Patents by Inventor Tsuyoshi Kanda

Tsuyoshi Kanda 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: 11931847
    Abstract: A magnet chuck has a piston assembly including a tube shaped permanent magnet and a core yoke able to move on the interior of a cylinder tube. The permanent magnet is provided on the outer periphery of the core yoke, is magnetized in the radial direction, and a magnetic sensor is attached to the side surface of the cylinder tube.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 19, 2024
    Assignee: SMC CORPORATION
    Inventors: Hisashi Yajima, Motohiro Sato, Tsuyoshi Sasaki, Koji Hara, Kouichirou Kanda
  • Patent number: 10990180
    Abstract: A tactile presentation device includes: a substrate that has a lower surface on which a vibration generation element is mounted, and an upper surface opposite to the lower surface; a first adhesive layer that is disposed on the upper surface of the substrate; a first elastic layer that is disposed on the first adhesive layer, and has a lower elastic modulus than an elastic modulus of the substrate; wherein the elastic modulus of the first elastic layer corresponding to a frequency of an ultrasonic band of the vibration generation element is equal to or more than 1 GPa.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: April 27, 2021
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Fumio Takei, Ayumu Akabane, Tsuyoshi Kanda, Naoki Shimizu
  • Patent number: 10712854
    Abstract: An input device includes: a touch panel; a tactile presentation device that is mounted on the touch panel, and presents a tactile feel; and a control device that detects a position of a finger in accordance with information from the touch panel, controls the tactile presentation device to present the tactile feel in accordance with the position of the finger, and confirms an input value, the input value being the number of times the tactile feel is presented before input confirmation.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: July 14, 2020
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Ayumu Akabane, Tsuyoshi Kanda, Fumio Takei
  • Publication number: 20190302892
    Abstract: A tactile presentation device includes: a substrate that has a lower surface on which a vibration generation element is mounted, and an upper surface opposite to the lower surface; a first adhesive layer that is disposed on the upper surface of the substrate; a first elastic layer that is disposed on the first adhesive layer, and has a lower elastic modulus than an elastic modulus of the substrate; wherein the elastic modulus of the first elastic layer corresponding to a frequency of an ultrasonic band of the vibration generation element is equal to or more than 1 GPa.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 3, 2019
    Applicant: FUJITSU COMPONENT LIMITED
    Inventors: Fumio Takei, Ayumu Akabane, Tsuyoshi Kanda, Naoki Shimizu
  • Publication number: 20190138140
    Abstract: An input device includes: a touch panel; a tactile presentation device that is mounted on the touch panel, and presents a tactile feel; and a control device that detects a position of a finger in accordance with information from the touch panel, controls the tactile presentation device to present the tactile feel in accordance with the position of the finger, and confirms an input value, the input value being the number of times the tactile feel is presented before input confirmation.
    Type: Application
    Filed: October 18, 2018
    Publication date: May 9, 2019
    Applicant: FUJITSU COMPONENT LIMITED
    Inventors: Ayumu Akabane, Tsuyoshi Kanda, Fumio Takei
  • Publication number: 20190042012
    Abstract: A substrate includes: a plurality of wiring patterns arranged to face each other; an electronic component that is disposed between the wiring patterns and has electrodes at both end portions; and a conductive member that connects the wiring patterns to the electrodes, wherein the wiring patterns have such a shape that a distance between the wiring patterns changes in a region where the electronic component is disposed.
