4584 patents
Page 24 of 230
Utility
Wireless communication device and wireless communication method
23 May 23
A wireless communication device includes a transmitter that is provided in a rotary part of a rotary device and transmits a wireless signal; a receiver that is provided in a stationary part of the rotary device, receives the wireless signal, and calculates a communication quality level based on the wireless signal; and processing circuitry to determine a communication cycle based on the communication quality level so that the communication cycle synchronizes with a cycle as a multiple of a rotation cycle of the rotary part by an integer greater than or equal to 1, and to make timing of the communication between the transmitter and the receiver follow the rotation cycle by increasing or decreasing the communication cycle so that the communication quality level increases.
Naosuke Ito
Filed: 23 Apr 19
Utility
Busbar connecting device
23 May 23
Provided is a busbar connecting device that can achieve good workability and high reliability at the same time.
Shintaro Yamada, Katsushi Nakada, Katsuki Hotta, Yasutomo Otake, Takao Tsurimoto, Shintaro Kuroaki
Filed: 26 Dec 18
Utility
Rotary electric machine
23 May 23
Provided is a rotary electric machine that is able to suppress vibration noise of the rotary electric machine caused by an out-of-plane deformation.
Keiichi Konishi, Naoki Ohashi, Ryuichi Kitora, Koichi Shimizu
Filed: 9 May 18
Utility
Communication system, master device and submaster device
23 May 23
A communication system includes a master device and a plurality of slave devices.
Hiroyuki Yamamoto
Filed: 18 Sep 19
Utility
Motor control device and air-conditioning apparatus having the same
23 May 23
A motor control device includes a power converter that supplies a three-phase voltage to two motors being connected in parallel, a three-phase power line that connects between one of the two motors and the power converter, a branch three-phase power line that connects between the other of the two motors and the power converter, a switching device having two switches that are provided on the branch three-phase power line, a current detection device that detects three-phase currents flowing in the two motors, and a controller.
Toshiki Asai, Akihiro Tsumura, Yasuhiko Wada, Junji Morimoto, Shigeo Takata
Filed: 23 Apr 19
Utility
Control communication system
23 May 23
There is provided a control communication system in which when an abnormality occurs in a function provided by a control apparatus, the function where the abnormality has occurred is relocated to another control apparatus so that the continuity of the function is suppressed from being deteriorated.
Mikiya Yoshida
Filed: 11 Aug 20
Utility
Induction cooker with plurality of heating coils
23 May 23
An induction cooker according to the present invention includes: a plurality of heating coils aligned in one row on a same plane; and a controller.
Ikuro Suga
Filed: 16 Mar 18
Utility
Power conversion device and motorized vehicle using same
16 May 23
There has been a drawback in that current command values need to be set for a current command unit of a power conversion device in accordance with efficiency, and thus the number of operation steps increases.
Takafumi Ichikawa, Masahiro Iezawa, Noriyuki Wada, Kotaro Nakano
Filed: 23 Dec 19
Utility
Air-conditioning system
16 May 23
Provided is an air-conditioning system including: an air pollution level detector configured to detect each of a pollution level of outside air, which is air outside a vehicle, and a pollution level of inside air, which is air inside the vehicle; and an air-conditioning control device configured to control air conditioning by switching an air-conditioning mode of the vehicle between an inside-air circulation mode and an outside-air introduction mode.
Hajime Hasegawa
Filed: 27 Oct 17
Utility
Water treatment plant
16 May 23
A water treatment plant includes a central monitoring device, a control device, a control device, and a computation unit, and causes a water treatment apparatus and a water treatment apparatus to execute water treatment.
Natsumi Hatta, Takushi Kawada, Go Wakamatsu, Kenta Shimoda, Nozomu Yasunaga
Filed: 26 Jul 18
Utility
Cooler
16 May 23
A cooler includes a base on the upper surface of which semiconductor elements are mounted; a housing which is superimposed on the rear surface side of the base and between which and the base a refrigerant flow path is formed; screws which are disposed in the outer peripheral portion of an overlap region between the base and the housing and which fasten and fix the base to the housing; O-rings which seal the outer peripheral portion of the refrigerant flow path; and joining members which are disposed in a joining surface portion of the housing, which is inside the outer peripheral portion of the refrigerant flow path and makes contact with the base, and which bite into the base and housing in an unpenetrated state.
