Patents by Inventor Ryo Nishikawa
Ryo Nishikawa 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: 11954459Abstract: A program editing device edits a machining program in which a machining path along which a wire electrode of a wire electrical discharge machine machines a workpiece is defined. The machining program includes a plurality of blocks corresponding to respective multiple partial paths into which the machining path is divided, each of the blocks including path information indicating the corresponding partial path. The program editing device includes an analyzer analyzing the machining program and thereby identifying a predetermined shape pattern formed by a series of the multiple partial paths in the machining path, an information generator generating shape information corresponding to the identified predetermined shape pattern, and an editor inserting the shape information into the machining program.Type: GrantFiled: December 1, 2020Date of Patent: April 9, 2024Assignee: FANUC CORPORATIONInventors: Kousuke Ookubo, Ryo Nishikawa
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Publication number: 20240109291Abstract: The printing device includes a head 36 that prints on a medium, a medium support section that has a support surface to support the medium, a head movement section 40 that mounts the head 36 and moves in the front-rear direction Y while straddling the medium support section in the width direction, a control section that controls the head 36, and a connection cable 55 that connects the head 36 and the control section, wherein, the connection cable 55 is located in the region where the head 36 can move in the front-back direction Y and in the space lower than the head 36 in the lower direction Z2.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Inventors: Ryo NISHIKAWA, Keita HANAWA
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Publication number: 20240109285Abstract: A printing apparatus includes a head that faces a medium supported by a medium support unit and ejects a liquid, an interference object sensor including a detector that detects an interference object with the head, and a cover that can switch the detector to a shielded state and to an exposed state.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Inventors: Kenjiro ISHIHARA, Kazuhisa TAKEDA, Keita HANAWA, Ryo NISHIKAWA
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Publication number: 20240109351Abstract: A printing device 10 includes a head unit 39 configured to eject liquid onto a medium; a first movement section 37 configured to move the head unit 39 in a width direction X; a guide frame 40 configured to guide movement of the head unit 39 in a width direction X; and a second movement section 38 configured to move the first movement section 37 in a forward and rearward direction Y intersecting the width direction X, wherein the guide frame 40 includes a first bent section 81 formed by bending a metal plate along the width direction X and a second bent section 82 formed by bending the metal plate along the width direction X, and guides the head unit 39 by a first guide section 84, which is between the first bent section 81 and the second bent section 82.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Inventors: Keita HANAWA, Tatsuya ITO, Ryo NISHIKAWA
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Publication number: 20230405697Abstract: This wire electric discharge machine includes a servo controller which controls the relative speeds of wire electrodes to a workpiece according to a machining condition; a machining current control unit which controls discharge energy generated between the electrodes; and a machining condition setting unit which sets, as a first condition, the machining condition when approaching a machining end face, and, as a second machining condition, the machining condition when a movement distance of the wire electrode with respect to the workpiece reaches a prescribed distance, after the number of times discharge is determined to occur between the electrodes reaches a prescribed number of times within a unit time.Type: ApplicationFiled: November 1, 2021Publication date: December 21, 2023Inventors: Ryuuki FUNAKUBO, Ryo NISHIKAWA
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Publication number: 20230390844Abstract: A wire electrical discharge machining apparatus includes a servo controller that controls the relative speed of a wire electrode in relation to a workpiece, in accordance with a machining parameter; a machining electrical current control unit that controls the electrical discharge energy produced between poles; an electrical discharge determination unit that determines whether electrical discharge has occurred between the poles within a unit time; and a machining parameter setting unit that sets a machining parameter, which is for during the approach to a machining end surface, to a first parameter, and sets the machining parameter to a second parameter when the number of times that electrical discharge has been determined to have occurred has reached a prescribed number of times.Type: ApplicationFiled: November 1, 2021Publication date: December 7, 2023Inventors: Ryuuki FUNAKUBO, Ryo NISHIKAWA
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Publication number: 20230294188Abstract: A tension information acquisition device acquires tension of a wire electrode and is provided with: a back tension adjustment unit that makes the magnitude of back tension of the wire electrode zero; and an acquisition unit that acquires tension information indicating the tension on the basis of a disturbance estimate value or output torque of a feed motor when the magnitude of the back tension is zero.Type: ApplicationFiled: July 8, 2021Publication date: September 21, 2023Applicant: FANUC CORPORATIONInventor: Ryo NISHIKAWA
