Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8063732 | Electrical resistor structure This electrical resistor structure which includes a frame (2) for receiving elements which form an electrical resistor (3) in the form of a serpentine resistive element, the folded ends of the branches of which are associated with elements (8, 9... | 11/22/2011 |
| 7378621 | Molybdenum silicide type element The present invention relates to an electrical resistance element of the molybdenum silicide type that includes two terminals (1, 2) for the supply of electric current and at least one leg (3) which extends between the terminals and which includes a gl... | 05/27/2008 |
| 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 |
| 7332694 | Heating resistances and heaters A heating resistance 1 comprises a shaped body of a band made of a conductive material obtained by bending the band in a shape of a wave. The heating resistance 1 is fixed to a substrate made of an insulating material to obtain a heater. Alternatively,... | 02/19/2008 |
| 7230517 | System and method for using plasma to adjust the resistance of thin film resistors A system and method is disclosed for using plasma to adjust the resistance of a thin film resistor. In one advantageous embodiment of the invention, the resistance of a thin film resistor is increased to cause the thin film resistor to have a desired higher value of... | 06/12/2007 |
| 7164103 | Electrical heating resistance element An electrical resistance heating element having a glow zone and two power supply terminals. The glow zone of the element is tubular. A tubular union is provided between each of the power supply terminals and a respective end of the glow zone, wherein the inner diame... | 01/16/2007 |
| 7152312 | Method for transmitting current through a substrate A method for transmitting high-frequency current through a substrate is provided. The method comprises receiving the high-frequency current at a via passing through at least one conductive plane disposed within the substrate and coupled to the via with one or more t... | 12/26/2006 |
| 7053749 | Metal plate resistor A metal plate resistor includes a resistive body comprising a metal plate, and at least a pair of electrodes joined respectively to opposite ends of the resistive body, the electrodes being made of a highly conductive metal conductor. The resistive body has a main s... | 05/30/2006 |
| 7053751 | Resistance hybrid, and voltage detection and constant voltage generating circuits incorporating such resistance hybrid A resistance hybrid is disclosed including m+1 unit resistors connected in series, to further be connected in series between two resistance elements, one Rbottom and the other Rtop. Each unit resistor SBn includes an error correction resistance element R1dn a... | 05/30/2006 |
| 7049929 | Resistor process Circuit panels are provided with resistors in vias extending between the top and bottom surfaces of the panels. The resistors may be formed by depositing a composite in each via, as by depositing a dispersion of a conductive material and a dielectric or by depositin... | 05/23/2006 |
| 7034653 | Semiconductor resistor A semiconductor resistor comprises a resistor body formed on a semiconductor substrate and first and second conductive terminals electrically connected to the resistor body at opposite ends thereof. The semiconductor resistor further includes at least first and seco... | 04/25/2006 |
| 7034260 | Method of making a heating element of molybdenum silicide type A method of producing a heating element made from molybdenum silicide and alloys thereof, and which includes aluminum oxide on its surface. A material is produced that contains substantially Mo(Si1-xAlx)2 and Al2O3 | 04/25/2006 |
| 7009487 | Fabrication of nano-scale temperature sensors and heaters The method for the fabrication of nano scale temperature sensors and nano scale heaters using focused ion beam (FIB) techniques. The process used to deposit metal nano strips to form a sensor is ion beam assisted chemical vapor deposition (CVD). The FIB Ga+ | 03/07/2006 |
| 6960636 | Thermosetting resin compositions containing maleimide and/or vinyl compounds In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. ... | 11/01/2005 |
| 6940038 | Laser trimming of resistors Improved systems and methods for laser trimming resistors printed on a substrate layer are provided. An exemplary embodiment measures a resistance value for each annular resistor and sorts the annular resistors into one or more bins based on the measured resistance ... | 09/06/2005 |
| 6919544 | Method to improve the life span of a heating element of a molybdenium disilicide at lower temperatures A method of increasing the length of life of heating elements that consist essentially of molybdenum-silicide, and alloys thereof, when the elements are operated at a low temperature, such as at a temperature ranging from 400-600° C. The heating element material co... | 07/19/2005 |
| 6916856 | Thermosetting resin compositions containing maleimide and/or vinyl compounds In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. ... | 07/12/2005 |
| 6139130 | Substrate and liquid jet recording head with particular electrode and resistor structures A substrate for a recording head includes a heat generating resistor for generating thermal energy to eject liquid, and a pair of opposed electrodes which are electrically connected to the heat generating resistor to supply electric signal to that heat ge... | 10/31/2000 |
| 6108212 | Surface-mount device package having an integral passive component The surface-mount device package comprises a pad located on a face of the surface-mount device, a solder bump bonded to the pad, and a terminal spaced radially apart from the pad. A terminal surrounds the pad in at least one common plane that bisects the ... | 08/22/2000 |
| 6041164 | Expansion and mounting apparatus for infrared radiant energy source Infrared wire element configurations allow for expansion during use in a thermoplastic welding environment. A mounting apparatus for the infrared wire expansion configuration provides support.... | 03/21/2000 |
| 5999080 | Frequency dependent resistive element A frequency dependent resistor in which the length of the current path across the resistor varies as a function of the frequency of the electrical signals being passed therethrough. The resistor uses the principal known as skin effect to direct relatively... | 12/07/1999 |