    Type: Application
    Filed: June 28, 2018
    Publication date: February 7, 2019
    Applicant: FUJITSU COMPONENT LIMITED
    Inventors: Ayumu AKABANE, Tsuyoshi KANDA, Shailendra Kumar SHAH, Fumio TAKEI
  • Patent number: 8939113
    Abstract: An engine is provided with a variable valve timing device which transmits a rotational force generated by a motor via a motor drive circuit to a cam shaft so as to change a rotational phase of the cam shaft relative to a crank shaft. An ECU cools a motor and a motor drive circuit when the change of the rotational phase stops during the changing of the rotational phase of the cam shaft to a target value is detected. In addition, the lock state is eliminated by driving the motor by the motor drive circuit after cooling the motor device.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: January 27, 2015
    Assignee: Denso Corporation
    Inventors: Tsuyoshi Kanda, Masao Kurisu
  • Publication number: 20120291722
    Abstract: An engine is provided with a variable valve timing device which transmits a rotational force generated by a motor via a motor drive circuit to a cam shaft so as to change a rotational phase of the cam shaft relative to a crank shaft. An ECU cools a motor and a motor drive circuit when the change of the rotational phase stops during the changing of the rotational phase of the cam shaft to a target value is detected. In addition, the lock state is eliminated by driving the motor by the motor drive circuit after cooling the motor device.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 22, 2012
    Applicant: DENSO CORPORATION
    Inventors: Tsuyoshi KANDA, Masao Kurisu
  • Patent number: 8253445
    Abstract: An output circuit includes a first differential pair of transistors driven by a first current source and differentially receiving input signals and a second differential pair of transistors driven by a second current source and differentially receiving first control signals (EMT, EMB). Output pairs of the first and second differential pairs are connected to the differential output terminals. A load resistor element pair is connected between a power supply and the differential output terminals. The output circuit further includes a third differential pair of transistors driven by a third current source and differentially receiving second control signals and a fourth differential pair of transistors driven by a fourth current source and differentially receiving third control signals. An output pair of the third differential pair of transistors is connected between one of the differential output terminals and the power supply.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: August 28, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Tsuyoshi Kanda
  • Publication number: 20110163791
    Abstract: Disclosed is an output circuit that receives an input signal and that outputs a pre-emphasized output signal when an input signal transitions. The output circuit comprises a transistor applying de-emphasis to the output signal and a de-emphasis level control circuit comprising another transistor controlling a de-emphasis level. The transistor applying de-emphasis and the transistor controlling a de-emphasis level are connected in common to a current source and transistor controlling a de-emphasis level is made conductive at a time of de-emphasis to limit a current flowing through the transistor applying de-emphasis to the output signal.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 7, 2011
    Applicant: Renesas Electronics Corporation
    Inventor: Tsuyoshi KANDA
  • Publication number: 20100301905
    Abstract: An output circuit includes a first differential pair of transistors driven by a first current source and differentially receiving input signals and a second differential pair of transistors driven by a second current source and differentially receiving first control signals (EMT, EMB). Output pairs of the first and second differential pairs are connected to the differential output terminals. A load resistor element pair is connected between a power supply and the differential output terminals. The output circuit further includes a third differential pair of transistors driven by a third current source and differentially receiving second control signals and a fourth differential pair of transistors driven by a fourth current source and differentially receiving third control signals. An output pair of the third differential pair of transistors is connected between one of the differential output terminals and the power supply.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 2, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Tsuyoshi Kanda
  • Publication number: 20100248606
    Abstract: A ventilation hole waterproof structure of an on-board component includes an on-board component main body and an attachment member. The main body includes a housing, a ventilation hole, and a waterproof filter. The ventilation hole is provided to the housing extending through the housing to provide communication between an inside and an outside of the housing. The attachment member has a connecting part connected to the main body. The attachment member has an attachment surface that extends from at least an upper end of the connecting part downwardly. The housing has a connecting surface, which is connected to the connecting part, and which is opposed to the attachment surface with a clearance therebetween. The ventilation hole has an outside opening at an external wall surface of the housing. The waterproof filter is fixed to the external wall surface to cover the outside opening.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 30, 2010
    Applicant: DENSO CORPORATION
    Inventor: Tsuyoshi KANDA
  • Patent number: 7744235
    Abstract: In a lighting device, suppose a distance between centers of linear light sources is D and a distance between the linear light sources and a light control member is H and a function representing an outgoing light intensity toward a normal direction at a position coordinate X (light source position shall be X=0) and f(X?D)+f(X)+f(X+D), in a range of ?D/2?X?D/2, a ratio between g(X)min and g(X)max is 0.6 or more, a minimum value Xmin is in a range of ?3.0D?Xmin??0.5D, a maximum value Xmax is in a range of 0.5?Xmax?3.0D, and a cross-sectional shape of a given convex portion in X direction is formed of areas with (2N+1) number of different gradients represented by a certain relationship obtained from D, H and X.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: June 29, 2010
    Assignee: KURARAY Co., Ltd.
    Inventors: Satoko Horikoshi, Ikuo Onishi, Shigeki Kikuyama, Yoshiki Mukoo, Tsuyoshi Kanda
  • Publication number: 20090225538
    Abstract: In a lighting device, suppose a distance between centers of linear light sources is D and a distance between the linear light sources and a light control member is H and a function representing an outgoing light intensity toward a normal direction at a position coordinate X (light source position shall be X=0) and f(X?D)+f(X)+f(X+D), in a range of ?D/2?X?D/2, a ratio between g(X)min and g(X)max is 0.6 or more, a minimum value Xmin is in a range of ?3.0 D?Xmin??0.5 D, a maximum value Xmax is in a range of 0.5?Xmax?3.0 D, and a cross-sectional shape of a given convex portion in X direction is formed of areas with (2N+1) number of different gradients represented by a certain relationship obtained from D, H and X.
