Patents by Inventor Masahiko Hida
Masahiko Hida 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: 11738972Abstract: A suspension body for an elevator includes a core having a belt-like shape, and a covering layer. The core includes a load bearing layer. The load bearing layer is formed of an impregnation resin and a plurality of high-strength fibers. The covering layer covers at least a part of an outer periphery of the core. The plurality of high-strength fibers include a plurality of kinds of high-strength fibers.Type: GrantFiled: October 24, 2018Date of Patent: August 29, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masahiko Hida, Michihito Matsumoto, Haruhiko Kakutani, Rikio Kondo, Shinya Naito, Naoya Tanaka, Masaya Sera
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Patent number: 11492231Abstract: An elevator apparatus includes: a traction machine including a sheave around which a middle portion of a main rope from which a car and counterweight are suspended is wound; a controller configured to control travel of the car; a section specification unit configured to specify a determination target section serving as a travel section, including at least a travel position of the car, satisfying a predetermined determination execution condition; a sheave rotation detector configured to detect a sheave rotation amount; and a determinator configured to determine traction performance of the sheave based on the sheave rotation amount detected during travel of the car in the determination target section. The determination execution condition is to have a load weight and an acceleration of the car that cause direction of an acceleration vector of one of a car side and a counterweight side heavier than the other to match an ascent direction.Type: GrantFiled: May 23, 2016Date of Patent: November 8, 2022Assignee: Mitsubishi Electric CorporationInventors: Rikio Kondo, Yoshitaka Kariya, Masahiko Hida
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Patent number: 11370640Abstract: A suspension body for an elevator includes a core having a belt-like shape, and a covering layer covering at least a part of an outer periphery of the core. The core includes a load bearing layer. The load bearing layer is formed of an impregnation resin and a plurality of high-strength fibers. Further, the load bearing layer is divided into a plurality of segment layers arranged apart from each other in a thickness direction of the core. An intermediate layer made of a material different from that for the load bearing layer is interposed between the segment layers adjacent to each other in the thickness direction of the core.Type: GrantFiled: April 26, 2018Date of Patent: June 28, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masahiko Hida, Michihito Matsumoto, Haruhiko Kakutani, Rikio Kondo, Shinya Naito, Naoya Tanaka, Masaya Sera
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Publication number: 20210198081Abstract: A suspension body for an elevator includes a core having a belt-like shape, and a covering layer. The core includes a load bearing layer. The load bearing layer is formed of an impregnation resin and a plurality of high-strength fibers. The covering layer covers at least a part of an outer periphery of the core. The plurality of high-strength fibers include a plurality of kinds of high-strength fibers.Type: ApplicationFiled: October 24, 2018Publication date: July 1, 2021Applicant: Mitsubishi Electric CorporationInventors: Masahiko HIDA, Michihito MATSUMOTO, Haruhiko KAKUTANI, Rikio KONDO, Shinya NAITO, Naoya TANAKA, Masaya SERA
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Publication number: 20200122971Abstract: A suspension body for an elevator includes a core having a belt-like shape, and a covering layer covering at least a part of an outer periphery of the core. The core includes a load bearing layer. The load bearing layer is formed of an impregnation resin and a plurality of high-strength fibers. Further, the load bearing layer is divided into a plurality of segment layers arranged apart from each other in a thickness direction of the core. An intermediate layer made of a material different from that for the load bearing layer is interposed between the segment layers adjacent to each other in the thickness direction of the core.Type: ApplicationFiled: April 26, 2018Publication date: April 23, 2020Applicant: Mitsubishi Electric CorporationInventors: Masahiko HIDA, Michihito MATSUMOTO, Haruhiko KAKUTANI, Rikio KONDO, Shinya NAITO, Naoya TANAKA, Masaya SERA
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Patent number: 10486935Abstract: An elevator diagnosing device includes a hoisting machine including a sheave, around which a middle portion of a main rope suspending an elevator car is wound, and a controller controlling travel of the elevator car by controlling operation of the hoisting machine. The controller includes a car controller performing first travel control causing the elevator car to travel at a first acceleration/deceleration and second travel control causing the elevator car to travel at a second acceleration/deceleration less than the first acceleration/deceleration, a rope feed amount difference detector detecting a difference in feed amount of the main rope by rotation of the sheave when the elevator car travels equal distances under the first and second travel controls, and a determiner determining traction performance of the sheave based on the difference in the amount of feed of the main rope detected by the rope feed amount difference detector.Type: GrantFiled: February 18, 2015Date of Patent: November 26, 2019Assignee: Mitsubishi Electric CorporationInventor: Masahiko Hida
