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).
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Patent number: 12243831Abstract: 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: GrantFiled: December 16, 2021Date of Patent: March 4, 2025Assignee: JVCKENWOOD CorporationInventor: Takayuki Iwasa
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Publication number: 20240236476Abstract: 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: ApplicationFiled: January 3, 2024Publication date: July 11, 2024Inventors: Haruhisa UEDA, Nagisa YANAGIBASHI, Taro FUCHIGAMI, Takahiro AKIMOTO, Yoshitaka HASHIMOTO, Takayuki IWASA
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Publication number: 20240143091Abstract: 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: ApplicationFiled: January 3, 2024Publication date: May 2, 2024Inventors: Takahiro AKIMOTO, Yoshitaka HASHIMOTO, Taro FUCHIGAMI, Haruhisa UEDA, Nagisa YANAGIBASHI, Takayuki IWASA
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Publication number: 20240137643Abstract: 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: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Inventors: Haruhisa UEDA, Nagisa YANAGIBASHI, Taro FUCHIGAMI, Takahiro AKIMOTO, Yoshitaka HASHIMOTO, Takayuki IWASA
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Patent number: 11899327Abstract: 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: GrantFiled: May 25, 2023Date of Patent: February 13, 2024Assignee: JVCKENWOOD CorporationInventor: Takayuki Iwasa
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Publication number: 20230388631Abstract: 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: ApplicationFiled: May 8, 2023Publication date: November 30, 2023Inventor: Takayuki IWASA
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Publication number: 20230296948Abstract: 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: ApplicationFiled: May 25, 2023Publication date: September 21, 2023Inventor: Takayuki Iwasa
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Publication number: 20230205045Abstract: 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: ApplicationFiled: February 28, 2023Publication date: June 29, 2023Inventor: Takayuki Iwasa
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Patent number: 11473984Abstract: 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: GrantFiled: February 28, 2020Date of Patent: October 18, 2022Assignee: JVCKENWOOD CORPORATIONInventor: Takayuki Iwasa
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Patent number: 11417290Abstract: 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: GrantFiled: June 4, 2021Date of Patent: August 16, 2022Assignee: JVCKENWOOD CORPORATIONInventor: Takayuki Iwasa
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Publication number: 20220108958Abstract: 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: ApplicationFiled: December 16, 2021Publication date: April 7, 2022Inventor: Takayuki IWASA
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Patent number: 11287723Abstract: 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: GrantFiled: November 27, 2019Date of Patent: March 29, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yuto Suzuki, Takayuki Iwasa
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Patent number: 11287710Abstract: 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: GrantFiled: January 25, 2021Date of Patent: March 29, 2022Assignee: JVCKENWOOD CORPORATIONInventor: Takayuki Iwasa
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Patent number: 11145267Abstract: 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: GrantFiled: May 29, 2020Date of Patent: October 12, 2021Assignee: JVCKENWOOD CORPORATIONInventor: Takayuki Iwasa
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Publication number: 20210295791Abstract: 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: ApplicationFiled: June 4, 2021Publication date: September 23, 2021Inventor: Takayuki IWASA
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Patent number: 11054708Abstract: 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: GrantFiled: August 24, 2020Date of Patent: July 6, 2021Assignee: JVCKENWOOD CORPORATIONInventor: Takayuki Iwasa
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Publication number: 20210149264Abstract: 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: ApplicationFiled: January 25, 2021Publication date: May 20, 2021Inventor: Takayuki IWASA
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Patent number: 10957274Abstract: 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: GrantFiled: August 12, 2020Date of Patent: March 23, 2021Assignee: JVCKENWOOD CORPORATIONInventor: Takayuki Iwasa
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Publication number: 20210072608Abstract: 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: ApplicationFiled: August 24, 2020Publication date: March 11, 2021Inventor: Takayuki IWASA
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Publication number: 20210074235Abstract: 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: ApplicationFiled: August 12, 2020Publication date: March 11, 2021Inventor: Takayuki IWASA