Patents by Inventor Yuji Kawano

Yuji Kawano 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).

  • Patent number: 10563768
    Abstract: An internal combustion engine includes an oil seal mounted at a crankshaft of an internal combustion engine body to restrain leakage of oil to an outside of the internal combustion engine, an oil seal fixing member fixed to the internal combustion engine body to fix the oil seal to the internal combustion engine body, and a cover member assembled on a lateral surface portion of the internal combustion engine body in a direction in which the crankshaft extends, the cover member covering the oil seal fixing member from a side opposite to the internal combustion engine body, the oil seal fixing member being fixed to the internal combustion engine body at a fixing position which is provided at an inner side than an outer edge portion of the cover member fastened to the internal combustion engine body.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: February 18, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Ichiro Kawano, Yuji Iwata, Akihiro Katsumata
  • Publication number: 20200011944
    Abstract: A magnetic characteristic measuring apparatus measures a magnetic characteristic of a sample having a core wound by a primary coil and a secondary coil with high accuracy at high frequency. The apparatus includes: an air-core coil wound by a primary coil and a secondary coil; and a capacitor. The primary coil of the sample, the primary coil of the air-core coil and the capacitor are serially connected, and the capacitance CL of the capacitor is selected as 1/3?2La?CL?1/?2La, wherein La is an inductance of the air-core coil at a frequency ?/2n.
    Type: Application
    Filed: June 25, 2019
    Publication date: January 9, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Hiroyasu KAWANO, Yuji Uehara, Hirotaka Oshima
  • Patent number: 10525393
    Abstract: The present invention is a filter mechanism provided in a pump or the like, and the purpose thereof is to provide a filter mechanism that can eliminate foreign matter adhering to the surface of a filter and thereby can prevent clogging of filters because of foreign matter. According to the present invention, an area toward the inside in the direction of the radius of the filter is linked to an intake opening (235) of the pump (for example, a trochoid pump (22)) and, via the pump (22) to a pump ejection opening (trochoid pump ejection opening (215)), and an area between a filter (5) and (an inside wall surface (3i) of) a first casing (3) is linked to a low-pressure ejection opening (discharge opening (237)) for a working fluid.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: January 7, 2020
    Assignee: NIPPON OIL PUMP CO., LTD.
    Inventor: Yuji Kawano
  • Patent number: 10407758
    Abstract: A steel for oil country tubular goods includes, as a chemical composition, by mass %, C, Si, Mn, Al, Mo, P, S, O, N, and a balance containing Fe and impurities, wherein a full width at half maximum HW of a crystal plane corresponding to a (211) crystal plane of an ? phase and a carbon content expressed in mass % in the chemical composition satisfy HW×C1/2?0.38, the carbon content and a molybdenum content expressed in mass % in the chemical composition satisfy C×Mo?0.6, a number of M2C carbides having a hexagonal crystal structure and having an equivalent circle diameter of 1 nm or more is 5 pieces or more per one square micron, and an yield strength is 758 MPa or more.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: September 10, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tomohiko Omura, Yuji Arai, Kaori Kawano, Akihiro Sakamoto, Kazuo Okamura, Kenji Yamamoto, Keiichi Kondo, Koji Nagahashi, Masanao Seo
  • Publication number: 20190265089
    Abstract: In order to achieve at least one of size reduction and high accuracy by maintaining the reliability of the thermal detection sensor in the thermal detection sensor in the flow state of the fluid to be detected, based on a heat transfer amount from the heating resistor element to the fluid to be detected by heat exchange between the fluid to be detected and the heating resistor element via the flattened film, the thermal type detection sensor for detecting a flow state of the fluid to be detected, and wherein a sidewall covering a sidewall of the heating resistor element and blocking physical contact between the heating resistor element and the flattened film is provided between the heating resistor element and the flattened film, and the sidewall suppresses fluctuation in electric resistance of the heating resistor element due to silicidation of the heating resistor element.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 29, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yui NAKAOKA, Takaki SUGINO, Shinichi HOSOMI, Yuji KAWANO
  • Patent number: 10378560
    Abstract: A hydraulic system for a work machine includes a first switch valve and a first return circuit. The first switch valve is switchable between a confluent position and an isolation position. The first switch valve is switched to the confluent position such that a first operation fluid tube is connected to a second operation fluid tube and a first transmission fluid tube is connected to a second transmission fluid tube. The first switch valve is switched to the isolation position such that the first operation fluid tube is disconnected from the second operation fluid tube and the first operation fluid tube is disconnected from the second operation fluid tube.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: August 13, 2019
    Assignees: KUBOTA CORPORATION, KYB CORPORATION
    Inventors: Yoshimitsu Tanaka, Kunihiko Bito, Tsukasa Haraguchi, Toshiaki Otani, Yuji Kawano, Masaru Kumatani, Junki Maeda, Shoichi Kawano, Hitoshi Iwamura, Teruo Kunizawa, Takehiro Wakasugi, Akio Matsuura
  • Patent number: 10344452
    Abstract: A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: July 9, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Yamashita, Hiroaki Kurachi, Masahiro Kuroda, Hiroyuki Anami, Toshihiko Takemura, Satoshi Tajima, Kunihiro Suzuki, Hayato Kawano, Hideo Imai
