Patents by Inventor Hisashi Yamaguchi
Hisashi Yamaguchi 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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Publication number: 20240146245Abstract: A circuit device includes an oscillation circuit, a control circuit, a first power supply line, a second power supply line, a nonvolatile memory, a volatile memory, and a power supply switch circuit. The oscillation circuit generates a clock signal by oscillating a resonator. The control circuit performs a real-time clock process based on the clock signal. The nonvolatile memory operates at a first power supply voltage from the first power supply line. The volatile memory operates at a second power supply voltage from the second power supply line. The power supply switch circuit performs control of switching between supply and non-supply of the first power supply voltage to the first power supply line and control of switching between supply and non-supply of the second power supply voltage to the second power supply line.Type: ApplicationFiled: October 30, 2023Publication date: May 2, 2024Inventor: Hisashi YAMAGUCHI
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Patent number: 11955149Abstract: In general, according to one embodiment, a disk device includes a magnetic disk, a magnetic head, a suspension, a ramp, a housing, and a screw. The suspension holds the magnetic head and moves to an unload position. The ramp includes an attachment tab with a through hole. The ramp holds the suspension at the unload position. The housing has a support surface with a screw hole to support the attachment tab. The screw includes a screw head, a screw shaft, and a first contact surface. The screw shaft extends from the screw head in a first direction and is fitted into the screw hole through the through hole. The first contact surface is located on the screw head, tapers in the first direction, and contacts the attachment tab. The screw holds the attachment tab in-between the support surface and the first contact surface.Type: GrantFiled: March 7, 2023Date of Patent: April 9, 2024Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventors: Hisashi Hasegawa, Hideki Yamaguchi, Sinji Tukada
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Publication number: 20240096353Abstract: In general, according to one embodiment, a disk device includes a magnetic disk, a magnetic head, a suspension, a ramp, a housing, and a screw. The suspension holds the magnetic head and moves to an unload position. The ramp includes an attachment tab with a through hole. The ramp holds the suspension at the unload position. The housing has a support surface with a screw hole to support the attachment tab. The screw includes a screw head, a screw shaft, and a first contact surface. The screw shaft extends from the screw head in a first direction and is fitted into the screw hole through the through hole. The first contact surface is located on the screw head, tapers in the first direction, and contacts the attachment tab. The screw holds the attachment tab in-between the support surface and the first contact surface.Type: ApplicationFiled: March 7, 2023Publication date: March 21, 2024Inventors: Hisashi HASEGAWA, Hideki YAMAGUCHI, Sinji TUKADA
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Patent number: 10974658Abstract: An image display control device displays, on a monitor, images of the periphery of a vehicle that are captured by a left camera and a right camera installed in the vehicle. The device includes: a vehicle detection unit which detects another vehicle from the images captured by the left camera and the right camera; an enlargement unit which, when the other vehicle is detected by the vehicle detection unit, subjects the images captured by the left camera and the right camera to enlargement processing on the basis of a delay time the images take to be displayed on the monitor; and an output unit which outputs the images subjected to the enlargement processing by the enlargement unit to the monitor.Type: GrantFiled: October 12, 2017Date of Patent: April 13, 2021Assignee: Calsonic Kansei CorporationInventors: Daisuke Kondou, Hisashi Yamaguchi
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Publication number: 20190322222Abstract: An image display control device displays, on a monitor, images of the periphery of a vehicle that are captured by a left camera and a right camera installed in the vehicle. The device includes: a vehicle detection unit which detects another vehicle from the images captured by the left camera and the right camera; an enlargement unit which, when the other vehicle is detected by the vehicle detection unit, subjects the images captured by the left camera and the right camera to enlargement processing on the basis of a delay time the images take to be displayed on the monitor; and an output unit which outputs the images subjected to the enlargement processing by the enlargement unit to the monitor.Type: ApplicationFiled: October 12, 2017Publication date: October 24, 2019Inventors: Daisuke Kondou, Hisashi Yamaguchi
