Patents by Inventor Naoji MATSUHISA

Naoji MATSUHISA 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: 11281874
    Abstract: A flexible sensing system includes: a flexible tag device including a first antenna, first sensor and second sensors, first modulation transistor and second modulation transistors connected to both ends of the first antenna, first ring oscillator that drives the first modulation transistor together with the first sensor, and a second ring oscillator that drives the second modulation transistor together with the second sensor; and a reader device that is flexible and includes a second antenna that is inductively coupled with the first antenna, extracts an output signal of the tag device for each frequency bandwidth, and corrects an output signal change of the tag device according to a coupling change between the first antenna and the second antenna.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 22, 2022
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Samsung Electronics Co., Ltd.
    Inventors: Simiao Niu, Weichen Wang, Naoji Matsuhisa, Gae Hwang Lee, Zhenan Bao
  • Publication number: 20210390273
    Abstract: A flexible sensing system includes: a flexible tag device including a first antenna, first sensor and second sensors, first modulation transistor and second modulation transistors connected to both ends of the first antenna, first ring oscillator that drives the first modulation transistor together with the first sensor, and a second ring oscillator that drives the second modulation transistor together with the second sensor; and a reader device that is flexible and includes a second antenna that is inductively coupled with the first antenna, extracts an output signal of the tag device for each frequency bandwidth, and corrects an output signal change of the tag device according to a coupling change between the first antenna and the second antenna.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 16, 2021
    Applicants: Samsung Electronics Co., Ltd., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Simiao NIU, Weichen WANG, Naoji MATSUHISA, Gae Hwang LEE, Zhenan BAO
  • Patent number: 11107601
    Abstract: The invention provides an elastic conductor which is excellent in stretchability and hardly causes a decrease in conductivity even when stretched. The elastic conductor includes an elastomer and two types of conductive particles, wherein the two types of conductive particles are flake-like particles and nanoparticles, and the conductive particles are dispersed throughout the elastomer.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: August 31, 2021
    Assignee: Japan Science and Technology Agency
    Inventors: Naoji Matsuhisa, Takao Someya, Daishi Inoue
  • Patent number: 11048990
    Abstract: One example is directed to a reader device having a first resonance circuit and being configured to interrogate one or more other remotely-located resonance circuits, each associated with a second resonance circuit which may be part of a passive sensor circuit. The first resonance circuit is operated to cause the inductively-coupled oscillating signal to be swept over a range of frequencies and therein cause a jump or sudden transition in a frequency of the oscillating signal while the first and second resonance circuits are in sufficient proximity for inductively-coupling via an oscillating signal via their respective resonance circuits. Sensing circuitry may be used to detect the jump or sudden transition in the frequency of the oscillating signal and, by way of or in response to an indication of timing and/or a set of inductively-related parameters, data is conveyed from the sensor to the reader device via the inductively-coupled oscillating signal.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 29, 2021
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Siavash Kananian, Ada Poon, Simiao Niu, Zhenan Bao, Naoji Matsuhisa, George Alexopoulos
  • Patent number: 10991764
    Abstract: A photodetector array of a stacked film comprises, a plurality of first electrodes formed on a substrate and extending in parallel in a first direction, a plurality of second electrodes extending in parallel in a second direction crossing the first electrodes, a first organic thin film diode and a second organic thin film diode disposed between each of the first electrodes and each of the second electrodes, and an intermediate connection electrode layer serving as a common anode or a common cathode. The intermediate connection electrode layer connects the first organic thin film diode and the second organic thin film diode by backward-diode connection. At least either the first electrodes or the second electrodes are transparent with light passing therethrough, the first organic thin film diode is a photoresponsive organic diode, and the second organic thin film diode is an organic rectifier diode.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: April 27, 2021
    Assignee: SIGNTLE INC.
