Patents by Inventor Yuki Yamashita
Yuki Yamashita 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: 20140316290Abstract: A blood pressure meter includes an adjustment unit that adjusts a pressure in a cuff by controlling a piezoelectric pump that uses a piezoelectric vibrator to supply fluid to the cuff, a driving control unit that gradually changes a cuff pressure by performing driving control on the adjustment unit, a pressure detection unit that detects the cuff pressure, a blood pressure determination unit that determines a blood pressure value, a circumferential length detection unit that detects a circumferential length of the measurement area, a battery that supplies power to various units, and a decrease detection unit that detects a voltage decrease value for the battery during blood pressure measurement. Based on the circumferential length and the voltage decrease value detected in an initial inflation period when the blood pressure measurement is first started, a range of the voltage decrease value during blood pressure measurement carried out thereafter is estimated.Type: ApplicationFiled: October 10, 2012Publication date: October 23, 2014Inventors: Tatsuya Kobayashi, Yuki Yamashita, Yoshihiko Sano, Yukiya Sawanoi, Hironori Sato
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Publication number: 20140309541Abstract: A blood pressure measurement device determines an amplitude and a frequency of a voltage applied to a piezoelectric pump, carries out control so that a voltage at the determined amplitude and frequency is applied to the piezoelectric pump, and calculates a blood pressure value based on a detected cuff pressure during inflation when the cuff pressure is increased by the piezoelectric pump. A control frequency at which a pump efficiency of the piezoelectric pump is maximum in the case where the fluid is supplied to the cuff at a required flow rate during inflation using a predetermined voltage as the voltage is determined, and first control that applies a voltage at the amplitude of the predetermined voltage and at the determined control frequency is carried out. The amount of power consumed can be reduced when increasing the cuff pressure for blood pressure measurement using the piezoelectric pump.Type: ApplicationFiled: June 26, 2014Publication date: October 16, 2014Inventors: Yuki Yamashita, Tatsuya Kobayashi
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Patent number: 8854562Abstract: A liquid crystal panel (10) includes a plurality of pixels arranged in a matrix pattern having rows and columns. A plurality of Cs bus lines (43c) as storage capacitor lines are routed in the row direction of the liquid crystal panel (10). A plurality of branch lines (310) are routed in the column direction across a pixel region (10a). The branch lines (310) are connected to the Cs bus lines (43c) so that control signals are sent to storage capacitors from the branch lines (310) through the Cs bus lines (43c).Type: GrantFiled: May 10, 2010Date of Patent: October 7, 2014Assignee: Sharp Kabushiki KaishaInventors: Masae Kawabata, Fumikazu Shimoshikiryoh, Yuki Yamashita, Akihiro Shohraku
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Publication number: 20140276146Abstract: An electronic blood pressure meter includes a cuff that is to be worn on a measurement area, a piezoelectric pump that adjusts a pressure applied to the cuff, a drive circuit that drives the piezoelectric pump, and a controller that outputs, to the drive circuit, a pulse signal defining a driving timing of the piezoelectric pump. The drive circuit includes a switching circuit for switching a connection relationship between respective voltages applied to both ends of the piezoelectric pump in response to corresponding first and second driving signals, and a signal generation circuit that outputs the first and second driving signals based on the pulse signal outputted from the controller. The signal generation circuit has a signal conditioning circuit hat adjusts timings of the first and second driving signals so that the phases of the first and second driving signals do not overlap.Type: ApplicationFiled: October 5, 2012Publication date: September 18, 2014Inventors: Yuki Yamashita, Tatsuya Kobayashi
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Publication number: 20140257116Abstract: An electronic blood pressure meter includes a cuff, an inflation control unit that controls a pump for outputting a fluid into the cuff so that a pressure in the cuff is increased at an inflation speed target in accordance with a driving voltage, a pressure detection unit that detects a cuff pressure signal indicating a cuff pressure, a blood pressure calculation unit that calculates a blood pressure value based on a pulse wave superimposed on the detected cuff pressure signal, and a target changing unit that varies the inflation speed target during an inflation process in which the cuff pressure begins to increase at an initial inflation speed target and continues to increase. The target changing unit varies the inflation speed target so that the driving voltage measured during the inflation process stays within a voltage range corresponding to a range in which the pump is capable of output.Type: ApplicationFiled: October 10, 2012Publication date: September 11, 2014Applicant: OMRON HEALTHCARE CO., LTD.Inventors: Tatsuya Kobayashi, Yuki Yamashita, Hiroyuki Kinoshita, Hironori Sato, Kenji Fujii, Yukiya Sawanoi
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Patent number: 8792116Abstract: A printing controller having a printer driver configured to display a GUI using language-dependent files containing the display character strings of corresponding languages is disclosed. The printing controller includes a compressed language-dependent file into which the language-dependent files are compressed, a language selection part configured to cause one of the languages which one is used by the printer driver to be selected, and an expansion part configured to expand one of the language-dependent files related to the selected one of the languages from the compressed language-dependent file. The printer driver displays the GUI using the one of the language-dependent files expanded by the expansion part.Type: GrantFiled: March 1, 2007Date of Patent: July 29, 2014Assignee: Ricoh Company, Ltd.Inventors: Takayuki Shimatani, Yuki Yamashita