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Patent number: 10135391Abstract: An oscillation circuit includes an oscillating circuit adapted to oscillate a resonator element, a capacitance circuit connected to the oscillating circuit, and capable of correcting an oscillation frequency of the oscillating circuit, a logic circuit to which a signal output from the oscillating circuit is input, and which is capable of correcting a frequency of the signal, and a control circuit adapted to control an operation of the capacitance circuit and an operation of the logic circuit.Type: GrantFiled: August 24, 2016Date of Patent: November 20, 2018Assignee: Seiko Epson CorporationInventors: Toru Shirotori, Hisashi Yamaguchi, Masaki Wakamori, Toshiya Usuda, Masayuki Kamiyama, Sho Matsuzaki, Hiroshi Kiya, Tsuyoshi Yoneyama
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Patent number: 10128854Abstract: An oscillation circuit includes an oscillating circuit adapted to oscillate a resonator element having a frequency-temperature characteristic, and a frequency adjustment circuit having a capacitance circuit connected to the oscillating circuit and adapted to adjust an oscillation frequency of the oscillating circuit, and a logic circuit, to which a signal having been output from the oscillating circuit is input, and which adjusts a frequency of the signal, and the frequency adjustment circuit compensates the frequency-temperature characteristic using at least the capacitance circuit in a predetermined temperature range, and compensates the frequency-temperature characteristic using the logic circuit alone outside the predetermined temperature range.Type: GrantFiled: August 24, 2016Date of Patent: November 13, 2018Assignee: Seiko Epson CorporationInventors: Toru Shirotori, Hisashi Yamaguchi, Masaki Wakamori, Toshiya Usuda, Sho Matsuzaki, Tsuyoshi Yoneyama, Masayuki Kamiyama, Hiroshi Kiya
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Publication number: 20170063305Abstract: An oscillation circuit includes an oscillating circuit adapted to oscillate a resonator element, a capacitance circuit connected to the oscillating circuit, and capable of correcting an oscillation frequency of the oscillating circuit, a logic circuit to which a signal output from the oscillating circuit is input, and which is capable of correcting a frequency of the signal, and a control circuit adapted to control an operation of the capacitance circuit and an operation of the logic circuit.Type: ApplicationFiled: August 24, 2016Publication date: March 2, 2017Inventors: Toru SHIROTORI, Hisashi YAMAGUCHI, Masaki WAKAMORI, Toshiya USUDA, Masayuki KAMIYAMA, Sho MATSUZAKI, Hiroshi KIYA, Tsuyoshi YONEYAMA
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Publication number: 20170063380Abstract: An oscillation circuit includes an oscillating circuit adapted to oscillate a resonator element having a frequency-temperature characteristic, and a frequency adjustment circuit having a capacitance circuit connected to the oscillating circuit and adapted to adjust an oscillation frequency of the oscillating circuit, and a logic circuit, to which a signal having been output from the oscillating circuit is input, and which adjusts a frequency of the signal, and the frequency adjustment circuit compensates the frequency-temperature characteristic using at least the capacitance circuit in a predetermined temperature range, and compensates the frequency-temperature characteristic using the logic circuit alone outside the predetermined temperature range.Type: ApplicationFiled: August 24, 2016Publication date: March 2, 2017Inventors: Toru SHIROTORI, Hisashi YAMAGUCHI, Masaki WAKAMORI, Toshiya USUDA, Sho MATSUZAKI, Tsuyoshi YONEYAMA, Masayuki KAMIYAMA, Hiroshi KIYA
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Patent number: 8743041Abstract: In order to carry out a display reset operation, a segment driver and a common driver are driven to operate as below during a display data reading period in which voltages to be applied to a liquid crystal display panel are nonuniform between lines. First, a shift register and a level shifter which are provided in the segment driver and a shift register and a level shifter which are provided in the common driver are driven to operate as usual, whereas a display control signal supplied from a controller causes output circuits to stop carrying out their respective output operations. In at least one embodiment, during a period in which a writing operation is carried out with respect to the liquid crystal display panel so as to carry out the display reset operation, the display control signal supplied from the controller allows the output circuits to carry out the respective output operations. This allows a memory (e.g.Type: GrantFiled: October 28, 2009Date of Patent: June 3, 2014Assignee: Sharp Kabushiki KaishaInventors: Toru Kuriyama, Hisashi Yamaguchi, Hiromasa Asada
