Patents by Inventor Tsuyoshi Yamamoto

Tsuyoshi Yamamoto 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: 20240016068
    Abstract: A superconducting quantum circuit includes: a first resonator having a superconducting quantum interference device and a capacitor that forms a closed loop together with the superconducting quantum interference device; and a control line being connected to a first control port and magnetically coupled to the superconducting quantum interference device, wherein the control line includes at least a first line having a characteristic impedance that indicates a first impedance value, and a second line being provided closer to a portion magnetically coupled to the superconducting quantum interference device than the first line and having a characteristic impedance that indicates a second impedance value being different from the first impedance value.
    Type: Application
    Filed: June 26, 2023
    Publication date: January 11, 2024
    Applicants: NEC Corporation, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Yohei KAWAKAMI, Yoshiro URADE, Yoshihito HASHIMOTO, Tsuyoshi YAMAMOTO
  • Publication number: 20230422636
    Abstract: A quantum device capable of suppressing the deterioration of the performance thereof is provided. A quantum device (1) includes a plurality of first conductors (2), a plurality of second conductors (4), and a conductor layer (6). The first conductors (2), the second conductors (4), and the conductor layer (6) are formed of superconducting materials. An oxide film (8) is formed between the first conductors (2) and the second conductors (4). A Josephson junction (10) is formed by a part of one of the plurality of first conductors (2), a part of one of the plurality of second conductors (4), and the oxide film (8). The one first conductor (2) constituting the Josephson junction (10) and the conductor layer (6) are connected to each other directly or through another conductor. The one second conductor (4) constituting the Josephson junction (10) and the conductor layer (6) are connected to each other directly or through another conductor.
    Type: Application
    Filed: December 4, 2020
    Publication date: December 28, 2023
    Applicant: NEC Corporation
    Inventors: Tetsuro Sato, Tsuyoshi Yamamoto
  • Patent number: 11850806
    Abstract: A method for manufacturing an air bag includes forming a bag portion surrounded by a welded portion extending in an annular shape by pressing at least one welding mold against two sheet materials arranged to be stacked from a stacking direction of the sheet materials. The welding mold is pressed against the sheet materials to form the welded portion including a welding bead portion protruding to an inside of the bag portion between the sheet materials. A pressing surface of the welding mold against the sheet materials is provided with a slope portion facing in the stacking direction of the sheet materials and in a direction of the inside of the bag portion at a position further on an outside of the bag portion than a position at which the welding bead portion is formed.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: December 26, 2023
    Assignee: AISIN CORPORATION
    Inventors: Yasuhito Kurematsu, Makoto Sakai, Ryosuke Mizuno, Satoshi Masuda, Tomokazu Seki, Masaaki Hasegawa, Tsuyoshi Yamamoto, Tomoko Kanbara
  • Publication number: 20230363293
    Abstract: A superconducting quantum circuit apparatus includes a resonator including a SQUID including at least two Josephson junctions in a loop, a magnetic field application part that includes a conductor portion, a current passing therethrough generating a magnetic flux penetrating through the SQUID, the current supplied from a current control part, and a parallel LC circuit including an inductor and a capacitor each made of a superconducting material, the inductor and the capacitor having respective one ends connected in common to the magnetic field application part and respective other ends connected in common to a current path from the current control part.
    Type: Application
    Filed: January 26, 2023
    Publication date: November 9, 2023
    Applicant: NEC Corporation
    Inventors: Akira Miyata, Tsuyoshi Yamamoto
  • Publication number: 20230299719
    Abstract: An oscillator in which crosstalk can be reduced is provided. An oscillator includes a SQUID, a transmission line connected to the SQUID, a ground plane, and a first connection circuit disposed in a vicinity of a node of an electric field of a standing wave that is generated when the oscillator is oscillating, the first connection circuit connecting parts of the ground plane located on both sides of the transmission line to each other.
