Quotables
"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance. "
Ambose Bierce
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7352272 | Over-current protection device An over-current protection device comprises two metal foils and a PTC material layer laminated between the two metal foils. The PTC material layer essentially comprises a polymer matrix and a conductive filler. The polymer matrix at least comprises a first crystalli... | 04/01/2008 |
| 7326889 | PTC element and production process thereof A method of manufacturing a PTC element comprising a pair of lead terminals bonded together by thermocompression with a matrix held therebetween comprises a matrix preparing step of preparing a matrix constructed by dispersing a conductive filler into a crystalline ... | 02/05/2008 |
| 7286038 | Over-current protection device An over-current protection device comprises two metal foils and a positive temperature coefficient (PTC) material layer laminated between the two metal foils. The PTC material layer includes: (1) a polymer substrate, being 35-60% by volume of the PTC material layer ... | 10/23/2007 |
| 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 |
| RE39660 | Surface mounted four terminal resistor An electrical resistor has a surface mounted four terminal current sensor of a very low resistance value and capable of handling short pulses of high power. It comprises a flat metal late, 1 to 50 mils thick, of an alloy of high electrical resistivity, to which are ... | 05/29/2007 |
| 7215235 | Conductive substrate with resistance layer, resistance board, and resistance circuit board A conductive substrate with a resistance layer comprising a substantially flat high conductivity substrate roughening treated on its surface by a resistance component and provided with a resistance layer by the resistance component so as to enable the interface betw... | 05/08/2007 |
| 7173512 | Thermistor having improved lead structure and secondary battery having the thermistor A thermistor of which resistance is changed depending on temperature and a secondary battery to which the thermistor is attached are disclosed. The thermistor is attached to an object via a lead which is made of different kinds of materials. The lead is configured s... | 02/06/2007 |
| 7161463 | Organic NTC composition, organic NTC device and production method of the same The organic NTC composition according to the present invention is a mixture of a conjugated organic semiconductor polymer and a thermoplastic resin or thermosetting resin. For example, the mixed amount of the thermoplastic resin or thermosetting resin is preferably ... | 01/09/2007 |
| 7154374 | Plated terminations Improved termination features for multilayer electronic components are disclosed. Monolithic components are provided with plated terminations whereby the need for typical thick-film termination stripes is eliminated or greatly simplified. Such termination technology... | 12/26/2006 |
| 7112304 | Robust chemiresistor sensor A chemiresistor sensor probe for detecting target analytes. The probe includes a body having a first control surface and a second control surface recessed within the first. A sensor film comprises numerous conductive particles disposed upon the second surface. The f... | 09/26/2006 |
| 7102483 | Multi-layer over-current protector An over-current protector comprised of multiple over-current protection devices each at various switching temperature and provided with positive temperature coefficient; all devices being stacked and segregated with an reinforced insulation layer and connected in pa... | 09/05/2006 |
| 7098768 | Chip resistor and method for making the same A chip resistor includes: an insulating chip substrate 11 having an upper surface formed with a resistive film 12 and a pair of left and right upper electrodes 13 at two ends thereof; a cover coat 14 covering the resistive film; auxiliary... | 08/29/2006 |
| 7075408 | Laminate-type positive temperature coefficient thermistor A positive temperature coefficient thermistor has a non-heating portion which is not heated when a voltage is applied between first and second internal electrodes. The non-heating portion is provided in the approximate center of the positive temperature coefficient ... | 07/11/2006 |
| 7053748 | Electrical devices A composite circuit protection device includes a laminar insulating member and first and second laminar circuit protection devices. Each of the first and second laminar circuit protection devices includes (1) a first laminar electrode, (2) a second laminar electrode... | 05/30/2006 |
| 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 |
| 7042331 | Fabrication of thick film electrical components A thick-film resistor component may include a thick film component formed between a thick-film resistor and an electrically conductive sheet, wherein a portion of the sheet is selectively removed to form resistor contacts while exposing a portion of the thick-film c... | 05/09/2006 |
| 7030728 | Layout and method to improve mixed-mode resistor performance A resistor layout and method of forming the resistor are described which achieves improved resistor characteristics, such as resistor stability and voltage coefficient of resistance. A resistor is formed from a conducting material such as doped silicon or polysilico... | 04/18/2006 |
| 7026583 | Surface mountable PTC device A surface mountable PTC device includes a PTC layer, first and second electrodes formed on the PTC layer, first and second insulating layers formed respectively on the first and second electrodes, and first and second terminals connected respectively and electricall... | 04/11/2006 |
| 6994562 | Apparatus for multiplex communication In an apparatus for multiplex communication, a bus line constitutes a bus type network for connecting a plurality of terminal communication equipments. A plug-shaped terminating resistance device is detachably provided at an end of the bus line to reduce reflection ... | 02/07/2006 |
| 6987440 | Electrical devices containing conductive polymers An electrical device in which an element composed of a conductive polymer composition is positioned in contact with the first surface of a metal electrode, the first surface having a center line average roughness Ra and a reflection density RD, the produc... | 01/17/2006 |
| 6935554 | Metal/ceramic bonding article and method for producing same There is provided a method for producing a metal/ceramic bonding article, the method including the steps of: arranging a metal plate 12 of an overall-rate solid solution type alloy on a ceramic substrate 10; and heating the metal plate 12 and th... | 08/30/2005 |