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Patent number: 8553188Abstract: A liquid crystal display device comprising a liquid crystal layer including liquid crystal molecules provided between a first substrate and a second substrate; pixels forming a display area; electrodes for applying a voltage across the liquid crystal layer within each of the pixels; a plurality of domain regulating structures for dividing orientations of the liquid crystal molecules and forming multiple domains within each of the pixels, when a predetermined voltage is applied across the liquid crystal layer within each of the pixels. The device also includes a structure which is formed in an outer area located next to the display area, but that does not overlap the display area, and is substantially the same as at least one of the plurality of domain regulating structures.Type: GrantFiled: January 25, 2012Date of Patent: October 8, 2013Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
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Patent number: 8421742Abstract: A liquid crystal display device includes a panel having pixel electrodes arranged at intersections of a plurality of signal lines via switching elements for transmitting display data and a plurality of scanning lines for transmitting control signals, and a control circuit for controlling the panel. The liquid crystal panel is divided into first pixel regions and second pixel regions adjacent to the first pixel regions. The control circuit carries out impulse driving in which the control signals transmitted to each of the scanning lines are activated two times in one frame period for displaying an image. The control circuit writes the display data in either one of the pixel regions and writes reset data in the other pixel regions when the control signals are activated once of the two times. By writing the reset data in the pixel regions, the display data written in an immediately preceding frame are reset.Type: GrantFiled: May 18, 2010Date of Patent: April 16, 2013Assignee: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Seiji Tanuma, Takatoshi Mayama, Yuichi Inoue, Toshiaki Suzuki, Kazutaka Hanaoka, Takeshi Gotoh, Tetsuya Kobayashi, Makoto Ohashi, Hisashi Yamaguchi, Katsunori Tanaka, Koichi Katagawa
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Patent number: 8363203Abstract: A liquid crystal display includes a display section performing display using a liquid crystal, a substrate disposed to face a bottom surface of the display section and having a circuit for driving the liquid crystal mounted thereon, and a heat diffusing section disposed in contact with the bottom surface of the display section and a top surface of the substrate and having thermal conductivity higher than the thermal conductivity of air.Type: GrantFiled: September 1, 2009Date of Patent: January 29, 2013Assignee: Fujitsu LimitedInventors: Masaki Nose, Hisashi Yamaguchi
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Patent number: 8279165Abstract: A liquid crystal display device includes a panel having pixel electrodes arranged at intersections of a plurality of signal lines via switching elements for transmitting display data and a plurality of scanning lines for transmitting control signals, and a control circuit for controlling the panel. The liquid crystal panel is divided into first pixel regions and second pixel regions adjacent to the first pixel regions. The control circuit carries out impulse driving in which the control signals transmitted to each of the scanning lines are activated two times in one frame period for displaying an image. The control circuit writes the display data in either one of the pixel regions and writes reset data in the other pixel regions when the control signals are activated once of the two times. By writing the reset data in the pixel regions, the display data written in an immediately preceding frame are reset.Type: GrantFiled: May 18, 2010Date of Patent: October 2, 2012Assignee: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Seiji Tanuma, Takatoshi Mayama, Yuichi Inoue, Toshiaki Suzuki, Kazutaka Hanaoka, Takeshi Gotoh, Tetsuya Kobayashi, Makoto Ohashi, Hisashi Yamaguchi, Katsunori Tanaka, Koichi Katagawa
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Patent number: 8269923Abstract: A multilayer liquid crystal display element has a plurality of data electrode layer-to-layer interconnects formed in a non-display area of a liquid crystal display panel for connecting data electrodes of liquid crystal display panels for R, G, and B to a plurality of data signal input terminals from layer to layer, and a plurality of scanning electrode layer-to-layer interconnects formed in the non-display area for connecting scanning electrodes of the liquid crystal display panels for R, G, and B to a plurality of scan signal input terminals from layer to layer.Type: GrantFiled: September 17, 2009Date of Patent: September 18, 2012Assignee: Fujitsu LimitedInventors: Fumio Yamagishi, Junji Tomita, Hisashi Yamaguchi