| 5841183 | Chip resistor having insulating body with a continuous resistance layer and semiconductor device A chip resistor includes a resistor body, a wire-bonding electrode, and a soldering electrode respectively disposed on a first major surface and a second major surface of the resistor. Two electrodes are electrically connected to each other only through t... | 11/24/1998 |
| 5469131 | Hybrid integrated circuit device A resistive body of a hybrid integrated circuit has a resistance pattern on a resin film. Bonding pads permit connection of current through the resistance pattern. The resistance pattern may form part of a detecting bridge for overcurrent detection. One e... | 11/21/1995 |
| 5446260 | Method of trimming an electronic circuit An electronic probe circuit having ac and dc amplifiers and an input compensation subcircuit is enclosed within a trim housing that replicates the electrical effect of the probe housing. The circuit is laser trimmed through ports in the trim housing. The ... | 08/29/1995 |
| 5379017 | Square chip resistor A square chip resistor in which, when the protective glass layers are fired, a powder of an inorganic material such as alumina or the like having a greater thermal expansion coefficient than glass is mixed into glass paste to thereby adjust the thermal ex... | 01/03/1995 |
| 5347258 | Annular resistor coupled with printed circuit board through-hole A resistor and method of forming the resistor as an annular resistor body between a conductive pad surrounding a through-hole in the PCB and a surrounding conductive layer, the annular resistor body being formed from a conductive material having a selecte... | 09/13/1994 |
| 5339067 | Integrated voltage divider and circuit employing an integrated voltage divider An apparatus and method is provided for dividing a voltage with a resistor voltage divider and for employing the voltage divider in an integrated circuit. The resistor voltage divider utilizes inaccessible compensation taps that are placed between nonline... | 08/16/1994 |
| 5334968 | Chip network-type resistor array A network-type resistor array in which a plurality of resistors are successively arranged, in which electrode portions of the resistors are respectively separated by angular electrode-separating notches, so as to prevent the short-circuit between the adja... | 08/02/1994 |
| 5296835 | Variable resistor and neuro device using the variable resistor for weighting A Neuro device is a representation of a nerve cell constituting human brains, eyes and the like, that is, a neuron by an electronic circuit. A circuit of the Neuro device according to the present invention comprises n (n : natural number) input terminals ... | 03/22/1994 |
| 5285049 | Heater for sheet material A heater comprises an insulating substrate which carries a pair of transversely conductor strips, a resistor line extending between the respective conductor strips. The respective conductor strips are connected to the resistor line by electrode teeth spac... | 02/08/1994 |
| 5257005 | Small value precision integrated circuit resistors The effective parasitic end resistance of small-value precision integrated circuit resistors is reduced by providing N resistors connected in parallel and causing at least two of the resistors to share a terminal contact. The resulting integrated circuit ... | 10/26/1993 |
| 5252944 | Film-type electrical resistor combination The film-type electrical power resistor includes a flat chip of aluminum oxide, having a resistive film screen-printed onto one of its sides. Leads are bonded to that side and electrically connected to the film, the leads being such that the chip may be c... | 10/12/1993 |
| 5243318 | Low noise precision resistor A low noise miniature potentiometer utilizes thick film deposits of resistive material which extend adjacent to deposits of conductive material. The conductive region is sliced into a plurality of spaced-apart conductive elements. Electrical paths through... | 09/07/1993 |
| 5233163 | Graphite columnar heating body for semiconductor wafer heating A heating apparatus for use in heating a substrate comprises an electric heater and a power supply part. The electric heater is made up of an approximately columnar body which is made of graphite, and this columnar body has a top with a flat surface part ... | 08/03/1993 |
| 5196915 | Semiconductor device In a semiconductor device such as hybrid IC, thermal heads, etc., a thick film resistor of the semiconductor device contains a boride particle of a metal dispersed in a glass matrix, the particle having a particles size of 0.005 to 0.1 μm. Generation of ... | 03/23/1993 |
| 5192940 | Flat resistance for blower control unit for automobile air conditioner and blower control unit using the same A flat resistance for a blower control unit of an automobile air conditioner, and a blower control unit using the same. The flat resistance includes: a porcelain enameled metallic substrate including a flat head portion, having an edge and one surface, an... | 03/09/1993 |
| 5189595 | Edge shrinkage compensated devices Improved, edge compensated capacitors and a method for making the same are presented. The present invention arranges individual cells of capacitors and uses passive dummy cells so as to achieve a ratio between the length of the exposed perimeters of the c... | 02/23/1993 |
| 5175044 | Sheet-like ceramic substrate for tip parts A sheet-like ceramic substrate for tip parts is provided which can effectively prevent occurrence of a crack thereof. The ceramic substrate comprises a ceramic sheet 7 having first and second primary dividing grooves 2a and 2b and first and second seconda... | 12/29/1992 |
| 5144276 | Rotary potentiometer A potentiometer includes a rotatably mounted lever which acts as a follower member adapted to lie in contact with a moveable finger, the movement of which the lever is to follow, the lever being biassed at all times towards the finger by resilient return ... | 09/01/1992 |
| 5142300 | Recording head for use in half-tone recording In a recording head for use in a recording apparatus for effecting recording on a recording medium, having a plurality of heat generating elements and electrodes for applying energy to the heat generating elements, when the effective width of the heat gen... | 08/25/1992 |
