Patents by Inventor Takayuki Iwasa

Takayuki Iwasa 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: 12243831
    Abstract: A semiconductor wafer includes: a rectangular circuit formation region provided on the semiconductor wafer; an electronic circuit formed in the circuit formation region; a first seal ring formed along each of four outer peripheral parts of the circuit formation region so as to surround an outer periphery of the circuit formation region; and a second seal ring formed, in parallel with the first seal ring, on outer peripheral parts other than at least one outer peripheral part out of the four outer peripheral parts of the circuit formation region.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: March 4, 2025
    Assignee: JVCKENWOOD Corporation
    Inventor: Takayuki Iwasa
  • Publication number: 20240236476
    Abstract: An electronic apparatus includes an operation member that is rotationally operable, a rotational operation detector configured to detect a rotational operation onto the operation member, a touch operation detector configured to detect a touch operation onto the operation member, a state detector configured to detect a state of the electronic apparatus, and a processor configured to execute the instructions to execute a function in accordance with the rotational operation and the touch operation, and change setting about the rotational operation and the touch operation in accordance with the state.
    Type: Application
    Filed: January 3, 2024
    Publication date: July 11, 2024
    Inventors: Haruhisa UEDA, Nagisa YANAGIBASHI, Taro FUCHIGAMI, Takahiro AKIMOTO, Yoshitaka HASHIMOTO, Takayuki IWASA
  • Publication number: 20240143091
    Abstract: An electronic apparatus includes an operation member that is rotationally operable, a rotation detection substrate provided with a rotation detector configured to detect rotation of the operation member, a capacitance detector provided inside the operation member and configured to output a detection signal in accordance with capacitance, a signal transfer unit configured to transfer the detection signal to the rotation detection substrate, and a touch operation detector to which the detection signal is input through the rotation detection substrate, the touch operation detector being configured to detect a tap operation and a slide operation as a touch operation onto an outer surface of the operation member based on change in the detection signal due to the touch operation.
    Type: Application
    Filed: January 3, 2024
    Publication date: May 2, 2024
    Inventors: Takahiro AKIMOTO, Yoshitaka HASHIMOTO, Taro FUCHIGAMI, Haruhisa UEDA, Nagisa YANAGIBASHI, Takayuki IWASA
  • Publication number: 20240137643
    Abstract: An electronic apparatus includes an operation member that is rotationally operable, a rotational operation detector configured to detect a rotational operation onto the operation member, a touch operation detector configured to detect a touch operation onto the operation member, a state detector configured to detect a state of the electronic apparatus, and a processor configured to execute the instructions to execute a function in accordance with the rotational operation and the touch operation, and change setting about the rotational operation and the touch operation in accordance with the state.
    Type: Application
    Filed: January 3, 2024
    Publication date: April 25, 2024
    Inventors: Haruhisa UEDA, Nagisa YANAGIBASHI, Taro FUCHIGAMI, Takahiro AKIMOTO, Yoshitaka HASHIMOTO, Takayuki IWASA
  • Patent number: 11899327
    Abstract: Each of multiple pixels of a spatial light modulator of an optical node device includes: a first switching circuit and a first signal holding circuit that sample and hold normal gradation data or inverted gradation data; and a second switching circuit and a second signal holding circuit that sample the normal or inverted gradation data held in the first signal holding circuit at a common timing to the multiple pixels, hold the normal or inverted gradation data for one subframe period, and apply the normal or inverted gradation data to a reflective electrode. The spatial light modulator drive unit applies alternating current voltage having positive polarity and a negative polarity to liquid crystal by inverting voltage in a common electrode of a liquid crystal display element and supplies a voltage having an amplitude different from an amplitude between the normal and inverted gradation data to the common electrode.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: February 13, 2024
    Assignee: JVCKENWOOD Corporation
    Inventor: Takayuki Iwasa
  • Publication number: 20230388631
    Abstract: An electronic apparatus includes a vibrating unit configured to vibrate to notify a user of a predetermined state, and a grip portion to be gripped by the user. The grip portion includes a first vibration area and a second vibration area each having a transmission structure of vibration generated by the vibrating unit and a non-vibration area having no transmission structure.
