Patents by Inventor Yuji Fujita

Yuji Fujita 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: 10871655
    Abstract: An image display apparatus 100 for a vehicle is provided with: an image display unit 2 that has a light source and a display element and outputs image light; a mirror 3 that reflects the image light output by the image display unit 2 toward a windshield 7; a mirror drive unit 4 that changes the angle and position of the mirror 3; and a control unit 10 that determines amounts of change in the angle and position of the mirror and controls the mirror drive unit 4. The control unit 10 makes determinations of the amount of change for the angle and position of the mirror in association with each other such that the image is visible even if the position of the driver's eyes 8 changes and the display state of the image with respect to the driver does not change.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: December 22, 2020
    Assignees: MAXELL, LTD., HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD.
    Inventors: Yuki Nagano, Souta Sato, Yuji Fujita, Takumi Nakada, Kazuomi Kaneko
  • Publication number: 20200395314
    Abstract: An object is to provide a technique capable of suppressing a corrosion of a first electrode and a second electrode. A semiconductor element includes a semiconductor substrate, an Al electrode, a polyimide member selectively disposed on the Al electrode, and an Ni electrode. The polyimide member includes a protruding part which protrudes in a plane direction of an upper surface of the Al electrode and which has a lower portion having contact with the Al electrode in a cross-sectional view, in at least part of a peripheral part of the polyimide member in a top view. The Ni electrode is disposed on the Al electrode and the protruding part.
    Type: Application
    Filed: March 8, 2018
    Publication date: December 17, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Motoru YOSHIDA, Jun FUJITA, Yuji SATO
  • Publication number: 20200363237
    Abstract: A rotation angle detection apparatus includes a driving gear, two driven gears, two sensors, and an arithmetic circuit. The two driven gears have different numbers of teeth and each are in mesh with the driving gear. The arithmetic circuit is configured to compute a rotation angle of the driving gear based on the rotation angles of the two driven gears, detected through the two sensors. The arithmetic circuit is configured to, when a relationship between the rotation angles of the two driven gears, detected through the two sensors, is different from the relationship when the rotation angle of the driving gear, computed by the arithmetic circuit, is normal, detect an abnormality in the rotation angle of the driving gear, computed by the arithmetic circuit.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 19, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Shouta ZOUZA, Yuuki NAKASHIMA, Yuji FUJITA, Toshihiro TAKAHASHI, Xavier PALANDRE
  • Publication number: 20200361524
    Abstract: A motor control device is configured to control a motor as a dynamic force source depending on a position of a rotation detection object that rotates while interlocking with the motor, the motor and the rotation detection object being included in a mechanical apparatus including a plurality of constituent elements that interlock with each other. The motor control device includes a computation circuit configured to compute an absolute rotation angle of the rotation detection object, using a relative rotation angle of a first constituent element of the mechanical apparatus that is detected through a relative angle sensor provided in the mechanical apparatus, and a rotation number conversion value resulting from converting an absolute rotation angle of a second constituent element of the mechanical apparatus that is detected through an absolute angle sensor provided in the mechanical apparatus, into a rotation number of the first constituent element.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 19, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Shouta ZOUZA, Yuuki NAKASHIMA, Yuji FUJITA, Toshihiro TAKAHASHI, Xavier PALANDRE
  • Patent number: 10816084
    Abstract: A vehicle power transmission device includes: a differential mechanism and provided with a through-hole in an outer circumferential surface, a pair of pinion gears respectively fitted to both ends of a pinion shaft, and a pair of side gears rotatably supported by the differential case and meshed with the pinion gears; and a baffle plate that includes an oil passage component functioning as an oil passage for supplying a lubricating oil for lubricating the pinion gears and the side gears and that is fixedly disposed to cover an outer circumference of the differential case. The oil passage component is provided with an opening portion allowing the lubricating oil in the oil passage to flow out downward, and the opening portion is disposed above the pinion shaft and between a pair of inner-circumferential-side end surfaces of the pair of the pinion gears when the pinion shaft is horizontal.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 27, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryohei Imanishi, Hirofumi Fujita, Yuji Inoue
  • Publication number: 20200330933
    Abstract: An aerator includes an air supply chamber into which air is supplied by an air supply pump, a water flow channel connected to a water feed pipe, and a gas-permeable porous body having multiple gas discharge pores and separating the air supply chamber and the water flow channel. Air in the air supply chamber is pushed into water in the water flow channel through the gas discharge pores of the porous body due to discharge pressure of the air supply pump. In the porous body, inner surfaces of the gas discharge pores are coated with a coating film made of a water repellent having such a wettability that a water droplet contact angle is 80 degrees or more and preferably 90 degrees or more, on a smooth flat film surface.
