changing the type of stick lever holding mechanism by a user is provided. The stick lever unit includes a fixing member to which a variable resistor is attached, a rotational member equipped ... | 07/31/2007 |
| 7233069 | Interconnection substrate and fabrication method thereof An interconnection substrate includes: an interconnection layer region where at least a first conductor layer and a second conductor layer are vertically stacked in that order on a substrate, with the first conductor layer and second conductor layer containing condu... | 06/19/2007 |
| 7167075 | Dual design resistor for high voltage conditioning and transmission lines A dual resistor for eliminating the requirement for two different value resistors. The dual resistor includes a conditioning resistor at a high resistance value and a run resistor at a low resistance value. The run resistor can travel inside the conditioning resisto... | 01/23/2007 |
| 7079005 | Mechanically buffered contact wiper An electric device contains a medium interposed between first and second electric elements to provide electric continuity between the first element and a defined reference point of the second element throughout a defined range of sliding travel of one of the element... | 07/18/2006 |
| 7029604 | Conductive resin composition and electrode substrate using the same and method of manufacturing the electrode substrate A method of the invention manufactures a conductive resin composition having powdered silver and a reinforcing agent of the Mohs hardness 3.5 to 4.5 contained in binder resin, and forms an electrode substrate by use of the conductive resin composition. Thereby, hard... | 04/18/2006 |
| 7012423 | Rotation angle detector A rotation angle detector for improving the detection accuracy of a rotation angle has a movable shaft, a bearing portion for pivotably bearing against the movable shaft, a detection portion for detecting a rotation angle of the movable shaft, and a supporting porti... | 03/14/2006 |
| 6937132 | High-voltage variable resistor A high-voltage variable resistor includes an insulating-resin front case, and an insulating-resin rear case fitted to the front case. The front case further includes a circuit board having a circuit pattern including a resistive element, and a slider that is slidabl... | 08/30/2005 |
| 6891465 | Variable-resistance element A variable-resistance element exhibiting high wear resistance and superior microlinearity includes a resistor constituted from a first resistive layer containing a first reinforcing material and a second resistive layer containing conductive carbon black and a secon... | 05/10/2005 |
| 6815039 | Resistance element for potentiometric devices, and method of manufacture Conductive plastic resistance element having particles of conductive material embedded therein and projecting therefrom for reducing variations in contact resistance in a potentiometric device in which the element is employed. The element is made by processing carbo... | 11/09/2004 |
| 6794984 | Sliding-type electric component having carbon fiber contact The present invention provides a sliding contact member including a contact element, wherein the contact element includes a bundle of carbon fibers formed by bundling a plurality of carbon fibers and lubricant contained among the plurality of carbon fibers of the bu... | 09/21/2004 |
| 6747544 | Electric switch An electric switch (1) having digital switch position detection includes a switching device (2) for contacting switch contacts associated with individual code tracks (A, B, C), different switch contacts being contacted by the switching device in differ... | 06/08/2004 |
| 6737990 | Key input apparatus interface A compact key input apparatus interface includes a resistive element and a number of key contacts on the resistive element. The keys of a key input apparatus are disposed to provide electrical contact between a voltage source and the resistive element at a particula... | 05/18/2004 |
| 6639508 | Electrical switch device and process for manufacturing same An electrical switch device includes a thick film switch element having a low temperature co-fired dielectric substrate, electrical conductor tracks embedded in the substrate and having a surface substantially flush with the substrate surface, and wiper c... | 10/28/2003 |
| 6587029 | High-voltage variable resistor A high-voltage variable resistor includes a circuit section contained in an insulating casing, a snap-in terminal inserted in a terminal base portion of the casing and connected to an output portion of the circuit section, and an output connecting electro... | 07/01/2003 |
| 6538555 | Throttle valve having potentiometer with supporting plate The invention relates to a throttle valve comprising a potentiometer with a supporting plate (1) the supporting plate (1) to be mounted on a substrate wherein the supporting plate (1) has an upper side (18) on which the resistance tracks (3, 4), wiper tra... | 03/25/2003 |
| 6392529 | Carbon fiber contactor having an elastomer to reduce hysteresis An electrical contactor or wiper that uses an elastomer near the tip to reduce flexing and improve electrical signal accuracy. The contactor includes an elongated beam having a U-shaped end. Several carbon fibers form a bundle attached to the beam. The fi... | 05/21/2002 |
| 6292090 | Position detecting switch A switch circuit including voltage dividing elements for dividing a reference voltage inputted from an external source through a reference voltage input terminal, a fixed contact having metallic patterns formed on a board, and a movable contact coming in ... | 09/18/2001 |
| 6130600 | Variable resistor A variable resistor includes a circuit board having a conductive layer and a plurality of impedance layers arranged under the conductive layer, a slide having a metal contact plate movably mounted over the conductive layer and the impedance layers, wherei... | 10/10/2000 |
