Patents by Inventor Takakuni Douseki

Takakuni Douseki 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: 12260290
    Abstract: A two-dimensional code 100 includes a plurality of lines L arranged in a second direction (X direction) at an interval S, and each line L includes a plurality of cells that indicate a plurality of bits and are arranged in series in a first direction (Y direction) orthogonal to the second direction. Each of the plurality of cells is either a first data cell 101 indicating a first value out of two values that the bits indicate, or a second data cell 102 indicating a second value out of the two values that the bits indicate. The first data cell includes a first density region 103 indicating the first value at a first position in the second direction. The second data cell includes a second density region 104 indicating the second value at the first position, and a third density region 105 adjacent to the second density region in the second direction.
    Type: Grant
    Filed: January 24, 2024
    Date of Patent: March 25, 2025
    Assignees: The Ritsumeikan Trust, Nozaki Insatsu Shigyo Co., LTD.
    Inventors: Takakuni Douseki, Yohei Fukumizu, Junichi Misawa, Kentaro Kimura
  • Patent number: 12255535
    Abstract: An electronic device with a boost circuit includes: a first capacitor including a first terminal connected to an input terminal and a second terminal connected to a reference potential terminal; a first rectification element; a second capacitor including a first terminal connected to the first terminal of the first capacitor through the first rectification element and a second terminal connected to the reference potential terminal; a voltage detection circuit including a voltage detection terminal connected to the first terminal of the second capacitor and a detection signal output terminal; and a boost circuit including a detection signal input terminal connected to the detection signal output terminal, a boost power input terminal connected to the first terminal of the first capacitor, and a boost power output terminal connected to a node between the first terminal of the second capacitor and the voltage detection terminal.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: March 18, 2025
    Assignee: ABLIC Inc.
    Inventors: Fumiyasu Utsunomiya, Takakuni Douseki, Ami Tanaka
  • Patent number: 12245923
    Abstract: A power generation sensor, generating electric power using a liquid, includes: a base; a positive electrode for power generation disposed in a first direction of the base and containing a first material; a negative electrode for power generation disposed in the first direction and containing a second material; a first connector electrode connected to a one-side end of the positive electrode in the first direction and to a sensor module; and a second connector electrode connected to a one-side end of the negative electrode in the first direction and to the sensor module. The first connector electrode contains the first material and has a larger width in a second direction orthogonal to the first direction than the positive electrode in the second direction. The second connector electrode contains the second material and has a larger width in the second direction than the negative electrode in the second direction.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: March 11, 2025
    Assignees: The Ritsumeikan Trust, ABLIC Inc.
    Inventors: Takakuni Douseki, Ami Tanaka, Shiyuya Imoto, Fumiyasu Utsunomiya
  • Patent number: 12032006
    Abstract: Provided is a battery-less sensor circuit including a power generation element, a first switching element, a voltage control circuit, a first storage capacitor, a sensor circuit, and a load. The power generation element is connected to the first storage capacitor via the first switching element. A power supply terminal of the sensor circuit is connected to an input terminal of the first switching element. The voltage control circuit is configured to control a current passing through the first switching element through reception of a voltage of the input terminal of the first switching element. The load is connected to the first storage capacitor and the sensor circuit.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: July 9, 2024
    Assignee: ABLIC INC.
    Inventors: Fumiyasu Utsunomiya, Takakuni Douseki, Ami Tanaka, Yasuhiro Hiraga, Shunta Furumura
  • Publication number: 20240185012
    Abstract: A two-dimensional code 100 includes a plurality of lines L arranged in a second direction (X direction) at an interval S, and each line L includes a plurality of cells that indicate a plurality of bits and are arranged in series in a first direction (Y direction) orthogonal to the second direction. Each of the plurality of cells is either a first data cell 101 indicating a first value out of two values that the bits indicate, or a second data cell 102 indicating a second value out of the two values that the bits indicate. The first data cell includes a first density region 103 indicating the first value at a first position in the second direction. The second data cell includes a second density region 104 indicating the second value at the first position, and a third density region 105 adjacent to the second density region in the second direction.
