Patents by Inventor Hajime Yoshida
Hajime Yoshida 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: 10974619Abstract: A vehicle seat comprises a frame member provided on a floor of a vehicle, a seat part such as a seat cushion detachably attached to the frame member, a mechanical connector device provided on the frame member and the seat part for detachably attaching the seat part to the frame member; and an electric connector device provided on the frame member and the seat part for electrically connecting an electric component provided on the seat part to an electric component provided on the frame member.Type: GrantFiled: March 26, 2018Date of Patent: April 13, 2021Assignee: TS TECH CO., LTD.Inventors: Hiroyuki Kaku, Hiroyuki Numajiri, Hitomi Kobayashi, Takako Miyoshi, Satoshi Fujita, Katsuhiko Abe, Hajime Yoshida, Takahiro Mitsui, Tomoyuki Kurimoto
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Patent number: 10940772Abstract: A vehicle seat comprises a frame member provided on a floor of a vehicle, a seat part such as a seat cushion detachably attached to the frame member, a mechanical connector device provided on the frame member and the seat part for detachably attaching the seat part to the frame member; and an electric connector device provided on the frame member and the seat part for electrically connecting an electric component provided on the seat part to an electric component provided on the frame member.Type: GrantFiled: March 26, 2018Date of Patent: March 9, 2021Assignee: TS TECH CO., LTD.Inventors: Hiroyuki Kaku, Hiroyuki Numajiri, Hitomi Kobayashi, Takako Miyoshi, Satoshi Fujita, Katsuhiko Abe, Hajime Yoshida, Takahiro Mitsui, Tomoyuki Kurimoto
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Publication number: 20200340206Abstract: A hydraulic drive system for a hydraulic excavator that enables leveling work and a jack-up operation by a blade in a float state, that can prevent a body from falling even when an operator has falsely operated the hydraulic excavator during the jack-up operation by the blade, and that yet can perform favorable leveling work with the blade turned into the float state is provided. A float switch 37, a float valve 38, and a controller 34 are provided, the float valve 38 is changed over to a float position VI upon operating the float switch 37 when the blade is not in a jack-up state, the float valve 38 is changed over from the float position VI to a normal position V when the float valve 38 is in a state of being at the float position VI and an operation lever device 22 has been operated, and the float valve 38 is kept at the normal position V when the float valve 38 is at the normal position V and the float switch 37 has been operated in the jack-up state.Type: ApplicationFiled: March 24, 2017Publication date: October 29, 2020Inventors: Kazushige MORI, Hajime YOSHIDA, Yoshifumi TAKEBAYASHI, Natsuki NAKAMURA, Daisuke OKA
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Publication number: 20200232180Abstract: Provided is a construction machine that can prevent a machine body from being lowered without placing a blade in a floating state when the machine body is jacked up, even if the operator performs an erroneous operation, and that can perform favorable leveling work by placing the blade in the floating state when the machine body is not jacked up. A hydraulic excavator includes a pressure sensor that detects the pressure in a bottom-side oil chamber of a blade cylinder, and a controller that switches between validation and invalidation of a floating command and a lowering command for a blade operation device. In the case where the pressure detected by the pressure sensor is less than a predetermined value, the controller switches a solenoid selector valve to an interruption position to invalidate the floating command when a forward stroke of the operation lever is equal to or more than a reference value.Type: ApplicationFiled: January 31, 2019Publication date: July 23, 2020Inventors: Yoshifumi TAKEBAYASHI, Hajime YOSHIDA, Natsuki NAKAMURA, Daisuke OKA
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Patent number: 10676897Abstract: A construction machine that can easily regulate a set maximum flow rate at a time of replacement of an attachment and that can improve an energy conservation performance is provided. A controller selects a corresponding map in response to an attachment designation signal from among maps each of which sets a relationship between an operation signal per type of the attachment and a flow rate of a hydraulic fluid supplied to an actuator, generates a control signal by causing the selected map to refer to the operation signal, and controls a flow control valve of an attachment flow rate regulation valve device in such a manner that a position of the flow control valve is switched over from a neutral position on the basis of the control signal. An unloading valve that maintains a differential pressure across the flow control valve is disposed in the attachment flow rate regulation valve device.Type: GrantFiled: February 15, 2019Date of Patent: June 9, 2020Assignee: Hitachi Construction Machinery Tierra Co., LtdInventors: Daisuke Oka, Hajime Yoshida, Yoshifumi Takebayashi, Natsuki Nakamura