    Type: Application
    Filed: May 8, 2023
    Publication date: November 30, 2023
    Inventor: Takayuki IWASA
  • Publication number: 20230296948
    Abstract: Each of multiple pixels of a spatial light modulator of an optical node device includes: a first switching circuit and a first signal holding circuit that sample and hold normal gradation data or inverted gradation data; and a second switching circuit and a second signal holding circuit that sample the normal or inverted gradation data held in the first signal holding circuit at a common timing to the multiple pixels, hold the normal or inverted gradation data for one subframe period, and apply the normal or inverted gradation data to a reflective electrode. The spatial light modulator drive unit applies alternating current voltage having positive polarity and a negative polarity to liquid crystal by inverting voltage in a common electrode of a liquid crystal display element and supplies a voltage having an amplitude different from an amplitude between the normal and inverted gradation data to the common electrode.
    Type: Application
    Filed: May 25, 2023
    Publication date: September 21, 2023
    Inventor: Takayuki Iwasa
  • Publication number: 20230205045
    Abstract: An optical node device including a liquid crystal display device with pixels having a first transistor between a positive-polarity pixel data line and a first holding capacitor with a gate for a row scan signal, a second transistor between a negative-polarity pixel data line and a second holding capacitor with a gate for the row scan signal, a fifth transistor between a pixel electrode and a first source follower circuit where a voltage from the first holding capacitor is input with a gate for a first control signal, and a sixth transistor between the pixel electrode and a second source follower circuit where a voltage from the second holding capacitor is input with a gate for a second control signal turned on alternately with the first control signal. The fifth and sixth transistors have a threshold voltage different from that of other transistors of a first conductivity type.
    Type: Application
    Filed: February 28, 2023
    Publication date: June 29, 2023
    Inventor: Takayuki Iwasa
  • Patent number: 11473984
    Abstract: According to one embodiment, a reflective liquid crystal display apparatus includes a plurality of pixels and a temperature sensor. Further, the temperature sensor included in the reflective liquid crystal display apparatus is formed in one or more regions among a plurality of pixel regions partitioned into rows and columns. The reflective liquid crystal display apparatus can thereby measure the temperature of the pixels more accurately at real time compared with the case of using a temperature sensor attached onto a heatsink.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 18, 2022
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Patent number: 11417290
    Abstract: A liquid crystal display apparatus includes a shift register unit that sequentially takes in a video signal including s-bit width for the number of columns of a plurality of pixels, a 1-line latch unit that concurrently outputs a plurality of the video signals taken by the shift register unit, comparator units that convert the plurality of video signals output from the 1-line latch unit into a plurality of analog voltages, respectively, and an analog switch unit that switches whether or not the plurality of analog voltages are supplied to the plurality of data lines, respectively.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: August 16, 2022
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Publication number: 20220108958
    Abstract: A semiconductor wafer includes: a rectangular circuit formation region provided on the semiconductor wafer; an electronic circuit formed in the circuit formation region; a first seal ring formed along each of four outer peripheral parts of the circuit formation region so as to surround an outer periphery of the circuit formation region; and a second seal ring formed, in parallel with the first seal ring, on outer peripheral parts other than at least one outer peripheral part out of the four outer peripheral parts of the circuit formation region.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Inventor: Takayuki IWASA
  • Patent number: 11287723
    Abstract: A rotational operation device that is capable of setting an operation mode corresponding to a user's intention even when rotation of a rotational operation member stops on the way during a rotational operation. A rotational operation member is rotatable around a rotation axis. A click force application mechanism applies click force to the rotational operation member according to its rotational operation. A detection unit detects rotation of the rotational operation member. A setting unit sets one operation mode from among a plurality of predetermined operation modes in response to a detection output of the detection unit. The setting unit switches the operation mode according to a rotational operation of the rotational operation member before a position where the click force applied to the rotational operation member by the click force application mechanism becomes zero in a case where the rotational operation member is rotated in a first direction.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: March 29, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuto Suzuki, Takayuki Iwasa
  • Patent number: 11287710
    Abstract: According to an embodiment, a liquid crystal display apparatus includes a plurality of sense amplifiers for amplifying respective potential differences between a plurality of positive-polarity pixel drive voltages read out from a plurality of pixels of a row to be inspected to a plurality of first data lines and a plurality of negative-polarity pixel drive voltages read out from the plurality of pixels of the row to be inspected to a plurality of second data lines, each of the pixels including a switch transistor for switching whether a positive-polarity pixel drive voltage applied to a pixel drive electrode is output to a corresponding first data line, and a switch transistor for switching whether a negative-polarity pixel drive voltage applied to the pixel drive electrode is supplied to a corresponding second data line.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: March 29, 2022