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Publication number: 20230193489Abstract: A light-driven fuel cell includes a cathode, an anode, and a proton-permeable membrane between the anode and the cathode. The anode includes a photocatalyst for anaerobic methane oxidation reaction, and when the anode is supplied with methane and water and is irradiated with light, methanol, protons and electrons are generated by anaerobic methane oxidation reaction from the methane and the water supplied to the anode; the protons pass through the proton-permeable membrane and move to the cathode; and the electrons move to the cathode via an external circuit. The cathode includes a photocatalyst for aerobic methane oxidation reaction, and when the cathode is supplied with methane and oxygen and is irradiated with light, methanol and water are generated by aerobic methane oxidation reaction from the methane and the oxygen supplied to the cathode and the protons and the electrons moved from the anode.Type: ApplicationFiled: May 13, 2021Publication date: June 22, 2023Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Takahiro MATSUMOTO, Masato MURAKAMI, Tatsuya NAKANO, Ryo NISHIKAWA, Kento KIMURA, Kou SAMESHIMA
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Publication number: 20210173619Abstract: A program editing device edits a machining program in which a machining path along which a wire electrode of a wire electrical discharge machine machines a workpiece is defined. The machining program includes a plurality of blocks corresponding to respective multiple partial paths into which the machining path is divided, each of the blocks including path information indicating the corresponding partial path. The program editing device includes an analyzer analyzing the machining program and thereby identifying a predetermined shape pattern formed by a series of the multiple partial paths in the machining path, an information generator generating shape information corresponding to the identified predetermined shape pattern, and an editor inserting the shape information into the machining program.Type: ApplicationFiled: December 1, 2020Publication date: June 10, 2021Inventors: Kousuke OOKUBO, Ryo NISHIKAWA
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Patent number: 7909729Abstract: A control unit for an electric oil pump of the present invention includes: a one-way valve that permits circulation of operating fluid from the electric oil pump to the friction engagement device and blocks circulation in the opposite direction; an accumulator that is connected to a fluid supply path joining the one-way valve to the friction engagement device and accumulates hydraulic pressure required for operating the friction engagement device; a hydraulic pressure measuring device that measures hydraulic pressure inside the fluid supply path; a vehicle speed measuring device that measures a vehicle speed of the vehicle; and a pressure setting device that sets a first predetermined pressure based on the vehicle speed measured by the vehicle speed measuring device.Type: GrantFiled: October 4, 2006Date of Patent: March 22, 2011Assignee: Honda Motor Co., Ltd.Inventors: Masashi Tanaka, Ryo Nishikawa, Hisayoshi Arai
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Patent number: 7578761Abstract: A hydraulic circuit control device that selectively supplies oil to a first oil passage and a second oil passage by an oil pump, the control device includes: an oil passage switching unit adapted to connect the oil pump to either the first oil passage or the second oil passage; a control mode switching unit adapted to switch the control mode of the electric motor to either a torque control mode or a speed control mode; an oil passage selecting unit adapted to select whether to connect the oil pump to the first oil passage or the second oil passage; and a control unit adapted to perform control so that the control mode switching unit switches the control mode to the torque control mode when the first oil passage has been selected, and perform control so that the control mode switching unit switches the control mode to the speed control mode when the second oil passage has been selected.Type: GrantFiled: March 29, 2006Date of Patent: August 25, 2009Assignee: Honda Motor Co., Ltd.Inventors: Ryo Nishikawa, Takashi Aoki, Masashi Tanaka, Nobuhiro Kira
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Patent number: 7240748Abstract: In a hybrid vehicle in which front wheels are driven by an engine and a front motor, and rear wheels are driven by a main rear motor and a sub rear motor, both main rear motor and the sub rear motor are driven when a large driving force is required as when the vehicle is driven at low speed to haul a trailer or the like or to run on a sandy ground, whereas when the required driving force is small, only the main rear motor is driven.Type: GrantFiled: September 17, 2003Date of Patent: July 10, 2007Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Nobuhiro Kira, Tetsuya Hasebe, Ryo Nishikawa
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Patent number: 7216943Abstract: A hybrid vehicle is capable of performing regenerative operations of generator-motors disposed adjacently to front wheels and/or rear wheels of the vehicle so as to achieve efficient conversion of kinetic energy of the vehicle into electric energy as much as possible when the vehicle slows down, thereby permitting higher use efficiency of energy. When the vehicle decelerates, a target deceleration force or a target deceleration torque of the vehicle is set, and a permissible maximum value of the braking torque to be imparted to rear wheels from a second generator-motor is set, and the permissible maximum value and the target deceleration torque of the vehicle, whichever is smaller, is set as a target braking torque to be imparted from the second generator-motor to the rear wheels.Type: GrantFiled: November 10, 2004Date of Patent: May 15, 2007Assignee: Honda Motor Co., Ltd.Inventors: Ryo Nishikawa, Hirokatsu Amanuma, Kazuhisa Yamamoto