    Type: Application
    Filed: January 24, 2024
    Publication date: June 6, 2024
    Applicants: The Ritsumeikan Trust, Nozaki Insatsu Shigyo Co., LTD.
    Inventors: Takakuni DOUSEKI, Yohei FUKUMIZU, Junichi MISAWA, Kentaro KIMURA
  • Publication number: 20240003718
    Abstract: A power generation sensor includes: a housing body in which a module receiving a generated power is housed; a module with a first connector electrode disposed on a front face; a second connector electrode disposed on an inner face of the housing body connected to the first connector electrode; and a power generation electrode connected to the second connector electrode.
    Type: Application
    Filed: May 26, 2023
    Publication date: January 4, 2024
    Applicants: The Ritsumeikan Trust, ABLIC Inc.
    Inventors: Takakuni DOUSEKI, Ami TANAKA, Shiyuya IMOTO, Fumiyasu UTSUNOMIYA
  • Publication number: 20240004099
    Abstract: A power generation sensor, generating electric power using a liquid, includes: a base; a positive electrode for power generation disposed in a first direction of the base and containing a first material; a negative electrode for power generation disposed in the first direction and containing a second material; a first connector electrode connected to a one-side end of the positive electrode in the first direction and to a sensor module; and a second connector electrode connected to a one-side end of the negative electrode in the first direction and to the sensor module. The first connector electrode contains the first material and has a larger width in a second direction orthogonal to the first direction than the positive electrode in the second direction. The second connector electrode contains the second material and has a larger width in the second direction than the negative electrode in the second direction.
    Type: Application
    Filed: June 7, 2023
    Publication date: January 4, 2024
    Applicants: The Ritsumeikan Trust, ABLIC Inc.
    Inventors: Takakuni DOUSEKI, Ami TANAKA, Shiyuya IMOTO, Fumiyasu UTSUNOMIYA
  • Publication number: 20230170802
    Abstract: An electronic device with a boost circuit includes: a first capacitor including a first terminal connected to an input terminal and a second terminal connected to a reference potential terminal; a first rectification element; a second capacitor including a first terminal connected to the first terminal of the first capacitor through the first rectification element and a second terminal connected to the reference potential terminal; a voltage detection circuit including a voltage detection terminal connected to the first terminal of the second capacitor and a detection signal output terminal; and a boost circuit including a detection signal input terminal connected to the detection signal output terminal, a boost power input terminal connected to the first terminal of the first capacitor, and a boost power output terminal connected to a node between the first terminal of the second capacitor and the voltage detection terminal.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 1, 2023
    Applicant: ABLIC Inc.
    Inventors: Fumiyasu UTSUNOMIYA, Takakuni DOUSEKI, Ami TANAKA
  • Publication number: 20230157903
    Abstract: Provided is a sensor having different sensitivities depending on the positions. A sensor 1 is a sensor for detecting the presence of a liquid, and includes a first electrode 11 and a second electrode 12. The first electrode and the second electrode each have a thread-like or band-like structure, and are arranged side by side in a direction intersecting a longitudinal direction. At least one of the first electrode and the second electrode includes a first portion 111 having a first surface area at a first position in the longitudinal direction, and includes a second portion 112 having a second surface area larger than the first surface area at a second position in the longitudinal direction different from the first position.
    Type: Application
    Filed: October 2, 2022
    Publication date: May 25, 2023
    Applicant: ABLIC Inc.
