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| Number | Title | Issue Date |
| 7994895 | Heat sink for integrated circuit devices A resistor with heat sink is provided. The heat sink includes a conductive path having metal or other thermal conductor having a high thermal conductivity. To avoid shorting the electrical resistor to ground with the thermal conductor, a thin layer of high thermal c... | 08/09/2011 |
| 7907045 | Hoisting machine A hoisting machine having a load hoisting motor and a speed reduction mechanism and driving the load hoisting motor with an inverter 12 incorporated in the hoisting machine main body is provided with a heat dissipation means that dissipates heat generated fro... | 03/15/2011 |
| 7427911 | Electrical device having a heat generating resistive element The invention provides an electrical device having improved insulation and reduced partial discharge. The electrical device comprises an electrically conductive resistive element provided on a heat transfer medium for transferring heat from the element. The heat tra... | 09/23/2008 |
| 7310036 | Heat sink for integrated circuit devices A resistor with heat sink is provided. The heat sink includes a conductive path having metal or other thermal conductor having a high thermal conductivity. To avoid shorting the electrical resistor to ground with the thermal conductor, a thin layer of high thermal c... | 12/18/2007 |
| 7277289 | Resistor for controlling a fan motor rotating speed for use in an air conditioner Provided is a resistor for controlling a fan motor rotating speed for use in an air conditioner. The resistor comprises a base body, a radiator attached to a top portion of the base body, a printed resistor circuit board covered with insulating sheets and received w... | 10/02/2007 |
| 7277006 | Chip resistor Chip resistor includes the rectangular first substrate made of ceramics and having surfaces, the rectangular second substrate made of ceramics and having surfaces, and a joint layer interposed between the surfaces, and electrodes are formed on two opposing sides of ... | 10/02/2007 |
| 7102484 | High power resistor having an improved operating temperature range A high power resistor includes a resistance element with first and second leads extending out from the opposite ends thereof. A heat sink of dielectric material is in heat conducting relation to the resistance element. The heat conducting relationship of the resista... | 09/05/2006 |
| 7042232 | Cable and substrate compensating custom resistor A compensating resistor includes a substrate with a first termination at one end and a second termination at the other end. A frontside resistor is on the frontside of the substrate and extends between the first termination and the second termination. A backside res... | 05/09/2006 |
| 7042328 | High power resistor having an improved operating temperature range A high power resistor includes a resistance element with first and second leads extending out from the opposite ends thereof. A heat sink of dielectric material is in heat conducting relation to the resistance element. The heat conducting relationship of the resista... | 05/09/2006 |
| 6995978 | Housing with active external cooling and at least one electronic component with heat-dissipating capacity An actively externally cooled housing with at least one electronic component having heat-dissipating capacity, has a ventilation inlet located outside the housing, the ventilation inlet generating an airflow that is guided through a lateral flow channel, the flow ch... | 02/07/2006 |
| 6925704 | Method for making high power resistor having improved operating temperature range A high power resistor includes a resistance element with first and second leads extending out from the opposite ends thereof. A heat sink of dielectric material is in heat conducting relation to the resistance element. The heat conducting relationship of the resista... | 08/09/2005 |
| 6882266 | Ball grid array resistor network having a ground plane A ball grid array resistor network that has a ground plane to reduce noise and improve signal integrity. The ball grid array resistor network includes a substrate having a first and a second surface and vias that extending through the substrate between the first and... | 04/19/2005 |
| 6747543 | Resistor for driving motor for air conditioner blower A resistor for driving a motor for an air conditioner blower is provided, in which internal resistance bodies are stacked over one after another between insulation plates in the resistor, to accordingly reduce the volume of the entire of the resistor is reduced, and... | 06/08/2004 |
| 6528860 | Resistor with resistance alloy plate having roughened interface surface A high-accuracy current detecting resistor is provided whose resistance does not change greatly according to temperature change and which has an excellent dielectric strength. In a resistor in which an electrical resistance alloy plate and a radiating met... | 03/04/2003 |
| 5945905 | High power resistor A high power resistor includes a substrate of an insulating material having opposed first and second surfaces, and a strip of a resistance material on the first surface of the substrate. The resistance strip has side edges which are spaced from the side e... | 08/31/1999 |
| 5841340 | Solderless RF power film resistors and terminations Solderless RF power film resistor and termination assemblies which include a flat film resistor or termination pressed by a nonmetallic clamping plate into thermal contact with a base plate functioning as a heat sink. A substrate such as a BeO ceramic sub... | 11/24/1998 |
| 5786745 | Electronic package and method A package (10) has outermost surfaces (12, 13, 14, 16) that form a polygon shape. The body (11) of the package (10) has axial symmetry about an axis (21). A lead (22) exits the package along the axis (21).... | 07/28/1998 |
| 5739743 | Asymmetric resistor terminal A chip resistor includes a substantially rectangular substrate of an insulating material having opposed substantially flat top and bottom surfaces and edges extending between the top and bottom surfaces. A layer of a resistance material is on the top surf... | 04/14/1998 |
| 5665261 | Motor vehicle electric heating device having angled off metal heating plates arranged to mutually abut one another at opposite ends An electric heating device includes a plurality of heating elements which are assembled to form a block. Such a heating element is formed from two metal plates, with the interposition of PTC elements. In order to increase the heat transfer, the metal plat... | 09/09/1997 |
| 5621378 | Heatsink-mountable power resistor having improved heat-transfer interface with the heatsink A power resistor having much improved heat dissipation ability to an underlying heatsink because a step or protuberance is provided that cooperates with the mounting bolt or screw to largely nullify the effects of molding-caused camber or curvature.... | 04/15/1997 |
