262 patents
Page 7 of 14
Utility
Spark plug having a plurality of ground electrodes
16 Feb 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
Gas sensor
2 Feb 21
In a circular cross section obtained by cutting a protector along a plane which is orthogonal to an axial direction and passes through gas introduction holes, the gas introduction holes are arranged asymmetrically in the circumferential direction of a circumferential wall of the protector.
Tomoki Fujii, Takehiro Oba
Filed: 19 Oct 18
Utility
Light wavelength conversion member and light emitting device
2 Feb 21
An optical wavelength conversion member and a light-emitting device including the optical wavelength conversion member.
Jun Moteki, Shohei Takaku, Yusuke Katsu, Takeshi Mitsuoka, Tsuneyuki Ito
Filed: 20 Oct 17
Utility
Spark plug
2 Feb 21
A spark plug includes: a center electrode; a ground electrode that is provided such that a gap for spark discharge is formed between the center electrode and the ground electrode; and a plug cover covering the center electrode and the ground electrode from a front side to form an auxiliary chamber, the plug cover being provided with a through hole, wherein 60% or more of the auxiliary chamber is present in a sphere.
Tatsuya Gozawa
Filed: 7 May 20
Utility
Method for manufacturing spark plug
26 Jan 21
The present invention provides a method of manufacturing a spark plug which is capable of securing a bonding strength at the middle of a chip while suppressing an occurrence of scattering.
Shunsuke Maki
Filed: 30 May 18
Utility
Wiring board
26 Jan 21
A wiring board includes: a wiring-board body including a first surface and a second surface opposite to the first surface, and including at least one insulator layer; pads formed at at least one of an internal layer boundary plane and the first surface and the second surface defining a first plane; and via conductors connected to corresponding ones of the pads, and arranged in parallel to extend in a thickness direction of the wiring-board body.
Takahiro Hayashi, Takuya Hando
Filed: 11 May 18
Utility
Gas sensor and method for manufacturing the same
12 Jan 21
A gas sensor includes a sensing element having an electrode pad a metal terminal, and a separator that has insertion holes in which the metal terminal is held.
Takehiro Oba, Shogo Nagata, Shunya Mihara
Filed: 5 Jul 17
Utility
Control apparatus and gas detection method
12 Jan 21
A control apparatus mounted on a diesel vehicle including an oxidation catalyst, a selective reduction catalyst, and a gas sensor includes an activation determination section, a concentration computation section, and a deterioration determination section.
Yoshihiro Nakano
Filed: 29 Nov 18
Utility
Sensor element and gas sensor including the sensor
4 Jan 21
A plate-shaped sensor element (10) including at least a first layer (150), a second layer (130), and a third layer (140) being stacked in a stacking direction.
Ai Igarashi, Kouji Toida, Shun Sakuma
Filed: 11 Jun 18
Utility
Sintered electrically conductive oxide for oxygen sensor electrode, and oxygen sensor using the same
4 Jan 21
A sintered electrically conductive oxide for an oxygen sensor electrode includes a crystal phase formed of a perovskite-type electrically conductive oxide containing at least La, Fe and Ni.
Hisashi Kozuka, Yasuyuki Okimura, Kazushige Ohbayashi
Filed: 11 May 16
Utility
Wiring substrate for inspection apparatus
4 Jan 21
A wiring substrate for inspection apparatus includes a base substrate and a plurality of tile substrates.
Takakuni Nasu
Filed: 7 Feb 19
Utility
Gas sensor
28 Dec 20
Disclosed is a stacked-type plate-shaped sensor element for detecting the concentration of a specific gas component in a gas under measurement.
Yasumitsu Shimizu, Takayuki Kito
Filed: 7 Feb 19
Utility
Manufacturing method of gas sensor
28 Dec 20
Disclosed is a manufacturing method of a gas sensor.
Takehiro Oba, Tatsuya Okumura
Filed: 3 May 18
Utility
Ceramic heater
28 Dec 20
Disclosed is a ceramic heater, which includes: a disc-shaped ceramic substrate with top and bottom surfaces; and a planar electrode and first and second heating resistors embedded in the ceramic substrate in this order from top to bottom.
Toshiya Umeki
Filed: 25 Apr 19
Utility
Spark plug
28 Dec 20
A spark plug having an insulator with a leg portion whose outer circumferential surface has an arithmetic mean roughness Ra of 0.5 μm or less.
Haruki Yoshida, Kuniharu Tanaka, Yutaka Yokoyama, Shun Kondo, Hirokazu Kurono, Toshimasa Saji
Filed: 29 May 17
Utility
Ceramic member
28 Dec 20
A ceramic member includes a voltage supply rod capable of reducing a local temperature drop of the ceramic member.
Atsushi Tsuchida
Filed: 28 Nov 16
Utility
Spark plug
14 Dec 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
Spark plug
14 Dec 20
Disclosed is a spark plug in which a first electrode has a tip joined to an electrode base through a fusion zone.
Ryouki Yagi, Masahiro Inoue
Filed: 14 May 17
Utility
Gas sensor
7 Dec 20
Disclosed is a gas sensor for detecting hydrogen gas in a measurement gas atmosphere, including: a first installation part defining a first inner space in communication with the measurement gas atmosphere through a solid electrolyte membrane member; a second installation part defining a second inner space in direct communication with the measurement gas atmosphere; first and second sensor elements respectively installed in the first and second inner spaces; and a calculation unit configured to calculate the concentration of the hydrogen gas according to a potential between the first and second sensor elements.
Masahiro Yamashita, Shoji Kitanoya, Masaya Watanabe, Yusuke Matsukura, Daisuke Ichikawa
Filed: 5 Sep 18
Utility
Gas sensor
30 Nov 20
A gas sensor for detecting the concentration of a detection target gas in an atmosphere of interest is disposed on an electrically insulating member.
Tetsuo Yamada, Hitoshi Furuta
Filed: 20 May 19