Patents by Inventor Yutaka Ozawa
Yutaka Ozawa 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: 11947766Abstract: A touch panel device includes a first conductive film having first and second regions, at least a part of the first conductive film between the first and the second regions being removed, a second conductive film laminated on the first conductive film across a gap, first and second terminals that output signals, a first electrode electrically connected to the first terminal, a second electrode facing the first electrode across the first region, a first resistor provided on the first conductive film in the second region and having a pair of electrodes, the pair of electrodes facing each other across a first resistance region in the first conductive film, one of the electrodes being electrically connected to the second electrode, the other of the electrodes being electrically connected to the second terminal, and a first switch electrically connecting the first conductive film to the second conductive film, in the second region.Type: GrantFiled: September 17, 2021Date of Patent: April 2, 2024Assignee: FUJITSU COMPONENT LIMITEDInventors: Yuta Nakamura, Yutaka Ueno, Masaya Morohashi, Takuya Ozawa, Hideyuki Hagihara, Yuji Makiuchi
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Patent number: 11443721Abstract: A display device includes: sub-pixels each including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory blocks in the sub-pixels that belong to the corresponding row; a memory selection circuit configured to concurrently output memory selection signals to the memory selection line groups; a potential line; a conduction switch provided for at least one memory in the memory block on a one-to-one basis; and an operating-memory conduction circuit configured to output, to the conduction switch, an operation signal for determining whether to electrically couple or uncouple the potential line and the corresponding one memory. Each memory is capable of storing sub-pixel data therein when being coupled to the potential line. Each sub-pixel displays an image based on the sub-pixel data stored in one memory in the sub-pixel according to the memory selection line supplied with the memory selection signal.Type: GrantFiled: January 9, 2020Date of Patent: September 13, 2022Assignee: Japan Display Inc.Inventors: Masaya Tamaki, Yutaka Mitsuzawa, Takayuki Nakao, Yutaka Ozawa
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Patent number: 11158277Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.Type: GrantFiled: May 12, 2020Date of Patent: October 26, 2021Assignee: Japan Display Inc.Inventors: Yutaka Mitsuzawa, Takayuki Nakao, Masaya Tamaki, Yutaka Ozawa
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Patent number: 11143242Abstract: A journal bearing includes: a carrier ring; a plurality of bearing pads disposed on a radially inner side of a lower half region of the carrier ring, and configured to support a rotor shaft from below; and a guide metal disposed in an upper half region of the carrier ring, in center with respect to an axial direction of the rotor shaft, so as to cover an upper region of an outer peripheral surface of the rotor shaft.Type: GrantFiled: February 28, 2017Date of Patent: October 12, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Tanehiro Shinohara, Takaaki Kaikogi, Takashi Nakano, Yuichiro Waki, Yutaka Ozawa, Naoto Tochitani
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Patent number: 11035404Abstract: A bearing device includes a carrier ring, a first bearing portion disposed along an outer periphery of a rotor shaft on a radially inner side of the carrier ring; a second bearing portion disposed along the outer periphery and downstream of the first bearing portion, with respect to a rotational direction of the rotor shaft, on the radially inner side of the carrier ring; a pair of side plates disposed along the outer periphery of the rotor shaft, on both sides of the carrier ring with respect to an axial direction; a first oil guide portion disposed downstream of the first bearing portion and upstream of the second bearing portion, and configured to change a flow direction of oil after passing through a gap between an inner peripheral surface of the first bearing portion and an outer peripheral surface of the rotor shaft to guide the oil.Type: GrantFiled: August 10, 2016Date of Patent: June 15, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Takashi Nakano, Tanehiro Shinohara, Takaaki Kaikogi, Yuichiro Waki, Yutaka Ozawa