  • Patent number: 10211173
    Abstract: A pad electrode such that a conductive film is used as the pad electrode in a semiconductor device has an object of preventing Al corrosion and improving Au bonding wire durability. A semiconductor device according to the invention includes a conductive film of Al or having Al as a main component on which a signal processing circuit and a pad electrode portion are formed, a metal film formed on the conductive film, and a protective film formed on the metal film, wherein a metal film region in which atoms derived from the metal film are implanted is formed on a surface of the conductive film exposed by an opening formed in one portion of the protective film and the metal film, and adopted as the pad electrode.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: February 19, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yui Nakaoka, Hirobumi Matsui, Shinichi Hosomi, Yuji Kawano
  • Patent number: 10186550
    Abstract: A sensor device module comprises: a substrate having a sensor element covered with a protective film, an integrated circuit formed on the substrate, and a bonding pad part formed on the substrate; wherein the integrated circuit and the sensor element are connected at a contact part, and the sensor element and the contact part have a metal thin film layer which consists of first metal layers and second metal layers, an insulating film which is formed on the metal thin film layer and made from the same material as the protective film, and an exfoliation sacrifice layer which is formed on the insulating film and in contact with the protective film, further wherein an upper most film or a lower most film of the exfoliation sacrifice layer is made from the same material as an upper most film of the metal thin film layer.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: January 22, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hirobumi Matsui, Yuji Kawano, Shinichi Hosomi
  • Patent number: 10106958
    Abstract: A working machine includes a machine body, an operation fluid tank mounted on the machine body, a hydraulic device to be operated by an operation fluid supplied from the operation fluid tank. A valve unit includes a plurality of control valves to control the hydraulic device. The control valves are arranged along a horizontal direction. A switch valve is to be connected to the control valves. A first tube member includes a first fluid tube to connect the control valve and the switch valve to each other and supports the switch valve above the control valve.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: October 23, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Daisuke Matsumiya, Kiyoshi Matsui, Teruo Kunizawa, Fukusui Rin, Shigeru Kobayashi, Koji Nagahama, Yuji Kawano, Tsukasa Haraguchi
  • Publication number: 20180229172
    Abstract: The present invention is a filter mechanism provided in a pump or the like, and the purpose thereof is to provide a filter mechanism that can eliminate foreign matter adhering to the surface of a filter and thereby can prevent clogging of filters because of foreign matter. According to the present invention, an area toward the inside in the direction of the radius of the filter is linked to an intake opening (235) of the pump (for example, a trochoid pump (22)) and, via the pump (22) to a pump ejection opening (trochoid pump ejection opening (215)), and an area between a filter (5) and (an inside wall surface (3i) of) a first casing (3) is linked to a low-pressure ejection opening (discharge opening (237)) for a working fluid.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Applicant: Nippon Oil Pump Co., Ltd.
    Inventor: Yuji KAWANO
  • Patent number: 10040013
    Abstract: The present invention is a filter mechanism provided in a pump or the like, and the purpose thereof is to provide a filter mechanism that can eliminate foreign matter adhering to the surface of a filter and thereby can prevent clogging of filters because of foreign matter. According to the present invention, an area toward the inside in the direction of the radius of the filter is linked to an intake opening (235) of the pump (for example, a trochoid pump (22)) and, via the pump (22) to a pump ejection opening (trochoid pump ejection opening (215)), and an area between a filter (5) and (an inside wall surface (3i) of) a first casing (3) is linked to a low-pressure ejection opening (discharge opening (237)) for a working fluid.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: August 7, 2018
    Assignee: NIPPON OIL PUMP CO., LTD.
    Inventor: Yuji Kawano
  • Publication number: 20180145111
    Abstract: A sensor device module comprises: a substrate having a sensor element covered with a protective film, an integrated circuit formed on the substrate, and a bonding pad part formed on the substrate; wherein the integrated circuit and the sensor element are connected at a contact part, and the sensor element and the contact part have a metal thin film layer which consists of first metal layers and second metal layers, an insulating film which is formed on the metal thin film layer and made from the same material as the protective film, and an exfoliation sacrifice layer which is formed on the insulating film and in contact with the protective film, further wherein an upper most film or a lower most film of the exfoliation sacrifice layer is made from the same material as an upper most film of the metal thin film layer.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 24, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hirobumi MATSUI, Yuji KAWANO, Shinichi HOSOMI
  • Publication number: 20170328778
    Abstract: In a thermal infrared detector having trench structures, at least one sensor element is provided between the trench structures, an etching hole through which the sensor element is hollowed out and thereby thermally insulated is provided in a substrate rear surface or on the periphery of a pixel area, and an opening portion is provided below the pixel area.
