Patents Assigned to Soken Inc.
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Publication number: 20180306343Abstract: A solenoid valve includes a coil, a valve element receiving portion, a valve element placed inside of the valve element receiving portion, and a valve portion configured to open and close a gas flow path accompanied with move of the valve element. Either a surface of the valve element opposed to the valve element receiving portion or a surface of the valve element receiving portion opposed to the valve element has a first groove that is extended in an axial direction and a second groove that is arranged to intersect with the first groove and to be extended in a circumferential direction. The first groove is formed to be extended at least from the second groove toward a valve portion-side.Type: ApplicationFiled: April 11, 2018Publication date: October 25, 2018Applicants: SOKEN, INC., TOYOTA JIDOSHA KABUSHIKI KAISHA, JTEKT CORPORATIONInventors: Ryosuke HORI, Hiroki YAHASHI, Koji KIDA, Akio NAKAMURA, Takuya SUZUKI
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Patent number: 10086835Abstract: A road-surface-condition estimation device is configured by a tire-side device and a vehicle-side device so as to grasp a road surface condition based on road surface condition data transmitted from a tire-side device. As a result, the road surface condition or a road surface ? of a traveling road surface of a vehicle can be accurately detected, and a more accurate lane keeping control can be performed according to the detection result. In particular, since the tire-side device estimates the road surface condition by detecting the vibration of a ground contact surface of the tire, the road surface condition can be estimated more accurately. Therefore, the more accurate lane keeping control can be performed.Type: GrantFiled: November 2, 2015Date of Patent: October 2, 2018Assignees: DENSO CORPORATION, SOKEN INCInventors: Takatoshi Sekizawa, Youichirou Suzuki, Masashi Mori, Akira Takaoka
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Patent number: 10086937Abstract: A observation device includes an aircraft and an observation unit attached to the aircraft that observes a target within a predetermined view angle. The aircraft includes a base, at least two thrusters that generate a propulsion force including lift, actuators that change a direction of the propulsion force generated by the thrusters with respect to the base, an inertial measurement unit (IMU) that detects an orientation of the base with respect to a ground surface, and a controller that controls the thrusters and the actuators based on the orientation of the base detected by the IMU. The observation unit is fixedly attached to the base and the aircraft is configured to fly in any arbitrary orientation with respect to the ground surface through a combination of a magnitude of the propulsion force and the direction of the propulsion force of each of the thrusters.Type: GrantFiled: October 28, 2015Date of Patent: October 2, 2018Assignees: DENSO CORPORATION, SOKEN, INC., THE UNIVERSITY OF TOKYOInventors: Takenori Matsue, Koji Kawasaki, Michihiro Matsuura, Masami Kurosaka, Masayuki Inaba
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Publication number: 20180258817Abstract: An internal combustion engine with a turbocharger includes a catalyst, downstream of a turbine, in an exhaust passage. The internal combustion engine includes a waste gate, and a waste gate valve. The internal combustion engine further includes a flow-adjusting member or a flow-adjusting mechanism. The flow-adjusting member disperses a flow of exhaust gas from the waste gate when the opening degree of the waste gate valve is small and concentrates the flow when the opening degree of the waste gate valve is large. The flow-adjusting mechanism switches between a dispersed state in which the flow is dispersed and a concentrate state in which the flow is concentrated.Type: ApplicationFiled: March 6, 2018Publication date: September 13, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SOKEN, INC.Inventors: Hideaki KOSUGE, Tadayoshi NAKASE, Mitsunobu UCHIDA, Masaaki KONO, Keiji YOEDA
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Patent number: 10074895Abstract: A collective antenna device includes: a case having a gradually rising part in which spatial height increases continuously toward a rear part; a ground plate that is accommodated at a bottom part of the case; a first antenna element that is accommodated in the case and configured for a first frequency; and a second antenna element that is accommodated in the case and configured for a second frequency higher than the first frequency. The second element is accommodated in the case such that the second antenna element is located below or behind the gradually rising part and also located behind the first antenna element. A feed point of the second antenna element is located above the ground plate.Type: GrantFiled: February 4, 2015Date of Patent: September 11, 2018Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Yuji Sugimoto, Tadao Suzuki
