Patents by Inventor Osamu Tsuboi

Osamu Tsuboi 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: 11951459
    Abstract: A photocatalyst made of cuprous bromide, wherein the cuprous bromide expresses a photocatalytic property of decomposing a substance brought into contact with the cuprous bromide by irradiation with light.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 9, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Michio Ushigome, Masato Wakamura, Osamu Tsuboi
  • Patent number: 11927923
    Abstract: A management apparatus in a time synchronization system includes a time variation information receiving unit configured to acquire time variation information and position information of a time synchronization apparatus, a position information classifying unit configured to classify time synchronization apparatuses into predetermined categories based on the acquired position information, a time variation analysis configured to determine majority based on whether patterns of time variation of the time synchronization apparatuses belonging to an identical category are identical to each other, and to analyze the time variation based on the determined results, and a filtering and delivery unit configured to output an instruction to block the time information received from the positioning satellite, to the time synchronization apparatus having abnormal time variation.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: March 12, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Takaaki Hisashima, Hiroki Sakuma, Kaoru Arai, Ryuta Sugiyama, Shunichi Tsuboi, Osamu Kurokawa, Kazuyuki Matsumura
  • Publication number: 20230324328
    Abstract: A gas sensor, which includes a solid electrolyte layer including positive charge carriers to which detection-target gas coordinates, an electrode arranged on part of a plane of the solid electrolyte layer, and a unit configured to accelerate movements of the positive charge carriers.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 12, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Satoru MOMOSE, Osamu TSUBOI, Ikuo SOGA
  • Patent number: 11714057
    Abstract: A gas sensor device includes a first electrode, a second electrode, and a polythiophene film which is formed between the first and second electrodes to be electrically coupled to the first and second electrodes, and to which cuprous bromide is adsorbed.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: August 1, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio Ushigome, Kazuaki Karasawa, Osamu Tsuboi
  • Patent number: 11271161
    Abstract: A semiconductor material includes polythiophene, sulfonic acid, and copper ion. The copper ion is bonded to the sulfonic acid.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 8, 2022
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio Ushigome, Osamu Tsuboi
  • Publication number: 20210278357
    Abstract: A gas sensor device includes a first electrode, a second electrode, and a polythiophene film which is formed between the first and second electrodes to be electrically coupled to the first and second electrodes, and to which cuprous bromide is adsorbed.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio USHIGOME, Kazuaki Karasawa, Osamu Tsuboi
  • Patent number: 11073492
    Abstract: A sensor device includes a first electrode and a second electrode disposed over a substrate, and a sensitive film including a base film which couples the first electrode and the second electrode to each other and contains Cu and a halogen element and PEDOT/PSS which bonds to the base film.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: July 27, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Michio Ushigome, Osamu Tsuboi, Kazuaki Karasawa
  • Publication number: 20210088465
    Abstract: A gas sensor includes: a gas sensor cartridge; and a gas sensor body to which the gas sensor cartridge, which includes: a case that has an intake port and an exhaust port and serves as a gas sensor chamber; a gas sensor device provided inside the case; an external connection terminal provided at the case and connected to the gas sensor device; a first sealing member that seals the intake port such that the intake port is opened when the gas sensor cartridge is attached to the gas sensor body; and a second sealing member that seals the exhaust port such that the exhaust port is opened when the gas sensor cartridge is attached to the gas sensor body, is detachably attached.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Michio USHIGOME, Satoru Momose, Yoshio Kikuchi
  • Publication number: 20210086169
    Abstract: A photocatalyst made of cuprous bromide, wherein the cuprous bromide expresses a photocatalytic property of decomposing a substance brought into contact with the cuprous bromide by irradiation with light.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Michio USHIGOME, Masato WAKAMURA, Osamu TSUBOI
  • Patent number: 10928355
    Abstract: A gas sensor device has a crystalline film of copper(I) bromide, wherein a crystal surface of the copper(I) bromide is formed of a stepped terrace having a flat face and a steep slope.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: February 23, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio Ushigome, Osamu Tsuboi
  • Patent number: 10725165
    Abstract: A distance measuring device includes one or more processors configured to: detect a wave formed by synthesizing a frequency-swept electromagnetic wave transmitted to an object with a wave reflected on the object; measure, based on the synthesized wave, a distance to the object; calculate a displacement-caused inclination, caused by the displacement of the object, of a power spectrum of the synthesized wave; and measure the distance based on a signal in which the displacement-caused inclination has been removed from the power spectrum.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: July 28, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Yoshio Kikuchi, Osamu Tsuboi