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Publication number: 20070080582Abstract: A control unit for an electric oil pump of the present invention includes: a one-way valve that permits circulation of operating fluid from the electric oil pump to the friction engagement device and blocks circulation in the opposite direction; an accumulator that is connected to a fluid supply path joining the one-way valve to the friction engagement device and accumulates hydraulic pressure required for operating the friction engagement device; a hydraulic pressure measuring device that measures hydraulic pressure inside the fluid supply path; a vehicle speed measuring device that measures a vehicle speed of the vehicle; and a pressure setting device that sets a first predetermined pressure based on the vehicle speed measured by the vehicle speed measuring device.Type: ApplicationFiled: October 4, 2006Publication date: April 12, 2007Inventors: Masashi Tanaka, Ryo Nishikawa, Hisayoshi Arai
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Publication number: 20060223670Abstract: A hydraulic circuit control device that selectively supplies oil to a first oil passage and a second oil passage by an oil pump, the control device includes: an oil passage switching unit adapted to connect the oil pump to either the first oil passage or the second oil passage; a control mode switching unit adapted to switch the control mode of the electric motor to either a torque control mode or a speed control mode; an oil passage selecting unit adapted to select whether to connect the oil pump to the first oil passage or the second oil passage; and a control unit adapted to perform control so that the control mode switching unit switches the control mode to the torque control mode when the first oil passage has been selected, and perform control so that the control mode switching unit switches the control mode to the speed control mode when the second oil passage has been selected.Type: ApplicationFiled: March 29, 2006Publication date: October 5, 2006Inventors: Ryo Nishikawa, Takashi Aoki, Masashi Tanaka, Nobuhiro Kira
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Patent number: 6954045Abstract: There are provided as drive sources an engine 2, a front motor 3 provided on a front wheels 8 side of the vehicle and a rear motor 4 provided on a rear wheels 9 side of the vehicle, and in executing a regeneration of deceleration energy when braking, a regeneration capacity of the front motor 3 and a regeneration capacity of the rear motor 4 are calculated, respectively, so that the regeneration is executed with either of these motors 3, 4 which can provide a larger regeneration capacity.Type: GrantFiled: November 20, 2003Date of Patent: October 11, 2005Assignee: Honda Motor Co.Inventors: Ryo Nishikawa, Yusuke Tatara, Akihiro Yamamoto, Kazunari Takahashi
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Publication number: 20050099146Abstract: A hybrid vehicle is capable of performing regenerative operations of generator-motors disposed adjacently to front wheels and/or rear wheels of the vehicle so as to achieve efficient conversion of kinetic energy of the vehicle into electric energy as much as possible when the vehicle slows down, thereby permitting higher use efficiency of energy. When the vehicle decelerates, a target deceleration force or a target deceleration torque of the vehicle is set, and a permissible maximum value of the braking torque to be imparted to rear wheels from a second generator-motor is set, and the permissible maximum value and the target deceleration torque of the vehicle, whichever is smaller, is set as a target braking torque to be imparted from the second generator-motor to the rear wheels.Type: ApplicationFiled: November 10, 2004Publication date: May 12, 2005Inventors: Ryo Nishikawa, Hirokatsu Amanuma, Kazuhisa Yamamoto
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Publication number: 20040104699Abstract: There are provided as drive sources an engine 2, a front motor 3 provided on a front wheels 8 side of the vehicle and a rear motor 4 provided on a rear wheels 9 side of the vehicle, and in executing a regeneration of deceleration energy when braking, a regeneration capacity of the front motor 3 and a regeneration capacity of the rear motor 4 are calculated, respectively, so that the regeneration is executed with either of these motors 3, 4 which can provide a larger regeneration capacity.Type: ApplicationFiled: November 20, 2003Publication date: June 3, 2004Applicant: HONDA MOTOR CO., LTD.Inventors: Ryo Nishikawa, Yusuke Tatara, Akihiro Yamamoto, Kazunari Takahashi
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Publication number: 20040069548Abstract: In a hybrid vehicle in which front wheels are driven by an engine and a front motor, and rear wheels are driven by a main rear motor and a sub rear motor, both main rear motor and the sub rear motor are driven when a large driving force is required as when the vehicle is driven at low speed to haul a trailer or the like or to run on a sandy ground, whereas when the required driving force is small, only the main rear motor is driven.Type: ApplicationFiled: September 17, 2003Publication date: April 15, 2004Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Nobuhiro Kira, Tetsuya Hasebe, Ryo Nishikawa