    Type: Application
    Filed: April 13, 2023
    Publication date: September 21, 2023
    Applicant: NEC Corporation
    Inventors: Yoshihito HASHIMOTO, Tsuyoshi Yamamoto, Tomohiro Yamaji
  • Publication number: 20230276717
    Abstract: Provided are an oscillator and a quantum computer capable of suppressing an occupied area of a circuit. An oscillator (300) includes a resonator (100) including a plurality of loop circuits in which a first superconducting line (112a), a first Josephson junction (111a), a second superconducting line (112b), and a second Josephson junction (111b) are annularly connected, and a magnetic field application circuit (200) including an electrode that goes around in a predetermined shape and configured to apply a magnetic field to the loop circuit, in which the electrode is arranged so as to face at least two of the loop circuits.
    Type: Application
    Filed: June 5, 2020
    Publication date: August 31, 2023
    Applicant: NEC Corporation
    Inventors: Akira MIYATA, Katsumi KIKUCHI, Suguru WATANABE, Takanori NISHI, Hideyuki SATOU, Tomohiro YAMAJI, Tsuyoshi YAMAMOTO, Yoshihito HASHIMOTO
  • Publication number: 20230237362
    Abstract: Provided is a quantum device capable of suppressing reduction in performance of quantum bit even when a quantum chip is flip-chip mounted on an interposer. A quantum chip (10) is flip-chip mounted on an interposer (20) by a bump (30). A coplanar line (12) coupling adjacent quantum bits is formed on the quantum chip (10). A gap (22) is provided, in the interposer (20), at a location facing a center conductor (12a) of the coplanar line (12). A second ground electrode (24) is formed around gap (22). The interposer (20) has a connection electrode (40) connecting the second ground electrode (24) around the gap (22). A bump (30A) formed in the vicinity of the connection electrode (40) is connected to the first ground electrode (12b) and the second ground electrode (24).
    Type: Application
    Filed: June 5, 2020
    Publication date: July 27, 2023
    Applicant: NEC Corporation
    Inventors: Akira MIYATA, Katsumi KIKUCHI, Suguru WATANABE, Takanori NISHI, Hideyuki SATOU, Tomohiro YAMAJI, Tsuyoshi YAMAMOTO, Yoshihito HASHIMOTO
  • Publication number: 20230171908
    Abstract: A sample holder includes: a pedestal made of metal; and a PCB (Printed Circuit Board) placed on the pedestal. The PCB includes a through opening that penetrates from a front surface to a rear surface of the PCB. The pedestal includes a cavity bottomed and with a top of the pedestal opened, the cavity formed at a portion corresponding to directly under the through opening on a side of the pedestal on which the PCB is placed. As a configuration on the side on which the PCB is placed, viewed from above, a part of the cavity is protruded outward from the through opening.
    Type: Application
    Filed: November 28, 2022
    Publication date: June 1, 2023
    Applicant: NEC Corporation
    Inventors: Yoshihito HASHIMOTO, Tsuyoshi Yamamoto
  • Patent number: 11658613
    Abstract: An oscillator in which crosstalk can be reduced is provided. An oscillator includes a SQUID, a transmission line connected to the SQUID, a ground plane, and a first connection circuit disposed in a vicinity of a node of an electric field of a standing wave that is generated when the oscillator is oscillating, the first connection circuit connecting parts of the ground plane located on both sides of the transmission line to each other.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: May 23, 2023
    Assignee: NEC CORPORATION
    Inventors: Yoshihito Hashimoto, Tsuyoshi Yamamoto, Tomohiro Yamaji
  • Publication number: 20230113556
    Abstract: The present invention provides an antisense oligomer having the base sequence depicted in SEQ ID NO: 26, an antisense oligomer having a base sequence resulting from substitution, deletion, insertion, or addition of 1 to 6 bases in the base sequence depicted in SEQ ID NO: 26, a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable hydrate thereof, an oligonucleotide conjugate in which the antisense oligomer is bound with a molecule capable of binding to an asialoglycoprotein receptor, and a pharmaceutical composition containing the same.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 13, 2023
    Applicants: NATIONAL CEREBRAL AND CARDIOVASCULAR CENTER, OSAKA UNIVERSITY
    Inventors: Mariko SHIBA, Tsuyoshi YAMAMOTO, Fumito WADA, Tadayuki KOBAYASHI, Keisuke TACHIBANA, Satoshi OBIKA
  • Publication number: 20230045425
    Abstract: The present invention relates to a window glass for vehicle, which includes a glass plate and an antenna provided to the glass plate and capable of receiving electromagnetic waves of AM broadcasting and FM broadcasting, in which the antenna includes an antenna element and a feeding portion electrically connected to the antenna element, the antenna element lies at a distance of longer than 20 mm from a metallic portion of the vehicle in a vehicle-mounted state, the antenna element includes at least one horizontal portion extending in an approximately horizontal direction in the vehicle-mounted state, the horizontal portion has an open end or has a bent portion bending apart therefrom which has an open end, and the horizontal portion has a total element length that is at least 3/4 of an overall length of the antenna element.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 9, 2023
    Applicant: AGC Inc.