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Patent number: 10076068Abstract: An electric power converter includes a semiconductor module, a cooler, and a pair of direct current bus bars. The direct current bus bars are connected to the semiconductor. The direct current bus bars serve as current paths between the direct current power supply and the switching element. The cooler is made of metal, and is electrically connected to ground. A proximal bypass capacitor is formed close to the switching element by a heat radiating plate integrated with the semiconductor module, the cooler, and an insulating layer interposed between them. The electric power converter further includes a pair of distal bypass capacitors, each of which has a larger capacitance than the proximal bypass capacitor has, and has a current path to the switching element of which a length is longer than a current path to the switching element from the proximal bypass capacitor.Type: GrantFiled: January 9, 2015Date of Patent: September 11, 2018Assignees: NIPPON SOKEN, INC., DENSO COPORATIONInventors: Shinji Ohoka, Naohisa Harada
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Patent number: 10065667Abstract: Driving wheels and non-driving wheels are installed to a lower portion of a case body. The driving wheels are driven by drive devices, respectively. A control device controls a drive operation of the drive devices. An angle sensing device senses a tilt angle of the case body about a rotational axis of the driving wheels. In a case where the tilt angle of the case body, which is sensed with the angle sensing device, is equal to or larger than a predetermined tilt angle in a state where the driving wheels contact a ground while the non-driving wheels are lifted away from the ground, the control device controls the drive devices in such a manner that the case body is held in a self-standing state with the driving wheels while keeping the non-driving wheel away from the ground.Type: GrantFiled: July 26, 2016Date of Patent: September 4, 2018Assignee: SOKEN, INC.Inventors: Takenori Matsue, Koji Kawasaki, Michihiro Matsuura, Masami Kurosaka, Naoya Katoh
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Publication number: 20180247781Abstract: In an electromagnetic relay device, a stationary core is coaxially arranged in an exciting coil, and constitutes a magnetic circuit. A yoke is arranged to surround an outer periphery of the exciting coil and the second end of the exciting coil to constitute the magnetic circuit. The yoke has an opening that is located to be closer to the first end of the exciting coil than to the second end of the exciting coil, and that faces the stationary core. A movable core is located to face the stationary core via the opening. The movable core is pulled to the stationary core upon the exciting coil being energized. A return spring is made of a magnetic member that is volutely wound in an axial direction of the stationary core. The return spring urges the movable core to be separated from the stationary core.Type: ApplicationFiled: February 26, 2018Publication date: August 30, 2018Applicants: SOKEN, INC., DENSO CORPORATION, ANDEN CO., LTD.Inventors: Yoshitaka NISHIGUCHI, Takahiro SOKI, Hiroaki MURAKAMI, Masanao SUGISAWA
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Patent number: 10060305Abstract: A control device has two modes as control modes of an electric power supply to an electromagnetic solenoid, which are used when a first determining unit determines that a difference between a sensed value of a phase and a target value of the phase exceeds a permissible range. One of the modes is a special mode that is used when a second determining unit determines that the sensed value of the phase reaches a threshold value. Another one of the modes is a normal mode that is used when the second determining unit determines that the sensed value of the phase does not reach the threshold value. In the special mode, the control device controls supply of the electric power to the electromagnetic solenoid in such a manner that an opening degree of an advancing port is larger than the opening degree of the advancing port in the normal mode.Type: GrantFiled: October 26, 2016Date of Patent: August 28, 2018Assignees: DENSO CORPORATION, NIPPON SOKEN, INC., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shota Toda, Shuhei Oe, Toshiki Fujiyoshi, Haruhito Fujimura, Yu Yokoyama
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Publication number: 20180238218Abstract: The fuel addition system comprises: a fuel addition valve, a fuel tank, a first pressure storage chamber storing fuel to be supplied to a fuel injector, a supply pump increasing a pressure of fuel inside the fuel tank and supplying the fuel to the first pressure storage chamber, a pressure reduction valve discharging fuel stored in the first pressure storage chamber, a pressure reduction fuel passage supplying fuel discharged from the first pressure storage chamber to the fuel addition valve, and a control device controlling the fuel addition valve and the pressure reduction valve. The control device detects or estimates a temperature of fuel supplied to the fuel addition valve and, when injecting fuel from the fuel addition valve, controls an amount of fuel discharged from the first pressure storage chamber through the pressure reduction valve so that the temperature of the fuel becomes a reference temperature or more.Type: ApplicationFiled: January 12, 2018Publication date: August 23, 2018Applicants: SOKEN INC., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuro SERAI, Kenichi TOMOMATSU, Takayoshi KOJIMA, Naoki TODA, Kazuhiro UMEMOTO, Toshihiro MORI, Hiromasa NISHIOKA
