Patents by Inventor Kenichi Hoshino
Kenichi Hoshino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11933425Abstract: Provided is a linear solenoid valve having at least one notch that opens on an end surface of the land of the spool on the drain chamber side and is formed on an outer peripheral surface of the land. In response to movement of the spool, a state is formed in which the end surface of the land on the drain chamber side is located inside the communication chamber and the output chamber and the drain chamber communicate with each other via the notch and the communication chamber, and a state is formed in which the end surface of the land on the drain chamber side is located inside the output chamber and the output chamber and the drain chamber communicate with each other via the communication chamber.Type: GrantFiled: September 30, 2020Date of Patent: March 19, 2024Assignee: AISIN CORPORATIONInventors: Kenichi Tsuchida, Takahiro Kokubu, Shuichi Takeda, Satomi Hoshino, Shingo Kurimoto
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Patent number: 11929858Abstract: A communication system includes a communication apparatus and a base station. The communication apparatus includes a Discrete Fourier Transform (DFT) transformer which transforms a time-domain signal into a frequency-domain signal with a DFT size that is a product of powers of a plurality of values; a mapper which maps the frequency-domain signal on a plurality of frequency bands, each frequency band being located at a position separate from position(s) of other(s) of the plurality of frequency bands; and a signal generator which generates a single carrier-frequency division multiple access (SC-FDMA) time-domain signal from the mapped signal. The base station includes a receiver which receives the SC-FDMA time-domain signal; a combiner which generates the frequency-domain signal from the SC-FDMA time-domain signal; and a transformer which transforms the frequency-domain signal into the time-domain signal with an inverse Discrete Fourier Transform (IDFT) having the DFT size.Type: GrantFiled: January 3, 2023Date of Patent: March 12, 2024Assignee: Sun Patent TrustInventors: Shinsuke Takaoka, Masayuki Hoshino, Kenichi Miyoshi
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Publication number: 20230170831Abstract: Provided is a work machine capable of improving workability. The work machine is provided with: a motor 14; a first power supply unit 180 connected to a battery pack 5 and supplying a boosted power to the motor 14; and a second power supply unit 130 connected to an external AC power supply and supplying a boosted power to the motor 14. The voltage and current of the first power supply unit 180 and the voltage and current of the second power supply unit 130 can be variably controlled by a control circuit 182 and a control circuit 136, respectively. The control circuits 136, 182 perform control so that the power output from the respective first power supply unit 180 and the second power supply unit 130 is combined and supplied to the motor 14.Type: ApplicationFiled: March 31, 2021Publication date: June 1, 2023Applicant: Koki Holdings Co., Ltd.Inventors: Kenichi HOSHINO, Yasushi NAKANO, Tomoaki SUDO, Eiji Nakayama
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Patent number: 10886970Abstract: A load drive system for driving a load supplied with power from a power line includes a control unit which controls switching between the power line and the load and a communication unit which communicates using voltage and current of the power line. When performing the switching, the control unit controls, based on a width of a transition period of the power-line current, the transition period being attributable to the switching, timing of the switching so as to move the transition period away from a center of a period corresponding to a symbol communicated by the communication unit.Type: GrantFiled: August 31, 2017Date of Patent: January 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tomohiko Yano, Hiroki Yamashita, Taizo Yamawaki, Atsushi Arata, Mitsuhiko Watanabe, Ryusuke Sahara, Kenichi Hoshino
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Patent number: 10700741Abstract: A correct commutation is realized even if a communication error occurs due to a change in an actuator drive current. An electronic control unit that includes a communication section outputting a control signal and that can transmit the control signal to an actuator connected to the electronic control unit via a power line, includes an actuator operation detection section. When the actuator operation detection section detects an actuator operation, the communication section retransmits the control signal at timing of detecting the actuator operation.Type: GrantFiled: July 6, 2017Date of Patent: June 30, 2020Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroki Yamashita, Taizo Yamawaki, Hidehiro Toyoda, Teppei Hirotsu, Ryosuke Ishida, Hirofumi Kurimoto, Kenichi Hoshino