| 6078249 | Screw-type potentiometer drive with a travel reset An assembly (24) for monitoring the travel of a device includes a potentiometer (26) having a slide bar (32). The potentiometer generates a resistance value according to a position of the slide bar which is coupled to the door through a rotatable member (... | 06/20/2000 |
| 6054917 | Rotatively driven type electric component with slider actuated by screw drive The present invention relates to a rotatively driven type electric component wherein a slider is moved linearly by rotation of a screw. The rotatively driven type electric component with housings, a drive shaft held by the housings and provided with a scr... | 04/25/2000 |
| 5986537 | High-voltage variable resistor A high-voltage variable resistor includes an insulating substrate having a surface on which there is formed a resistor including a variable resistor portion and a plurality of terminal electrodes including an output terminal electrode. A rotation shaft is... | 11/16/1999 |
| 5963124 | Cover mounted position sensor A position sensor for sensing the position of an attached device. There is a housing having terminals and a cover attached to the housing. Resistors, conductors and conductive traces are located on the cover and electrically connected to the terminals. A ... | 10/05/1999 |
| 5949325 | Joystick pointing device A curved disc joystick or pad with improved performance, reliability and durability can be used as a cursor pointing device for computers, remote controls, video games, consumer electronics, industrial controllers, automotive and other applications. A con... | 09/07/1999 |
| 5912614 | Variable resister A variable resister includes a housing made of a synthetic resin and having an inner space that opens to an open upper end of the housing, and a substrate made of a synthetic resin mounted on the housing for closing the open upper end of the housing to en... | 06/15/1999 |
| 5912613 | High-voltage resistor unit and high-voltage variable resistor unit A high-voltage resistor unit capable of minimizing a variation in output voltage thereof. The resistor unit includes an output terminal member provided with a contact section connected, by only contacting, to an output electrode formed on a front surface ... | 06/15/1999 |
| 5907273 | Linear positioning indicator Use is made of thermoplastic materials in layered configurations as a thermally stable, rigid but not brittle strip of lengths of six inches to ten feet or more. The layered strip contains layers of conductive fibers in a resin matrix, which, through use ... | 05/25/1999 |
| 5856774 | Holding structure for terminal of variable resistor In an electrical part, a first resilient portion of an internal terminal is inserted into a terminal guide portion, and the internal terminal is inserted into the terminal guide portion such that a contact portion thereof resiliently contacts the inner si... | 01/05/1999 |
| 5838221 | Motor control system and control head A control head for remote actuators on a vehicle heater/air conditioner system comprises variable resistors operated by control knobs to provide variable motor control voltages to the actuators which comprise servo-actuators or a pulse width modulated blo... | 11/17/1998 |
| 5825279 | Slide potentiometer A rail 30, having a long groove 31 on an upper surface thereof, is disposed in a space between an upper surface of cover 28 having an elongated hole 29 and an insulating substrate 21. With this arrangement, water or the like, entering from the upper part ... | 10/20/1998 |
| 5812048 | Linear positioning indicator Use is made of thermoplastic materials in layered configurations as a thermally stable, rigid but not brittle strip of lengths of six inches to ten feet or more. The layered strip contains layers of conductive fibers in a resin matrix, which, through use ... | 09/22/1998 |
| 5770995 | Detector for mask alignment A pair of output terminals for measurement of lateral misalignment are formed on an interlayer insulating film, and a series resistance circuit is formed between the pair of output terminals by connecting plural lower layers exposed to plural windows for ... | 06/23/1998 |
| 5675309 | Curved disc joystick pointing device A low-cost joy stick or pad with improved performance, reliability and durability which can be used as a cursor pointing device for computers, remote controls, video games, consumer electronics, industrial controllers, automotive and other applications. A... | 10/07/1997 |
| 5673015 | Sliding type variable resistor The present invention provides a sliding type variable resistor in which the shaking of a knob portion is prevented, and in which the slider is able to slide smoothly. A sliding type variable resistor is provided having a structure comprising a resin subs... | 09/30/1997 |
| 5666100 | Linear potentiometer with a floating pin joint A floating pin joint is provided for coupling a linear potentiometer to a machine for measuring relative movement between first and second component parts of the machine. The potentiometer has an elongated housing securable to the first component part and... | 09/09/1997 |
| 5517171 | High-voltage electronic component A high-voltage electronic component including a terminal connection structure capable of connecting a lead wire to a terminal fitment without soldering. An insulating substrate having a resistance element for a variable resistor formed on a front surface ... | 05/14/1996 |
| 5475358 | High-voltage variable resistor unit A high-voltage variable resistor unit capable of simply and positively connecting, to a holder of a high-voltage fixed resistor used as a bleeder resistor, a wire-like terminal inserted into an electrically conductive rubber terminal provided on a side of... | 12/12/1995 |
