Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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 |
| 6810577 | Method of manufacturing a dielectric waveguide The present invention provides a method of efficiently manufacturing a dielectric waveguide with high reliability and precision. In the method, a resist material is formed on the outer surface of a green compact provided with a removal inhibiting layer, and predeter... | 11/02/2004 |
| 6756865 | Resonator device, filter, duplexer, and communication apparatus using the same A multi-mode resonator device can be reduced in size even while increasing the number of resonators while including either a semi-coaxial resonator or a coaxial resonator. Coupling between a TEM mode as a resonance mode of the semi-coaxial resonator and a TM mode as... | 06/29/2004 |
| 6743316 | Multilayered ceramic substrate and production method therefor In a ceramic green-sheet stack to be fired to form a multilayered ceramic substrate having a cavity, a shrinkage-reducing pad is formed along a boundary interface between first ceramic green sheets having an opening for defining a cavity, and second ceramic green sh... | 06/01/2004 |
| 6697605 | High-frequency circuit apparatus and communication apparatus Provided is a high-frequency circuit apparatus and a communication apparatus whose consumption current is small and the inserting loss is small. One embodiment provides a high-frequency circuit apparatus constructed by an antenna duplexer of a frequency v... | 02/24/2004 |
| 6680527 | Monolithic semiconducting ceramic electronic component A monolithic semiconducting ceramic electronic component includes barium titanate-based semiconducting ceramic layers and internal electrode layers alternately deposited, and external electrodes electrically connected to the internal electrode layers. The... | 01/20/2004 |
| 6661315 | Resonator, filter, oscillator, duplexer, and communication apparatus A resonator, a filter, an oscillator, a duplexer, and a communication apparatus employing these devices have improved efficiency characteristics in confining an electromagnetic field in an opening of an electrode, suppressed current concentration, and min... | 12/09/2003 |
| 6657514 | Dielectric transmission line attenuator, dielectric transmission line terminator, and wireless communication device A dielectric transmission line attenuator or terminator, which is used with a dielectric transmission line provided with two conductive plates substantially parallel to each other and a dielectric strip held between the two conductive plates. A resistor f... | 12/02/2003 |
| 6654227 | Ceramic electronic parts and method for manufacturing the same A ceramic electronic part includes a ceramic assemblage containing laminated plural ceramic sheets, plural inner electrodes formed between the ceramic sheets and containing Ni as a major component, and outer electrodes electrically connected to the inner ... | 11/25/2003 |
| 6649553 | Dielectric ceramic composition, dielectric ceramic compact and electronic component including the same A dielectric ceramic composition for radiofrequency applications has a crystalline primary component having a perovskite crystal structure, and an auxiliary component. The crystalline primary component is represented by the formula: wherein Me is at least... | 11/18/2003 |
| 6627120 | Conductive paste and laminated ceramic electronic component In order to achieve miniaturization and an increase in the capacitance of a monolithic ceramic capacitor, a conductive paste suitable for forming an internal conductor film is provided, the layer thickness of the internal conductor film being decreased wi... | 09/30/2003 |
| 6624727 | Resonator, filter, duplexer, and communication device A resonator includes a hollow dielectric element having a hole therein, a helical line unit including a plurality of helical lines formed in the hole, and a ground electrode formed on an outer surface of the dielectric element.... | 09/23/2003 |
| 6596382 | Multilayered board and method for fabricating the same A multilayered board includes a laminate including a plurality of glass-containing insulating layers, each glass-containing insulating layer being provided with an electrode on the surface thereof. The glass-containing insulating layer is formed by firing... | 07/22/2003 |