    Inventors: Peter Zalar, Naoji Matsuhisa, Takao Someya
  • Publication number: 20200257946
    Abstract: One example is directed to a reader device having a first resonance circuit and being configured to interrogate one or more other remotely-located resonance circuits, each associated with a second resonance circuit which may be part of a passive sensor circuit. The first resonance circuit is operated to cause the inductively-coupled oscillating signal to be swept over a range of frequencies and therein cause a jump or sudden transition in a frequency of the oscillating signal while the first and second resonance circuits are in sufficient proximity for inductively-coupling via an oscillating signal via their respective resonance circuits. Sensing circuitry may be used to detect the jump or sudden transition in the frequency of the oscillating signal and, by way of or in response to an indication of timing and/or a set of inductively-related parameters, data is conveyed from the sensor to the reader device via the inductively-coupled oscillating signal.
    Type: Application
    Filed: February 12, 2020
    Publication date: August 13, 2020
    Inventors: Siavash Kananian, Ada Poon, Simiao Niu, Zhenan Bao, Naoji Matsuhisa, George Alexopoulos
  • Patent number: 10635868
    Abstract: An example embodiment provides a sensor system including a tag unit and a readout unit. The tag unit includes a first sensor having a stretchable antenna and a stretchable resistor. The tag unit may be configured to create a sensing signal corresponding to a degree of stretching of the stretchable resistor, transmit the sensing signal to the readout unit through the stretchable antenna, and operate in a first region corresponding to a first frequency. The readout unit may be inductively coupled to the tag unit and may be configured to receive and read out the sensing signal, and operate in a second region corresponding to a second frequency. The first frequency may range 30 MHz to 50 MHz, and the second frequency may be different from the first frequency.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 28, 2020
    Assignees: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Junior University
    Inventors: Youngjun Yun, Naoji Matsuhisa, Simiao Niu, Zhenan Bao, William Burnett
  • Publication number: 20200082957
    Abstract: The invention provides an elastic conductor which is excellent in stretchability and hardly causes a decrease in conductivity even when stretched. The elastic conductor includes an elastomer and two types of conductive particles, wherein the two types of conductive particles are flake-like particles and nanoparticles, and the conductive particles are dispersed throughout the elastomer.
    Type: Application
    Filed: December 14, 2017
    Publication date: March 12, 2020
    Applicant: Japan Science and Technology Agency
    Inventors: Naoji Matsuhisa, Takao Someya, Daishi Inoue
  • Publication number: 20190378880
    Abstract: There is provide a photodetector array of a stacked film, which comprises a plurality of first electrodes formed on a substrate and extending in parallel in a first direction, a plurality of second electrodes extending in parallel in a second direction crossing the first electrodes, a first organic thin film diode and a second organic thin film diode disposed between each of the first electrodes and each of the second electrodes, and an intermediate connection electrode layer serving as a common anode or a common cathode. The intermediate connection electrode layer connects the first organic thin film diode and the second organic thin film diode by backward-diode connection. At least either the first electrodes or the second electrodes are transparent with light passing therethrough, the first organic thin film diode is a photoresponsive organic diode, and the second organic thin film diode is an organic rectifier diode.
    Type: Application
    Filed: January 11, 2018
    Publication date: December 12, 2019
    Applicant: SIGNTLE INC.
    Inventors: Peter ZALAR, Naoji MATSUHISA, Takao SOMEYA
  • Patent number: 10176903
    Abstract: A stretchable conductor of the present invention includes: a mixture which is configured of a stretchable portion made of an elastomer, and at least one type of conductive particles dispersed in the stretchable portion; and a conducting portion in which the conductive particles are aggregated in a higher concentration at one or a plurality of positions on an interface of the mixture than that at positions located in an inner portion of the mixture.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: January 8, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tsuyoshi Sekitani, Takao Someya, Naoji Matsuhisa
  • Publication number: 20170169914
    Abstract: A stretchable conductor of the present invention includes: a mixture which is configured of a stretchable portion made of an elastomer, and at least one type of conductive particles dispersed in the stretchable portion; and a conducting portion in which the conductive particles are aggregated in a higher concentration at one or a plurality of positions on an interface of the mixture than that at positions located in an inner portion of the mixture.
    Type: Application
    Filed: February 5, 2015
    Publication date: June 15, 2017
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tsuyoshi SEKITANI, Takao SOMEYA, Naoji MATSUHISA