Patents by Inventor Ryo ICHIKAWA

Ryo ICHIKAWA 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: 20240206061
    Abstract: A wiring substrate includes an insulating layer including a first layer and a second layer, and a conductor layer including a metal film formed on a surface of the second layer of the insulating layer such that the conductor layer includes a conductor pattern. The first layer includes resin and first inorganic particles, the second layer includes resin and second inorganic particles at the content rate that is lower than the content rate of the first inorganic particles in the first layer, and the thickness of the first layer is 90% or more of the thickness of the insulating layer. The second layer of the insulating layer includes a composite layer having the thickness in the range of 0.1 to 0.3 ?m, and the composite layer includes part of the metal film in the conductor layer formed in gaps between the second inorganic particles and resin in the second layer.
    Type: Application
    Filed: December 13, 2023
    Publication date: June 20, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Ryo ANDO, Nobuhisa KURODA, Shogo FUKUI, Kosei ICHIKAWA, Makoto KATO
  • Patent number: 11961059
    Abstract: The present disclosure promotes distribution of sensor data among a plurality of business operators. A controller that an information processing system according to the present disclosure includes collects first data including a plurality of items and personal information from mobile bodies belonging to a first business operator. The controller converts the first data to second data not being usable to identify individuals. The controller provides data in a range decided based on content of a predetermined data use contract, among the second data, to a second business operator. The controller calculates a consideration for the data that is to be paid by the second business operator, based on a data use record of the second business operator.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: April 16, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuaki Matsueda, Takashi Sueki, Jun Okamoto, Takumi Wada, Ryo Midorikawa, Junichi Nonaka, Wataru Shiraishi, Yasuhisa Fujiwara, Hiroshi Ishikawa, Shigeru Ichikawa, Hidetaka Eguchi, Masayo Nagai, Mika Inaba
  • Publication number: 20240108291
    Abstract: A ventricular pressure waveform estimation device includes a calculation unit. The calculation unit estimates a plurality of coefficients of a model equation that indicates a left ventricular pressure waveform or a right ventricular pressure waveform by using values of one or more parameters related to a heartbeat or an arterial pressure to estimate at least a part of the left ventricular pressure waveform or the right ventricular pressure waveform.
    Type: Application
    Filed: December 1, 2023
    Publication date: April 4, 2024
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Tomonori HATTA, Ryo ICHIKAWA, Makoto NARITA, Tomoki UTSUGIDA, Yoshiharu EZASHI
  • Publication number: 20230355116
    Abstract: An arterial-pressure estimation apparatus includes a control unit configured to acquire sensor data indicating, as a blood flow timing, a timing at which a blood flow generated at one or more locations of a blood vessel downstream of an aorta is detected for each heartbeat when the one or more locations is compressed while a pressure is gradually reduced, record a value of the pressure corresponding to each blood flow timing, correct the value of the pressure corresponding to the blood flow timing included in an inspiration period of a respiration cycle, and estimate a change in an arterial pressure over time by referring to the acquired sensor data and the recorded and corrected value of the pressure.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 9, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Tomonori HATTA, Ryo ICHIKAWA
  • Patent number: 11196427
    Abstract: There is configured a charge pump circuit for outputting a phase difference current to a first node, the charge pump circuit including a first current source coupled between a high potential power supply node and the first node, a second current source coupled between a low potential power supply node and the first node, a first switch coupled between the first current source and the first node, a second switch coupled between the second current source and the first node, a third switch coupled between the first current source and a second node, a fourth switch coupled between the second current source and the second node, a third current source for supplying a negative offset current to the first node, and a push-type differential amplifier circuit an input side of which is coupled to the first node, and an output side of which is coupled to the second node.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: December 7, 2021
    Inventors: Akio Tsutsumi, Ryo Ichikawa, Hisahiro Ito, Yasunari Furuya
  • Patent number: 11165433
    Abstract: A charge pump includes: a switch circuit that switches a current source conducted to an output node based on a signal from a phase frequency detector included in a PLL circuit; a first current source that is the current source provided between a high potential node and the switch circuit, and supplies a current to the output node by a first conduction-type depletion mode MOS transistor forming a self-bias circuit; and a second current source that is the current source provided between a low potential node and the switch circuit, and draws the current from the output node by the first conduction-type depletion mode MOS transistor forming the self-bias circuit.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: November 2, 2021
    Inventors: Ryo Ichikawa, Hisahiro Ito
  • Publication number: 20210273643
    Abstract: There is configured a charge pump circuit for outputting a phase difference current to a first node, the charge pump circuit including a first current source coupled between a high potential power supply node and the first node, a second current source coupled between a low potential power supply node and the first node, a first switch coupled between the first current source and the first node, a second switch coupled between the second current source and the first node, a third switch coupled between the first current source and a second node, a fourth switch coupled between the second current source and the second node, a third current source for supplying a negative offset current to the first node, and a push-type differential amplifier circuit an input side of which is coupled to the first node, and an output side of which is coupled to the second node.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Inventors: Akio TSUTSUMI, Ryo ICHIKAWA, Hisahiro ITO, Yasunari FURUYA
  • Publication number: 20210184685
    Abstract: A charge pump includes: a switch circuit that switches a current source conducted to an output node based on a signal from a phase frequency detector included in a PLL circuit; a first current source that is the current source provided between a high potential node and the switch circuit, and supplies a current to the output node by a first conduction-type depletion mode MOS transistor forming a self-bias circuit; and a second current source that is the current source provided between a low potential node and the switch circuit, and draws the current from the output node by the first conduction-type depletion mode MOS transistor forming the self-bias circuit.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Inventors: Ryo ICHIKAWA, Hisahiro ITO