Patents by Inventor Kyohei Naito
Kyohei Naito 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: 11962801Abstract: An image decoding device includes: a prediction signal generation unit that generates a prediction signal by intra prediction, wherein in a block to which intra sub-partitions are applied, the prediction signal generation unit refers to a pixel of a decoded block adjacent to the block when generating prediction signals of all sub-blocks in the block.Type: GrantFiled: March 2, 2020Date of Patent: April 16, 2024Assignee: KDDI CORPORATIONInventors: Kyohei Unno, Yoshitaka Kidani, Kei Kawamura, Sei Naito
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Publication number: 20240114165Abstract: An image decoding device includes a prediction unit configured to generate a prediction signal included in a prediction block based on a motion vector. The prediction unit is configured to perform refinement processing of setting a search range based on a reference position specified by the motion vector, specifying a corrected reference position having the smallest predetermined cost from the search range, and correcting the motion vector based on the corrected reference position. When a block size of the prediction block is larger than a predetermined block size, the prediction unit is configured to divide the prediction block into sub-block groups and perform the refinement processing for each sub-block.Type: ApplicationFiled: December 15, 2023Publication date: April 4, 2024Applicant: KDDI CORPORATIONInventors: Kyohei UNNO, Kei KAWAMURA, Sei NAITO
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Patent number: 11949860Abstract: An image decoding device, includes a filter unit using, as an input, a decoded signal prior to the filtering process and output a filtered decoded signal. The filter unit performs clipping processing on the decoded signal prior to the filtering process such that the absolute value of a differential value between a reference pixel value and a pixel value of the decoded signal prior to the filtering process is less than or equal to a predefined threshold value, and to generate the filtered decoded signal through the linear weighted addition of the value after the clipping processing is performed and the pixel value of the decoded signal prior to the filtering process; and a large-small relationship between the threshold value for a luma signal and the threshold value for a chroma signal are defined such that the large-small relationship is unchanged when an internal bit depth is changed.Type: GrantFiled: June 30, 2022Date of Patent: April 2, 2024Assignee: KDDI CorporationInventors: Kyohei Unno, Kei Kawamura, Sei Naito
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Patent number: 11607884Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: GrantFiled: March 25, 2022Date of Patent: March 21, 2023Assignee: Brother Kogyo Kabushiki KaishaInventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Patent number: 11569429Abstract: S1 is a sum of the areas of a plurality of individual electrodes formed on a first plane of a piezoelectric body of a liquid discharge head, S2 is an area of a first common electrode formed on a second plane, S3 is an area of a second common electrode formed on a third plane, D1 is a distance between a neutral plane and the first plane in a stacking direction, D2 is the distance between the neutral plane and the second plane in the stacking direction, and D3 is the distance between the neutral plane and the third plane in the stacking direction. Then, D1×S1+D2×S2>D3×S3 is satisfied. The liquid discharge head includes a plurality of conductor layers which are formed on the third plane, without contact with the second common electrode and without contact with each other.Type: GrantFiled: September 27, 2018Date of Patent: January 31, 2023Assignee: Brother Kogyo Kabushiki KaishaInventors: Kyohei Naito, Takashi Aiba, Keiji Kura
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Patent number: 11538978Abstract: There is provided a liquid discharge head including a piezoelectric body having a plurality of individual electrodes and a first common electrode, and a plurality of conductor layers. The plurality of individual electrodes have first to fourth individual electrode arrays, and the first common electrode has first and second extending portions, a plurality of first projecting portions, and a plurality of second projecting portions. Each of the first projecting portions overlaps partially with one of the plurality of individual electrodes forming the second individual electrode array along the stacking direction, and each of the second projecting portions overlaps partially with one of the plurality of individual electrodes forming the third individual electrode array along the stacking direction.Type: GrantFiled: September 27, 2018Date of Patent: December 27, 2022Assignee: Brother Kogyo Kabushiki KaishaInventors: Kyohei Naito, Takashi Aiba, Keiji Kura
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Publication number: 20220212471Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: ApplicationFiled: March 25, 2022Publication date: July 7, 2022Inventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Patent number: 11305533Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: GrantFiled: December 8, 2020Date of Patent: April 19, 2022Assignee: Brother Kogyo Kabushiki KaishaInventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Publication number: 20210086514Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: ApplicationFiled: December 8, 2020Publication date: March 25, 2021Inventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Patent number: 10882317Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: GrantFiled: March 18, 2020Date of Patent: January 5, 2021Assignee: Brother Kogyo Kabushiki KaishaInventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Publication number: 20200276816Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: ApplicationFiled: March 18, 2020Publication date: September 3, 2020Inventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Patent number: 10639891Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: GrantFiled: August 3, 2018Date of Patent: May 5, 2020Assignee: Brother Kogyo Kabushiki KaishaInventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Patent number: 10603913Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: GrantFiled: August 3, 2018Date of Patent: March 31, 2020Assignee: Brother Kogyo Kabushiki KaishaInventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Patent number: 10369791Abstract: There is provided an ink-jet head including: first and second head chips each formed with two first nozzle arrays extending in a first direction, each of the first nozzle arrays including first nozzles corresponding to a first ink, second nozzles corresponding to a second ink, and third nozzles corresponding to a third ink; third and fourth head chips each formed with two third nozzle arrays extending in the first direction, each of the third nozzle arrays including fourth nozzles corresponding to the fourth ink. The first head chip to the fourth head chip are arranged in parallel in a second direction orthogonal to the first direction.Type: GrantFiled: March 6, 2018Date of Patent: August 6, 2019Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasuo Kato, Kyohei Naito