    Inventors: Tsuyoshi YAMAMOTO, Satoshi TOKUNAGA, Haruto SANDA
  • Publication number: 20230030526
    Abstract: A technique relating to a method for enzymatically producing maytansinol from an ansamitocin species, such as AP3, is provided. The method for producing maytansinol includes enzymatically producing maytansinol from an ansamitocin species with any one of various proteins.
    Type: Application
    Filed: November 27, 2020
    Publication date: February 2, 2023
    Inventors: Yutaro BABA, Kenji NISHIMURA, Yuta MIKI, Yukie KAWASAKI, Tsuyoshi YAMAMOTO, Mayu KAWASAKI, Shogo NAKANO, Sohei ITO
  • Patent number: 11542585
    Abstract: A method for treating an inner wall surface of a treatment object uses a treatment object that is at least one of a container housing an ozone gas, a treatment container housing an object to be subjected to a surface treatment using an ozone gas and a pipe configured to supply an ozone gas. The method for treating an inner wall surface of a treatment object includes the steps of: determining whether an abnormal part is present in the inner wall surface of the treatment object or not; and distributing an ozone gas having a concentration of 10% by volume or more and 30% by volume or less and a temperature of 60° C. or less such that the ozone gas contacts the inner wall surface of the treatment object after the step of determining whether an abnormal part is present or not.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: January 3, 2023
    Assignee: IWATANI CORPORATION
    Inventors: Koichi Izumi, Masahiro Furutani, Tsuyoshi Yamamoto
  • Patent number: 11538935
    Abstract: A SiC semiconductor device includes a main cell region and sense cell region being electrically isolated by an element isolation portion. The SiC semiconductor device includes a substrate, a first impurity region, a first current dispersion layer, first deep layers, a second current dispersion layer, a second deep layer, a base region, a trench gate structure, a second impurity region, first electrodes and a second electrode. The second impurity region, the first electrodes, and the second electrode are disposed at the main cell region and the sense cell region to form a vertical semiconductor element. The vertical semiconductor element allows a current flowing between the first electrode and the second electrode through a voltage applied to the gate electrode. The spacing interval between the deep layers at the element isolation portion is shorter than or equal to a spacing interval between the deep layers at the main cell region.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: December 27, 2022
    Assignee: DENSO CORPORATION
    Inventors: Tsuyoshi Yamamoto, Ryota Suzuki, Yusuke Yamashita
  • Publication number: 20220377879
    Abstract: A sample holder includes a base comprising a support structure and a printed circuit board (PCB) in contact with the base. The PCB includes: a dielectric; a front-surface ground (GND) formed on a front surface of the dielectric; a back-surface GND formed on a back surface of the dielectric; a through hole penetrating from the front-surface GND to the back-surface GND, the through hole in which a chip is disposed, and a conductor that electrically connects the front-surface GND and the back-surface GND on an end face of the through hole. At least a part of the base below the through hole has a cavity. The support structure that supports a surface of the chip and is electrically connected to the base. The support structure is disposed in the cavity.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 24, 2022
    Applicant: NEC Corporation
    Inventors: Yoshihito HASHIMOTO, Tsuyoshi Yamamoto, Kohei Matsuura
  • Publication number: 20220377880
    Abstract: A sample holder includes a base comprising a support structure and a printed circuit board (PCB) in contact with the base. The PCB has a through hole. The PCB has a cavity in at least a part of the base below the through hole. The support structure that supports a surface of a chip and is electrically connected to the base. The support structure is disposed in the cavity. At least a part of the section supporting the chip in the support structure is not parallel to the back surface of the chip.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 24, 2022
