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| Number | Title | Issue Date |
| 8183754 | Alumina-based sintered body for spark plug and method of manufacturing the same, and spark plug and method of manufacturing the same An alumina-based sintered body for a spark plug having enhanced mechanical strength and a method of manufacturing the same, as well as a spark plug having the alumina-based sintered body for a spark plug and a method of manufacturing the same. ... | 05/22/2012 |
| 8164243 | Spark plug for internal combustion engine A spark plug having a center electrode; an insulator having an axial hole extending in the direction of an axis; a metallic shell; a ground electrode extending from a front end portion of the metallic shell; a center-electrode-side noble metal chip joined to a dista... | 04/24/2012 |
| 8141532 | Spark plug A peripheral wall extending portion is formed in such a manner that a front end side of a cylindrical hole of a metal shell projects forward in an axis O direction, and the peripheral wall extending portion comprising: a projecting portion formed into a projecting s... | 03/27/2012 |
| 8138660 | Plasma jet spark plug A plasma jet spark plug comprising: a center electrode; an insulator having an axial bore extending in an axial direction, and retaining the center electrode within the axial bore; a metallic shell... | 03/20/2012 |
| 8106572 | Spark plug and process for producing the spark plug A spark plug in which an ignition portion of a ground electrode formed through joining of a noble metal chip to the ground electrode has high durability, and a method of manufacturing the spark plug. ... | 01/31/2012 |
| 8097137 | Gas sensor element and gas sensor To provide a gas sensor element having a base body whose durability is unlikely to deteriorate during the use and exhibiting excellent endurance and responsiveness. [Means for Solution] A gas sensor element 2 comprising: a closed-bottomed cylindrical b... | 01/17/2012 |
| 8092269 | Method of manufacturing spark plug A decrease in yield and degradation of productivity can be avoided when a spark plug having an insulator with low mechanical strength is manufactured. In a second process, a terminal electrode 15 is inserted to a predetermined position in a state where an ins... | 01/10/2012 |
| 8072125 | Spark plug for use in an internal-combustion engine with a bilayer ground electrode A spark plug 100 comprised of a metal shell 1, an insulator 2, a center electrode 3 and a ground electrode 4. A rear-end face of the ground electrode 4 is welded to a front-end face of the metal shell 1, and a bent po... | 12/06/2011 |
| 8067882 | Sealing member for spark plug A sealing member for a cylindrical spark plug having a metal shell with threaded ridges thereon to be screwed into a mounting hole of a combustion engine, the sealing member comprised of a piece of annular sheet material made of austenitic stainless steel or ferriti... | 11/29/2011 |
| 7975665 | Spark plug and internal combustion engine provided with the same A spark plug comprising a cylindrical portion which projects into a combustion chamber from an inner wall face of an engine head when the spark plug is fixed to the engine head, wherein the cylindrical portion has one or more ventilating portion comprised of a throu... | 07/12/2011 |
| 7927475 | Gas sensor A gas sensor comprising: the gas sensor element defined; the cylindrical metal shell defined herein; and the protector defined herein, wherein the protector defined herein has a double structure including the cylindrical inner cover portion and the outer cover porti... | 04/19/2011 |
| 7914353 | Spark plug and method for manufacturing the same A method for manufacturing a spark plug and a spark plug manufactured by the method in which a gasket used for securing the air-tightness when mounting the spark plug on an internal-combustion engine is prevented from falling out from the metal shell with a simple s... | 03/29/2011 |
| 7891870 | Temperature sensor element and method of manufacturing the same A temperature sensor element 10 has a reduced thermal conduction path from a measurement object to a sensitive end portion 22 of a thermocouple 21 and a high-dense insulating ceramic base body 20. Since the temperature sensor element 1... | 02/22/2011 |