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Patent number: 10997933Abstract: A display device is provided and includes sub-pixels each including a sub-pixel electrode, and a first and second memory; a clock signal output circuit configured to, based on a reference clock signal, output a plurality of clock signals having different frequencies; a selection circuit configured to select one of the clock signals as a selected clock signal; a memory selection circuit configured to select all of the first memories included in all the sub-pixels or all of the second memories included in all the sub-pixels in synchronization with the selected clock signal; a common electrode facing all of the sub-pixel electrodes; and a common-electrode driving circuit configured to provide a common potential to the common electrode, wherein the common potential is inverted in synchronization with the reference clock signal, wherein the sub-pixel electrode is driven based on sub-pixel data stored in the selected one of the memories to display an image.Type: GrantFiled: January 16, 2020Date of Patent: May 4, 2021Assignee: Japan Display Inc.Inventors: Yutaka Mitsuzawa, Takayuki Nakao, Yutaka Ozawa, Masaya Tamaki
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Publication number: 20200408257Abstract: A bearing device includes a carrier ring, a first bearing portion disposed along an outer periphery of a rotor shaft on a radially inner side of the carrier ring; a second bearing portion disposed along the outer periphery and downstream of the first bearing portion, with respect to a rotational direction of the rotor shaft, on the radially inner side of the carrier ring; a pair of side plates disposed along the outer periphery of the rotor shaft, on both sides of the carrier ring with respect to an axial direction; a first oil guide portion disposed downstream of the first bearing portion and upstream of the second bearing portion, and configured to change a flow direction of oil after passing through a gap between an inner peripheral surface of the first bearing portion and an outer peripheral surface of the rotor shaft to guide the oil.Type: ApplicationFiled: August 10, 2016Publication date: December 31, 2020Applicant: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Takashi Nakano, Tanehiro Shinohara, Takaaki Kaikogi, Yuichiro Waki, Yutaka Ozawa
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Publication number: 20200273420Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.Type: ApplicationFiled: May 12, 2020Publication date: August 27, 2020Inventors: Yutaka Mitsuzawa, Takayuki Nakao, Masaya Tamaki, Yutaka Ozawa
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Patent number: 10738822Abstract: A journal bearing includes: a carrier ring; a plurality of bearing pads disposed on a radially inner side of a lower half region of the carrier ring; a pair of side plates disposed on both sides of the plurality of bearing pads with respect to an axial direction of the rotor shaft; and at least one oil-supply unit for supplying lubricant oil to the plurality of bearing pads. From among the at least one oil-supply unit, a first oil-supply unit disposed on a downstream side of a most downstream pad positioned most downstream of the plurality of bearing pads is configured to supply the lubricant oil toward a region below a corner portion of the most downstream pad, of a trailing edge surface of the most downstream pad, the corner portion being formed by an intersection between a pad surface of the most downstream pad and the trailing edge surface.Type: GrantFiled: February 28, 2017Date of Patent: August 11, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Tanehiro Shinohara, Takaaki Kaikogi, Takashi Nakano, Yuichiro Waki, Yutaka Ozawa, Naoto Tochitani
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Patent number: 10724573Abstract: A journal bearing includes: a carrier ring having a cylindrical shape; at least two bearing pads disposed on a radially inner side of the carrier ring and configured to support a rotor shaft; at least one oil-supply unit disposed on the radially inner side of the carrier ring, for supplying lubricant oil to a gap between the bearing pad and the rotor shaft; a pair of side plates disposed on both end portions of the carrier ring with respect to an axial direction, along an outer periphery of the rotor shaft; and at least one opening configured to bring a bearing interior space surrounded by the at least two bearing pads and the pair of side plates into communication with atmosphere, and discharge the lubricant oil to outside via the bearing interior space.Type: GrantFiled: August 10, 2016Date of Patent: July 28, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Takashi Nakano, Tanehiro Shinohara, Takaaki Kaikogi, Yuichiro Waki, Yutaka Ozawa
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Patent number: 10692455Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.Type: GrantFiled: April 10, 2018Date of Patent: June 23, 2020Assignee: Japan Display Inc.Inventors: Yutaka Mitsuzawa, Takayuki Nakao, Masaya Tamaki, Yutaka Ozawa