    Type: Application
    Filed: November 13, 2019
    Publication date: October 22, 2020
    Applicant: NANO-SCIENCE LABORATORY CORPORATION
    Inventors: Yuji FUJITA, Masafumi KOBAYASHI, Masayuki SHIMADA, Tsuyoshi KIRIISHI
  • Publication number: 20200331522
    Abstract: An actuator that applies force to a member associated with steering, and a control device that controls the actuator, have duplex configuration. First and second control devices compute the same controlled variable as first and second controlled variables, respectively. In a normal mode, the control device controls the actuator according to the first controlled variable. The first and second control devices send and receive respectively computed controlled variables to and from each other via communications. When a discrepancy arises between the first and second controlled variables, or an abnormality occurs in communications between the first and second control devices, the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices control the first and second actuators, according to the first and second controlled variables, respectively.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 22, 2020
    Applicants: Toyota Jidosha Kabushiki Kaisha, JTEKT Corporation, Denso Corporation
    Inventors: Masaharu Yamashita, Atsushi Sato, Masataka Okuda, Yosuke Yamashita, Shintaro Takayama, Shunsuke Hiromasa, Toshiyuki Mikida, Shoji Kubota, Yuji Fujita, Kenichi Abe, Toshimitsu Sakai
  • Patent number: 10800448
    Abstract: Provided is a steering control apparatus configured to suppress the occurrence of abnormalities in components in respective systems at the same timing. A first assist torque calculation circuit calculates a first command value and a second command value based on a steering torque. A first current feedback control circuit calculates a control signal by using the first command value. A second current feedback control circuit calculates a control signal by using the second command value. When the steering torque is equal to or smaller than a steering torque threshold, the first assist torque calculation circuit executes calculation so that the first command value is larger than the second command value. After the steering torque exceeds the steering torque threshold, the first assist torque calculation circuit executes calculation so that the first command value is equal to the second command value.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: October 13, 2020
    Assignee: JTEKT CORPORATION
    Inventors: Yuji Fujita, Hiroshi Kawamura, Xavier Joseph Palandre
  • Patent number: 10804009
    Abstract: A twinax cable 100 includes a twinax structure, the twinax structure including: a signal wire pair, the signal wire pair including a pair of signal wires formed of a first signal wire and a second signal wire, and an insulating layer configured to cover the pair of signal wires; a drain wire; and a shield tape arranged on the outer circumferential side of the insulating layer to cover the signal wire pair and the drain wire. The insulating layer is mainly composed of polyethylene. The insulating layer includes not less than 30 ppm and not more than 4000 ppm of a hindered phenol-based antioxidant. A dielectric tangent tan ? of the insulating layer at the time of application of a high-frequency electric field having a frequency of 10 GHz is not more than 3.0×10?4.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: October 13, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Nayu Yanagawa, Shinya Nishikawa, Taro Fujita, Yuto Kobayashi, Masaki Hayakawa, Atsushi Tsujino, Yuji Ochi
  • Publication number: 20200303679
    Abstract: A light emitting apparatus (10) includes a substrate (100), an insulating layer (160), a light emitting element (102), a coating film (140), and a structure (150). The insulating layer (160) is formed over one surface of the substrate (100), and includes an opening (162). The light emitting element (102) is formed in the opening (162). The coating film (140) is formed over the one surface of the substrate (100), and covers a portion of the light emitting element (102), the insulating layer (160), and the one surface of the substrate (100). The coating film (140) does not cover another portion of the substrate (100) (for example, a portion of an end portion: hereinafter, referred to as a first portion). The structure (150) is located between the first portion of the substrate (100) and the insulating layer (160). The coating film (140) also covers the insulating layer (160).
