Patents by Inventor Hiroya Ito
Hiroya Ito 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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Publication number: 20240136915Abstract: A power converter includes: a multiphase inverter circuit including a plurality of switching elements; a plurality of current sensors each configured to detect a current of the inverter circuit and output a value of the current detected; a terminal voltage detector configured to detect a voltage of each terminal of a load connected to the inverter circuit and output a value of the voltage detected; a switching element drive circuit configured to control the plurality of switching elements of the inverter circuit according to a switching pattern given; a fault detector configured to detect a fault in the inverter circuit or the plurality of current sensors; and a fault identifier configured to, after the fault detector detects the fault, switch the switching pattern to be given to the switching element drive circuit according to types of faults detectable by the fault detector, and perform identification processing of identifying a type and a location of the fault in the inverter circuit or the plurality of cuType: ApplicationFiled: April 13, 2021Publication date: April 25, 2024Applicant: Mitsubishi Electric CorporationInventors: Hiroya NATSUHARA, Isao KEZOBO, Tatsuya MORI, Chiaki FUJIMOTO, Atsushi ITO, Yusuke TAKARADA
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Publication number: 20240066774Abstract: A mold device includes a primary mold and a secondary mold. The primary mold includes a cavity mold and a primary core mold. The primary mold is configured to inject a first resin material into a first cavity to mold a primary molded product, the first cavity being formed by clamping the cavity mold and the primary core mold. The secondary mold includes the cavity mold and a secondary core mold. The secondary mold is configured to inject a second resin material into a second cavity to stack mold a secondary molded product on a peripheral edge of the primary molded product. The second cavity is formed by clamping the cavity mold and the secondary core mold. The cavity mold is configured to hold the primary molded product. The cavity mold includes a primary molded product holding portion configured to project into and retract from the first cavity, on a parting line of the primary mold.Type: ApplicationFiled: December 10, 2021Publication date: February 29, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Tsukasa Ishiwata, Noriyuki Nakajima, Jyunya Sano, Hiroya Ito
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Patent number: 11788547Abstract: A propeller fan includes a shaft portion disposed on a rotation axis, and a blade disposed on an outer peripheral side of the shaft portion and including a leading edge and a trailing edge. The blade includes a negative pressure surface in which a plurality of recesses are formed, and the plurality of recesses include a first recess and a second recess disposed on the trailing edge side than the first recess in a circumferential direction about the rotation axis as a center. The first recess has a depth larger than a depth of the second recess.Type: GrantFiled: June 29, 2022Date of Patent: October 17, 2023Assignee: Mitsubishi Electric CorporationInventors: Takuya Teramoto, Takahide Tadokoro, Katsuyuki Yamamoto, Hiroya Ito, Yuki Ugajin, Shingo Hamada, Takashi Ikeda, Takafumi Abe
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Publication number: 20220325721Abstract: A propeller fan includes a shaft portion disposed on a rotation axis, and a blade disposed on an outer peripheral side of the shaft portion and including a leading edge and a trailing edge. The blade includes a negative pressure surface in which a plurality of recesses are formed, and the plurality of recesses include a first recess and a second recess disposed on the trailing edge side than the first recess in a circumferential direction about the rotation axis as a center. The first recess has a depth larger than a depth of the second recess.Type: ApplicationFiled: June 29, 2022Publication date: October 13, 2022Inventors: Takuya TERAMOTO, Takahide TADOKORO, Katsuyuki YAMAMOTO, Hiroya ITO, Yuki UGAJIN, Shingo HAMADA, Takashi IKEDA, Takafumi ABE
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Patent number: 11434924Abstract: A propeller fan includes a shaft portion disposed on a rotation axis, and a blade disposed on an outer peripheral side of the shaft portion and including a leading edge and a trailing edge. The blade includes a negative pressure surface in which a plurality of recesses are formed, and the plurality of recesses include a first recess and a second recess disposed on the trailing edge side than the first recess in a circumferential direction about the rotation axis as a center. The first recess has a depth larger than a depth of the second recess.Type: GrantFiled: August 9, 2017Date of Patent: September 6, 2022Assignee: Mitsubishi Electric CorporationInventors: Takuya Teramoto, Takahide Tadokoro, Katsuyuki Yamamoto, Hiroya Ito, Yuki Ugajin, Shingo Hamada, Takashi Ikeda, Takafumi Abe
