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公开(公告)号：US20180024038A1
公开(公告)日：2018-01-25
申请号：US15657503
申请日：2017-07-24
Applicant: DENSO CORPORATION
Inventor： Hironobu SHIMOKAWA , Kazuhiko KOIKE , Masahiro YAMAMOTO , Go MIYAGAWA
Abstract: The particulate matter detection sensor includes a conductive part, and the pair of electrodes that are arranged at specified spacing so as to face each other. The conductive part is formed into a plate shape using a conductive material having electrical resistivity that is higher than particulate matter. One major surface of the conductive part functions as an accumulation surface on which particulate matter accumulates. The pair of electrodes are formed on this accumulation surface.
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公开(公告)号：US20230003840A1
公开(公告)日：2023-01-05
申请号：US17930669
申请日：2022-09-08
Applicant: DENSO CORPORATION
Inventor： Masahiro YAMAMOTO
Abstract: A flexible substrate includes a heater portion and a wiring portion. A heater wire is formed in the heater portion. The heater portion is fixed to a transparent window. In the wiring portion, a wiring to the heater wire is formed. The wiring portion extends to a rear side of a casing in a case where a side on which the transparent window is provided in the casing is set as a front side. A fixing member fixes the wiring portion within the casing. A light shielding member is constituted to shield stray light from the fixing member toward a detection unit.
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公开(公告)号：US20210188219A1
公开(公告)日：2021-06-24
申请号：US17190815
申请日：2021-03-03
Applicant: DENSO CORPORATION
Inventor： Masahiro YAMAMOTO
IPC: B60S1/56 , G01S17/931 , G01S7/481
Abstract: A ranging device is configured to emit a transmitted wave and detect a reflected wave from an object illuminated by the transmitted wave, thereby measuring a distance to the object. At least one of the transmitted wave and the reflected wave is transmitted through a transmission window. A heater is configured to heat the transmission window. A controller is configured to control energization of the heater in response to an outside temperature that is a temperature outside the ranging device and a speed of the vehicle.
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公开(公告)号：US20210116544A1
公开(公告)日：2021-04-22
申请号：US17138681
申请日：2020-12-30
Applicant: DENSO CORPORATION
Inventor： Masahiro YAMAMOTO , Jiro MOMEN
IPC: G01S7/481 , G01S17/931 , G01S17/08 , B60S1/02
Abstract: A distance measuring device includes a measuring unit, a controlling unit, and an accessory part. The measuring unit includes an applying unit that applies a transmission wave and a detector that detects a reflected wave resulting from the transmission wave. The controlling unit is configured to perform a measurement, by using the measuring unit, a distance to an object to which the transmission wave is applied. The accessory part is attached to the measuring unit and configured to operate when energized. The controlling unit is configured to control energization of the accessory part in accordance with a state of the measurement of the distance performed by using the measuring unit.
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公开(公告)号：US20200018679A1
公开(公告)日：2020-01-16
申请号：US16340231
申请日：2017-10-05
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOIKE , Masahiro YAMAMOTO , Michiyasu MORITSUGU , Kensuke TAKIZAWA
Abstract: A detection conductive section and a monitor conductive section made of a conductive material having a higher electrical resistivity than that of PM are included. A deposition surface on which the PM is deposited is provided to the detection conductive section. A pair of detection electrodes are provided to the deposition surface. A pair of monitor electrodes are provided to the monitor conductive section. The configuration is made such that no PM is deposited on the monitor conductive section between the pair of monitor electrodes.
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Patent Agency Ranking
公开(公告)号：US20180313739A1
公开(公告)日：2018-11-01
申请号：US15769797
申请日：2016-10-20
Applicant: DENSO CORPORATION
Inventor： Go MIYAGAWA , Masayuki TAMURA , Masahiro YAMAMOTO , Takashi ARAKI , Toshihiro SAKAWA , Masato KATSUNO , Manabu YOSHIDOME
Abstract: An apparatus which detects particulate matter is provided. This apparatus estimates a volume of water inside an exhaust passage using estimation sections. When an estimated volume of water is larger than a water drainage threshold, an element portion is heated using a heater by the first temperature range controller, in a temperature range which resists water-induced cracking independent of a volume of water droplets. If the estimated volume of water is less than a water drainage threshold, the water drainage determination section determines that the water drainage of the exhaust passage is completed. Additionally, if it is estimated that the water drainage is completed, the element portion is heated by a second temperature controller at temperature lower than a starting temperature of combustion of particulate matter and in order to repel water adhered onto the element portion in a water-repellent temperature range for a predetermined period.