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Inventors: Koji FUJITA, Shinsuke TANAKA, Yuji SAITO, Shinji NAKAJIMA
  • Patent number: 10772983
    Abstract: A perfume retainer includes a main body and an air flow channel located in the main body. The air flow channel includes: a retainer space configured to retain a perfume, a first opening located connecting a first end of the retainer space to a space outside of a first end of the air flow channel, and a second opening connecting a second end of the retainer space to a space outside of a second end of the air flow channel. The retainer space includes a plurality of segment regions arranged adjacent each other such that an external wall of one of the plurality of segment regions is in contact with an external wall of another of the plurality of segment regions. The plurality of segment regions increase a surface area of the air flow channel without increasing a volume of space of the air flow channel.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 15, 2020
    Assignee: Sony Corporation
    Inventors: Shuji Fujita, Tsunetoshi Samukawa, Koya Nomoto, Yuji Ishigaki, Hideki Nakano, Keita Tanaka, Naoyuki Suzuki
  • Patent number: 10769831
    Abstract: A head up display superimposes a virtual image on an actual view in accordance with a traveling status of a vehicle. Vehicle information containing a lean of the vehicle in a pitch direction is detected by a first posture sensor, and a lean in a roll direction is detected by a second posture sensor. A controller controls display of video on the basis of the vehicle information. A mirror reflects the video to project the video to a windshield or combiner. A mirror driver changes an angle and/or a position of the mirror. At least one of a display state of the virtual image in a display area for the video or the angle and/or the position of the mirror via the mirror driver is adjusted by the controller on the basis of the lean in the pitch direction and/or the lean in the roll direction.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: September 8, 2020
    Assignee: MAXELL, LTD.
    Inventors: Nozomu Shimoda, Yuji Fujita, Takeshi Arakawa, Akio Misawa
  • Publication number: 20200273716
    Abstract: A semiconductor device is provided that can minimize the occurrence of poor joining between a copper electrode and a copper wire. The semiconductor device includes a semiconductor substrate; a copper electrode layer formed on the semiconductor substrate; a metallic thin-film layer formed on the copper electrode layer for preventing oxidation of the copper electrode layer, the metallic thin-film layer having an opening through which the copper electrode layer is exposed, the opening being located on an inner side relative to an outer periphery of the metallic thin-film layer; and an interconnection member containing copper as a main component, the interconnection member including a joining region covering the opening, the interconnection member being joined to the metallic thin-film layer and joined to the copper electrode layer in the opening.
    Type: Application
    Filed: April 12, 2018
    Publication date: August 27, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji SATO, Tsuyoshi URAJI, Jun FUJITA, Motoru YOSHIDA
  • Patent number: 10746583
    Abstract: A water content measuring device measures water content of an object to be measured. The water content measuring device includes two plate members that are disposed facing each other, a current generating unit, a measuring unit, and an arithmetic processing unit. The current generating unit generates current supplied between the two plate members. The measuring unit measures electrostatic capacitance generated by the current supplied between the two plate members. The arithmetic processing unit is configured to convert the electrostatic capacitance measured by the measuring unit to water content. Two plate members each have a shape or are disposed such that at least two points on a leading edge of the object enter between the two plate members at different timings in a direction perpendicular to a passing direction in which the object passes through the two plate members.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 18, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yohei Kushida, Keita Maejima, Hiroshi Okamura, Natsuko Ishizuka, Hayato Fujita, Masaki Tsugawa, Yuji Ikeda
  • Publication number: 20200238230
    Abstract: A fine bubble generating apparatus has a storage tank, a liquid feeding unit suctioning and feeding liquid stored in the storage tank, a gas discharge unit discharging gas into the liquid which is being fed by the liquid feeding unit, and a storage tank. The gas discharge unit includes a gas discharge member with pores having pore diameters of 1.5 ?m or less, and a base member having a groove formed in a surface contacting the gas discharge surface of the gas discharge member. The liquid feeding unit moves the liquid along the gas discharge surface of the gas discharge member by causing the liquid to flow in a flow channel enclosed by the gas discharge surface of the gas discharge member and the groove of the base member such that a velocity relative to the gas discharge member is not less than 1 msec.
