Patents by Inventor Ryoji Negi
Ryoji Negi 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: 11745774Abstract: A track displacement measurement device is a track displacement measurement device that measures displacement of the track on which a railroad car runs, and determines first displacement of the track by performing processing including an integration operation based on motion detection signal responsive to motion of the railroad car due to displacement of the track, determines second displacement of the track based on the rotational movement detection signal responsive to rotational movement of the railroad car, and determines combined displacement of the track based on the first displacement and the second displacement.Type: GrantFiled: June 24, 2022Date of Patent: September 5, 2023Assignee: KAWASAKI RAILCAR MANUFACTURING CO., LTD.Inventors: Shingo Kuwashiro, Masayuki Mitsue, Teruhisa Nakaoka, Ryoji Negi
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Publication number: 20220315070Abstract: A track displacement measurement device is a track displacement measurement device that measures displacement of the track on which a railroad car runs, and determines first displacement of the track by performing processing including an integration operation based on motion detection signal responsive to motion of the railroad car due to displacement of the track, determines second displacement of the track based on the rotational movement detection signal responsive to rotational movement of the railroad car, and determines combined displacement of the track based on the first displacement and the second displacement.Type: ApplicationFiled: June 24, 2022Publication date: October 6, 2022Applicant: Kawasaki Railcar Manufacturing Co., Ltd.Inventors: Shingo KUWASHIRO, Masayuki MITSUE, Teruhisa NAKAOKA, Ryoji NEGI
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Patent number: 10029709Abstract: A railcar includes: an underframe including a pair of side sills located at both respective ends of the underframe in a car width direction and extending in a car longitudinal direction and a plurality of cross beams coupling the pair of side sills to each other in a car width direction; and an underfloor cover covering an underfloor portion of the underframe. The underfloor cover includes upper and lower plate-shaped members (a shielding plate and a closing plate) made of stainless steel, and the upper and lower plate-shaped members are at least partially spaced apart from each other.Type: GrantFiled: November 12, 2013Date of Patent: July 24, 2018Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Go Tateishi, Hiroyuki Kawasaki, Hiroyuki Sakurai, Ryoji Negi, Osamu Muragishi, Yuji Kamei, Shuichi Mizuma
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Connection structure between main transformer and high-voltage device box and railcar including same
Patent number: 9831644Abstract: A connection structure includes: a circuit breaker connected to a power cable through which high-voltage power is supplied; a high-voltage device box accommodating the circuit breaker; a main transformer configured to transform a voltage of the high-voltage power and provided under the floor of the car; a first connector device electrically connected to the circuit breaker and provided at a dividing wall of the high-voltage device box; a second connector device electrically connected to the main transformer and provided at a dividing wall of the main transformer; and a high-voltage cable covered with an insulating coating and having both end portions to which cable connector portions are respectively attached, wherein the high-voltage cable connects the first connector device and the second connector device in such a manner that the cable connector portions respectively fit and are connected to the first connector device and the second connector device.Type: GrantFiled: July 10, 2013Date of Patent: November 28, 2017Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hiroyuki Kawasaki, Hiroyuki Sakurai, Ryoji Negi -
Publication number: 20160297452Abstract: A railcar includes: an underframe including a pair of side sills located at both respective ends of the underframe in a car width direction and extending in a car longitudinal direction and a plurality of cross beams coupling the pair of side sills to each other in a car width direction; and an underfloor cover covering an underfloor portion of the underframe. The underfloor cover includes upper and lower plate-shaped members (a shielding plate and a closing plate) made of stainless steel, and the upper and lower plate-shaped members are at least partially spaced apart from each other.Type: ApplicationFiled: November 12, 2013Publication date: October 13, 2016Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Go TATEISHI, Hiroyuki KAWASAKI, Hiroyuki SAKURAI, Ryoji NEGI, Osamu MURAGISHI, Yuji KAMEI, Shuichi MIZUMA