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公开(公告)号：US20160308524A1
公开(公告)日：2016-10-20
申请号：US14901767
申请日：2014-07-09
Applicant: DENSO CORPORATION
Inventor： Takeshi Inoue , Takahiro Iwamura , Masahiro YAMAMOTO
CPC classification number: H03K17/168 , H01L27/0207 , H01L27/0629 , H01L27/0727 , H01L29/0619 , H01L29/0634 , H01L29/7397 , H01L29/7811 , H01L29/7813 , H02M1/08 , H02M1/38 , H02M2001/0009 , H02M2001/0048 , H02M2001/0051 , H02M2001/0054 , H03K17/166 , H03K17/74 , Y02B70/1491
Abstract: A drive control device for two semiconductor elements having a transistor structure and a diode structure with a common energization electrode includes: a current detection device outputting a current detection signal of the semiconductor elements; and a first control device outputting a gate drive signal from when a first time period has elapsed from a starting time to when a second time period has elapsed from the starting time, at which an off-command signal is input after it is determined that a current flows through the semiconductor elements in a forward direction of the diode structure during a time period for which an on-command signal is input to the semiconductor elements. The first and the second time periods are preliminary set not to generate an arm short-circuit between two semiconductor elements.
Abstract translation: 具有晶体管结构的两个半导体元件和具有公共通电电极的二极管结构的驱动控制装置包括：电流检测装置，输出半导体元件的电流检测信号; 以及第一控制装置，从第一时间段开始经过从开始时刻到经过从执行断开命令信号的第二时间段起经过了第二时间段之后的门驱动信号， 在输入到半导体元件的指令信号的时间段期间，电流在二极管结构的正方向上流过半导体元件。 第一和第二时间段被初步设定为不在两个半导体元件之间产生臂短路。
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公开(公告)号：US20220113382A1
公开(公告)日：2022-04-14
申请号：US17645579
申请日：2021-12-22
Applicant: DENSO CORPORATION
Inventor： Masahiro YAMAMOTO
IPC: G01S7/481 , G01S17/931
Abstract: A ranging apparatus is provided which is mountable to a vehicle and includes a transmitter, at least one detector, a light transmissive window, a heater, a snow accumulation condition determiner, a snowfall condition determiner, and a heater controller. The heater works to heat the transmissive window. The snow accumulation condition determiner determines a snow accumulation condition of a surface of the light transmissive window. The snowfall condition determiner determines a snowfall condition around the vehicle. The heater controller works to control energization of the heater depending upon the snow accumulation condition and the snowfall condition. The heater controller stops energizing the heater for a period of time when it is determined that there is neither the snow accumulation on the surface of the light transmissive window nor the snowfall around the vehicle.
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公开(公告)号：US20220113381A1
公开(公告)日：2022-04-14
申请号：US17645574
申请日：2021-12-22
Applicant: DENSO CORPORATION
Inventor： Masahiro YAMAMOTO , Chiharu UCHIYAMA
IPC: G01S7/481 , G01S17/931
Abstract: A ranging apparatus is provided which is mountable to a vehicle and emits a transmit wave and receives a reflected wave arising from reflection of the transmit signal from an object to calculate a distance to the object. The ranging apparatus includes a light transmissive window, a heater, and a controller. The light transmissive window permits at least one of the transmit wave and the reflected wave to pass through. The heater works to add thermal energy to the light transmissive window. The controller uses an ambient temperature outside the ranging apparatus and a speed of the vehicle derived from a vehicle speed sensor to control energization of the heater. When the vehicle speed sensor is malfunctioning, the controller controls the energization of the heater as a function of the ambient temperature without use of the speed of the vehicle.
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公开(公告)号：US20220003844A1
公开(公告)日：2022-01-06
申请号：US17479449
申请日：2021-09-20
Applicant: DENSO CORPORATION
Inventor： Masahiro YAMAMOTO
Abstract: In a LIDAR device, a projector projects scanning light along a preset scanning direction, and a receiver receives incident light from a scan area. An optical window is provided in an opening of a housing that houses the projector and the receiver, where the optical window transmits the light projected by the projector and the light received by the receiver. A heater wire for heating the optical window is provided on a least a projection window that is a projector side area of the optical window. A wire spacing that is a minimum distance between two points on adjacent segments of the heater wire, one on each, is equal to or greater than a width of a beam of the light projected by the projector in a direction connecting the two points.
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