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Publication number: 20200059264Abstract: A correct commutation is realized even if a communication error occurs due to a change in an actuator drive current. An electronic control unit that includes a communication section outputting a control signal and that can transmit the control signal to an actuator connected to the electronic control unit via a power line, includes an actuator operation detection section. When the actuator operation detection section detects an actuator operation, the communication section retransmits the control signal at timing of detecting the actuator operation.Type: ApplicationFiled: July 6, 2017Publication date: February 20, 2020Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroki YAMASHITA, Taizo YAMAWAKI, Hidehiro TOYODA, Teppei HIROTSU, Ryosuke ISHIDA, Hirofumi KURIMOTO, Kenichi HOSHINO
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Publication number: 20200014424Abstract: A load drive system for driving a load supplied with power from a power line includes a control unit which controls switching between the power line and the load and a communication unit which communicates using voltage and current of the power line. When performing the switching, the control unit controls, based on a width of a transition period of the power-line current, the transition period being attributable to the switching, timing of the switching so as to move the transition period away from a center of a period corresponding to a symbol communicated by the communication unit.Type: ApplicationFiled: August 31, 2017Publication date: January 9, 2020Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tomohiko YANO, Hiroki YAMASHITA, Taizo YAMAWAKI, Atsushi ARATA, Mitsuhiko WATANABE, Ryusuke SAHARA, Kenichi HOSHINO
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Patent number: 10221945Abstract: The present invention addresses the problem of obtaining an electronic control device for a vehicular automatic transmission that suppresses sudden acceleration, sudden deceleration, and gear shift shock that occur when the transmission moves into a fail-safe mode due to the electronic control device stopping during a main CPU abnormality. An electronic control device 100 for a vehicular automatic transmission has: a main CPU 3 that performs gear shift control for the vehicular automatic transmission; and a sub-CPU 4 that detects abnormalities in the main CPU 3. When the sub-CPU 4 detects an abnormality in the main CPU 3 while the vehicle is traveling, the sub-CPU 4 stops the gear shift control executed by the main CPU 3.Type: GrantFiled: January 12, 2016Date of Patent: March 5, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Kenichi Hoshino, Ryosuke Ishida, Hideki Sekiguchi
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Publication number: 20180003296Abstract: The present invention addresses the problem of obtaining an electronic control device for a vehicular automatic transmission that suppresses sudden acceleration, sudden deceleration, and gear shift shock that occur when the transmission moves into a fail-safe mode due to the electronic control device stopping during a main CPU abnormality. An electronic control device 100 for a vehicular automatic transmission has: a main CPU 3 that performs gear shift control for the vehicular automatic transmission; and a sub-CPU 4 that detects abnormalities in the main CPU 3. When the sub-CPU 4 detects an abnormality in the main CPU 3 while the vehicle is traveling, the sub-CPU 4 stops the gear shift control executed by the main CPU 3.Type: ApplicationFiled: January 12, 2016Publication date: January 4, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Kenichi HOSHINO, Ryosuke ISHIDA, Hideki SEKIGUCHI