    Inventors: Fumiyasu UTSUNOMIYA, Ami TANAKA, Takakuni DOUSEKI, Shiyuya IMOTO
  • Publication number: 20230139575
    Abstract: Provided is a sensor device being a signal processing device, including: a capacitor; a sensor unit configured to wirelessly transmit, in a case in which electric power of a predetermined amount or more is accumulated in the capacitor, a first signal (SG1) through use of the electric power accumulated in the capacitor; a reception unit configured to receive a radio wave transmitted from a power transmission device being an external device; and a transmission antenna functioning as a second transmission unit, the transmission antenna being configured to wirelessly transmit, in response to reception of the radio wave, a response signal (SG3) being a second signal generated based on the received radio wave without using the electric power accumulated in the capacitor.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Inventors: Fumiyasu Utsunomiya, Takakuni Douseki, Hisashi Nishikawa, Fumiya Nishimura, Yuichiro Hirai, Ami Tanaka
  • Publication number: 20230130291
    Abstract: Provided is a battery-less sensor circuit including a power generation element, a first switching element, a voltage control circuit, a first storage capacitor, a sensor circuit, and a load. The power generation element is connected to the first storage capacitor via the first switching element. A power supply terminal of the sensor circuit is connected to an input terminal of the first switching element. The voltage control circuit is configured to control a current passing through the first switching element through reception of a voltage of the input terminal of the first switching element. The load is connected to the first storage capacitor and the sensor circuit.
    Type: Application
    Filed: October 25, 2022
    Publication date: April 27, 2023
    Inventors: Fumiyasu UTSUNOMIYA, Takakuni DOUSEKI, Ami TANAKA, Yasuhiro HIRAGA, Shunta FURUMURA
  • Patent number: 11523945
    Abstract: This replacement necessity assessment apparatus for an absorbent member includes: a power generator which is configured to generate power as a result of contact with liquid absorbed in the absorbent member, and of which power generation amount changes in accordance with an amount of the liquid; a signal output unit configured to output a detection signal according to the power generation amount; and a processing unit configured to acquire a parameter regarding the amount of the liquid based on the detection signal, the processing unit configured to determine, based on the parameter, whether or not replacement of the absorbent member is necessary.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: December 13, 2022
    Assignees: The Ritsumeikan Trust, ABLIC Inc.
    Inventors: Takakuni Douseki, Ami Tanaka, Ryota Suematsu, Hiroya Sakamoto
  • Patent number: 11480464
    Abstract: Provided is an optical sensor including: a first photodetector including a first photodiode and having a first wavelength sensitivity characteristic; a first resistor having one end connected to a cathode of the first photodiode, and another end connected to a ground point; a second photodetector including a second photodiode and having a second wavelength sensitivity characteristic; a second resistor having one end connected to a cathode of the second photodiode, and another end connected to the ground point; and an amplifier circuit having a first input terminal connected to the first photodiode, a second input terminal connected to the second photodiode, and an output terminal configured to output a potential based on a potential of the first input terminal and a potential of the second input terminal, and using, as an operating power supply, electric power generated by electromotive force of the first photodetector and the second photodetector.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: October 25, 2022
    Assignee: ABLIC INC.
    Inventors: Fumiyasu Utsunomiya, Takakuni Douseki, Ami Tanaka
  • Publication number: 20220302829
    Abstract: An electronic device including a boost circuit includes a first boost circuit, a first output circuit, a load, a first storage capacitor, a second storage capacitor, and an input terminal, wherein the input terminal is connected to the first storage capacitor and the first boost circuit, the second storage capacitor is connected to the first boost circuit and the first output circuit, and the load is connected to the first output circuit.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 22, 2022
    Inventors: Fumiyasu UTSUNOMIYA, Takakuni DOUSEKI, Ami TANAKA
  • Patent number: 11310971
    Abstract: A plant cultivation system includes: a first sensor configured to output a sensor signal corresponding to an amount of water in a plant; a second sensor configured to output a sensor signal corresponding to a measurement value of an environment condition; and a controller, wherein the controller is configured to, by using a sensor signal from the first sensor obtained by the first sensor measuring a plant to be cultivated and a sensor signal from the second sensor obtained by the second sensor measuring an environment for cultivating the plant to be cultivated, control a specific environment parameter corresponding to the environment condition and measured by the second sensor, in a cultivation environment for the plant to be cultivated.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: April 26, 2022
    Assignees: The Ritsumeikan Trust, ABLIC Inc.
