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: 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
  • Patent number: 10371658
    Abstract: A gas sensor includes a p-type semiconductor layer that contains copper or silver cations and contacts with detection target gas, a first electrode that is a Schottky electrode to the p-type semiconductor layer, a high-resistance layer that is provided between the p-type semiconductor layer and the first electrode such that the p-type semiconductor layer and the first electrode partly contact with each other and has resistance higher than that of each of the p-type semiconductor layer and the first electrode, and a second electrode that is an ohmic electrode to the p-type semiconductor layer.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: August 6, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Osamu Tsuboi, Kazuaki Karasawa
  • Publication number: 20190137428
    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: Application
    Filed: October 25, 2018
    Publication date: May 9, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Michio USHIGOME, Osamu Tsuboi, Kazuaki Karasawa
  • Publication number: 20190067585
    Abstract: A semiconductor material includes polythiophene, sulfonic acid, and copper ion. The copper ion is bonded to the sulfonic acid.
    Type: Application
    Filed: July 30, 2018
    Publication date: February 28, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio Ushigome, Osamu Tsuboi
  • Publication number: 20180313776
    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: April 20, 2018
    Publication date: November 1, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio USHIGOME, Kazuaki Karasawa, Osamu Tsuboi
  • Publication number: 20180259633
    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: Application
    Filed: March 7, 2018
    Publication date: September 13, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yoshio Kikuchi, Osamu Tsuboi
  • Patent number: 10018548
    Abstract: A measurement device includes a first flow passage, a heating unit provided on one end side of the first flow passage, a gas detection unit provided on one end side of the first flow passage and capable of detecting a gas through heat applied from the heating unit, and a particle measurement unit which optically measures, at an upper side than the heating unit of the first flow passage, particles passing through the first flow passage.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: July 10, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Michio Ushigome, Satoru Momose
  • Patent number: 9952175
    Abstract: A gas sensor including a first layer including copper (I) bromide, and a second layer, which is disposed on the first layer, and is a p-type semiconductor that is different from the copper (I) bromide, wherein one of the first layer and the second layer is more preferentially in contact with detection-target gas than the other.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 24, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Satoru Momose, Osamu Tsuboi, Ikuo Soga
  • Patent number: 9917239
    Abstract: A thermoelectric conversion device includes: a thermoelectric conversion element in which a p-type thermoelectric material and an n-type thermoelectric material that are provided between an upper electrode and a lower electrode of the thermoelectric conversion element are alternately connected in series via the upper electrode and the lower electrode; an insulating layer that is provided between the upper electrode and the lower electrode and covers the p-type thermoelectric material and the n-type thermoelectric material; and an electric storage element that is provided between the upper electrode and the lower electrode and is covered by the insulating layer.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: March 13, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Norinao Kouma, Osamu Tsuboi, Takuya Nishino
  • Publication number: 20180038822
    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: August 3, 2017
    Publication date: February 8, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Michio USHIGOME, Osamu Tsuboi
  • Patent number: 9851380
    Abstract: The following disclosure provides a power strip including: a busbar electrically connected to a power source; multiple electrical outlets allowing multiple power plugs to be inserted thereinto, respectively; distribution bars which are branched out from the busbar and respectively supply the electrical outlets with electric currents of the power source; and a plurality of electric current measurement units each configured to measure the electric current flowing through a corresponding one of the distribution bars.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: December 26, 2017
    Assignees: FUJITSU LIMITED, FUJITSU COMPONENT LIMITED
    Inventors: Hiromitsu Soneda, Osamu Tsuboi, Fumihiko Nakazawa, Naoyuki Nagao
  • Patent number: 9852867
    Abstract: A downsized current sensor with a switch function is disclosed. The current sensor includes: a magnetic circuit to converge a magnetic flux generated from an electric circuit at a magnetic sensor; a switch to open and close the electric circuit in a way that operates together with a movable magnetic body configuring a part of the magnetic circuit; and a magnetizing coil to generate magnetic force enabling the movable magnetic body to be attracted to a fixed magnetic body configuring a part of the magnetic circuit.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 26, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Hiromitsu Soneda