  • Publication number: 20200217815
    Abstract: A gas sensor device has a crystalline film of copper(I) bromide, wherein a crystal surface of the copper(I) bromide is formed of a stepped terrace having a flat face and a steep slope.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio USHIGOME, Osamu Tsuboi
  • Patent number: 10697925
    Abstract: A gas sensor device has a crystalline film of copper(I) bromide, wherein a crystal surface of the copper(I) bromide is formed of a stepped terrace having a flat face and a steep slope.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: June 30, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio Ushigome, Osamu Tsuboi
  • Patent number: 10670552
    Abstract: A gas sensor, which includes a solid electrolyte layer including positive charge carriers to which detection-target gas coordinates, an electrode arranged on part of a plane of the solid electrolyte layer, and a unit configured to accelerate movements of the positive charge carriers.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: June 2, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Osamu Tsuboi, Ikuo Soga
  • Publication number: 20200124563
    Abstract: A gas sensor, which includes a solid electrolyte layer including positive charge carriers to which detection-target gas coordinates, an electrode arranged on part of a plane of the solid electrolyte layer, and a unit configured to accelerate movements of the positive charge carriers.
    Type: Application
    Filed: December 17, 2019
    Publication date: April 23, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Satoru MOMOSE, Osamu TSUBOI, Ikuo SOGA
  • Publication number: 20200072816
    Abstract: A gas sensor device includes: a pair of electrodes; a conductor that electrically connects the pair of electrodes to each other; and at least one of a thiolate anion and an organic compound having a mercapto group, which is disposed on a surface of the conductor. A gas evaluation apparatus includes a first gas sensor device as described above and a second gas sensor device which has neither the mercapto group nor the thiolate anion disposed on a surface of its conductor.
    Type: Application
    Filed: August 9, 2019
    Publication date: March 5, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Osamu Tsuboi, Michio Ushigome
  • Patent number: 10495595
    Abstract: A gas sensor device includes: a sensor film including a sensor surface and a resistance which increases with an increase in an amount of gas adsorbed on the sensor surface; a first electrode, a second electrode, and a third electrode that are electrically coupled to the sensor film; and a protective film that covers the sensor surface in a region between the first electrode and the second electrode, wherein the sensor surface is exposed in a region near the third electrode.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 3, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Kazuaki Karasawa, Michio Ushigome, Satoru Momose, Ryozo Takasu, Osamu Tsuboi
  • Patent number: 10481146
    Abstract: A gas sensor includes a p-type semiconductor layer in which a surface at a contacting side with detection target gas is covered with tertiary amine and two electrodes electrically coupled with each other through the p-type semiconductor layer.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 19, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Kazuaki Karasawa, Osamu Tsuboi
  • Publication number: 20190293589
    Abstract: A detection device includes, a first electrode, a second electrode, a conductor including at least a surface portion made of gold or platinum group metal, which extends from the first electrode to the second electrode so as to make an electric conduction between the first electrode and the second electrode, and a p-type semiconductor provided between the surface portion of the conductor and at least one of the first electrode and the second electrode so as to make an electric connection between the surface portion of the conductor and at least one of the first electrode and the second electrode.
    Type: Application
    Filed: February 26, 2019
    Publication date: September 26, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio USHIGOME, Osamu Tsuboi
  • Patent number: 10408662
    Abstract: A water amount measurement device includes a light emitting element to emit light, a light receiving element to receive the light reflected by a liquid surface and by a liquid bottom at a bottom surface within a pipeline, a storage to store a distance from the light emitting element to the liquid bottom, and a processor. The processor computes a water level of the liquid flowing through the pipeline according to different formulas depending on whether a comparison result of distance data obtained based on an output signal of the light receiving element, and the distance at a time of measurement, includes a component corresponding to a distance exceeding the distance generated by the reflection from the liquid bottom, or the comparison result includes a component corresponding to a distance less than the distance generated by the reflection from the liquid surface.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: September 10, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Michio Ushigome, Yoshio Kikuchi, Ryozo Takasu