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Publication number: 20200165794Abstract: To provide a small hydraulic excavator, which even may have an upperstructure formed such that at least its rear end swings within a body width range and having a limited installation space for devices, that allows an accumulator to be disposed and allows the accumulator to be protected from external force generated during work. The present invention relates to a rear small-swing type mini excavator that includes an accumulator 30 accommodating and recovering potential energy and hydraulic energy used by at least one of drives of an undercarriage 1, an upperstructure 2 formed such that its rear end swings within the body width range of the undercarriage 1, and a working device 3.Type: ApplicationFiled: February 22, 2017Publication date: May 28, 2020Inventors: Yoshifumi TAKEBAYASHI, Hajime YOSHIDA, Kazushige MORI, Natsuki NAKAMURA, Taihei MAEHARA
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Publication number: 20190292753Abstract: A construction machine that can easily regulate a set maximum flow rate at a time of replacement of an attachment and that can improve an energy conservation performance is provided. A controller selects a corresponding map in response to an attachment designation signal from among maps each of which sets a relationship between an operation signal per type of the attachment and a flow rate of a hydraulic fluid supplied to an actuator, generates a control signal by causing the selected map to refer to the operation signal, and controls a flow control valve of an attachment flow rate regulation valve device in such a manner that a position of the flow control valve is switched over from a neutral position on the basis of the control signal. An unloading valve that maintains a differential pressure across the flow control valve is disposed in the attachment flow rate regulation valve device.Type: ApplicationFiled: February 15, 2019Publication date: September 26, 2019Inventors: Daisuke OKA, Hajime YOSHIDA, Yoshifumi TAKEBAYASHI, Natsuki NAKAMURA
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Patent number: 10384567Abstract: A vehicle seat includes a seat cushion frame, a slide mechanism, a drive source, and a transmission mechanism configured to receive a driving force from the drive source and to cause the seat cushion frame to move in a front-rear direction. The slide mechanism includes a guide member extending in the front-rear direction and a slide member movable along the guide member relative to the guide member; the seat cushion frame is fixed to one of the guide member and the slide member, and another of the guide member and the slide member is fixed to a floor of a vehicle; and the drive source is fixed to the floor of the vehicle.Type: GrantFiled: November 11, 2015Date of Patent: August 20, 2019Assignee: TS TECH CO., LTD.Inventors: Hajime Yoshida, Koji Onuma, Hideki Usami, Kazuhiro Hayashi
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Patent number: 10315508Abstract: Provided is a hybrid work machine in which a hybrid system and a downsized engine are used. The hybrid work machine performs rapid charging of a power storage device while preventing decreases in the output power of a hydraulic pump. A vehicle body controller performs engine revolution speed decreasing control in which, if the charge rate of a battery becomes equal to or less than a minimum charge rate, the target revolution speed of an engine is reduced. The vehicle body controller also performs torque reducing control in which the maximum absorption torque of a hydraulic pump is reduced. By performing these control operations, the vehicle body controller coercively generates surplus torque for the engine and operates a generator-motor as a generator.Type: GrantFiled: November 25, 2015Date of Patent: June 11, 2019Assignee: Hitachi Construction Machinery Tierra Co., LtdInventors: Hajime Yoshida, Shuuhei Noguchi
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Patent number: 10254189Abstract: A static expansion method is performed by expanding a volume of a testing gas from V0 to V0+V1 between a second chamber of the volume V1 which is connected to an upstream side of a measurement chamber and a first chamber of the volume V0 which is connected to an upstream side of the second chamber, wherein the first camber is in communication with the second chamber via a first valve, wherein the second chamber is in communication with the measurement chamber via each of a second valve and an orifice or porous plug, respectively. When the first valve is opened and the second valve is closed, the testing gas flows from the first chamber via the second chamber into the measurement chamber only through the orifice or porous plug.Type: GrantFiled: October 3, 2017Date of Patent: April 9, 2019Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hajime Yoshida, Kenta Arai, Tokihiko Kobata