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Publication number: 20200152147Abstract: A display device is provided and includes sub-pixels each including a sub-pixel electrode, and a first and second memory; a clock signal output circuit configured to, based on a reference clock signal, output a plurality of clock signals having different frequencies; a selection circuit configured to select one of the clock signals as a selected clock signal; a memory selection circuit configured to select all of the first memories included in all the sub-pixels or all of the second memories included in all the sub-pixels in synchronization with the selected clock signal; a common electrode facing all of the sub-pixel electrodes; and a common-electrode driving circuit configured to provide a common potential to the common electrode, wherein the common potential is inverted in synchronization with the reference clock signal, wherein the sub-pixel electrode is driven based on sub-pixel data stored in the selected one of the memories to display an image.Type: ApplicationFiled: January 16, 2020Publication date: May 14, 2020Inventors: Yutaka MITSUZAWA, Takayuki NAKAO, Yutaka OZAWA, Masaya TAMAKI
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Publication number: 20200152159Abstract: A display device includes: sub-pixels each including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory blocks in the sub-pixels that belong to the corresponding row; a memory selection circuit configured to concurrently output memory selection signals to the memory selection line groups; a potential line; a conduction switch provided for at least one memory in the memory block on a one-to-one basis; and an operating-memory conduction circuit configured to output, to the conduction switch, an operation signal for determining whether to electrically couple or uncouple the potential line and the corresponding one memory. Each memory is capable of storing sub-pixel data therein when being coupled to the potential line. Each sub-pixel displays an image based on the sub-pixel data stored in one memory in the sub-pixel according to the memory selection line supplied with the memory selection signal.Type: ApplicationFiled: January 9, 2020Publication date: May 14, 2020Inventors: Masaya TAMAKI, Yutaka MITSUZAWA, Takayuki NAKAO, Yutaka OZAWA
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Patent number: 10621927Abstract: A display device includes: pixels arranged in a row direction and in a column direction in a display area, each pixel including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory block of each of the pixels belonging to a corresponding row; a memory selection circuit that simultaneously outputs a memory selection signal to the memory selection line groups; light sources; a light source selection circuit that selects which light source is to be used; and a light guide plate that guides the light emitted from selected light source to the display area. One of the memories is selected, and each pixel displays an image based on pixel data being stored in the selected memory. The light source selected by the light source selection circuit emits light over an entire period of time in which the one memory is selected.Type: GrantFiled: April 3, 2019Date of Patent: April 14, 2020Assignee: Japan Display Inc.Inventor: Yutaka Ozawa
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Patent number: 10565951Abstract: According to an aspect, a display device includes: a display area provided to a substrate; a shift register including a plurality of registers coupled in series; and a control circuit that supplies clock pulses to the registers, and that supplies a start pulse to a first register of the shift register to acquire an output from a last register of the shift register, wherein the display area is provided in an area surrounded by the shift register, the control circuit, and wiring that couples the shift register to the control circuit.Type: GrantFiled: May 23, 2016Date of Patent: February 18, 2020Assignee: Japan Display Inc.Inventors: Fumitaka Gotoh, Isao Edatsune, Yutaka Ozawa, Tsutomu Harada
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Patent number: 10559286Abstract: A display device includes: sub-pixels each including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory blocks in the sub-pixels that belong to the corresponding row; a memory selection circuit configured to concurrently output memory selection signals to the memory selection line groups; a potential line; a conduction switch provided for at least one memory in the memory block on a one-to-one basis; and an operating-memory conduction circuit configured to output, to the conduction switch, an operation signal for determining whether to electrically couple or uncouple the potential line and the corresponding one memory. Each memory is capable of storing sub-pixel data therein when being coupled to the potential line. Each sub-pixel displays an image based on the sub-pixel data stored in one memory in the sub-pixel according to the memory selection line supplied with the memory selection signal.Type: GrantFiled: August 8, 2018Date of Patent: February 11, 2020Assignee: Japan Display Inc.Inventors: Masaya Tamaki, Yutaka Mitsuzawa, Takayuki Nakao, Yutaka Ozawa