| 6535089 | High-frequency circuit device and communication apparatus using the same A high-frequency circuit device solves problems caused by a spurious mode reflection generated at a part where propagation of a spurious mode wave is prevented, with the result that propagation of the spurious mode wave such as a parallel plate mode wave ... | 03/18/2003 |
| 6532816 | Vibrating gyroscope and electronic apparatus incorporating the same A vibrating gyroscope includes a substrate, a vibrator and supporting members fixed in proximity to the node points on both principal planes of said vibrator. The supporting members include first portions extending in a direction parallel to the substrate... | 03/18/2003 |
| 6531257 | Photosensitive copper paste and method of forming copper pattern using the same Provided is a photosensitive copper paste permitting the formation of a fine and thick copper pattern having high adhesion to a substrate, and having excellent preservation stability without causing gelation, and a method of forming a copper pattern, a ci... | 03/11/2003 |
| 6529101 | Multilayered LC filter A multi-layered LC filter includes a plurality of insulating sheets stacked on each other and inductor via holes that are connected to each other in a stacking direction of insulating sheets, forming two columnar inductors. First ends of the inductors are... | 03/04/2003 |
| 6512585 | Laser scanning position detecting device A scanning position detecting device which allows detection of the scanning position of a laser beam scanning at high speed is disclosed. A position sensitive detector is provided to detect the scanning position of a laser beam when the laser beam passes ... | 01/28/2003 |
| 6509810 | Filter, duplexer, and communication device A filter and a duplexer in which power loss due to the edge effect in resonator lines, is very effectively suppressed, which allow more reduction in overall size to be achieved, and which have desired filter characteristics, and a communication device inc... | 01/21/2003 |
| 6498547 | Anisotropically electroconductive adhesive and a ladder filter using the same An anisotropically electroconductive adhesive comprising a thermosetting insulating adhesive mixed with electroconductive particles, the thermosetting insulating adhesive having an intrinsic acoustic impedance of about 1.4 MPa.multidot.s/m or less is prov... | 12/24/2002 |
| 6487065 | Multilayer ceramic capacitor and manufacturing method thereof A multilayer ceramic capacitor comprises a sintered ceramic compact including primary crystalline phases and secondary phases. The primary crystalline phases mainly contain CaTiO3 and CaZrO3. The secondary phases mainly contain Si an... | 11/26/2002 |
| 6349870 | Method of manufacturing electronic component A method of manufacturing an electronic component includes bonding an electronic component via a bump to electrically and mechanically connect the electronic component to a base member and bonding a cap member to the base member in such a manner that the ... | 02/26/2002 |
| 6242995 | Bead inductor and method of manufacturing same A method of manufacturing a bead inductor includes the steps of forming a molded body of a resin material or a rubber material including a powdery magnetic substance with a conductor coil defined by a wound, coated metallic wire; cutting both ends of the ... | 06/05/2001 |
| 6165379 | Ferrite sintered compact and electronic part comprising the same A ferrite sintered compact, as an element of an electronic part for forming an internal conductor containing silver, includes a ferrite containing at least two components selected from the group consisting of nickel, zinc and copper, and a glass having a ... | 12/26/2000 |
| 6139979 | Lead-free solder and soldered article A lead-free solder contains nickel, silver and tin. A soldered article is a workpiece containing a transition metal conductor capable of readily diffusing into melted tin; and the lead-free solder; wherein the lead-free solder is applied and bonded to the... | 10/31/2000 |
| 6008981 | Monolithic ceramic capacitor A dielectric ceramic composition including: a barium titanate containing principal component represented by the formula: (1--ଲ-γ){BaO}m .multidot.TiO2 +M2 O3 +ଲRe2 O3 | 12/28/1999 |
| 5989726 | Multi-layer ceramic electronic part A highly reliable multi-layer ceramic electronic part in which is compact, in which cracks tend not to occur in the ceramic element even in cases where it is handled in bulk by a chip mounting device. A plurality of electrodes (internal electrodes) are di... | 11/23/1999 |