    Applicant: NEC Corporation
    Inventors: Yoshihito HASHIMOTO, Tsuyoshi YAMAMOTO, Kohei MATSUURA
  • Publication number: 20220318660
    Abstract: A superconducting circuit and a quantum computer capable of implementing four-body interaction using a plurality of superconducting qubit circuits supplied with signals of the same frequency are provided. A superconducting circuit (1) includes four superconducting qubit circuits (10), a coupling circuit (20) directly connected to the four superconducting qubit circuits (10). Each of the superconducting qubit circuits (10) indicates a qubit by being in a first phase state or a second phase state, when the number of the superconducting qubit circuits (10) in the first phase state among the four superconducting qubit circuits (10) is an even number, an interaction term of Hamiltonian of the superconducting circuit (1) takes a first value, and when the number of the superconducting qubit circuits (10) in the first phase state among the four superconducting qubit circuits (10) is an odd number, the interaction term takes a second value.
    Type: Application
    Filed: June 26, 2020
    Publication date: October 6, 2022
    Applicant: NEC Corporation
    Inventors: Masahiro HASEGAWA, Tsuyoshi YAMAMOTO, Yoshihito HASHIMOTO
  • Patent number: 11437703
    Abstract: A window glass for a vehicle includes a glass plate for window of the vehicle, a defogger on the glass plate, and an antenna on the glass plate. The defogger includes a pair of bus bars extending in a height direction of the glass plate, a first defogging area formed by a plurality of first heating wires connected between the pair of bus bars and extending in a widthwise direction of the glass plate, and a second defogging area formed by at least a second heating wire connected to the pair of bus bars or to the first defogging area and extending in a protruding manner to one side in the height direction to surround a wiring-prohibited area. The antenna is provided in at least one of areas that are an area on left of the second defogging area and an area on right of the second defogging area.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: September 6, 2022
    Assignee: AGC INC.
    Inventors: Takafumi Inoue, Naoki Hashimoto, Tsuyoshi Yamamoto, Shintaro Kojima, Seiji Morimoto, Masakazu Okabe
  • Publication number: 20220261680
    Abstract: A superconducting circuit and a quantum computer capable of implementing four-body interaction while reducing an amount of hardware are provided. A superconducting circuit (1) includes four superconducting qubit circuits (10), a coupling circuit (20) inductively coupled to the four superconducting qubit circuits (10). Each of the superconducting qubit circuits (10) indicates a qubit by being in a first phase state or a second phase state, when the number of the superconducting qubit circuits (10) in the first phase state among the four superconducting qubit circuits (10) is an even number, an interaction term of Hamiltonian of the superconducting circuit (1) takes a first value, and when the number of the superconducting qubit circuits (10) in the first phase state among the four superconducting qubit circuits (10) is an odd number, the interaction term takes a second value.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 18, 2022
    Applicant: NEC Corporation
    Inventors: Masahiro HASEGAWA, Tsuyoshi YAMAMOTO, Yoshihoto HASHIMOTO
  • Publication number: 20220261676
    Abstract: A resonator, an oscillator, and a quantum computer in which both moderate nonlinearity and a low loss are achieved, and the area occupied by the circuit can be reduced are provided. A resonator (100) includes at least one loop circuit (110) in which a first superconducting line (101), a first Josephson junction (103), a second superconducting line (102), and a second Josephson junction (104) are connected in a ring shape, at least one third Josephson junction (130) provided separately from the Josephson junction included in the loop circuit (110), and a capacitor (120), in which the loop circuit (110), the third Josephson junction (130), and the capacitor (120) are connected in a ring shape.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 18, 2022
    Applicant: NEC Corporation
    Inventors: Tsuyoshi YAMAMOTO, Tomohiro YAMAJI, Yoshihito HASHIMOTO