217 patents
Page 8 of 11
Utility
Spark Plug
9 Sep 20
A spark plug includes: a central electrode extending from a front end side to a rear end side along an axis; an insulator including a front end section formed to be a bottomed tube surrounding a tip of the central electrode; a metal shell shaped to be tubular and structured to support the insulator such that the front end section of the insulator projects to the front end side from a front end section of the metal shell; and a plurality of ground electrodes each of which includes a first end forming a discharge gap with the front end section of the insulator and includes a second end connected to the front end section of the metal shell.
Kei TAKAHASHI, Daisuke KASAHARA
Filed: 17 Jan 19
Utility
Spark Plug
9 Sep 20
A spark plug that can suppress pre-ignition of a combustible air-fuel mixture that has flowed into the sub-chamber.
Tatsuya GOZAWA, Kenji BAN
Filed: 25 Feb 20
Utility
Sensor
26 Aug 20
A sensor including a sensor element, a metallic shell, a terminal fitting, a cylindrical case, lead wires, a connector portion, and a cylindrical heat shield tube.
Kouji OGAWA, Ayaka OTA, Hideya INUKAI, Yasuhiro ISHIGURO
Filed: 21 Jan 20
Utility
Method of Manufacturing Spark Plug
26 Aug 20
A method of manufacturing a spark plug (1) including a disposing step, a contacting step, and a deforming step.
Keijiro KURODA
Filed: 24 Feb 20
Utility
Gas Sensor
5 Aug 20
A gas sensor (1) including a first gas detection element (2) and a second gas detection element (3), a first storage portion (4) having a first internal space (4A), and a first opening (4B) establishing communication between the first internal space (4A) and the outside space thereof exposed to a detection subject atmosphere, a second storage portion (5) having a second internal space (5A) and a second opening (5B) establishing communication between the second internal space (5A) and the outside space, a first membrane (4C) allowing permeation of water vapor and substantially not allowing permeation of a detection target gas, and covering the first opening (4B), and a calculation unit (12) for calculating the concentration of a detection target gas contained in the detection subject atmosphere, based on outputs from the first and second gas detection elements (2, 3), respectively.
Yusuke MATSUKURA, Shoji KITANOYA, Masaya WATANABE, Daisuke ICHIKAWA
Filed: 21 Jan 20
Utility
Electrochemical Reaction Unit and Electrochemical Reaction Cell Stack
29 Jul 20
An electrochemical reaction unit including a unit cell including an electrolyte layer, and a cathode and an anode that face each other in a first direction with the electrolyte layer intervening therebetween; and a felt member containing a ceramic material or a metal and a silica component.
Satoru ISHIDA, Tatsuya ONO
Filed: 30 Jan 18
Utility
Spark Plug Inspection Method and Spark Plug Manufacturing Method
29 Jul 20
A spark plug inspection method and a spark plug manufacturing method that enable evaluation for the position of a ground electrode of a tapered-seat-type spark plug.
Atsutoshi HIDAKA
Filed: 18 Dec 19
Utility
Spark Plug
29 Jul 20
A spark plug including a ground electrode including a base material, a tip having a discharge surface, and a melt portion interposed over an entire area between the tip and the base material and joining the tip to the base material; and a center electrode with a spark gap formed between the center electrode and the discharge surface.
Takashi SEKIZAWA, Tomokatsu KASHIMA, Yasushi SAKAKURA
Filed: 14 Jan 20
Utility
Package
22 Jul 20
A package has a package body formed by stacked insulating layers and having a front surface including a mounting area, a back surface and a side surface; a plurality of hollow portions arranged so as to be adjacent to each other on the front surface of the package body; a plurality of electrode pads individually placed on respective bottom surfaces of the hollow portions; and a partition wall formed by at least one insulating layer that forms the package body and having protruding banks at its both edge sides.
Takayuki MIYAJI
Filed: 16 Dec 19
Utility
Ceramic Sintered Body, Insert, Cutting Tool, and Friction Stir Welding Tool
15 Jul 20
Provided is a ceramic sintered body having high wear resistance and chipping resistance.
Yoshito KOJIMA, Hiroshi YONEKURA, Yusuke KATSU, Takeshi MITSUOKA
Filed: 17 Sep 18
Utility
Ceramic Package
15 Jul 20
Disclosed is a ceramic package for filling with a liquid-containing electrolyte, which includes: a package body defining a recessed cavity open at a front surface of the package body and including first and second ceramic layers stacked together; a plurality of electrode pads disposed on a bottom surface of the recessed cavity; and a plurality of outer connection terminals disposed on a back surface of the package body, wherein each of the electrode pads includes a pad body portion having a polygonal shape in plan view and an interlayer pad portion formed along an interlayer surface between the first and second ceramic layers, wherein the interlayer pad portion has a protruding part protruding outwardly from the pad body portion, and wherein via conductors are formed between the protruding parts of the electrode pads and the outer connection terminals through the first ceramic layer.
Takayuki MIYAJI
Filed: 21 Oct 19
Utility
Cutting Insert
1 Jul 20
A cutting insert has cutting edges having the same shape and provided at respective corners of a polygon in rotational symmetry about the center axis of the polygon, is clamped in an upright position to a holder, and has a negative side rake angle on a rake face of a side cutting edge.
Naoki ANDOH, Takuya HASEGAWA, Takashi FUJIMOTO
Filed: 10 May 18
Utility
Wiring Substrate and Method of Manufacturing the Same
1 Jul 20
A wiring substrate includes a substrate body composed of a plurality of ceramic layers (insulating materials) and having a front surface and a back surface located on opposite sides thereof and having a side surface located between the front surface and the back surface.
Hirotake FUJII, Yutaka KACHI
Filed: 15 Dec 19
Utility
Pressure Sensor
24 Jun 20
A pressure sensor including: a cylindrical casing extending in an axial direction; a diaphragm joined to the distal end side of the casing, extending in a direction intersecting the axis of the casing and deforming in accordance with pressure received on the distal end side; and a sensor section disposed inside the casing and outputting an electric signal corresponding to the deformation of the diaphragm.
Yusuke FUJI, Tatsunori YAMADA, Daiki GOTO, Junki IWABUCHI
Filed: 7 Dec 16
Utility
Wiring Substrate and Method for Producing Wiring Substrate
17 Jun 20
A wiring substrate includes an insulating layer having a front surface and a back surface and at least two wiring parts that are disposed at least on the front surface of the insulating layer and that are insulated from each other.
Yosuke SONOHARA
Filed: 27 May 18
Utility
Cutting Tool Holder and Cutting Tool
10 Jun 20
A cutting tool is configured as follows: a slit is provided rearward of a space between an upper jaw and a lower jaw; an insert held between the two jaws is clamped by screwing a threaded member having a head so as to deform the upper jaw toward the lower jaw; and the threaded member has a hollow shaft structure with its hollow serving as a coolant channel, whereby use of an elastic seal is not required, and coolant is supplied from an internal upper-jaw channel and an internal lower-jaw channel provided in the jaws.
Naoki ANDOH
Filed: 10 May 18
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
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
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