| 5936389 | Terminating resistance circuit A terminating resistance circuit is used for a bus line in which a power source line, signal lines and ground lines are connected between computer equipment via terminators, respectively. An input terminal of a regulator is connected to the power source l... | 08/10/1999 |
| 5767811 | Chip antenna A chip antenna comprising a substrate comprising either of a dielectric material or a magnetic material, at least one conductor formed on at least one side of the surface and the inside of the substrate, and at least two feeding terminals provided on the ... | 06/16/1998 |
| 5699028 | Surface acoustic-wave resonator filter having shifted resonant frequencies A surface acoustic-wave resonator filter having improved group delay time characteristics. The filter comprises three energy-confined acoustic-wave resonator filter sections formed on a piezoelectric substrate. The second resonator filter section is posit... | 12/16/1997 |
| 5663505 | Pressure sensor having a piezoelectric vibrator with concencentric circular electrodes A pressure sensor includes a vibrator having a diaphragm valve for detecting pressure. First and second circular piezoelectric bodies are located on a respective one of the two principal planes of the diaphragm valve. On one principal plane of the first p... | 09/02/1997 |
| 5548256 | Saw filter having electrodes for relaxation of electric field concentration An SAW filter includes an SAW substrate and input and output IDTs which are arranged on the SAW substrate at a prescribed distance from each other. The IDTs are provided on outer end portions along the surface wave propagation direction with electric fiel... | 08/20/1996 |
| 5548179 | Chip-type piezoelectric resonance component In a chip-type piezoelectric resonance component, a piezo-resonator (3) is fixed onto a base substrate (2) and a cap member (4) is fixed to the base substrate (2) to enclose the piezo-resonator (3). The piezo-resonator (3) is provided with upper and lower... | 08/20/1996 |
| 5536293 | Base metal composition for external electrode of multilayer electronic component A base metal composition for forming an external electrode of a multilayer electronic component contains 70 to 85 percent by weight of Cu, 2 to 10 percent by weight of glass frit and 10 to 28 percent by weight of an organic vehicle. The glass frit contain... | 07/16/1996 |
| 5432136 | Dielectric ceramic compositions The present invention is directed to a dielectric ceramic composition composed of, 97.5 to 99.95 wt. % of main component represented by, {100-(a+b+c+d)} (Ba100-x Pbx) TiO3 +aZnO+bBi2 O3 +cNb2 | 07/11/1995 |
| 5368951 | Solid oxide fuel cell A solid oxide fuel cell which has a solid electrolyte having an air electrode and a fuel electrode on its upper and lower surfaces respectively. The fuel electrode is made of a mixture of nickel, zirconium oxide and chromium oxide.... | 11/29/1994 |
| 4969197 | Piezoelectric speaker A piezoelectric speaker in which a diaphragm containing a piezoelectric driver is fixed on a frame through an elastic supporting member. The diaphragm is an assembly of two resin foam plates facing each other. Each resin foam plate has a recess and a proj... | 11/06/1990 |
| 4770950 | Thin film electroluminescent device A thin film luminescent device comprises a luminescent layer which consists essentially of a luminous matrix compound of an alkaline earth metal sulfide, a luminescent center element of the rare earth elements embedded in the matrix compound, and additive... | 09/13/1988 |
| 4742264 | Piezoelectric sound generator A piezoelectric sound generator which comprises a monolithic sintered body obtained by laminating a plurality of ceramic green sheets formed alternately with a plurality of electrodes and cofiring the same. Electrical connections between the electrodes in... | 05/03/1988 |
| 4556929 | Multi-layer ceramic capacitor A multi-layer ceramic capacitor includes a rectangular ceramic body with terminal electrodes provided on its opposite ends. A set of electrode, including a plurality of electrode layers, extends from one terminal electrode into the ceramic body. A similar... | 12/03/1985 |
| 4384264 | Surface acoustic wave device A surface acoustic wave device comprises a substrate and a set of interdigital electrodes disposed thereon and spaced apart. One interdigital electrode is divided along the propagating direction of the surface acoustic wave into a plurality of portion int... | 05/17/1983 |