  • Publication number: 20170350839
    Abstract: A gas sensor includes a p-type semiconductor layer that contains copper or silver cations and contacts with detection target gas, a first electrode that is a Schottky electrode to the p-type semiconductor layer, a high-resistance layer that is provided between the p-type semiconductor layer and the first electrode such that the p-type semiconductor layer and the first electrode partly contact with each other and has resistance higher than that of each of the p-type semiconductor layer and the first electrode, and a second electrode that is an ohmic electrode to the p-type semiconductor layer.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Osamu Tsuboi, Kazuaki Karasawa
  • Publication number: 20170336345
    Abstract: A gas sensor includes a p-type semiconductor layer that contains a compound of copper or silver and contacts with detection target gas, a first electrode that is a Schottky electrode to the p-type semiconductor layer, a high-resistance layer that is provided between the p-type semiconductor layer and the first electrode and has resistance higher than that of each of the p-type semiconductor layer and the first electrode, and a second electrode that is an ohmic electrode to the p-type semiconductor layer.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 23, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Satoru Momose, Osamu Tsuboi, Ikuo Soga
  • Patent number: 9816874
    Abstract: A power generation device includes a thermoelectric conversion part; a cooling member configured to be disposed on one principal surface of the thermoelectric conversion part; and a heat generation part configured to be disposed on another principal surface of the thermoelectric conversion part, to be formed of a viscoelastic body having a plurality of cavities formed in the viscoelastic body, and to generate heat by violation.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: November 14, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Norinao Kouma
  • Publication number: 20170299536
    Abstract: A gas analyzer including: a chamber; a first gas sensor provided in the chamber and including a first gas sensitive member; a second gas sensor provided in the chamber and including a second gas sensitive member; and a detector that detects each of resistance changes of the first and the second gas sensitive members; wherein the first gas sensitive member is an oxide semiconductor mainly composed of at least one of Sn, W, Zn and In or a semiconductor mainly composed of C, and the second gas sensitive member is mainly composed of a halide or an oxide of Cu or Ag.
    Type: Application
    Filed: March 22, 2017
    Publication date: October 19, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Satoru Momose, Michio USHIGOME, Kazuaki Karasawa, Ryozo Takasu
  • Publication number: 20170254767
    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: Application
    Filed: December 15, 2016
    Publication date: September 7, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Kazuaki Karasawa, Michio USHIGOME, Satoru Momose, Ryozo Takasu, Osamu Tsuboi
  • Publication number: 20170234717
    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: Application
    Filed: May 2, 2017
    Publication date: August 17, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Michio USHIGOME, Yoshio Kikuchi, Ryozo Takasu
  • Patent number: 9666541
    Abstract: An electronic device includes: a substrate; a first all-solid-state secondary cell provided on the substrate, the first all-solid-state secondary cell including a first electrode layer, a solid electrolyte layer, and a second electrode layer; a first transistor including a first source drain, a second source drain electrically connected to the second electrode layer, and a first gate electrode; a first terminal electrically connected to the first electrode layer; a second terminal to control a potential of the first gate electrode; a third terminal electrically connected to the first source drain; and a sealing layer covering the first all-solid-state secondary cell and the first transistor, wherein the first terminal, the second terminal, and the third terminal are exposed on an upper surface of the sealing layer.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: May 30, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Ikuo Soga, Tamotsu Yamamoto
  • Publication number: 20170115196
    Abstract: A measurement device includes a first flow passage, a heating unit provided on one end side of the first flow passage, a gas detection unit provided on one end side of the first flow passage and capable of detecting a gas through heat applied from the heating unit, and a particle measurement unit which optically measures, at an upper side than the heating unit of the first flow passage, particles passing through the first flow passage.
    Type: Application
    Filed: January 5, 2017
    Publication date: April 27, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Osamu Tsuboi, Michio USHIGOME, Satoru Momose