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Patent number: 10038459Abstract: A network control device includes a communicator performing communications via a transmission line at a preset transmission speed in a wake-up mode, a low frequency attenuator attenuating a low frequency component in a transmission signal having a low transmission speed that is lower than the preset transmission speed at a position between the transmission line and the communicator to receive and transmit the transmission signal to and from the communicator, and a wake-up controller receiving and transmitting a wake-up signal for transitioning from a sleep mode to the wake-up mode, at a transmission line side position of the low frequency attenuator, where the wake-up signal at a low frequency band is subject to attenuation by the low frequency attenuator, for a selective wake-up of a network node via the transmission line for network communications.Type: GrantFiled: April 14, 2016Date of Patent: July 31, 2018Assignees: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Hiroyuki Mori, Youhei Sekiya, Yoshifumi Kaku, Shogo Akasaki
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Publication number: 20180202569Abstract: An actuator includes a rod, an electric motor to generate a rotational driving force on supply of electricity, an output shaft to output the rotational driving force of the electric motor to the rod, a feed screw mechanism, and a rotation prevention mechanism. The feed screw mechanism includes a female screw portion formed on one of the output shaft and the rod, and a male screw portion formed on the other to mesh with the female screw portion. The rotation prevention mechanism is configured to regulate rotation of the rod caused by the rotational driving force of the electric motor.Type: ApplicationFiled: July 7, 2016Publication date: July 19, 2018Applicants: Nippon Soken, Inc., Denso CorporationInventors: Yasuhiro KAWASE, Yukikatsu OZAKI, Mikio MATSUDA, Tetsuya ITOU, Sadahisa ONIMARU, Hiroki ISHII
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Publication number: 20180179384Abstract: A silicone composition is provided comprising (A) an alkenyl-containing organopolysiloxanc having a viscosity of 1.0-100 Pa·s at 25° C., (B) an organopolysiloxane of formula (1), (C) an organohydrogenpolysiloxane of formula (2), (D) an organohydrogenpolysiloxane of formula (3), (E) a filler, (F) a platinum group metal catalyst, and (G) a reaction inhibitor. The composition has a low viscosity and good moldability prior to curing and cures into a dilatant product that exhibits a low storage elastic modulus at a low strain rate and a high storage elastic modulus at a high strain rate.Type: ApplicationFiled: December 27, 2017Publication date: June 28, 2018Applicants: SHIN-ETSU CHEMICAL CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, SOKEN, INC.Inventors: Nobuaki MATSUMOTO, Akira SAKAMOTO, Naomi GOTO, Masahiko ISHII, Hiroaki TAKEUCHI, Yushi SUZUKI, Shinji MIYOSHI
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Patent number: 10002433Abstract: In a boundary line recognition apparatus, based on luminance levels of an image captured by a camera, candidate edge points of a boundary line sectioning a travel road are extracted, and a candidate line of the boundary line is extracted. An apparent width of the candidate line on an image is calculated, from a width of the candidate line in a horizontal direction of the image and an angle of the candidate line relative to a vertical direction of the image. A probability of a candidate line being a boundary line is calculated to be higher, as a degree of the candidate line having characteristics as a boundary line is higher. The calculated probabilities are integrated in respect of a plurality of characteristics to recognize a boundary line. The characteristics include a ratio of the calculated apparent width to an image blur degree is larger than a predetermined value.Type: GrantFiled: December 26, 2013Date of Patent: June 19, 2018Assignees: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Syunya Kumano, Naoki Kawasaki, Shunsuke Suzuki, Tetsuya Takafuji, Kazuma Hashimoto
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Patent number: 9967526Abstract: An image processing device includes an image input section inputting images taken by a vehicle camera, a calibration target specifying section specifying a calibration target included both in a first image and in a second image, a vehicle information input section inputting information indicating travel distance and orientation change of the vehicle, a calculation section, and a storing control section. The calculation section converts the first and the second images to the first and second bird's-eye view images, respectively, arranges the first and the second birds-eye view images on common coordinate system with consideration of corresponding image taking positions and image taking orientations, and calculates at least one orientation parameter of the camera which minimizes position difference and rotation angle difference between the two calibration targets included in the first and second birds-eye view images. The storing control section stores the orientation parameter in storage.Type: GrantFiled: August 23, 2013Date of Patent: May 8, 2018Assignees: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Bingchen Wang, Hirohiko Yanagawa, Masakazu Takeichi, Masayuki Imanishi