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Patent number: 10392226Abstract: A machine room-less elevator includes a car configured to ascend and descend in a hoistway of an architectural structure, a counter weight configured to ascend and descend reversely to the car, a rope configured to suspend the car and the counter weight, and a hoisting machine configured to drive the rope. A support beam assembly, which is configured to bear not a load of the architectural structure but at least loads of the car, the counter weight, the rope, and the hoisting machine, is supported on a top-story floor beam assembly of the architectural structure.Type: GrantFiled: July 3, 2014Date of Patent: August 27, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Masahiko Hida
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Publication number: 20190135582Abstract: An elevator apparatus includes: a traction machine including a sheave around which a middle portion of a main rope from which a car and counterweight are suspended is wound; a controller configured to control travel of the car; a section specification unit configured to specify a determination target section serving as a travel section, including at least a travel position of the car, satisfying a predetermined determination execution condition; a sheave rotation detector configured to detect a sheave rotation amount; and a determinator configured to determine traction performance of the sheave based on the sheave rotation amount detected during travel of the car in the determination target section. The determination execution condition is to have a load weight and an acceleration of the car that cause direction of an acceleration vector of one of a car side and a counterweight side heavier than the other to match an ascent direction.Type: ApplicationFiled: May 23, 2016Publication date: May 9, 2019Applicant: Mitsubishi Electric CorporationInventors: Rikio KONDO, Yoshitaka KARIYA, Masahiko HIDA
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Publication number: 20170327342Abstract: An elevator diagnosing device includes a hoisting machine including a sheave, around which a middle portion of a main rope suspending an elevator car is wound, and a controller controlling travel of the elevator car by controlling operation of the hoisting machine. The controller includes a car controller performing first travel control causing the elevator car to travel at a first acceleration/deceleration and second travel control causing the elevator car to travel at a second acceleration/deceleration less than the first acceleration/deceleration, a rope feed amount difference detector detecting a difference in feed amount of the main rope by rotation of the sheave when the elevator car travels equal distances under the first and second travel controls, and a determiner determining traction performance of the sheave based on the difference in the amount of feed of the main rope detected by the rope feed amount difference detector.Type: ApplicationFiled: February 18, 2015Publication date: November 16, 2017Applicant: Mitsubishi Electric CorporationInventor: Masahiko HIDA
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Patent number: 9632014Abstract: A method for detecting degradation of resin film detects whether a resin coated rope having a circumferential portion coated with resin film has the resin film degraded. The method for detecting degradation of resin film includes: winding a wire on a circumferential portion of the resin coated rope; applying tension to the wire to compress the resin film in a radial direction of the resin coated rope; and comparing a first relationship with a second relationship to determine how the resin film is degraded, the first relationship indicating a relationship between the tension of the wire and how much amount the resin film has compressed, as obtained in the applying, the second relationship indicating a relationship between the tension of the wire and how much amount the resin film has compressed, as predetermined as a reference.Type: GrantFiled: January 11, 2013Date of Patent: April 25, 2017Assignee: Mitsubushi Electric CorporationInventors: Shinya Naito, Chinatsu Sanda, Masahiko Hida, Michio Murai
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Publication number: 20170107083Abstract: A machine room-less elevator includes a car (5) configured to ascend and descend in a hoistway of an architectural structure, a counter weight (14) configured to ascend and descend reversely to the car, a rope (7) configured to suspend the car and the counter weight, and a hoisting machine (6) configured to drive the rope. A support beam assembly, which is configured to bear not a load of the architectural structure but at least loads of the car, the counter weight, the rope, and the hoisting machine, is supported on a top-story floor beam assembly (4) of the architectural structure.Type: ApplicationFiled: July 3, 2014Publication date: April 20, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Masahiko HIDA