    Inventors: Takakuni Douseki, Ami Tanaka, Syuuichi Okamoto, Ryoma Furumori, Fumiyasu Utsunomiya
  • Publication number: 20210251160
    Abstract: A plant cultivation system includes: a first sensor configured to output a sensor signal corresponding to an amount of water in a plant; a second sensor configured to output a sensor signal corresponding to a measurement value of an environment condition; and a controller, wherein the controller is configured to, by using a sensor signal from the first sensor obtained by the first sensor measuring a plant to be cultivated and a sensor signal from the second sensor obtained by the second sensor measuring an environment for cultivating the plant to be cultivated, control a specific environment parameter corresponding to the environment condition and measured by the second sensor, in a cultivation environment for the plant to be cultivated.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 19, 2021
    Applicants: The Ritsumeikan Trust, ABLIC Inc.
    Inventors: Takakuni DOUSEKI, Ami TANAKA, Syuuichi OKAMOTO, Ryoma FURUMORI, Fumiyasu UTSUNOMIYA
  • Publication number: 20210123803
    Abstract: Provided is an optical sensor including: a first photodetector including a first photodiode and having a first wavelength sensitivity characteristic; a first resistor having one end connected to a cathode of the first photodiode, and another end connected to a ground point; a second photodetector including a second photodiode and having a second wavelength sensitivity characteristic; a second resistor having one end connected to a cathode of the second photodiode, and another end connected to the ground point; and an amplifier circuit having a first input terminal connected to the first photodiode, a second input terminal connected to the second photodiode, and an output terminal configured to output a potential based on a potential of the first input terminal and a potential of the second input terminal, and using, as an operating power supply, electric power generated by electromotive force of the first photodetector and the second photodetector.
    Type: Application
    Filed: October 28, 2020
    Publication date: April 29, 2021
    Inventors: Fumiyasu UTSUNOMIYA, Takakuni DOUSEKI, Ami TANAKA
  • Patent number: 10794770
    Abstract: A signal detection circuit includes: a power terminal; a first current limitation circuit; a second current limitation circuit; a current-voltage conversion circuit; a first p-channel MOS transistor including a source, a gat, and a drain; a first n-channel MOS transistor including a drain, a gate, and a source; and a second n-channel MOS transistor in which a drain is connected to a first connection point connecting the resistor with the drain of the first n-channel MOS transistor, a gate is connected to a second connection point connecting the drain of the first p-channel MOS transistor with the current-voltage conversion circuit, and a source is grounded.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: October 6, 2020
    Assignees: ABLIC INC., THE RITSUMEIKAN TRUST
    Inventors: Fumiyasu Utsunomiya, Takakuni Douseki, Ami Tanaka
  • Publication number: 20200046573
    Abstract: This replacement necessity assessment apparatus for an absorbent member includes: a power generator which is configured to generate power as a result of contact with liquid absorbed in the absorbent member, and of which power generation amount changes in accordance with an amount of the liquid; a signal output unit configured to output a detection signal according to the power generation amount; and a processing unit configured to acquire a parameter regarding the amount of the liquid based on the detection signal, the processing unit configured to determine, based on the parameter, whether or not replacement of the absorbent member is necessary.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 13, 2020
    Applicants: The Ritsumeikan Trust, ABLIC Inc.
    Inventors: Takakuni DOUSEKI, Ami TANAKA, Ryota SUEMATSU, Hiroya SAKAMOTO
  • Patent number: 10447155
    Abstract: A power source device has: a storage unit configured to receive a generated power and store as a storage power; a boost unit configured to generate, from a storage power supplied from the storage unit, a boosted power having a higher voltage than a voltage of the storage power, and supply the boosted power to a load; and a voltage detection unit configured to output a boost operation permission signal permitting a boost operation of the boost unit to the boost unit when the storage voltage of the boost unit increases to become a voltage equal to or higher than a minimum operation voltage of the boost unit. The boost unit is configured to start the boost operation by the storage power supplied from the storage unit and operates on the boosted power generated by the boost operation as an operation power source when the boost operation permission signal is output from the voltage detection unit.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: October 15, 2019
    Assignees: ABLIC INC., THE RITSUMEIKAN TRUST
    Inventors: Fumiyasu Utsunomiya, Takakuni Douseki, Ami Tanaka