Patents by Inventor Daiki ITOU
Daiki ITOU 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: 11933023Abstract: A plus-side main connection line (27) connects electrical equipment (21), (22) to a plus terminal (26A) of a battery (26). A plus-side isolating switch (28) is provided in the plus-side main connection line (27) to connect or disconnect the electrical equipment (21), (22) and or from the plus terminal (26A) of the battery (26). A plus-side auxiliary connection line (30) connects a urea SCR controller (25) to the plus terminal (26A) of the battery (26) in a position upstream of the plus-side isolating switch (28). A minus-side main connection line (32) connects a minus terminal (26B) of the battery (26) to ground. A minus-side isolating switch (33) is provided in the minus-side main connection line (32) to connect or disconnect the minus terminal (26B) of the battery (26) and or from ground.Type: GrantFiled: December 13, 2019Date of Patent: March 19, 2024Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Hisashi Tago, Takenori Hiroki, Tomoya Murazumi, Hironori Itou, Daiki Machida, Junya Matsumoto
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Patent number: 11370476Abstract: A drive device includes a motor, a control board, a connector located between the motor and the control board in a predetermined direction, and a solder connecting a motor wire and the control board. The control board has a through-hole opening on an upper side and on a lower side. The connector includes a support portion that protrudes toward the control board such that a tip surface of the support portion is in contact with the lower side of the control board, a guide portion that has a guide hole through which the motor wire passes, the guide hole opening on a lower side and on an upper side. The upper side of the connector is spaced from the lower side of the control board in the predetermined direction. A fillet of the solder is formed on both the upper side and the lower side of the control board.Type: GrantFiled: May 14, 2020Date of Patent: June 28, 2022Assignee: DENSO CORPORATIONInventors: Daiki Itou, Naohiro Yamamoto
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Publication number: 20200361519Abstract: A drive device includes a motor, a control board, a connector located between the motor and the control board in a predetermined direction, and a solder connecting a motor wire and the control board. The control board has a through-hole opening on an upper side and on a lower side. The connector includes a support portion that protrudes toward the control board such that a tip surface of the support portion is in contact with the lower side of the control board, a guide portion that has a guide hole through which the motor wire passes, the guide hole opening on a lower side and on an upper side. The upper side of the connector is spaced from the lower side of the control board in the predetermined direction. A fillet of the solder is formed on both the upper side and the lower side of the control board.Type: ApplicationFiled: May 14, 2020Publication date: November 19, 2020Inventors: Daiki Itou, Naohiro Yamamoto
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Patent number: 10826460Abstract: A multiplexer includes: a filter located on a surface of a substrate and including first series and parallel resonators and a first wiring line; and another filter located on another surface of another substrate and including second series and parallel resonators and a second wiring line, each of first resonators among the second series and parallel resonators overlapping with the first series and parallel resonators, and/or the first wiring line, each of second resonators other than the first resonators among the second series and parallel resonators overlapping with none of the first series and parallel resonators and the first wiring line, when capacitances of series and parallel resonators in first basic sections including the first resonators are represented by Cs1 and Cp1, and capacitances of series and parallel resonators in second basic sections not including the first resonators are represented by Cs2 and Cp1, Cp1/Cs1 being less than Cp2/Cs2.Type: GrantFiled: December 28, 2018Date of Patent: November 3, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Daiki Itou, Yasuhisa Okamoto, Takuma Kuroyanagi, Fumiaki Isaka
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Patent number: 10677268Abstract: In a construction machine with a hydraulic pilot type hydraulic control device, occurrence of jerking is prevented. A hydraulic excavator 1 having hydraulic pumps 51L and 51R, travel motors 22L and 22R, traveling operating levers 34L and 34R, a pilot pump 54, hydraulic pilot valves 55La, 55Lb, 55Ra, and 55Rb, and directional control valves 53L and 53R includes: changeover switches 35L and 35R which change the operating mode of the traveling operating levers 34L and 34R; pilot pressure adjusting devices 5L and 5R which adjust the pilot pressure applied to the directional control valves 53L and 53R; and pilot pressure sensors 56La, 56Lb, 56Ra, and 56Rb. The pilot pressure adjusting devices apply the pilot pressure at the time when the operating mode of the traveling operating levers 34L and 34R is changed to a control mode, to the directional control valves 53L and 53R.Type: GrantFiled: February 20, 2018Date of Patent: June 9, 2020Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Daiki Itou, Akihiro Narazaki, Katsuaki Kodaka
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Publication number: 20190260351Abstract: A multiplexer includes: a filter located on a surface of a substrate and including first series and parallel resonators and a first wiring line; and another filter located on another surface of another substrate and including second series and parallel resonators and a second wiring line, each of first resonators among the second series and parallel resonators overlapping with the first series and parallel resonators, and/or the first wiring line, each of second resonators other than the first resonators among the second series and parallel resonators overlapping with none of the first series and parallel resonators and the first wiring line, when capacitances of series and parallel resonators in first basic sections including the first resonators are represented by Cs1 and Cp1, and capacitances of series and parallel resonators in second basic sections not including the first resonators are represented by Cs2 and Cp1, Cp1/Cs1 being less than Cp2/Cs2.Type: ApplicationFiled: December 28, 2018Publication date: August 22, 2019Applicant: TAIYO YUDEN CO., LTD.Inventors: Daiki ITOU, Yasuhisa OKAMOTO, Takuma KUROYANAGI, Fumiaki ISAKA
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Publication number: 20190219071Abstract: In a construction machine with a hydraulic pilot type hydraulic control device, occurrence of jerking is prevented. A hydraulic excavator 1 having hydraulic pumps 51L and 51R, travel motors 22L and 22R, traveling operating levers 34L and 34R, a pilot pump 54, hydraulic pilot valves 55La, 55Lb, 55Ra, and 55Rb, and directional control valves 53L and 53R includes: changeover switches 35L and 35R which change the operating mode of the traveling operating levers 34L and 34R; pilot pressure adjusting devices 5L and 5R which adjust the pilot pressure applied to the directional control valves 53L and 53R; and pilot pressure sensors 56La, 56Lb, 56Ra, and 56Rb. The pilot pressure adjusting devices apply the pilot pressure at the time when the operating mode of the traveling operating levers 34L and 34R is changed to a control mode, to the directional control valves 53L and 53R.Type: ApplicationFiled: February 20, 2018Publication date: July 18, 2019Inventors: Daiki ITOU, Akihiro NARAZAKI, Katsuaki KODAKA