483 patents
Page 19 of 25
Utility
Internal Combustion Engine Component and Method of Manufacturing Internal Combustion Engine Component
13 May 20
A spark plug that prevents a decrease in strength of a member to which a mark is attached while ensuring a readability of the mark, and a method of manufacturing the spark plug.
Naoki SADAKA
Filed: 29 Oct 19
Utility
Electrochemical Cell and Electrochemical Stack
13 May 20
An electrochemical cell including a solid electrolyte layer containing ZrO2 containing a first rare earth element; a cathode disposed on one side of the solid electrolyte layer; and an anode disposed on the other side of the solid electrolyte layer.
Keisuke YAMADA, Yoshihiro FUNAHASHI, Katsuya YAMAGIWA
Filed: 16 May 18
Utility
Spark plug
11 May 20
A spark plug includes a tip extending in a first direction and an electrode base metal having an extending portion extending in the first direction and connected to the tip through a fusion zone.
Junji Kimura
Filed: 7 Jul 19
Utility
Spark plug electrode wearing rate estimating method and apparatus
11 May 20
A spark plug electrode wearing rate estimating method for a spark plug in which spark discharge occurs between two electrodes by application of voltage generated by an ignition coil, includes the step of estimating a wearing rate of a first electrode in one spark discharge based on a temperature of the first electrode, and a spark discharge voltage and supply energy from the ignition coil.
Takahiro Karumi
Filed: 22 May 19
Utility
Wiring Board
6 May 20
A wiring board includes: an insulator layer composed mainly of ceramic; a conductor extending through the insulator layer in a thickness direction thereof; and an electrode pad disposed on a first surface of the insulator layer and connected electrically with the conductor, wherein: the electrode pad includes through holes extending through the electrode pad in a thickness direction thereof; and each of the through holes is positioned to avoid overlapping with the conductor in the thickness direction of the insulator layer.
Takakuni NASU, Kengo TANIMORI, Yousuke KONDO, Masahiro KAMEGAI, Kouta KIMATA, Junya MATSURA, Fumio SHIRAKI, Guangzhu JIN
Filed: 26 Sep 19
Utility
Ceramic-metal structure
4 May 20
A ceramic-metal structure in which a metallic body (2) is inserted into or disposed above a through hole (4h) of a ceramic substrate (4) and which includes an annular pad layer (6) disposed around the through hole; an annular ring member (8) joined to the pad layer via a first brazing filler portion (10) and having a coefficient of thermal expansion smaller than that of the metallic body; a second brazing filler portion (12) intervening between the ring member and metallic body; and brazing filler flow prevention layers (7a, 7b) covering an outer surface of the pad layer so as to expose a central region (6c) of the outer surface of the pad layer facing the first brazing filler portion.
Muneyuki Iwata, Yoshiaki Nagaya, Toshikazu Horio, Shigeyuki Yamamoto
Filed: 13 Jul 17
Utility
Method of inspecting spark plug and method of manufacturing spark plug
4 May 20
A plurality of assemblies are prepared, and a predetermined voltage is applied to a center electrode of each of the plurality of assemblies.
Masafumi Okuda
Filed: 23 Jul 19
Utility
Method for manufacturing gas sensor element
27 Apr 20
Disclosed is a manufacturing method of a gas sensor element.
Yuri Saito, Tatsuhiko Muraoka, Masaki Nakagawa
Filed: 6 Mar 18
Utility
Method for producing gas sensor element
27 Apr 20
A method for producing a gas sensor element (10), the gas sensor element including a diffusive porous layer (113) disposed in a measurement chamber (111) and exposed to the outside and a ceramic insulating layer (115) forming sidewalls of the measurement chamber.
Ai Igarashi, Kouji Toida, Akinori Kojima, Akihiro Hara, Hitoshi Furuta
Filed: 7 May 18
Utility
Fuel cell stack and method for manufacturing fuel cell stack
27 Apr 20
A fuel cell stack including a plurality of electricity generation units fastened by means of a plurality of fastening members.
