Patents by Inventor Tatsuya Kawakami

Tatsuya Kawakami 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).

  • Publication number: 20240111181
    Abstract: An object of the present invention is to provide an optical switch element, an optical switch device, an optical communication system, and an optical computer capable of operating even in a temperature range higher than the NĂ©el temperature. An optical switch element (10) according to the present invention includes a substance including a plurality of transition metal elements having electrons in d-orbitals, and a plurality of anions arranged around each of the plurality of transition metal elements, in which the plurality of transition metal elements are arranged in a lattice form, t2g-orbitals into which the d-orbitals of each of the plurality of transition metal elements are split are connected annularly, and in a state in which the substance does not have a long-range magnetic order, the polarization of signal light (L1) is rotated when control light (C1) is applied.
    Type: Application
    Filed: December 2, 2021
    Publication date: April 4, 2024
    Applicants: TOHOKU UNIVERSITY, CHUO UNIVERSITY
    Inventors: Shinichiro IWAI, Yohei KAWAKAMI, Tatsuya AMANO, Kenya OHGUSHI, Kenji YONEMITSU
  • Publication number: 20240003873
    Abstract: A method for forming a conjugate of a substance of interest and a magnetic particle to which a specific binding substance that has an ability to specifically bind to the substance of interest has been bound, the method including (A1) reacting the substance of interest and the magnetic particles in a reaction solution, in which (A1) includes increasing momentum of the magnetic particles in the reaction solution by changing the magnetic field that is exerted on the magnetic particles.
    Type: Application
    Filed: September 13, 2023
    Publication date: January 4, 2024
    Inventors: Tatsuya KAWAKAMI, Masayuki ONO, Koji TSUJITA, Katsue HORIKOSHI, Yuichi HASEGAWA, Makoto ITONAGA
  • Publication number: 20220365079
    Abstract: A first buffer fluid containing a first bead having fixed to a surface thereof a first antibody that specifically binds to a first antigen is injected into a reaction container, and then a plurality of a second bead having fixed to a surface thereof a second antibody that specifically binds to an optional second antigen, and a biological sample containing an exosome to be analyzed having the first antigen and the second antigen on a surface of the exosome are injected into the reaction container, thereby generating a second buffer fluid. An exosome having the first bead and the second bead bound thereto is collected from the second buffer fluid. The exosome having the first bead and the second bead bound thereto is separated into the first bead, the second bead, and the exosome, and the second bead and the exosome are individually collected.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Inventors: Koji TSUJITA, Masayuki ONO, Makoto ITONAGA, Yuichi HASEGAWA, Katsunori OHSHIMA, Atsushi SAITOU, Tatsuya KAWAKAMI
  • Patent number: 11072392
    Abstract: A bicycle operating device comprises a base, a user operated input, a cable actuator and a positioning abutment. The user operated input is movably arranged with respect to the base from a rest position towards an operated position. The cable actuator is movably arranged with respect to the base in response to movement of the user operated input between at least first and second cable holding positions. The positioning abutment is movably supported on the base between at least a first abutment position and a second abutment position. The positioning abutment selectively engages the user operated input to position the user operated input at an adjusted rest position in a state after the user operated input has been moved from the rest position to the operated position. The adjusted rest position is different from the rest position.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 27, 2021
    Assignee: Shimano Inc.
    Inventor: Tatsuya Kawakami
  • Patent number: 10988203
    Abstract: A bicycle operating device includes a base, a positioning ratchet, a positioning pawl, a user operated member, a first release member and a first release pawl. The positioning pawl engages the positioning ratchet to selectively maintain the positioning ratchet in first and second positions. The user operated member is in a first rest position while the positioning ratchet is in the first position, and in a second rest position while the positioning ratchet is in the second position. The positioning pawl is disengaged from the positioning ratchet by the first release member in response to the user operated member being operated from the second rest position in one of a first direction and a second direction. The first release pawl is provided on the user operated member, and contacts the first release member at the second position to maintain the user operated member at the second rest position.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: April 27, 2021
    Assignee: Shimano Inc.
    Inventor: Tatsuya Kawakami
  • Publication number: 20210114684
    Abstract: A bicycle operating device includes a base, a positioning ratchet, a positioning pawl, a user operated member, a first release member and a first release pawl. The positioning pawl engages the positioning ratchet to selectively maintain the positioning ratchet in first and second positions. The user operated member is in a first rest position while the positioning ratchet is in the first position, and in a second rest position while the positioning ratchet is in the second position. The positioning pawl is disengaged from the positioning ratchet by the first release member in response to the user operated member being operated from the second rest position in one of a first direction and a second direction. The first release pawl is provided on the user operated member, and contacts the first release member at the second position to maintain the user operated member at the second rest position.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 22, 2021
    Inventor: Tatsuya KAWAKAMI
  • Patent number: 10745082
    Abstract: A bicycle operating device includes a base member, an actuator arranged to be movable with respect to the base member and having a cable holder, and a user operated input arranged to be movable with respect to the base member to move the actuator. In a state where the actuator is located in a first position, the user operated input moves the actuator from the first position to a second position by being operated with respect to the base member in a first direction. In a state where the actuator is located in the second position, the user operated input moves the actuator from the second position to the first position by being operated in the first direction or a second direction, which differs from the first direction.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: August 18, 2020
    Assignee: Shimano Inc.