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Patent number: 9600047Abstract: Disclosed is an electronic control unit capable of identifying an abnormality in a power supply voltage without narrowing the operating voltage range, and having minimal effects on cost and the circuit mounting surface area. The ECU includes a microcomputer containing an input terminal VCCin and an input terminal Vrin, a power supply IC that supplies a power supply voltage VCC to the input terminal VCCin, and as a reference-voltage-generator circuit a voltage-divider resistor and a voltage-divider resistor configuring a voltage-dividing circuit that outputs a sub-divided voltage Vc is sub-divided from the power supply voltage VCC, a capacitor coupled at one end to the input terminal Vrin and coupled on at the other end to ground, and a voltage isolation element coupled between the voltage-dividing circuit and the input terminal Vrin.Type: GrantFiled: February 1, 2013Date of Patent: March 21, 2017Assignee: Hitachi Automotive Systems, Ltd.Inventors: Yasushi Sugiyama, Takuya Mayuzumi, Ryosuke Ishida, Yasuhiko Okada, Kiyoomi Kadoya, Kenichi Hoshino
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Patent number: 9154033Abstract: A current control semiconductor device that can detect a current with high precision within an IC of one chip by dynamically correcting a variation in a gain a and an offset b, and a control device using the semiconductor device are provided. A transistor 4, a current-voltage converter circuit 22, and an AD converter 23 are disposed on an identical semiconductor chip. Reference current generator circuits 6 and 6? superimpose a current pulse Ic on a current of a load 2, and vary a voltage digital value output by the AD converter. A gain/offset correction unit 8 subjects a variation in a voltage digital value caused by the reference current generator circuits 6, 6? to signal processing, and dynamically acquires gains a, a? and offsets b, b? in a linear relational expression of the voltage digital value output by the AD converter 23 and a current digital value of the load.Type: GrantFiled: July 3, 2012Date of Patent: October 6, 2015Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kenichi Hoshino, Teppei Hirotsu, Ryosuke Ishida
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Publication number: 20150039913Abstract: Disclosed is an electronic control unit capable of identifying an abnormality in a power supply voltage without narrowing the operating voltage range, and having minimal effects on cost and the circuit mounting surface area. The ECU includes a microcomputer containing an input terminal VCCin and an input terminal Vrin, a power supply IC that supplies a power supply voltage VCC to the input terminal VCCin, and as a reference-voltage-generator circuit a voltage-divider resistor and a voltage-divider resistor configuring a voltage-dividing circuit that outputs a sub-divided voltage Vc is sub-divided from the power supply voltage VCC, a capacitor coupled at one end to the input terminal Vrin and coupled on at the other end to ground, and a voltage isolation element coupled between the voltage-dividing circuit and the input terminal Vrin.Type: ApplicationFiled: February 1, 2013Publication date: February 5, 2015Inventors: Yasushi Sugiyama, Takuya Mayuzumi, Ryosuke Ishida, Yasuhiko Okada, Kiyoomi Kadoya, Kenichi Hoshino
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Publication number: 20150029682Abstract: Proposed is a C/U that is designed to accomplish the above object. The CU includes a multilayer circuit substrate, a resin cover, and a metal base. Electronic parts are mounted on both surfaces of the multilayer circuit substrate which is covered with the resin cover and the metal base. The multilayer circuit substrate 8 includes a signal pattern, a GND pattern, an important signal pattern, and a multilayer circuit substrate insulating layer. The GND pattern is electrically connected to the metal base through a screw. The GND pattern is disposed on the side of the resin cover in order to shield the important signal pattern against electromagnetic waves penetrating the resin cover to enter a housing and electromagnetic waves incident from the metal base side. The important signal pattern is disposed so that it is covered with the GND pattern and the metal case.Type: ApplicationFiled: February 8, 2013Publication date: January 29, 2015Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Kiyoomi Kadoya, Ryosuke Ishida, Takuya Mayuzumi, Kenichi Hoshino, Yasuhiko Okada, Yasushi Sugiyama
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Publication number: 20140145696Abstract: A current control semiconductor device that can detect a current with high precision within an IC of one chip by dynamically correcting a variation in a gain a and an offset b, and a control device using the semiconductor device are provided. A transistor 4, a current-voltage converter circuit 22, and an AD converter 23 are disposed on an identical semiconductor chip. Reference current generator circuits 6 and 6? superimpose a current pulse Ic on a current of a load 2, and vary a voltage digital value output by the AD converter. A gain/offset correction unit 8 subjects a variation in a voltage digital value caused by the reference current generator circuits 6, 6? to signal processing, and dynamically acquires gains a, a? and offsets b, b? in a linear relational expression of the voltage digital value output by the AD converter 23 and a current digital value of the load.Type: ApplicationFiled: July 3, 2012Publication date: May 29, 2014Applicant: Hitachi Automotive Systems, Ltd.Inventors: Kenichi Hoshino, Teppei Hirotsu, Ryosuke Ishida