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Publication number: 20180118209Abstract: A vehicle control device including a tire-side device and a vehicle-side device is provided. The tire-side device includes a vibration detection unit that outputs a detection signal corresponding to a magnitude of vibration of a tire, a signal processing unit that generates ? data representing a friction coefficient between the tire and a road surface by processing the detection signal, and a transmitter that transmits the ? data. The vehicle-side device includes a receiver that receives the ? data and a travel control unit that estimates the friction coefficient based on the ? data, acquires a braking distance of the vehicle based on the friction coefficient, and controls acceleration and deceleration of the vehicle based on the braking distance.Type: ApplicationFiled: December 8, 2015Publication date: May 3, 2018Applicants: DENSO CORPORATION, SOKEN, INC.Inventors: Youichirou SUZUKI, Akira TAKAOKA, Masashi MORI, Takatoshi SEKIZAWA
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Patent number: 9960001Abstract: A relay system is provided which is designed to avoid flow of inrush current through a capacitor in a pre-charge mode wherein the capacitor is pre-charged. The relay system includes a pair of power lines, a capacitor, a series-connected assembly, a control circuit, and a relay module. The relay module includes two main switches, a main coil, and a sub-coil. In the pre-charge mode, the control circuit energizes both the main and sub-coils to turn on only one of the main switches. Before entering the pre-charge mode, the control circuit diagnoses the sub-coil. When the sub-coil is determined as being malfunctioning, the control circuit inhibits the pre-charge mode from being entered.Type: GrantFiled: February 17, 2016Date of Patent: May 1, 2018Assignees: NIPPON SOKEN, INC., DENSO CORPORATION, ANDEN CO., LTD.Inventors: Ken Tanaka, Shota Iguchi, Tomoaki Tanaka
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Patent number: 9945363Abstract: A cylinder is configured into a bottomed tubular form and includes an inner peripheral wall, an inner bottom wall, an outer peripheral wall and an intake hole and a discharge hole. The inner peripheral wall slidably guides the plunger. The intake hole and the discharge hole communicate between the inner peripheral wall and the outer peripheral wall. A pump housing includes a cylinder receiving hole that includes an inner peripheral wall, into which the cylinder is inserted. A pressurizing chamber is formed by the inner peripheral wall and the inner bottom wall of the cylinder and a distal end outer wall of the plunger.Type: GrantFiled: February 12, 2015Date of Patent: April 17, 2018Assignees: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Teppei Matsumoto, Masatoshi Kuroyanagi, Osamu Hishinuma
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Patent number: 9930615Abstract: A relay device includes a communication signal relay unit for relaying a communication signal and a wake-up signal relay unit for relaying, by bypassing the communication signal relay unit, a wake-up signal that is transmitted using a frequency band which is lower than a communication frequency band used in transmitting the communication signal. The communication signal relay unit includes a low frequency wave attenuation unit for attenuating a signal with a frequency band lower than the communication frequency band. The wake-up signal relay unit includes a wake-up signal filter unit for passing through a signal with a frequency band lower than the communication frequency band.Type: GrantFiled: August 12, 2016Date of Patent: March 27, 2018Assignees: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Youhei Sekiya, Hiroyuki Mori, Yoshifumi Kaku, Shogo Akasaki
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Patent number: 9909852Abstract: An operation position detection apparatus includes: an operation body including front and back side operation surfaces; a casing; three strain generating bodies on at least one operation surface, wherein each strain generating body includes a connection section connected to the operation body, a fixed section fixed to the casing, and a displacement transmission surface displaceable by a pushing pressure to each operation surface; a distortion detection section arranged on each displacement transmission surface and detecting a distortion of the displacement transmission surface; and an operation position calculation section detecting which of the front side operation surface and the back side operation surface is pushed, the magnitude of the operation force generated by the pushing pressure, and an operation position of the pushing pressure, according to a detected distortion.Type: GrantFiled: February 14, 2013Date of Patent: March 6, 2018Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Shinji Hatanaka, Norio Sanma, Toru Nada, Kiyotaka Taguchi, Makoto Manabe, Akira Yoshizawa, Makoto Obayashi