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Patent number: 10553167Abstract: A display device includes: a plurality of sub-pixels each including a memory block; a clock signal output circuit configured to output a plurality of clock signals having different frequencies; a selection circuit configured to select one of the clock signals as a selected clock signal; a plurality of memory selection line groups provided for respective rows; a memory selection circuit configured to output a memory selection signal concurrently to the memory selection line groups in synchronization with the selected clock signal, the memory selection signal being a signal for selecting one from a plurality of memories in each of the memory blocks; a common electrode to which a common potential common to the sub-pixels is supplied; and a common-electrode driving circuit configured to switch the common potential in synchronization with the reference clock signal and output the switched common potential.Type: GrantFiled: June 27, 2018Date of Patent: February 4, 2020Assignee: Japan Display Inc.Inventors: Yutaka Mitsuzawa, Takayuki Nakao, Yutaka Ozawa, Masaya Tamaki
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Patent number: 10514058Abstract: A bearing device includes: a carrier ring; a first bearing portion disposed along an outer periphery of a rotor shaft on a radially inner side of the carrier ring; a second bearing portion disposed along the outer periphery of the rotor shaft and downstream of the first bearing portion, with respect to a rotational direction of the rotor shaft, on the radially inner side of the carrier ring; and a pair of side plates disposed along the outer periphery of the rotor shaft, on both sides of the carrier ring with respect to an axial direction. In a carrier-ring side region of an inner peripheral surface of each of the side plates, a groove extending in a circumferential direction along a side surface of the first bearing portion is formed at least in a part of an extending range of the first bearing portion.Type: GrantFiled: August 10, 2016Date of Patent: December 24, 2019Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Takashi Nakano, Tanehiro Shinohara, Takaaki Kaikogi, Yuichiro Waki, Yutaka Ozawa
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Patent number: 10514062Abstract: A journal bearing includes: a carrier ring having an annular shape; a first bearing pad disposed on a radially inner side of a lower half region of the carrier ring and configured to support a rotor shaft from below; a first oil-supply unit disposed immediately before and upstream of the first bearing pad; a pair of side plates disposed on both end portions of the carrier ring with respect to an axial direction, along an outer periphery of the rotor shaft, Each of the side plates includes: a first region; and a second region which is positioned above the first region, and in which a gap between an inner peripheral surface of the side plate and an outer peripheral surface of the rotor shaft is narrower than that in the first region.Type: GrantFiled: August 10, 2016Date of Patent: December 24, 2019Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Takashi Nakano, Tanehiro Shinohara, Takaaki Kaikogi, Yuichiro Waki, Yutaka Ozawa
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Patent number: 10508565Abstract: A journal bearing includes: a carrier ring; a plurality of bearing pads disposed on a radially inner side of a lower half region of the carrier ring and configured to support a rotor shaft from below; a pair of side plates disposed on both sides of the plurality of bearing pads, with respect to an axial direction of the rotor shaft; and a dam disposed on a radially inner side of the carrier ring, in a downstream section of an upper half region of the carrier ring, and configured to suppress a downstream flow of carried-over oil. A gap is provided between inner peripheral surfaces of the respective side plates and an outer peripheral surface of the rotor shaft, for bringing into communication an outside and a bearing interior space surrounded by the pair of side plates.Type: GrantFiled: February 28, 2017Date of Patent: December 17, 2019Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Tanehiro Shinohara, Takaaki Kaikogi, Takashi Nakano, Yuichiro Waki, Yutaka Ozawa, Naoto Tochitani