Nobuyuki Hotta, Hideki Ishikawa, Shunta Ohashi, Yasuki Izutsu
Filed: 6 Jun 16
Utility
Method for manufacturing insulator for spark plug
27 Apr 20
A method for manufacturing an insulator for a spark plug includes a molding process of forming a cylindrical molded product having an axial hole that extends in a direction of an axial line, by means of injection molding using a mold that has a columnar cavity therein and a bar-shaped member disposed in the cavity and extending in the direction of the axial line.
Hironori Uegaki, Hirokazu Kurono, Toshitaka Honda, Hiroyuki Hazama
Filed: 22 Sep 15
Utility
Plasma Irradiation Device, Handpiece, and Surgical Operation Device
22 Apr 20
A plasma irradiation device has a gas flow channel and an electric field generation section and is provided in a handpiece.
Shinsuke ITOH, Takaaki YAMADA
Filed: 12 Apr 18
Utility
Surface-coated Cutting Tool
22 Apr 20
Shota NOZAKI, Fumihiro KIKKAWA, Atsushi KOMURA
Filed: 10 May 18
Utility
Sensor control apparatus and sensor control system
20 Apr 20
A sensor control apparatus for a gas sensor which detects a particular gas component contained in a gas under measurement.
Dai Nishijima, Satoshi Teramoto
Filed: 10 Jul 18
Utility
Heating device
20 Apr 20
A heating device includes a holding member having a resistive heating element, a columnar support member joined to the holding member, power receiving electrodes connected to the resistive heating element, and an electrode terminal unit disposed in each of through holes in the columnar support member.
Jun Kurano, Kazutaka Tanaka
Filed: 14 Sep 17
Utility
Electrically conductive oxide sintered compact, member for electrical conduction, gas sensor, piezoelectric element, and method for producing piezoelectric element
20 Apr 20
An electrically conductive oxide sintered compact according to one embodiment of the present invention includes a crystal phase that has a perovskite oxide crystal structure represented by the composition formula: REaCobCucNidOx where RE is a rare-earth element; a+b+c+d=1; and 1.25≤x≤1.75, wherein the values of a, b, c and d respectively satisfy the following conditions: 0.474≤a≤0.512; 0.050≤b≤0.350; 0≤c≤0.250; and 0.050≤d≤0.350.
Hisashi Kozuka, Yasuyuki Okimura, Kazushige Ohbayashi
Filed: 6 Dec 15
Utility
Particulate detection system
13 Apr 20
A particulate detection system detects the amount of particulates contained in filtered exhaust gas which has passed through a filter and is discharged to the outside of the vehicle.
Takeshi Sugiyama
Filed: 28 Aug 18
Utility
Spark plug
13 Apr 20
A spark plug includes a metallic shell having a cylindrical trunk portion with a male screw formed on its outer circumferential surface and a seat portion located adjacent to the rear end of the trunk portion and projecting radially outward.
Ryoki Yagi
Filed: 18 Jun 19
Utility
Spark Plug
8 Apr 20
A spark plug according to one embodiment of the present invention includes an insulator formed of an alumina-based sintered body, wherein the insulator contains 90 wt % or more of an aluminum component in terms of oxide, and wherein crystal grains of the insulator has an average grain size of 1.5 mm or smaller and a grain size standard deviation of 1.2 μm or smaller.
Yutaka Yokoyama, Nobuyoshi Araki, Kuniharu Tanaka, Haruki Yoshida, Hironori Uegaki, Toshiki Kon, Yusuke Nomura
Filed: 17 Sep 19
Utility
Wiring Board
8 Apr 20
A wiring board has a metal-made base having a front surface and a back surface, an insulating frame body bonded to the front surface of the base through a bonding layer made of bonding material, a seating provided in an area that is located at an inner side with respect to the frame body on the front surface of the base, a mounting area where a component is supposed to be mounted on the front surface of the base, and a groove formed on the front surface of the base.
Yosuke IMOTO, Shinichiro HANEISHI, Kenji SUZUKI, Norihiko KAWAI, Naoki KITO
Filed: 25 Sep 19