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Publication number: 20190024342Abstract: To achieve saving of fuel consumption and noise reduction by adopting a hybrid type and miniaturizing an engine and to ensure safe and reliable battery charging in a case in which a charge amount of a battery is quite insufficient, a hydraulic work machine includes: a gate lock sensor (28); a forced charging switch (41); a work machine monitor (43) that notifies an operator that a charging rate of a battery (33) falls to be lower than a critical charging rate; and a machine controller (46). The machine controller (46) actuates a generator motor (31) as a generator to forcedly charge the battery (33) when a gate lock lever (26) is operated to a lock position (D), an engine control dial (12) designates a low idle engine speed, and the forced charging switch (41) is operated.Type: ApplicationFiled: September 16, 2016Publication date: January 24, 2019Inventors: Hajime YOSHIDA, Shuuhei NOGUCHI, Motoaki ISHII
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Publication number: 20180333124Abstract: According to one embodiment, the X-ray diagnosis apparatus includes an X-ray detector, X-ray diaphragm apparatus, and processing circuitry controlling the X-ray diaphragm apparatus to shield the X-rays from passing through a X-ray filter outside an aperture region or a partial region during a transition from first fluoroscopy employing an X-ray filter to second fluoroscopy employing diaphragm blades, generating a first and second fluoroscopic image during the first and second fluoroscopy respectively, generating a composite image during the second fluoroscopy by combining a non-ROI image of the first fluoroscopic image and a ROI image of the second fluoroscopic image, and displaying the first fluoroscopic image and the composite image on the display during the first and second fluoroscopy respectively.Type: ApplicationFiled: April 6, 2018Publication date: November 22, 2018Applicant: Canon Medical Systems CorporationInventors: Makoto Kaneko, Koutaro Matsuo, Ko Fuchigami, Hajime Yoshida
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Patent number: 10094728Abstract: Provided are: a vacuum gauge that, with a simple configuration, can accurately diagnose the degree of contamination of the vacuum gauge; and a contamination diagnosis method that, with a simple process, can accurately diagnose the degree of contamination of a vacuum gauge. Provided is a cold cathode ionization vacuum gauge that has a normal operation mode and a contamination diagnosis mode, the cold cathode ionization vacuum gauge comprising: an anode 1 and a cathode 3 that are for measuring vacuum pressure in the normal operation mode; an anode 7 and the cathode 3 that are for measuring the vacuum pressure in the contamination diagnosis mode; and a controller 10 that compares the size of a current measured between the anode 7 and the cathode 3 and the size of a current measured between the anode 1 and the cathode 3.Type: GrantFiled: July 29, 2015Date of Patent: October 9, 2018Assignee: National Institute of Advanced Industrial Science and TechnologyInventor: Hajime Yoshida
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Publication number: 20180281621Abstract: A vehicle seat comprises a frame member provided on a floor of a vehicle, a seat part such as a seat cushion detachably attached to the frame member, a mechanical connector device provided on the frame member and the seat part for detachably attaching the seat part to the frame member; and an electric connector device provided on the frame member and the seat part for electrically connecting an electric component provided on the seat part to an electric component provided on the frame member.Type: ApplicationFiled: March 26, 2018Publication date: October 4, 2018Inventors: Hiroyuki Kaku, Hiroyuki Numajiri, Hitomi Kobayashi, Takako Miyoshi, Satoshi Fujita, Katsuhiko Abe, Hajime Yoshida, Takahiro Mitsui, Tomoyuki Kurimoto
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Publication number: 20180038758Abstract: A static expansion method is performed by expanding a volume of a testing gas from V0 to V0+V1 between a second chamber of the volume V1 which is connected to an upstream side of a measurement chamber and a first chamber of the volume V0 which is connected to an upstream side of the second chamber, wherein the first camber is in communication with the second chamber via a first valve, wherein the second chamber is in communication with the measurement chamber via each of a second valve and an orifice or porous plug, respectively. When the first valve is opened and the second valve is closed, the testing gas flows from the first chamber via the second chamber into the measurement chamber only through the orifice or porous plug.Type: ApplicationFiled: October 3, 2017Publication date: February 8, 2018Inventors: Hajime YOSHIDA, Kenta ARAI, Tokihiko KOBATA