| 5581227 | Hybrid circuit having ceramic strip to increase loading capacity A hybrid circuit unit having a film resistor on a circuit carrier and a ceramic stripe having an area of at least approximately the same size as the film resistor is secured in a highly thermally conductive way to at least one side of the plate-shaped cir... | 12/03/1996 |
| 5563570 | Resistor device for controlling a rotational speed of a motor The present invention relates to a resistor device for controlling a rotational speed of a motor which has no directional property and provides a convenient setting. A resistance unit is positioned which includes at least four connecting points connected ... | 10/08/1996 |
| 5550527 | Resistor device for controlling a rotational speed of a motor A resistor device for controlling a rotational speed of a resistance unit and an open-circuit means. A receiving recess is provided to any one side surface of a heat sink vertically affixed to a top surface plate of a housing. A resistance unit, which is ... | 08/27/1996 |
| 5481241 | Film-type heat sink-mounted power resistor combination having only a thin encapsulant, and having an enlarged internal heat sink A low-cost heat sink-mounted power film resistor having a high power rating for its footprint size, and not incorporating any housing. The resistor is bolted or otherwise secured tightly to an external heat sink in high heat-conduction relationship, the e... | 01/02/1996 |
| 5436609 | Electrical device An electrical device in which a conductive terminal is physically and electrically attached directly or indirectly to a face of a laminar PTC resistive element. The terminal comprises a laminar portion and a non-laminar shaped portion which lies within a ... | 07/25/1995 |
| 5355281 | Electrical device having a bonded ceramic-copper heat transfer medium The present invention relates to an electrical device such as a resistor or silicon controlled rectifier that is provided with an improved heat transfer medium for transferring heat from the device to an adjacent structure such as a mounting panel. The im... | 10/11/1994 |
| 5321382 | Thermal type flow rate sensor A thermal type flow rate sensor comprising a sensor chip having a rectangular shape. The sensor chip is supported between supporting pins through ribbon-like leads connected to opposite ends of the sensor chip. The ribbon-like leads serve to correctly loc... | 06/14/1994 |
| 5304977 | Film-type power resistor combination with anchored exposed substrate/heatsink The film-type electrical power resistor includes a flat ceramic chip on the upper surface of which is screen-printed a resistive film. Terminals (leads) are mechanically and electrically connected to the upper chip surface, the terminals being such that t... | 04/19/1994 |
| 5291174 | Ceramic substrate blower motor resistor array An improved blower motor speed control resistor array in which the resistor elements are defined by multiple optimally sized patches of resistive ink deposited onto opposite sides of a thin flat ceramic substrate. The array comprises three resistive patch... | 03/01/1994 |
| 5268665 | Resistor device for blower motor A resistor device for blower motor comprising one plate of PTC element having two side surfaces and a plurality of electrodes disposed on at least one of the two side surfaces. A plurality of different resistance values can be obtained from the one plate ... | 12/07/1993 |
| 5254968 | Electrically conductive plastic speed control resistor for an automotive blower motor A blower motor speed control resistor array in which the resistor elements contain an electrically conductive plastic material which melts to limit the blower motor current in the event of an extreme temperature condition. The conductive plastic is insert... | 10/19/1993 |
| 5243683 | Laminar streamflow-guided hair dryer with finned PTC heating means A hair dryer includes a plurality of elongated positive-temperature-coefficient (PTC) semiconductor heating units disposed in transverse side-by-side spaced relation in a linear array in a central air flow passage of an elongated tubular duct connected to... | 09/07/1993 |
| 5229741 | Automotive resistor unit having mounting clip The resistor unit comprises resistors connected to electrical terminals secured to an insulating plate to which first and second legs of a spring sheet metal mounting clip are secured for insertion through an opening in a supporting wall. The legs are ben... | 07/20/1993 |
| 5228460 | Low mass radial array heater for electrical smoking article A heating element to provide heat to a tobacco flavor medium, for use in an electrical smoking article, by converting electrical energy to heat through the use of a material with electrically resistive properties is provided. The material is arranged in a... | 07/20/1993 |
| 5185568 | RF test load and method for internal use thereof The invention describes an internal test load and method for forming an internal test load which is adapted to absorb energy from a power source such as an RF transmitter, transceiver, or amplifier. The test load is positioned internally within a housing,... | 02/09/1993 |
| 5179366 | End terminated high power chip resistor assembly An end terminated high power chip resistor-printed circuit board assembly (9) suitable for use in applications requiring miniature surface mount resistors capable of high power dissipation. An end terminated high power chip resistor (8) is constructed by ... | 01/12/1993 |
| 5159310 | Resistor grid heat dissipating assembly A heat dissipating resistor grid has a rectangular or annular frame including side members carrying blocks or panels of insulating material having cavities in their inner surfaces. The resistor element is a zigzag strip formed from individual flat lengths... | 10/27/1992 |
| 5119063 | Variable power resistor A variable power resistor includes a heat sink having a front face and a back face with an electrically insulating, thermally conductive ceramic coating bonded directly onto the front face such that the ceramic coating is in direct thermal contact with th... | 06/02/1992 |
| 4935717 | Resistor device for controlling a blower A blower control resistor device includes a plurality of resistors leading to resistor terminals, and a plurality of connecting terminals joined with the resistor terminals by thermal fuses. The joint portions between the resistor terminals and the connec... | 06/19/1990 |
| 4931626 | PIC thermistor device having heat radiation fins with adjustable temperature regulating guide plates A PTC thermistor device includes a heat generator containing a PTC thermistor unit, and heat radiators thermally coupled thereto. Each of heat radiators includes a plate, one main surface of which is adhered onto the heat generator, and a number of fins i... | 06/05/1990 |