| 7839065 | Plasma jet spark plug and manufacturing method therefor A plasma jet spark plug and a manufacturing method therefor are disclosed. In a state in which a noble-metal chip having a flange-like outwardly projecting portion is disposed in a communication section of a ground electrode, an electrode base metal of the ground el... | 11/23/2010 |
| 7781949 | Spark plug A spark plug including a ground electrode which has an excellent heat sinking ability. The ground electrode includes a core material therein. Heat received from a combustion chamber during a drive of an internal-combustion engine can be conducted to the core materia... | 08/24/2010 |
| 7772752 | Plasma-jet spark plug A plasma-jet spark plug comprising an insulator and a ground electrode which are disposed apart from each other in an axial direction (O) to prevent a damage of the insulator. The spark plug is capable of reducing an energy loss of the ejected plasma by defining a d... | 08/10/2010 |
| 7635826 | Glow plug having built-in sensor A glow plug includes a heater member; heater power lead wires which extend rearward along an axis and whose conductors electrically communicate with one and of a heater conductor for supply of power; a sensor, portion for detecting the combustion pressure of an inte... | 12/22/2009 |
| 7522887 | Wireless signal switching circuit and wireless communication apparatus A wireless signal switching circuit for switching a plurality of wireless transmitter signals or a plurality of wireless receiver signals with low loss in a dual mode compatible mobile phone (cellular phone) or other mobile wireless communication apparatus having fo... | 04/21/2009 |
| 7475589 | Knock sensor A knock sensor 1 for attachment to an internal combustion engine. The knock sensor 1 includes a cap 41a and a support member 11. At least a part of the top surface of the support member 11 is covered by cap 41a | 01/13/2009 |
| 7215069 | Spark plug A spark plug having a packing interposed between an insulating porcelain and a metallic shell, wherein Young's modulus G of the material forming the metallic shell 50 and Young's modulus F of the material forming the packing 80 satisfies the relation o... | 05/08/2007 |
| 7201043 | Combustion pressure sensor and glow plug including the same To provide a combustion pressure sensor capable of reducing noises generated by the force in a rocking direction by making uniform the stress exerted onto the piezoelectric element; and a glow plug having the same. ... | 04/10/2007 |
| 7183497 | Multilayer wiring board A multilayer wiring board (11) is provided which includes a core substrate (12) including a plurality of through-holes (15). The through-holes (15) include through-hole conductors (17) on the inner walls of corresponding penetratio... | 02/27/2007 |
| 6881930 | Glow plug and method of manufacturing the same A glow plug includes a ceramic heater having a resistance-heating element embedded at its end portion. In order to supply electricity to the resistance-heating element, first and second heater terminals are exposed on the surface of the ceramic heater. First and sec... | 04/19/2005 |
| 6849358 | Lithium ion battery A multi-cell Li-ion or Li-ion polymer battery, comprised of a plurality of generally planar cell sections, each having at least one flat, metallic current collector tab extending therefrom. A plurality of the current collector tabs are aligned in spaced-apart relati... | 02/01/2005 |
| 6844109 | Li-ion and/or Li-ion polymer battery with edge protectors A Li-ion and/or Li-ion polymer battery, comprised of a plurality of battery cells, each battery cell comprised of at least one cathode section, an anode section and at least one separator layer disposed between the anode section and the at least one cathode section.... | 01/18/2005 |
| 6844525 | Glow plug and glow-plug-mounting structure In a glow plug configured such that a metallic, tubular member having a heater fixedly provided therein is joined to a metallic shell, an external-thread portion is formed on the outer circumferential surface of the metallic shell so as to allow the glow plug to be ... | 01/18/2005 |
| 6790557 | Li-ion and/or Li-ion polymer battery with shielded leads A battery section for a Li-ion and/or Li-ion polymer cell, comprised of: a planar metal mesh layer having a body portion and a coplanar tab portion defining a battery lead extending from one edge of the mesh layer; electrode film laminated to opposite ... | 09/14/2004 |