| 6876291 | Electrical resistor for measuring preferably high-frequency alternating currents The present invention relates to an electrical resistor (1), in particular for measuring alternating currents of high frequency, comprising connectors (2, 3) for feeding the current to be measured and connectors (4, 5) for tapping the voltage to... | 04/05/2005 |
| 6873244 | Surface mountable laminated thermistor device The present invention discloses a surface mountable laminated thermistor device which utilizes current-used double sided metal foil clad substrate as a base material and a PTC conductive composite that complies with circuit connection design combinations among elect... | 03/29/2005 |
| 6856234 | Chip resistor A chip resistor includes an insulating substrate 2 in the form of a chip having an upper surface and an opposite pair of side surfaces, a resistor film 4 formed on the upper surface of the insulating substrate 2, a pair of upper electrodes 5 ... | 02/15/2005 |
| 6838972 | PTC circuit protection devices An electrical circuit protection device with three supporting substrates, two PTC elements, and first and second end terminations. The first and third substrates have an electrode formed on a first surface thereof. The second substrate has electrodes formed on both ... | 01/04/2005 |
| 6809626 | Over-current protection device An over-current protection device comprises a positive temperature coefficient material layer, an upper electrode foil, a lower electrode foil, a first metal terminal layer, a second metal terminal layer and at least one insulating layer. The upper electrode foil is... | 10/26/2004 |
| 6782604 | Method of manufacturing a chip PTC thermistor Chip PTC thermistors that can easily be inspected the soldered portions after it is mounted on a printed circuit board and that can be used in a flow soldering process, and methods of making same. A chip PTC thermistor of the present invention includes: a first main... | 08/31/2004 |
| 6727798 | Flip chip resistor and its manufacturing method The present invention provides for a flip chip resistor having a substrate having opposite ends, a pair of electrodes formed from a first electrode layer disposed on the opposite ends of the substrate, a resistance layer electrically connecting the pair of electrode... | 04/27/2004 |
| 6724295 | Chip resistor with upper electrode having nonuniform thickness and method of making the resistor A method of making a chip resistor is provided. According to this method, an aggregate board is first prepared which includes a first region and a second region which are spaced from each other via an excess portion. Then, a conductor pattern is formed which extends... | 04/20/2004 |
| 6717506 | Chip-type resistor element A laminated chip-type resistor element having minimal variations in the resistance thereof, includes a plurality of pairs of first and second inner electrodes arranged so that the tips of each of the pairs of first and second inner electrodes are opposed to each oth... | 04/06/2004 |
| 6686827 | Surface mountable laminated circuit protection device and method of making the same A surface mountable laminated circuit protection device comprises a first metal layer including a first unit and a second unit, a first insulating layer disposed on the first metal layer, and a second metal layer disposed on the first insulated layer. The... | 02/03/2004 |
| 6606023 | Electrical devices A composite circuit protection device includes a laminar insulating member and first and second laminar circuit protection devices. Each of the first and second laminar circuit protection devices includes (1) a first laminar electrode, (2) a second lamina... | 08/12/2003 |
| 6593844 | PTC chip thermistor A chip PTC thermistor comprising a conductive polymer having PTC properties, a first outer electrode, a second outer electrode, one or more inner electrodes sandwiched between the conductive polymer, a first electrode electrically directly coupled with th... | 07/15/2003 |
| 6570483 | Electrically resistive PTC devices containing conductive polymers An electrical resistive device in which an element composed of a conductive polymer is positioned in contact with the surface layer of one or more metal electrodes. The metal electrode contains a base layer which includes a first metal, an intermediate me... | 05/27/2003 |
| 6563214 | Electronic component and method of manufacturing the same An electronic component having a substrate on which one or more grooves are formed on its opposing side faces; electrodes formed on the groove and top and bottom faces of the substrate at a portion adjacent to the groove; and a circuit element formed betw... | 05/13/2003 |
| 6531950 | Electrical devices containing conductive polymers An electrical device in which an element composed of a conductive polymer composition is positioned in contact with the first surface of a metal electrode, the first surface having a center line average roughness Ra and a reflection density RD,... | 03/11/2003 |
| 6492629 | Electrical heating devices and resettable fuses A heating element (10) having a first bus wire (12) and a second bus wire (14) and a plurality of flexible heating wires (16) which are connected between the first and second bus wires (12, 14), the flexible heating wires (16) which are connected between ... | 12/10/2002 |
| 6480094 | Surface mountable electrical device A surface mountable electrical devices includes a laminate body having a plurality of stacked PTC sheets, two overlapping metal foil sheets sandwiched between two adjacent ones of the PTC sheets, a conductive first electrode layer, a conductive second ele... | 11/12/2002 |
| 6441717 | PTC thermister chip A chip polymer PTC thermistor for surface mount assembly having a superior long-term connection reliability between side electrode and main and sub electrodes. The thermister comprises; a rectangular parallelepiped conductive polymer(11) having PTC proper... | 08/27/2002 |
| 6411194 | Production method of thin film resistance element formed on printed circuit board, and thin film resistance element employing the method The invention provides a production method capable of forming a thin film resistance element having a thickness and a shape controlled in a high accuracy in a printed circuit board. The production method of a thin film resistance element formed on a print... | 06/25/2002 |