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Publication number: 20220178109Abstract: In a construction machine where an arm, a working attachment, and a distal end portion of an extensible cylinder are coupled via a power link and an idler link, to achieve protection of a grease feeding piping when the grease feeding piping is arranged in the idler link, and to ensure that the structure of the idler link is not complicated.Type: ApplicationFiled: March 2, 2020Publication date: June 9, 2022Applicant: Caterpillar SARLInventors: Naoki MIYATA, Kota TATSUMI, Hirokazu KOGA, Toru AMAYA, Kazufumi NISHIMOTO, Tetsuya KOSHIMA, Hiroya ITO
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Publication number: 20220154760Abstract: To provide a clearance adjusting member that allows for easy attaching and detaching works and has no risk of falling off from a pin. A clearance adjusting member, in a pin coupling structure in which a first member and a second member are coupled freely to be rotated in relation to each other by a cylindrical pin, for adjusting an axial clearance between the first member and the second member, the clearance adjusting member comprises a shim in a U-shape or C-shape attached to the pin in the axial clearance, and a restricting means for restricting the shim so as to be freely releasable. A restricted piece protruding radially outward is formed on an outer circumferential edge of the shim. The restricting means includes a pair of restricting pieces spacedly arranged circumferentially on the radially outer side of the pin.Type: ApplicationFiled: February 13, 2020Publication date: May 19, 2022Applicant: Caterpillar SARLInventors: Tetsuya KOSHIMA, Hirokazu KOGA, Naoki MIYATA, Toru AMAYA, Kota TATSUMI, Kazufumi NISHIMOTO, Hiroya ITO
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Patent number: 11187239Abstract: A propeller fan according to an embodiment of the present invention includes a shaft provided a rotation axis of the propeller fan, and a blade provided on an outer peripheral side of the shaft. The blade has a trailing edge on a rear side of the blade in a rotation direction of the propeller fan. The trailing edge includes a first trailing edge located on an innermost side of the trailing edge, and a second trailing edge adjacent to and outward of the first trailing edge. Where an innermost point of the first trailing edge is a first connection point, a connection point between the first trailing edge and the second trailing edge is a second connection point, and a straight line that extends through the rotation axis and the first connection point is a reference line, the second connection point is located forward of the reference line in the rotation direction, or located on the reference line, and the second trailing edge is located rearward of the second connection point in the rotation direction.Type: GrantFiled: August 9, 2017Date of Patent: November 30, 2021Assignee: Mitsubishi Electric CorporationInventors: Takahide Tadokoro, Takuya Teramoto, Katsuyuki Yamamoto, Hiroya Ito, Yuki Ugajin, Shingo Hamada, Takashi Ikeda, Takafumi Abe
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Patent number: 11187238Abstract: A propeller fan includes a cylindrical shaft portion provided on a rotation axis of the propeller fan; a plurality of blades provided on an outer peripheral side of the shaft portion; a connection portion provided adjacent to the shaft portion and connecting two of the plurality of blades that are adjacent to each other in a circumferential direction of the propeller fan; a first rib provided on at least one of a pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on a downstream side in the flow of air, and a second rib provided on at least one of a negative-pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on an upstream side in the flow of air.Type: GrantFiled: August 9, 2017Date of Patent: November 30, 2021Assignee: Mitsubishi Electric CorporationInventors: Katsuyuki Yamamoto, Takuya Teramoto, Takahide Tadokoro, Hiroya Ito, Yuki Ugajin, Shingo Hamada, Takashi Ikeda, Takafumi Abe
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Publication number: 20210003140Abstract: A propeller fan includes a cylindrical shaft portion provided on a rotation axis of the propeller fan; a plurality of blades provided on an outer peripheral side of the shaft portion; a connection portion provided adjacent to the shaft portion and connecting two of the plurality of blades that are adjacent to each other in a circumferential direction of the propeller fan; a first rib provided on at least one of a pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on a downstream side in the flow of air, and a second rib provided on at least one of a negative-pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on an upstream side in the flow of air.Type: ApplicationFiled: August 9, 2017Publication date: January 7, 2021Inventors: Katsuyuki YAMAMOTO, Takuya TERAMOTO, Takahide TADOKORO, Hiroya ITO, Yuki UGAJIN, Shingo HAMADA, Takashi IKEDA, Takafumi ABE