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Publication number: 20130209777Abstract: A ceramics sliding member for use in ultrapure water or pure water of the present invention is made of a non-continuous-pore SiC sintered body. The non-continuous-pore SiC sintered body includes ?-SiC at a ratio of 20% by weight or more thereto and has an average crystal structure whose aspect ratio is 2 or greater.Type: ApplicationFiled: September 11, 2012Publication date: August 15, 2013Applicants: NIPPON PILLAR PACKING CO., LTD., EBARA CORPORATIONInventors: Hiroshi Nagasaka, Hiroshi Yokota, Junya Kawabata, Hideki Kanno, Kenichi Hoshino, Satoshi Fujiwara, Eiji Okumachi
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Patent number: 8277653Abstract: A power recovery chamber is used for a positive-displacement power recovery apparatus in the seawater desalination plant or system. The power recovery chamber includes a cylinder, a piston disposed in the cylinder and capable of being reciprocated in a longitudinal direction of the cylinder, and a piston guide disposed in the cylinder and extending in the longitudinal direction of the cylinder for guiding the piston when the piston is reciprocated in the longitudinal direction of the cylinder. At least a part of an outer circumferential surface of the piston is out of contact with an inner surface of the cylinder, and the piston is brought into contact with the piston guide at a part where the piston guide passes through the piston.Type: GrantFiled: March 31, 2009Date of Patent: October 2, 2012Assignee: Ebara CorporationInventors: Masao Shinoda, Kenichi Hoshino, Akira Goto, Hideki Kanno
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Publication number: 20100130343Abstract: A ceramics sliding member for use in ultrapure water or pure water of the present invention is made of an SiC sintered body. The SiC sintered body includes ?-SiC at a ratio of 20% or more thereto and has an average crystal structure whose aspect ratio is 2 or greater.Type: ApplicationFiled: April 25, 2008Publication date: May 27, 2010Applicants: EBARA CORPORATION, NIPPON PILLAR PACKING CO., LTD.Inventors: Hiroshi Nagasaka, Hiroshi Yokota, Junya Kawabata, Hideki Kanno, Kenichi Hoshino, Satoshi Fujiwara, Eiji Okumachi
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Publication number: 20090242471Abstract: A power recovery chamber is used for a positive-displacement power recovery apparatus in the seawater desalination plant or system. The power recovery chamber includes a cylinder, a piston disposed in the cylinder and capable of being reciprocated in a longitudinal direction of the cylinder, and a piston guide disposed in the cylinder and extending in the longitudinal direction of the cylinder for guiding the piston when the piston is reciprocated in the longitudinal direction of the cylinder. At least a part of an outer circumferential surface of the piston is out of contact with an inner surface of the cylinder, and the piston is brought into contact with the piston guide at a part where the piston guide passes through the piston.Type: ApplicationFiled: March 31, 2009Publication date: October 1, 2009Applicant: EBARA CORPORATIONInventors: Masao SHINODA, Kenichi Hoshino, Akira Goto, Hideki Kanno
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Patent number: 5006426Abstract: An alkaline storage battery such as a sealed nickel-cadmium storage battery has an improved current collector tab structure connected as a current path to the marginal edge of a spirally coiled electrode of an electrode assembly. The current collector tab structure comprises either a plurality of current collector tabs or a single current collector tab comprising a current collecting tab and a lead tab thicker than the current collecting tab. With this arrangement, the internal resistance of the storage battery is reduced, and high-rate discharge performance is achieved.Type: GrantFiled: October 26, 1989Date of Patent: April 9, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norio Suzuki, Sennosuke Oda, Hiromi Maruyama, Kenichi Hoshino