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Patent number: 11145267
    Abstract: According to an embodiment, a liquid crystal display device includes a plurality of pixels and a control circuit, each of the pixels includes a first switch, a second switch, a first storage unit, a second storage unit, a liquid crystal display element, and a control circuit, and the control circuit is configured to simultaneously overwrite the subframe data held in the first storage unit provided in each of the plurality of pixels with fixed data, and to simultaneously transfer the fixed data held in the first storage unit to the second storage unit by turning on the second switch provided in each of the plurality of pixels.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 12, 2021
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Publication number: 20210295791
    Abstract: A liquid crystal display apparatus includes a shift register unit that sequentially takes in a video signal including s-bit width for the number of columns of a plurality of pixels, a 1-line latch unit that concurrently outputs a plurality of the video signals taken by the shift register unit, comparator units that convert the plurality of video signals output from the 1-line latch unit into a plurality of analog voltages, respectively, and an analog switch unit that switches whether or not the plurality of analog voltages are supplied to the plurality of data lines, respectively.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventor: Takayuki IWASA
  • Patent number: 11054708
    Abstract: A liquid crystal display apparatus includes a plurality of sense amplifiers configured to amplify respective potential differences between a plurality of positive-polarity pixel drive voltages read out from a plurality of pixels of a row to be inspected to a plurality of positive-polarity data lines and a plurality of negative-polarity pixel drive voltages read out from a plurality of pixels of a row to be inspected to a plurality of negative-polarity data lines, in which each of the pixels includes a first switch transistor configured to switch whether or not to output a positive-polarity pixel drive voltage before it is applied to a pixel drive electrode to a corresponding positive-polarity data line and a second switch transistor configured to switch whether or not to supply a negative-polarity pixel drive voltage before it is applied to the pixel drive electrode to a corresponding negative-polarity data line.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: July 6, 2021
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Publication number: 20210149264
    Abstract: According to an embodiment, a liquid crystal display apparatus includes a plurality of sense amplifiers for amplifying respective potential differences between a plurality of positive-polarity pixel drive voltages read out from a plurality of pixels of a row to be inspected to a plurality of first data lines and a plurality of negative-polarity pixel drive voltages read out from the plurality of pixels of the row to be inspected to a plurality of second data lines, each of the pixels including a switch transistor for switching whether a positive-polarity pixel drive voltage applied to a pixel drive electrode is output to a corresponding first data line, and a switch transistor for switching whether a negative-polarity pixel drive voltage applied to the pixel drive electrode is supplied to a corresponding second data line.
    Type: Application
    Filed: January 25, 2021
    Publication date: May 20, 2021
    Inventor: Takayuki IWASA
  • Patent number: 10957274
    Abstract: A liquid crystal display apparatus includes a plurality of pixels that form a plurality of pixel pairs, each of the pixel pairs being adjacent two pixels in one column, in which, in each of the pixel pairs, a first switch transistor that switches whether or not to output a voltage of a video signal written into one of the pixels to a corresponding data line and a second switch transistor that switches whether or not to output a voltage of a video signal written into the other one of the pixels to a corresponding data line are composed in such a way that they are controlled to be turned on or off by a common switch selection signal for reading.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: March 23, 2021
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Publication number: 20210072608
    Abstract: A liquid crystal display apparatus includes a plurality of sense amplifiers configured to amplify respective potential differences between a plurality of positive-polarity pixel drive voltages read out from a plurality of pixels of a row to be inspected to a plurality of positive-polarity data lines and a plurality of negative-polarity pixel drive voltages read out from a plurality of pixels of a row to be inspected to a plurality of negative-polarity data lines, in which each of the pixels includes a first switch transistor configured to switch whether or not to output a positive-polarity pixel drive voltage before it is applied to a pixel drive electrode to a corresponding positive-polarity data line and a second switch transistor configured to switch whether or not to supply a negative-polarity pixel drive voltage before it is applied to the pixel drive electrode to a corresponding negative-polarity data line.
    Type: Application
    Filed: August 24, 2020
    Publication date: March 11, 2021
    Inventor: Takayuki IWASA
  • Publication number: 20210074235
    Abstract: A liquid crystal display apparatus includes a plurality of pixels that form a plurality of pixel pairs, each of the pixel pairs being adjacent two pixels in one column, in which, in each of the pixel pairs, a first switch transistor that switches whether or not to output a voltage of a video signal written into one of the pixels to a corresponding data line and a second switch transistor that switches whether or not to output a voltage of a video signal written into the other one of the pixels to a corresponding data line are composed in such a way that they are controlled to be turned on or off by a common switch selection signal for reading.
    Type: Application
    Filed: August 12, 2020
    Publication date: March 11, 2021
    Inventor: Takayuki IWASA