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Publication number: 20210003142Abstract: A propeller fan according to an embodiment of the present invention includes a shaft provided a rotation axis of the propeller fan, and a blade provided on an outer peripheral side of the shaft. The blade has a trailing edge on a rear side of the blade in a rotation direction of the propeller fan. The trailing edge includes a first trailing edge located on an innermost side of the trailing edge, and a second trailing edge adjacent to and outward of the first trailing edge. Where an innermost point of the first trailing edge is a first connection point, a connection point between the first trailing edge and the second trailing edge is a second connection point, and a straight line that extends through the rotation axis and the first connection point is a reference line, the second connection point is located forward of the reference line in the rotation direction, or located on the reference line, and the second trailing edge is located rearward of the second connection point in the rotation direction.Type: ApplicationFiled: August 9, 2017Publication date: January 7, 2021Inventors: Takahide TADOKORO, Takuya TERAMOTO, Katsuyuki YAMAMOTO, Hiroya ITO, Yuki UGAJIN, Shingo HAMADA, Takashi IKEDA, Takafumi ABE
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Patent number: 10875227Abstract: A transparent resin molded product and a mold for molding the product are provided in which occurrence of silver streak in the resin molded product is prevented. The resin molded product includes a design portion and a non-design portion, at least a part of the design portion is molded by transparent resin, and a gate trace (a gate arrangement position during the resin molding) is disposed in the non-design portion (runner portion). A foreign matter restraining portion for restraining foreign matters and bubbles contained in the transparent resin is disposed in the vicinity of the gate trace of the non-design portion. The foreign matters and bubbles are restrained by the foreign matter restraining portion and are prevented from flowing to the design portion, and therefore the occurrence of silver streak on the design portion can be prevented.Type: GrantFiled: August 12, 2016Date of Patent: December 29, 2020Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Hiroya Ito, Takatoshi Inoue
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Publication number: 20200166048Abstract: A propeller fan includes a shaft portion disposed on a rotation axis, and a blade disposed on an outer peripheral side of the shaft portion and including a leading edge and a trailing edge. The blade includes a negative pressure surface in which a plurality of recesses are formed, and the plurality of recesses include a first recess and a second recess disposed on the trailing edge side than the first recess in a circumferential direction about the rotation axis as a center. The first recess has a depth larger than a depth of the second recess.Type: ApplicationFiled: August 9, 2017Publication date: May 28, 2020Inventors: Takuya TERAMOTO, Takahide TADOKORO, Katsuyuki YAMAMOTO, Hiroya ITO, Yuki UGAJIN, Shingo HAMADA, Takashi IKEDA, Takafumi ABE
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Patent number: 10583597Abstract: A resin-molded component includes a first molding part, and a second molding part. A portion of the first molding part and a portion of the second molding part are laminated in a direction of connecting an outer surface and an inner surface of the resin-molded component to provide a laminated portion. A portion of the second molding part is provided as an exposed portion. Each of portions of the laminated portion is located at least on opposite sides across the exposed portion. A one-side surface of the exposed portion in the laminating direction of the laminated portion is configured as a portion of the outer surface and the other-side surface thereof is configured as a portion of the inner surface.Type: GrantFiled: August 29, 2018Date of Patent: March 10, 2020Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Hiroya Ito, Takatoshi Inoue, Tsukasa Ishiwata
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Patent number: D850494Type: GrantFiled: September 6, 2017Date of Patent: June 4, 2019Assignee: Caterpillar SARLInventors: Kota Tatsumi, Hiroya Ito
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Patent number: D870254Type: GrantFiled: January 31, 2018Date of Patent: December 17, 2019Assignee: Mitsubishi Electric CorporationInventors: Takuya Teramoto, Takashi Ikeda, Yusuke Adachi, Yuki Ugajin, Shingo Hamada, Hiroya Ito
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Patent number: D870260Type: GrantFiled: January 31, 2018Date of Patent: December 17, 2019Assignee: Mitsubishi Electric CorporationInventors: Takuya Teramoto, Takashi Ikeda, Yusuke Adachi, Yuki Ugajin, Shingo Hamada, Hiroya Ito
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Patent number: D870261Type: GrantFiled: January 31, 2018Date of Patent: December 17, 2019Assignee: Mitsubishi Electric CorporationInventors: Takuya Teramoto, Takashi Ikeda, Yusuke Adachi, Yuki Ugajin, Shingo Hamada, Hiroya Ito
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Patent number: D870877Type: GrantFiled: January 31, 2018Date of Patent: December 24, 2019Assignee: Mitsubishi Electric CorporationInventors: Takuya Teramoto, Takashi Ikeda, Yusuke Adachi, Yuki Ugajin, Shingo Hamada, Hiroya Ito
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Patent number: D871563Type: GrantFiled: June 12, 2019Date of Patent: December 31, 2019Assignee: Mitsubishi Electric CorporationInventors: Takuya Teramoto, Takashi Ikeda, Yusuke Adachi, Yuki Ugajin, Shingo Hamada, Hiroya Ito