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Publication number: 20160001482Abstract: A method of manufacturing a molded product of a silane crosslinked polyethylene resin includes the steps of: melting a silane crosslinked polyethylene resin; extrusion-molding the melted resin; bringing a surface of a molded product obtained by the extrusion molding into contact with an oil-soluble dye solution before at least the surface solidifies; separating the molded product from the oil-soluble dye solution; and cooling the molded product separated from the oil-soluble dye solution. According to the method of manufacturing a molded product of a silane crosslinked polyethylene resin, a molded product of a uniformly-colored silane crosslinked polyethylene resin can be obtained without causing scorching even if a silanol condensation catalyst is blended for molding, and also without impairing productivity since molding and coloring are sequentially carried out.Type: ApplicationFiled: December 24, 2013Publication date: January 7, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shinya NAITO, Masahiko HIDA, Michio MURAI, Toyoki KURODA
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Patent number: 9075023Abstract: A wire rope flaw detector that is capable of accommodating a plurality of wire rope diameters and is inexpensive includes at least two magnetic sensor units that are integrated with a magnetizer and include planer coils placed opposite to each other with a magnetic circuit generated by the magnetizer in between, in the direction almost parallel to the magnetic circuit in a predetermined section of a wire rope. The detector further includes an adjuster capable of changing the distance between the at least two magnetic sensor units depending on the diameter of the wire rope.Type: GrantFiled: June 7, 2011Date of Patent: July 7, 2015Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Yoshioka, Yoshinori Miyamoto, Atsushi Mitsui, Masahiko Hida, Toyohiro Noguchi
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Publication number: 20140366639Abstract: A method for detecting degradation of resin film detects whether a resin coated rope having a circumferential portion coated with resin film has the resin film degraded. The method for detecting degradation of resin film includes: winding a wire on a circumferential portion of the resin coated rope; applying tension to the wire to compress the resin film in a radial direction of the resin coated rope; and comparing a first relationship with a second relationship to determine how the resin film is degraded, the first relationship indicating a relationship between the tension of the wire and how much amount the resin film has compressed, as obtained in the applying, the second relationship indicating a relationship between the tension of the wire and how much amount the resin film has compressed, as predetermined as a reference.Type: ApplicationFiled: January 11, 2013Publication date: December 18, 2014Applicant: Mitsubishi Electric CorporationInventors: Shinya Naito, Chinatsu Sanda, Masahiko Hida, Michio Murai
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Publication number: 20140035569Abstract: A wire rope flaw detector that is capable of accommodating a plurality of wire rope diameters and is inexpensive includes at least two magnetic sensor units that are integrated with a magnetizer and include planer coils placed opposite to each other with a magnetic circuit generated by the magnetizer in between, in the direction almost parallel to the magnetic circuit in a predetermined section of a wire rope. The detector further includes an adjuster capable of changing the distance between the at least two magnetic sensor units depending on the diameter of the wire rope.Type: ApplicationFiled: June 7, 2011Publication date: February 6, 2014Applicant: Mitsubishi Electric CorporationInventors: Takashi Yoshioka, Yoshinori Miyamoto, Atsushi Mitsui, Masahiko Hida, Toyohiro Noguchi
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Publication number: 20120291230Abstract: A wedge-type rope fastening device for an elevator includes: a socket including a through hole formed therethrough, the through hole including a first inner wall surface and a second inner wall surface inclined with respect to the first inner wall surface; and a wedge around which a rope is looped, the wedge including a first outer wall surface and a second outer wall surface inclined with respect to the first outer wall surface, the rope being sandwiched between the first inner wall surface and the first outer wall surface and between the second inner wall surface and the second outer wall surface. An inclination angle of the second outer wall surface relative to the first outer wall surface is larger than an inclination angle of the second inner wall surface relative to the first inner wall surface.Type: ApplicationFiled: March 19, 2010Publication date: November 22, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Masahiko Hida