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Publication number: 20170313209Abstract: A vehicle seat includes a seat cushion frame, a slide mechanism, a drive source, and a transmission mechanism configured to receive a driving force from the drive source and to cause the seat cushion frame to move in a front-rear direction. The slide mechanism includes a guide member extending in the front-rear direction and a slide member movable along the guide member relative to the guide member; the seat cushion frame is fixed to one of the guide member and the slide member, and another of the guide member and the slide member is fixed to a floor of a vehicle; and the drive source is fixed to the floor of the vehicle.Type: ApplicationFiled: November 11, 2015Publication date: November 2, 2017Inventors: Hajime YOSHIDA, Koji ONUMA, Hideki USAMI, Kazuhiro HAYASHI
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Publication number: 20170274755Abstract: Provided is a hybrid work machine in which a hybrid system and a downsized engine are used. The hybrid work machine improves fuel consumption, improves exhaust characteristics, and reduces noise. The hybrid work machine also performs rapid charging of a power storage device while preventing decreases in the output power of a hydraulic pump if the charge amount of the power storage device is extremely insufficient. A vehicle body controller 46 performs engine revolution speed decreasing control in which, if the charge rate of a battery 33 becomes equal to or less than a minimum charge rate, the target revolution speed of an engine 11 is reduced. The vehicle body controller also performs torque reducing control in which the maximum absorption torque of a hydraulic pump 21 is reduced.Type: ApplicationFiled: November 25, 2015Publication date: September 28, 2017Inventors: Hajime YOSHIDA, Shuuhei NOGUCHI
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Publication number: 20170254714Abstract: Provided are: a vacuum gauge that, with a simple configuration, can accurately diagnose the degree of contamination of the vacuum gauge; and a contamination diagnosis method that, with a simple process, can accurately diagnose the degree of contamination of a vacuum gauge. Provided is a cold cathode ionization vacuum gauge that has a normal operation mode and a contamination diagnosis mode, the cold cathode ionization vacuum gauge comprising: an anode 1 and a cathode 3 that are for measuring vacuum pressure in the normal operation mode; an anode 7 and the cathode 3 that are for measuring the vacuum pressure in the contamination diagnosis mode; and a controller 10 that compares the size of a current measured between the anode 7 and the cathode 3 and the size of a current measured between the anode 1 and the cathode 3.Type: ApplicationFiled: July 29, 2015Publication date: September 7, 2017Inventor: Hajime Yoshida
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Publication number: 20170135662Abstract: According to one embodiment, a medical image diagnosis system includes a plurality of devices, operating circuitry, processing circuitry, and a display. The plurality of devices is to be inserted into a body of an object. The operating circuitry operates at least one of the devices. The processing circuitry obtains a medical image of the object and specifies a device being operated based on movement of the device in the medical image when the device is being operated by the operating circuitry. The display identifiably displays a device to be operated by the operating circuitry based on a result of specification by the processing circuitry.Type: ApplicationFiled: November 15, 2016Publication date: May 18, 2017Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Kazunari Shima, Hajime Yoshida, Kazuhiro Taniyama, Satoru Ohishi, Takeo Matsuzaki
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Patent number: 9593630Abstract: During an operation, a control device (38) for performing output control of an engine (10) determines whether or not the engine (10) and/or an exhaust gas purifying device (18) has a malfunction. If it is determined that the engine (10) and/or the exhaust gas purifying device (18) has a malfunction, a highest rotational speed of the engine (10) is controlled to a second rotational speed (Nt) higher by a predetermined amount (?) than a first rotational speed (Ns) at which an engine maximum torque (Tm) before the malfunction can be outputted. In this case, a maximum fuel injection quantity of the engine (10) is limited so that a rated torque (Tr) before the malfunction can be outputted at the first rotational speed (Ns).Type: GrantFiled: December 24, 2012Date of Patent: March 14, 2017Assignee: HITACHI CONSTRUCTION MACHINERY TIERRA CO., LTD.Inventors: Hajime Yoshida, Shuuhei Noguchi