    Type: Application
    Filed: December 25, 2018
    Publication date: July 30, 2020
    Applicant: NANO-SCIENCE LABORATORY CORPORATION
    Inventors: Yuji FUJITA, Masafumi KOBAYASHI, Tsuyoshi KIRIISHI
  • Patent number: 10700306
    Abstract: A light emitting apparatus (10) includes a substrate (100), an insulating layer (160), a light emitting element (102), a coating film (140), and a structure (150). The insulating layer (160) is formed over one surface of the substrate (100), and includes an opening (162). The light emitting element (102) is formed in the opening (162). The coating film (140) is formed over the one surface of the substrate (100), and covers a portion of the light emitting element (102), the insulating layer (160), and the one surface of the substrate (100). The coating film (140) does not cover another portion of the substrate (100) (for example, a portion of an end portion: hereinafter, referred to as a first portion). The structure (150) is located between the first portion of the substrate (100) and the insulating layer (160). The coating film (140) also covers the insulating layer (160).
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 30, 2020
    Assignee: PIONEER CORPORATION
    Inventors: Koji Fujita, Shinsuke Tanaka, Yuji Saito, Shinji Nakajima
  • Patent number: 10697078
    Abstract: A method of forming Cu plating of the present invention includes: a first step of forming a Cu seed layer on one of surfaces of a substrate such that an average grain size is 50 nm or more and 300 nm or less; a second step of forming an oxide film on a surface of the Cu seed layer in an oxygen atmosphere; a third step of removing a part of the oxide film; and a fourth step of feeding power to the Cu seed layer to form Cu plating on a surface of the oxide film on the Cu seed layer by electrolytic plating.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: June 30, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Sato, Jun Fujita, Motoru Yoshida, Kazuyo Endo
  • Publication number: 20200198694
    Abstract: A steering system includes a prioritized torque sensor, a redundant torque sensor, a controller, a first signal line, a second signal line, and a common signal line. Each of the first signal line and the second signal line connects the prioritized torque sensor and the controller. The common signal line connects the redundant torque sensor and the controller. The prioritized torque sensor is configured to transmit, via the first signal line, a first prioritized detection signal. The prioritized torque sensor is configured to transmit, via the second signal line, a second prioritized detection signal. The redundant torque sensor is configured to transmit, via the common signal line, a first redundant detection signal and a second redundant detection signal.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 25, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Hiroshi KAWAMURA, Yuji FUJITA
  • Publication number: 20200198695
    Abstract: A motor controller is configured to control a motor including a plurality of winding groups. The motor controller includes a plurality of processors. Each of the processors is configured to independently control supply of driving electric power to each of the winding groups. When an abnormality occurs in which a torque to be generated in one of the winding groups is smaller than an individual rated torque and when a target overall torque is larger than a total of the individual rated torque for the winding group in which the abnormality does not occur, the processor, controlling supply of driving electric power to the winding group in which the abnormality does not occur, out of the plurality of processors controls supply of the driving electric power such that the winding group generate a torque larger than the individual rated torque.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Hiroshi KAWAMURA, Yuji FUJITA
  • Publication number: 20200198696
    Abstract: In a control device for a steering mechanism, the steering mechanism includes a motor that includes a plurality of coils. The plurality of coils include a first coil and a second coil. The control device includes a first control system and a second control system configured to compute a command value for torque of the motor to be applied to the steering mechanism. The first control system and the second control system are each configured to control power supply to the plurality of coils of the motor based on the command value. The first control system includes a first microcomputer that has first characteristics, and the second control system includes a second microcomputer that has second characteristics that are different from the first characteristics.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Hiroshi KAWAMURA, Yuji FUJITA