    Inventor: Tatsuya Kawakami
  • Publication number: 20200148305
    Abstract: A bicycle operating device comprises a base, a user operated input, a cable actuator and a positioning abutment. The user operated input is movably arranged with respect to the base from a rest position towards an operated position. The cable actuator is movably arranged with respect to the base in response to movement of the user operated input between at least first and second cable holding positions. The positioning abutment is movably supported on the base between at least a first abutment position and a second abutment position. The positioning abutment selectively engages the user operated input to position the user operated input at an adjusted rest position in a state after the user operated input has been moved from the rest position to the operated position. The adjusted rest position is different from the rest position.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 14, 2020
    Inventor: Tatsuya KAWAKAMI
  • Patent number: 10572199
    Abstract: A printer includes a printing mechanism, a printer BLT communicator, a printer device communicator capable of communicating with a customer display, and a printer processor for performing printing based on print data in a case where the print data is received and transmits display data to the customer display in a case where the display data is received, in which the printer processor temporarily stops wireless communication by shifting an operation mode of the printer BLT communicator to a Sniff mode to transmit a communication request to the POS terminal device at a communication request interval in a case where a period during which the print data or the display data is not received exceeds a shift period, and changes the communication request interval depending on whether or not the customer display is connected.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: February 25, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tatsuya Kawakami, Kei Watanabe
  • Patent number: 10450035
    Abstract: A bicycle operating device includes a support structure, a release member, a positioning ratchet and a position maintaining pawl. The release member is movable between first and second positions. The positioning ratchet has positioning ratchet teeth that establish predetermined positions. The position maintaining pawl is movable between a ratchet maintaining position and a ratchet releasing position. The position maintaining pawl includes a positioning portion, a holding portion, a release portion and a contact portion. The positioning portion moves away from the positioning ratchet, while the contact portion and the holding portion move toward the positioning ratchet teeth as the release member contacts and moves the release portion away from the release member as the release member moves in a releasing direction. The release portion moves away from the release member in response to movement of the positioning ratchet contacting and moving the contact portion away from the positioning ratchet.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: October 22, 2019
    Assignee: Shimano Inc.
    Inventor: Tatsuya Kawakami
  • Publication number: 20190127025
    Abstract: A bicycle operating device includes a base member, first and second cable control bodies, first and second positioning mechanisms, an operating member and an input mechanism. The first positioning mechanism selectively maintains the first cable control body in a first predetermined position. The second positioning mechanism selectively maintains the second cable control body in a second predetermined position. The input mechanism moves the first and second cable control bodies between the first and second predetermined positions in accordance with a predetermined operation sequence having a changing point to change operation from the first cable control body to the second cable control body. The input mechanism moves the first cable control body by at least two of the first predetermined positions in a single continuous operation of the operating member. The input mechanism includes a restricting structure that prohibits movement of the first cable control body at the changing point.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 2, 2019
    Inventors: Tatsuya KAWAKAMI, Nobukatsu HARA
  • Patent number: 10252774
    Abstract: A bicycle operating device includes a base member, first and second cable control bodies, first and second positioning mechanisms, an operating member and an input mechanism. The first positioning mechanism selectively maintains the first cable control body in a first predetermined position. The second positioning mechanism selectively maintains the second cable control body in a second predetermined position. The input mechanism moves the first and second cable control bodies between the first and second predetermined positions in accordance with a predetermined operation sequence having a changing point to change operation from the first cable control body to the second cable control body. The input mechanism moves the first cable control body by at least two of the first predetermined positions in a single continuous operation of the operating member. The input mechanism includes a restricting structure that prohibits movement of the first cable control body at the changing point.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 9, 2019
    Assignee: Shimano Inc.
    Inventors: Tatsuya Kawakami, Nobukatsu Hara
  • Publication number: 20190100281
    Abstract: A bicycle operating device includes a base member, an actuator arranged to be movable with respect to the base member and having a cable holder, and a user operated input arranged to be movable with respect to the base member to move the actuator. In a state where the actuator is located in a first position, the user operated input moves the actuator from the first position to a second position by being operated with respect to the base member in a first direction. In a state where the actuator is located in the second position, the user operated input moves the actuator from the second position to the first position by being operated in the first direction or a second direction, which differs from the first direction.