| 6705806 | Cutting tool coated with diamond A cutting tool coated with diamond in which diamond is coated as a film on a substrate having a step 15 to 500 μm in height in the vicinity of a cutting edge on the rake surface and/or the flank surface. Only the diamond film in the vicinity of the cutting edge can... | 03/16/2004 |
| 6562511 | Battery separator for Li-Ion and/or Li-Ion polymer battery A separator for a Li-ion polymer battery comprised of a plurality of separator layers that are laminated together. The plurality of separator layers including a first layer formed of a first separator material, and a second layer formed of a second separa... | 05/13/2003 |
| 6551745 | Thin lithium battery with slurry cathode A cathode slurry for use in a lithium battery, comprised of: about 60% to about 70% by weight manganese dioxide; about 5% to about 10% by weight carbon; and about 25% to about 35% by weight of an electrolyte, said electrolyte comprised of: about 10% to about 40% by... | 04/22/2003 |
| 6550309 | Gas sensor with multiple mechanical and thermal shock cushion layers A gas sensor 1 includes an outer cylinder 18, a metallic shell 3, and a sensor element 2. The metallic shell 3 is disposed inside the outer cylinder 18. The sensor element 2 is disposed in a through-hole 30 formed in the metallic shell 3 and is adapted to... | 04/22/2003 |
| 6544586 | Method for manufacturing gas sensor element A gas sensor element includes a solid electrolyte layer having a plurality of projections formed on its outer surface, an inner electrode formed on the inner surface of the solid electrolyte layer, an outer electrode formed on the outer surface of the sol... | 04/08/2003 |
| 6528929 | Spark plug with iridium-based alloy chip A spark plug includes a chip made of iridium. The distance E between the chip and a copper core of a core rod of the center electrode is not greater than 3.5 mm. The core rod has a diameter D1 of 1.4 mm to 2.6 mm. The ratio of a chip diameter D2 to the co... | 03/04/2003 |
| 6515449 | Battery with lead/nugget protection insert A Li-ion or Li-ion polymer battery, comprised of a battery assembly having a plurality of generally planar cathode sections, each having a flat, metallic cathode current collector tab extending therefrom. A cathode tab weldment joins the cathode current c... | 02/04/2003 |
| 6475674 | Li-ion and/or Li-ion polymer battery with shielded leads A battery section for a Li-ion and/or Li-ion polymer cell, comprised of: a planar metal mesh layer having a body portion and a coplanar tab portion defining a battery lead extending from one edge of the mesh layer; electrode film laminated to opposite surfaces of t... | 11/05/2002 |
| 6414420 | Spark plug and method of manufacturing the same A spark plug according to this invention includes an insulator having a center through-hole formed therein, a center electrode held in the center through-hole, a metallic shell holding the insulator by swaging, and a ground electrode electrically connecte... | 07/02/2002 |
| 6403262 | Li-Ion cell with shielded leads A Li-ion and/or Li-ion polymer cell, comprised of: a first cathode section and a second cathode section, each cathode section having a cathode current collector in contact therewith, the cathode current collector comprised of a sheet of metal mesh having a tab... | 06/11/2002 |
| 6373173 | Spark plug A spark plug according to this invention includes an elongate center electrode, an insulator enclosing the center electrode, a metallic shell having open opposite ends and enclosing the insulator, the metallic shell having a male-threaded portion formed o... | 04/16/2002 |
| 6359532 | Energy trapping type piezoelectric filter with a shielding conductive member on a bottom insulating base plate upper surface An energy trapping type piezoelectric filter comprising a first piezoelectric substrate (1A) and a second piezoelectric substrate (1B) having an identical configuration and arranged in layers with an adhesive sheet or spacer (20A) interposed therebetween ... | 03/19/2002 |
| 6333857 | Printing wiring board, core substrate, and method for fabricating the core substrate A printed wiring board includes a core substrate including a laminated capacitor. The laminated capacitor includes a plurality of composite dielectric layers and a plurality of metal layers stacked alternately. Three types through-hole conductors are prov... | 12/25/2001 |