    Type: Application
    Filed: November 8, 2016
    Publication date: November 16, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Satoi KOBAYASHI, Takaki SUGINO, Takafumi HARA, Yuji KAWANO
  • Publication number: 20170284425
    Abstract: A hydraulic system for a work machine includes a first switch valve and a first return circuit. The first switch valve is switchable between a confluent position and an isolation position. The first switch valve is switched to the confluent position such that a first operation fluid tube is connected to a second operation fluid tube and a first transmission fluid tube is connected to a second transmission fluid tube. The first switch valve is switched to the isolation position such that the first operation fluid tube is disconnected from the second operation fluid tube and the first operation fluid tube is disconnected from the second operation fluid tube.
    Type: Application
    Filed: December 27, 2016
    Publication date: October 5, 2017
    Applicant: KUBOTA CORPORATION
    Inventors: Yoshimitsu TANAKA, Kunihiko BITO, Tsukasa HARAGUCHI, Toshiaki OTANI, Yuji KAWANO, Masaru KUMATANI, Junki MAEDA, Shoichi KAWANO, Hitoshi IWAMURA, Teruo KUNIZAWA, Takehiro WAKASUGI
  • Patent number: 9766095
    Abstract: A magnetized scale (1a) in which magnetic pole pairs each formed of a first magnetic portion (11a) and a second magnetic portion (12a) having different magnetic properties are arranged with a period of a magnetic pole pair width 2?, and a magnetosensitive device (2) in which n magnetosensitive elements (21a to 21e) are arranged with a magnetosensitive element pitch P so that ?=nP may be established are arranged so as to be opposed to each other with a predetermined air gap therebetween. Output values output from the n magnetosensitive elements (21a to 21e) in parallel are analyzed to calculate a relative position between the magnetosensitive device (2) and the magnetized scale (1a) as a position detection resolution of ?/n.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: September 19, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takafumi Hara, Yuji Kawano
  • Patent number: 9631259
    Abstract: A method allowing production of high-purity perrhenic acid from rhenium sulfide by applying pyrometallurgical process is provided.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 25, 2017
    Assignee: PAN PACIFIC COPPER CO., LTD.
    Inventors: Ikunobu Sumida, Yuji Kawano, Makoto Hamamoto
  • Patent number: 9624561
    Abstract: A method for allowing production of high-purity perrhenic acid from crude rhenium sulfide by applying a dry process is provided. A method for producing an aqueous solution of perrhenic acid includes 1) a step for roasting rhenium sulfide under an oxygen-containing gas to collect gasified rhenium oxide; 2) a step for cooling and solidifying the gasified rhenium oxide while keeping sulfur oxide entrained in the gasified rhenium oxide a gaseous state, and subsequently performing solid-gas separation, thereby improving purity of rhenium oxide; and 3) a step for dissolving the solidified rhenium oxide into water, or heating and gasifying the solidified rhenium oxide and then dissolving the gasified rhenium oxide into water, to obtain the aqueous solution of perrhenic acid.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 18, 2017
    Assignee: PAN PACIFIC COPPER CO., LTD.
    Inventors: Ikunobu Sumida, Yuji Kawano, Makoto Hamamoto
  • Publication number: 20170067463
    Abstract: The purpose of the present invention is to suppress the occurrence of unevenness in a rotor of an internal gear pump, suppress the formation of gaps between the end surfaces (side surfaces) of an inner rotor and an outer rotor, and to prevent a decline in volume efficiency. Thus, the pump device of the present invention includes an internal gear pump (10), in which an inner rotor (13) is inscribed to an outer rotor (12), and includes a plate member (7) which is provided to an end surface of the rotors. The plate member (7) is formed of a material having high hardness, has a shape that does not block a suction port (150), has a through-hole (73) formed therein, and has O-ring grooves (71,72), which each have a continuous shape and house an O-ring formed therein.
    Type: Application
    Filed: February 25, 2015
    Publication date: March 9, 2017
    Applicant: NIPPON OIL PUMP CO., LTD.
    Inventor: Yuji KAWANO
  • Patent number: 9566681
    Abstract: A coolant supply device and supply method that can appropriately control the spraying of coolant using a single parameter. A pump (101) supplies coolant to a tool (D), and a measurement device (22) measures the discharge pressure of the pump (101). A control device (50) has a function for determining, from the rotation rate of the pump (101), the coolant flow path diameter for the tool (D) and the target value for the pump discharge pressure (target pressure) when the tool (D) is drilling.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 14, 2017
    Assignee: NIPPON OIL PUMP CO., LTD.
    Inventor: Yuji Kawano