Noriyuki Fukakusa, Masahiro Noguchi, Takashi Omura
Filed: 27 Jan 20
Utility
Grating coupler and integrated grating coupler system
16 May 23
A grating coupler having first and second ends for coupling a light beam to a waveguide of a chip includes a substrate configured to receive the light beam from the first end and transmit the light beam through the second end, the substrate having a first refractive index n1, a grating structure having curved grating lines arranged on the substrate, the grating structure having a second refractive index n1, wherein the curved grating lines have line width w and height d and are arranged by a pitch Λ, wherein the second refractive index n2 is less than first refractive index n1, and a cladding layer configured to cover the grating structure, wherein the cladding layer has a third refractive index n3.
Keisuke Kojima, Satoshi Nishikawa, Shusaku Hayashi, Yosuke Suzuki, Jonathan Klamkin, Yingheng Tang
Filed: 23 Feb 21
Utility
Semiconductor device having inner lead exposed from sealing resin, semiconductor device manufacturing method thereof, and power converter including the semiconductor device
16 May 23
Inner leads having die pads having upper surfaces to which semiconductor elements are mounted each have a stepped profile, and surfaces of portions of the inner leads are exposed from a sealing resin in plan view.
Keitaro Ichikawa
Filed: 25 May 21
Utility
Switching apparatus and electric-power conversion apparatus
16 May 23
The objective is to provide a function of detecting loss of a current detection function, at a time when a switching device has an open failure, in an arm that has the current detection function and a temperature detection function and in which two or more switching devices are connected in parallel with one another.
Takashi Kaneyama
Filed: 29 Jul 21
Utility
Hall thruster power supply device and control method of hall thruster power supply device
16 May 23
A time average peak value of low frequency magnetic noise or low frequency conductive noise generated from a power supply device which drives a Hall thruster is suppressed without mass of a satellite significantly increased.
Hiroyuki Osuga, Takayuki Hidaka, Takashi Miyamoto
Filed: 12 Oct 16
Utility
Device and method for inserting quadruplet and device and method for extracting quadruplet
16 May 23
The invention relates to inserting reference signals in a radio signal to be transmitted over a wireless communication system, the radio signal being emitted according to a specific SS-STBC scheme, the method comprising, inserting the reference signals to transmit them in the radio signal such as samples of these reference signals are in specific positions in the SS-STBC symbol.
Cristina Ciochina, Arnaud Bouttier, Jean-Christophe Sibel
Filed: 18 Feb 19
Utility
Authentication system and computer readable medium
16 May 23
In an authentication system (120) of an organization that is another organization different from a first organization that a first user belongs to, a management device (200) accepts a registration transaction for a client certificate of the first user.
Masaya Honjo, Mitsuhiro Matsumoto
Filed: 11 Aug 20
Utility
Recording device for railroad vehicle, air conditioning device for railroad vehicle, and recording method for railroad vehicle
9 May 23
A detector detects physical quantities relating to an operation of a vehicle air-conditioning device at a predetermined sampling frequency to generate groups of time-series data items.
Yasuyuki Miyazaki, Koichi Harada
Filed: 8 Dec 17
Utility
Headlight device
9 May 23
A headlight device includes an optical unit to emit light and a support mechanism to support the optical unit.
Ritsuya Oshima, Masashige Suwa, Muneharu Kuwata
Filed: 20 Nov 19
Utility
Total heat exchange element and total heat exchanger
9 May 23
A total heat exchange element includes partitions disposed in a state of being opposed to each other, and a spacer portion keeping a space between the partitions and forming a passage between the partitions.
Hajime Sotokawa, Shinya Tokizaki
Filed: 20 Mar 18