483 patents
Page 8 of 25
Utility
Spark Plug
18 Nov 21
A spark plug includes a metal shell and a cap member joined to the metal shell to define a pre-chamber.
Kenji BAN, Tatsuya GOZAWA
Filed: 23 Jun 20
Utility
Surface-coated cutting tool
16 Nov 21
Shota Nozaki, Fumihiro Kikkawa, Atsushi Komura
Filed: 11 May 18
Utility
Air-fuel ratio control system and air-fuel ratio control method
16 Nov 21
An air-fuel ratio control system (1) including an air-fuel ratio control section (3) for controlling the air-fuel ratio λ of an air-fuel mixture, an exhaust gas purifier (4); an air-fuel ratio sensor (5) whose output changes sharply when λ in the exhaust gas changes between rich and lean sides about a stoichiometric air-fuel ratio; a heater (6); and a temperature control section (7).
Tetsuya Ito, Yuki Saito
Filed: 30 Sep 20
Utility
Gas Sensor
11 Nov 21
A gas sensor is configured to inhibit wear of a metal member contacting with a member containing ceramic.
Masana OKAI, Takehiro OBA, Masaaki ANDO
Filed: 16 Mar 20
Utility
Light Wavelength Conversion Member and Light-emitting Device
21 Oct 21
In one aspect of the present disclosure, there is provided an optical wavelength conversion member including a polycrystalline ceramic sintered body containing, as main components, Al2O3 crystal grains and crystal grains represented by formula X3Al5O12:Ce.
Shohei TAKAKU, Yusuke KATSU, Tsuneyuki ITO, Toshiaki KURAHASHI, Hideto YAMADA
Filed: 17 Jul 19
Utility
Component for semiconductor production device, and production method of component for semiconductor production device
12 Oct 21
A semiconductor production device component includes a first ceramic member including an AlN-based material, a second ceramic member including an AlN-based material, and a joint layer disposed between the first ceramic member and the second ceramic member so as to join the first ceramic member and the second ceramic member to each other.
Kohei Mitsuya, Hideo Tange, Motoki Hotta, Takamichi Ogawa
Filed: 13 Jul 17
Utility
Gas sensor
12 Oct 21
Disclosed is a gas sensor for detecting a measurement target gas in a measurement gas atmosphere, including first and second sensor elements respectively installed in first and second inner spaces of first and second installation parts.
Yusuke Matsukura, Shoji Kitanoya, Masaya Watanabe, Daisuke Ichikawa, Masahiro Yamashita
Filed: 31 Jul 18
Utility
Spark plug that has an insulator less likely to be damaged
12 Oct 21
An insulator for a spark plug including a first portion; a second portion located on the rear side of the first portion, an outer diameter F at a front end of the second portion being smaller than an outer diameter of the first portion; a third portion located on the front side of the first portion, an outer diameter D at a rear end of the third portion being smaller than the outer diameter of the first portion and the outer diameter F at the front end of the second portion; a first slope portion connecting the first portion and the second portion; and a second slope portion connecting the first portion and the third portion.
Hiroki Shimada, Haruki Yoshida, Naoya Harata
Filed: 23 Jun 20
Utility
Spark plug inspection method and spark plug manufacturing method
12 Oct 21
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: 19 Dec 19
Utility
Cutting tool holder and cutting tool
5 Oct 21
A cutting tool includes a holder having an upper jaw and a lower jaw, and an insert clamped between the jaws.
Naoki Andoh
Filed: 11 May 18
Utility
Particulate detection apparatus
5 Oct 21
A particulate detection apparatus for controlling a particulate sensor which detects the amount of particulates discharged from a filter for collecting particulates contained in exhaust gas.
Takeshi Sugiyama, Yoshinori Hibino
Filed: 8 Jul 19
Utility
Spark plug having a plurality of ground electrodes
21 Sep 21
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: 18 Jan 19
Utility
Pressure sensor having a heat receiver including a first portion and a second portion
7 Sep 21
A pressure sensor includes: a housing having a tubular shape, and including a front end including an opening; a diaphragm that is disposed to close the opening, and is structured to deform depending on a pressure exerted on a front side of the diaphragm, and includes a hole extending rearwardly from a front end face of the diaphragm; a sensor element structured to output a signal varying depending on an amount of the deformation of the diaphragm; and a heat receiver including a first portion and a second portion.
Daisuke Kasahara, Hirotaka Saito
Filed: 25 Oct 18
Utility
Method of Manufacturing Holding Device, Method of Manufacturing Structure for Holding Device, and Holding Device
2 Sep 21
A holding device that holds an object on a first surface of a first portion of a plate-shaped member includes a heater pattern formed on a ceramic green sheet and a cover layer covering the heater pattern.
Hideki UEMATSU, Junji SUZUKI, Kazuki IZUMIHARA, Yuji KAWAMURA
Filed: 27 Mar 20
Utility
Waveguide Slot Antenna
26 Aug 21
A waveguide slot antenna is configured by a waveguide, formed by a dielectric substrate, a first conductive layer formed at a lower surface of the dielectric substrate, a second conductive layer formed at an upper surface of the dielectric substrate and provided with one or a plurality of slots, and a pair of side wall parts electrically connecting the first and second conductive layers and extending in a first direction, being provided with a power feeding part .
Hiroyuki TAKAHASHI, Satoshi HIRANO, Naoko MORI, Ikuro AOKI, Takuya ADACHI
Filed: 1 Nov 19
Utility
Complex Oxide Ceramic, Method for Producing Same, and Article
26 Aug 21
A complex oxide ceramic according to an embodiment is a complex oxide ceramic including a rare earth element and at least one element selected from among molybdenum, tungsten, and vanadium.
Akira NAKAJIMA, Takumi MATSUMOTO, Sachiko MATSUSHITA, Toshihiro ISOBE, Kayano SUNADA
Filed: 16 Jul 19
Utility
Substrate holding member
24 Aug 21
A substrate holding member includes a base, and a plurality of convex parts formed at an upper surface of the base and configured to hold a substrate at top surfaces thereof.
Norio Onodera, Takashi Teshima
Filed: 20 Jun 18
Utility
Spark Plug
19 Aug 21
An insulator for a spark plug including a first portion; a second portion located on the rear side of the first portion, an outer diameter F at a front end of the second portion being smaller than an outer diameter of the first portion; a third portion located on the front side of the first portion, an outer diameter D at a rear end of the third portion being smaller than the outer diameter of the first portion and the outer diameter F at the front end of the second portion; a first slope portion connecting the first portion and the second portion; and a second slope portion connecting the first portion and the third portion.
Hiroki SHIMADA, Haruki YOSHIDA, Naoya HARATA
Filed: 23 Jun 20
Utility
Discharge control apparatus and method
17 Aug 21
A discharge control apparatus for controlling a flyback power supply circuit which includes a transformer having a primary coil and a secondary coil and performing voltage conversion, and a driver for controlling energization of the primary coil.
Yuji Matsumoto, Kazunari Kokubo
Filed: 24 Mar 20
Utility
Ceramic heater and manufacturing method for same
17 Aug 21
A ceramic heater according to one aspect of the present invention has a cylindrical ceramic heater and an annular metal flange fitted around the ceramic heater.
Shotaro Nakamura, Yusuke Makino, Noriyuki Ito
Filed: 29 Oct 15