    Type: Application
    Filed: June 26, 2006
    Publication date: September 10, 2009
    Applicant: KURARAY CO., LTD.
    Inventors: Satoko Horikoshi, Ikuo Onishi, Shigeki Kikuyama, Yoshiki Mukoo, Tsuyoshi Kanda
  • Publication number: 20090205596
    Abstract: A valve closing side engaging groove is formed in a circumferential surface of a collar of a clutch between an optimum angular position, which implements a most effective valve angle for making the maximum fuel consumption improving effect, and a valve closing side least effective angular position, which implements a valve closing side least effective valve angle. Similarly, a valve opening side engaging recess is formed in the circumferential surface of the collar between the optimum angular position and a valve opening side least effective angular position, which implements a valve opening side least effective valve angle. Each of the grooves is engageable with a roller to securely hold the roller in corporation with a driven-side rotator to limit rotation of the driven-side rotator in a deenergized state of a motor.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 20, 2009
    Applicant: DENSO CORPORATION
    Inventor: Tsuyoshi KANDA
  • Patent number: 7523945
    Abstract: By providing a projection 24 at the root of a seal lip 22, the mechanical loss caused by the seal lip is reduced while restraining the turn-over of the seal lip 22, while maintaining a stable sealing performance by letting the first side surface 24a or the second side surface 24b of this projection 24 exhibit a suction function of returning the fluid that has leaked from the lip tip end of the seal lip 22 to the sealing fluid side O when the shaft and the seal lip 22 are relatively rotated.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: April 28, 2009
    Assignee: NOK Corporation
    Inventor: Tsuyoshi Kanda
  • Publication number: 20070132194
    Abstract: By providing a projection 24 at the root of a seal lip 22, the mechanical loss caused by the seal lip is reduced while restraining the turn-over of the seal lip 22, while maintaining a stable sealing performance by letting the first side surface 24a or the second side surface 24b of this projection 24 exhibit a suction function of returning the fluid that has leaked from the lip tip end of the seal lip 22 to the sealing fluid side O when the shaft and the seal lip 22 are relatively rotated.
    Type: Application
    Filed: September 15, 2004
    Publication date: June 14, 2007
    Inventor: Tsuyoshi Kanda
  • Patent number: 7219640
    Abstract: In a variable air induction apparatus, a valve element is switched between one side to open a first air intake passage and close a second air intake passage, and the other side to open the second air intake passage and to close the first air intake passage. The first air intake passage and the second air intake passage have lengths different from each other. The valve element is fixed on a shaft member to rotate integrally with the shaft. A driving device applies a driving force to rotate the shaft member. An urging device urges the shaft member to rotate the valve element to be switched to any one of the one side and the other side.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 22, 2007
    Assignees: DENSO Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Tsuyoshi Kanda, Yoshichika Yamada, Taisuke Murata, Yasutoshi Kameda, Akira Nakawatase
  • Patent number: 7143743
    Abstract: The throttle position corresponding to the rotational angle of the throttle valve is calculated based on electric signals output from a rotor position detector constituted by three Hall ICs that detect the rotational position of a magnet rotor of a brushless DC motor. A valve position control quantity of the throttle valve is so calculated as to eliminate the difference between the thus calculated valve position and a target valve position. The motor current control quantity of the brushless DC motor is so determined as to eliminate the difference between the calculated valve position and the target valve position. Though the throttle position sensor is omitted, the electric signals output from the rotor position detector are used for calculating both the valve position control quantity and the motor current control quantity.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: December 5, 2006
    Assignee: Denso Corporation
    Inventors: Toshiaki Uda, Tsuyoshi Kanda, Taisuke Murata, Hiroshi Nakamura
  • Publication number: 20060236971
    Abstract: In a variable air induction apparatus, a valve element is switched between one side to open a first air intake passage and close a second air intake passage, and the other side to open the second air intake passage and to close the first air intake passage. The first air intake passage and the second air intake passage have lengths different from each other. The valve element is fixed on a shaft member to rotate integrally with the shaft. A driving device applies a driving force to rotate the shaft member. An urging device urges the shaft member to rotate the valve element to be switched to any one of the one side and the other side.
    Type: Application
    Filed: April 21, 2006
    Publication date: October 26, 2006
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsuyoshi Kanda, Yoshichika Yamada, Taisuke Murata, Yasutoshi Kameda, Akira Nakawatase