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Patent number: 8199094Abstract: A display device includes a liquid crystal display panel having a first and second substrates with scanning electrodes and data electrodes and a liquid crystal layer; a scanning electrode driving circuit applying to the scanning electrodes scan pulse; a data electrode driving circuit applying to the data electrodes data pulses having combinations of different voltage levels according to write data; and a driving control circuit supplying to the scanning and data electrode driving circuits a pulse control signal controlling the phase of the scan pulses and data pulses. The scanning and data electrode driving circuits control the scan pulses and data pulses at voltage levels according to the pulse control signal, and the driving control circuit inverts or does not invert the phase of the pulse control signal, at each application interval of the scan pulses, according to the number of changed values and unchanged values of the write data.Type: GrantFiled: October 2, 2009Date of Patent: June 12, 2012Assignee: Fujitsu LimitedInventors: Masaki Nose, Hisashi Yamaguchi
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Publication number: 20120120338Abstract: A liquid crystal display device comprising a liquid crystal layer including liquid crystal molecules provided between a first substrate and a second substrate; pixels forming a display area; electrodes for applying a voltage across the liquid crystal layer within each of the pixels; a plurality of domain regulating structures for dividing orientations of the liquid crystal molecules and forming multiple domains within each of the pixels, when a predetermined voltage is applied across the liquid crystal layer within each of the pixels; and a structure which is formed in an outer area located next to the display area and is substantially the same as at least one of the plurality of domain regulating structures.Type: ApplicationFiled: January 25, 2012Publication date: May 17, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
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Patent number: 8144074Abstract: A liquid crystal display element includes a G display unit, serving as a first display unit, R and B display units and, serving as second and third display units, that are laminated on the G display unit and have display regions arranged so as to correspond to a display region of the G display unit, and a display control unit that performs a reset process of changing the display region to the same display state on the G display unit and then starts the reset process of the R and B display units.Type: GrantFiled: March 26, 2009Date of Patent: March 27, 2012Assignee: Fujitsu LimitedInventors: Masayuki Nose, Hisashi Yamaguchi, Tsuneo Watanuki, Makoto Fukuda, Toshiaki Yoshihara
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Patent number: 8134671Abstract: A liquid crystal display device including a pair of substrates sandwiching liquid crystal molecules, a plurality of gate bus lines, and a plurality of data bus lines, with each of the data bus lines extending to intersect the gate bus lines and bending in a zigzag manner. A plurality of pixels are formed in areas enclosed by the data and gate bus lines, with a plurality of pixel electrodes, each covering a substantial area of one of the pixels. A plurality of domain regulating structures for regulating orientation directions of the liquid crystal molecules and for forming multiple domains are formed in each of the pixels. At least one of the domain regulating structures bends along a first side edge of the pixel electrode and domains are divided in accordance with the bending of the domain regulating structure.Type: GrantFiled: March 29, 2011Date of Patent: March 13, 2012Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
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Publication number: 20110205203Abstract: In order to carry out a display reset operation, a segment driver and a common driver are driven to operate as below during a display data reading period in which voltages to be applied to a liquid crystal display panel are nonuniform between lines. First, a shift register and a level shifter which are provided in the segment driver and a shift register and a level shifter which are provided in the common driver are driven to operate as usual, whereas a display control signal supplied from a controller causes output circuits to stop carrying out their respective output operations. In at least one embodiment, during a period in which a writing operation is carried out with respect to the liquid crystal display panel so as to carry out the display reset operation, the display control signal supplied from the controller allows the output circuits to carry out the respective output operations. This allows a memory (e.g.Type: ApplicationFiled: October 28, 2009Publication date: August 25, 2011Applicant: Sharp Kabushiki KaishaInventors: Toru Kuriyama, Hisashi Yamaguchi, Hiromasa Asada