    Type: Application
    Filed: September 10, 2018
    Publication date: April 4, 2019
    Inventor: Tatsuya Kawakami
  • Publication number: 20190034134
    Abstract: A printer includes a printing mechanism, a printer BLT communicator, a printer device communicator capable of communicating with a customer display, and a printer processor for performing printing based on print data in a case where the print data is received and transmits display data to the customer display in a case where the display data is received, in which the printer processor temporarily stops wireless communication by shifting an operation mode of the printer BLT communicator to a Sniff mode to transmit a communication request to the POS terminal device at a communication request interval in a case where a period during which the print data or the display data is not received exceeds a shift period, and changes the communication request interval depending on whether or not the customer display is connected.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 31, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tatsuya KAWAKAMI, Kei Watanabe
  • Patent number: 9932091
    Abstract: A bicycle operating device basically includes an operating member and a click mechanism. The click mechanism includes an input part, an output part and an intermediate part. The intermediate part is movable between the input and output parts to transmit movement from the input part to the output part in accordance with movement of the operating member. The intermediate part contacts the input part at a first contact point, and contacts the output part at a second contact point. The intermediate part and the output part define a first angle that decreases as the operating member moves from the first position toward the second position. The first angle has an apex at the second contact point, a first leg extending from the second contact point to a center of the pivot of the output part and a second leg extending from the second contact point to the first contact point.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: April 3, 2018
    Assignee: Shimano Inc.
    Inventor: Tatsuya Kawakami
  • Patent number: 9919760
    Abstract: A bicycle operating device comprises a base member, an operating construction, a wire takeup member, a ratchet member, a first pawl, and an actuating member. The wire takeup member is configured to be rotatable relative to the base member about a rotational axis in a first direction and a second direction. The ratchet member has ratchet teeth. The actuating member includes a second pawl. The actuating member is configured to move the first pawl away from the ratchet member and to engage the second pawl with one of the ratchet teeth, in response to a second operation of the operating construction.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: March 20, 2018
    Assignee: SHIMANO INC.
    Inventor: Tatsuya Kawakami
  • Publication number: 20180072382
    Abstract: A bicycle operating device includes a support structure, a release member, a positioning ratchet and a position maintaining pawl. The release member is movable between first and second positions. The positioning ratchet has positioning ratchet teeth that establish predetermined positions. The position maintaining pawl is movable between a ratchet maintaining position and a ratchet releasing position. The position maintaining pawl includes a positioning portion, a holding portion, a release portion and a contact portion. The positioning portion moves away from the positioning ratchet, while the contact portion and the holding portion move toward the positioning ratchet teeth as the release member contacts and moves the release portion away from the release member as the release member moves in a releasing direction. The release portion moves away from the release member in response to movement of the positioning ratchet contacting and moving the contact portion away from the positioning ratchet.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 15, 2018
    Inventor: Tatsuya KAWAKAMI
  • Patent number: 9809278
    Abstract: An apparatus for reducing an engaging force of an engaging member for a bicycle component comprises a first engaging member and a movable second engaging member, wherein the first engaging member engages the second engaging member. A biasing mechanism applies a biasing force to bias the first engaging member and the second engaging member towards each other, wherein the biasing mechanism reduces the biasing force when the second engaging member moves.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: November 7, 2017
    Assignee: Shimano, Inc.
    Inventor: Tatsuya Kawakami
  • Patent number: 9797434
    Abstract: A shift operating device for a bicycle comprises a mounting member structured to be mounted to the bicycle, a cable coupling member coupled to the mounting member for moving a cable in a cable pulling direction and a cable releasing direction, a positioning unit that selectively maintains the cable coupling member in a plurality of operating positions, a first operating member that moves in a first direction and in a second direction different from the first direction, and a transmission unit that transmits movement of the first operating member to the positioning unit such that the cable coupling member moves from an origin operating position toward a destination operating position when the first operating member moves in either of both the first direction and the second direction.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: October 24, 2017
    Assignee: Shimano, Inc.
    Inventors: Tatsuya Kawakami, Etsuyoshi Watarai
  • Publication number: 20170274964
    Abstract: A bicycle operating device basically includes an operating member and a click mechanism. The click mechanism includes an input part, an output part and an intermediate part. The intermediate part is movable between the input and output parts to transmit movement from the input part to the output part in accordance with movement of the operating member. The intermediate part contacts the input part at a first contact point, and contacts the output part at a second contact point. The intermediate part and the output part define a first angle that decreases as the operating member moves from the first position toward the second position. The first angle has an apex at the second contact point, a first leg extending from the second contact point to a center of the pivot of the output part and a second leg extending from the second contact point to the first contact point.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 28, 2017
    Inventor: Tatsuya KAWAKAMI