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Patent number: 9352653Abstract: A railcar includes: a power collector configured to collect electric power through overhead contact lines; a circuit breaking unit connected to the power collector and arranged on a roof of a car; and a plurality of electric power cables connected to the circuit breaking unit. The circuit breaking unit includes: a circuit breaker arranged above the roof and connected to a circuit connected to the power collector; and a branch joint which is integrally connected to a terminal portion of the circuit breaker and arranged under the circuit breaker and to which the plurality of electric power cables are connected.Type: GrantFiled: January 14, 2011Date of Patent: May 31, 2016Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, SWCC SHOWA CABLE SYSTEMS CO., LTD.Inventors: Hiroyuki Kawasaki, Hiroyuki Sakurai, Ryoji Negi, Shin Imanishi, Nobuyuki Sema, Kenji Sekiguchi
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Patent number: 9225075Abstract: The present invention is a high voltage device system mounted on a railcar and includes a plurality of high voltage devices to which high-voltage electric power from an overhead contact line is supplied, a plurality of high-voltage cables configured to connect the high voltage devices with each other, and a joint device to which the high-voltage cables are connected. The high-voltage cables respectively include cable connector portions at tip end portions thereof, and each of the cable connector portions includes a base tubular portion configured to cover the high-voltage cable and a fit tubular portion extending from the base tubular portion in a direction substantially perpendicular to a longitudinal direction of the high-voltage cable. The joint device includes joint connector portions, each of which is fitted to the fit tubular portion of the cable connector portion to be connected to the high-voltage cable.Type: GrantFiled: November 15, 2011Date of Patent: December 29, 2015Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, SWCC SHOWA CABLE SYSTEMS CO., LTD.Inventors: Hiroyuki Kawasaki, Hiroyuki Sakurai, Ryoji Negi, Shin Imanishi, Nobuyuki Sema
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CONNECTION STRUCTURE BETWEEN MAIN TRANSFORMER AND HIGH-VOLTAGE DEVICE BOX AND RAILCAR INCLUDING SAME
Publication number: 20150171604Abstract: A connection structure includes: a circuit breaker connected to a power cable through which high-voltage power is supplied; a high-voltage device box accommodating the circuit breaker; a main transformer configured to transform a voltage of the high-voltage power and provided under the floor of the car; a first connector device electrically connected to the circuit breaker and provided at a dividing wall of the high-voltage device box; a second connector device electrically connected to the main transformer and provided at a dividing wall of the main transformer; and a high-voltage cable covered with an insulating coating and having both end portions to which cable connector portions are respectively attached, wherein the high-voltage cable connects the first connector device and the second connector device in such a manner that the cable connector portions respectively fit and are connected to the first connector device and the second connector device.Type: ApplicationFiled: July 10, 2013Publication date: June 18, 2015Inventors: Hiroyuki Kawasaki, Hiroyuki Sakurai, Ryoji Negi -
Publication number: 20140020999Abstract: A railcar includes: a power collector configured to collect electric power through overhead contact lines; a circuit breaking unit connected to the power collector and arranged on a roof of a car; and a plurality of electric power cables connected to the circuit breaking unit. The circuit breaking unit includes: a circuit breaker arranged above the roof and connected to a circuit connected to the power collector; and a branch joint which is integrally connected to a terminal portion of the circuit breaker and arranged under the circuit breaker and to which the plurality of electric power cables are connected.Type: ApplicationFiled: January 14, 2011Publication date: January 23, 2014Applicants: SWCC SHOWA CABLE SYSTEMS CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hiroyuki Kawasaki, Hiroyuki Sakurai, Ryoji Negi, Shin Imanishi, Nobuyuki Sema, Kenji Sekiguchi
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Publication number: 20140008169Abstract: The present invention is a high voltage device system mounted on a railcar and includes a plurality of high voltage devices to which high-voltage electric power from an overhead contact line is supplied, a plurality of high-voltage cables configured to connect the high voltage devices with each other, and a joint device to which the high-voltage cables are connected. The high-voltage cables respectively include cable connector portions at tip end portions thereof, and each of the cable connector portions includes a base tubular portion configured to cover the high-voltage cable and a fit tubular portion extending from the base tubular portion in a direction substantially perpendicular to a longitudinal direction of the high-voltage cable. The joint device includes joint connector portions, each of which is fitted to the fit tubular portion of the cable connector portion to be connected to the high-voltage cable.Type: ApplicationFiled: November 15, 2011Publication date: January 9, 2014Applicants: SWCC SHOWA CABLE SYSTEMS CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hiroyuki Kawasaki, Hiroyuki Sakurai, Ryoji Negi, Shin Imanishi, Nobuyuki Sema