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Patent number: 10369789Abstract: A liquid ejection device is disclosed. One liquid ejection device includes a plurality of first contacts connected to a plurality of first piezoelectric elements, respectively, and positioned at a more outer position than a first piezoelectric element row and a second piezoelectric element row from a center of the device in a second direction. The liquid ejection device includes a plurality of second contacts connected to a plurality of second piezoelectric elements, respectively, and positioned at a more outer position than a third piezoelectric element row and a fourth piezoelectric element row from the center of the liquid ejection device in the second direction.Type: GrantFiled: April 9, 2018Date of Patent: August 6, 2019Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Kyohei Naito
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Patent number: 10343399Abstract: A liquid jetting apparatus includes: a channel substrate having a pressure chamber which is long in a first direction; an insulating film provided on the channel substrate to cover the pressure chamber; a piezoelectric film overlapping with the insulating film and having first and second portions, the first portion overlapping with a central portion of the pressure chamber in the first direction, the second portion extending from the first portion in the first direction beyond the pressure chamber, the first portion having a width in a second direction which is smaller than a width of the pressure chamber in the second direction; a first electrode arranged between the insulating film and the piezoelectric film; and a second electrode facing the first electrode with the piezoelectric film being sandwiched therebetween. The insulating film has a thin-walled portion formed at a portion overlapping with the second portion of the piezoelectric film.Type: GrantFiled: September 29, 2017Date of Patent: July 9, 2019Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Kyohei Naito
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Publication number: 20190103545Abstract: There is provided a liquid discharge head including a piezoelectric body having a plurality of individual electrodes and a first common electrode, and a plurality of conductor layers. The plurality of individual electrodes have first to fourth individual electrode arrays, and the first common electrode has first and second extending portions, a plurality of first projecting portions, and a plurality of second projecting portions. Each of the first projecting portions overlaps partially with one of the plurality of individual electrodes forming the second individual electrode array along the stacking direction, and each of the second projecting portions overlaps partially with one of the plurality of individual electrodes forming the third individual electrode array along the stacking direction.Type: ApplicationFiled: September 27, 2018Publication date: April 4, 2019Inventors: Kyohei Naito, Takashi Aiba, Keiji Kura
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Publication number: 20190103544Abstract: S1 is a sum of the areas of a plurality of individual electrodes formed on a first plane of a piezoelectric body of a liquid discharge head, S2 is an area of a first common electrode formed on a second plane, S3 is an area of a second common electrode formed on a third plane, D1 is a distance between a neutral plane and the first plane in a stacking direction, D2 is the distance between the neutral plane and the second plane in the stacking direction, and D3 is the distance between the neutral plane and the third plane in the stacking direction. Then, D1×S1+D2×S2>D3×S3 is satisfied. The liquid discharge head includes a plurality of conductor layers which are formed on the third plane, without contact with the second common electrode and without contact with each other.Type: ApplicationFiled: September 27, 2018Publication date: April 4, 2019Inventors: Kyohei Naito, Takashi Aiba, Keiji Kura
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Publication number: 20190030892Abstract: A liquid discharge apparatus is provided, including a liquid discharge head including: an upper substrate, a plurality of piezoelectric elements, an intermediate substrate, a lower substrate and a plurality of individual traces arranged on the upper substrate and extending toward the contacts arranged on the one end side in the second direction from the plurality of piezoelectric elements respectively.Type: ApplicationFiled: August 3, 2018Publication date: January 31, 2019Inventors: Kyohei Naito, Shohei Koide, Jiro Yamamoto
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Publication number: 20180290447Abstract: There is provided an ink-jet head including: first and second head chips each formed with two first nozzle arrays extending in a first direction, each of the first nozzle arrays including first nozzles corresponding to a first ink, second nozzles corresponding to a second ink, and third nozzles corresponding to a third ink; third and fourth head chips each formed with two third nozzle arrays extending in the first direction, each of the third nozzle arrays including fourth nozzles corresponding to the fourth ink. The first head chip to the fourth head chip are arranged in parallel in a second direction orthogonal to the first direction.Type: ApplicationFiled: March 6, 2018Publication date: October 11, 2018Inventors: Yasuo Kato, Kyohei Naito