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Publication number: 20140176891Abstract: The present invention provides a liquid crystal display panel which facilitates laser repair for repairing defects even if an electrode facing a pixel electrode with an insulating film therebetween is a transparent electrode. The liquid crystal display panel of the present invention includes a first substrate having an insulating substrate, a thin film transistor, a scan signal line, a first light-shielding electrode, a first insulating film, a second light-shielding electrode, a second insulating film, a transparent electrode, a third insulating film, and a pixel electrode; a second substrate having an insulating substrate; and a liquid crystal layer sandwiched between the first substrate and the second substrate. The second light-shielding electrode is located between the thin film transistor and the pixel electrode and connected to the pixel electrode through a connecting portion formed through the second insulating film and the third insulating film.Type: ApplicationFiled: August 3, 2012Publication date: June 26, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Yuhko Hisada, Katsushige Asada, Tetsuya Fujikawa, Akihiro Shohraku, Yuki Yamashita
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Patent number: 8749727Abstract: The present invention provides a liquid crystal display device which hardly causes image sticking in a panel in which Cgd gradation is performed, even when the pixel capacitances of the picture elements are different from one another.Type: GrantFiled: November 5, 2010Date of Patent: June 10, 2014Assignee: Sharp Kabushiki KaishaInventors: Ikumi Itsumi, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka
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Publication number: 20140142240Abstract: Provided are a polymer having low cytotoxicity and capable of imparting surface hydrophilicity and biocompatibility to medical device surfaces by simple processing, a method for producing the polymer, and a surface treatment agent for medical devices. The polymer of the present invention has a particular ratio of structural units represented by the formulae (1a) and (1b), and a particular weight average molecular weight, and is useful as a surface treatment agent for various medical devices.Type: ApplicationFiled: June 12, 2012Publication date: May 22, 2014Applicant: NOF CORPORATIONInventors: Norio Iwakiri, Yosuke Matsuoka, Nobuyuki Yoshioka, Yuki Yamashita, Nobuyuki Sakamoto
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Publication number: 20140142808Abstract: There are provided a power supply unit control device for an internal combustion engine driven vehicle provided with a lamp driving switch for turning lamp-driving current supplied to a vehicle headlamp from a battery charged by the output of an AC generator driven by an internal combustion engine and with a conducting control unit for controlling the lamp driving switch.Type: ApplicationFiled: June 29, 2012Publication date: May 22, 2014Applicants: KOKUSAN DENKI CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Tsuyoshi Hirade, Yuki Yamashita, Megumu Iwakiri, Kenji Kimura
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Patent number: 8586150Abstract: The present invention provides a method for producing a perovskite-structure oxide, with which a highly crystalline oxide layer is formed on a base layer that is metal or the like. The method comprises the steps of: forming, on a base layer, a buffer layer having thermal conductivity lower than thermal conductivity of the base layer; forming a precursor layer of an ABO3-type perovskite-structure oxide comprising Ba at A sites thereof and Ti at B sites thereof on the buffer layer; decomposing the precursor layer, thereby forming an oxide layer comprising Ba and Ti; and annealing the oxide layer by irradiating laser light thereon.Type: GrantFiled: March 24, 2009Date of Patent: November 19, 2013Assignees: National Institute of Advanced Industrial Science and Technology, TDK CorporationInventors: Tetsuo Tsuchiya, Yuki Yamashita, Masato Susukida
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Patent number: 8587739Abstract: A storage capacitor bus line (CsL) connected to a CS trunk line (bb) of at least one of CS trunk line groups (BB1 and BB2), which CS trunk line (bb) is other than a CS trunk line (bb) being closest to an active area (AA), has a meandering part (41) in its feed part (F) that extends from the active area (AA) to a connection point where the storage capacitor bus line (CsL) is connected to the CS trunk line (bb). The meandering part (41) is a part drawn out and deviated from a line on which the storage capacitor bus line (CsL) extends, and the meandering part (41) has a line length which is larger as a distance (d) from the active area AA to the connection point is smaller.Type: GrantFiled: April 16, 2009Date of Patent: November 19, 2013Assignee: Sharp Kabushiki KaishaInventors: Yuki Yamashita, Masae Kawabata, Akihiro Shoraku, Fumikazu Shimoshikiryoh
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Patent number: 8493304Abstract: A liquid crystal display device includes a liquid crystal panel in which a plurality of pixels (A) are arranged. A storage capacitor (Cs) is provided in each pixel (A) of liquid crystal panel. The storage capacitor (Cs) is connected to a Cs bus line. The liquid crystal display device includes a plurality of Cs bus lines. The Cs bus line is connected to a stem line. The stem line transfers a driving signal to the storage capacitor (Cs) via the Cs bus line. The liquid crystal display device includes a bridge line, separate from the stem line, for connecting a plurality of Cs bus lines.Type: GrantFiled: August 27, 2009Date of Patent: July 23, 2013Assignee: Sharp Kabushiki KaishaInventors: Yuki Yamashita, Akihiro Shoraku, Fumikazu Shimoshikiryoh, Masae Kitayama
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Publication number: 20130002992Abstract: A liquid crystal display device (100) according to the present invention includes a color display pixel D including pixels PA through PD arrayed in a matrix. The pixels PA through PD respectively include sub pixels SA1 through SD1 and sub pixels SA2 through SD2. At least at an intermediate gray scale level, the luminance of the sub pixels SA2 through SD2 is higher than the luminance of the sub pixels SA1 through SD1. The plurality of sub pixels S included in the pixels PA through PD are arrayed in a matrix. The sub pixel SA2 is adjacent to the sub pixel SB2 in the row direction, is adjacent to the sub pixel SC2 in the column direction, and is adjacent to the sub pixel SD2 in an oblique direction.Type: ApplicationFiled: January 27, 2011Publication date: January 3, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Publication number: 20120326954Abstract: The present invention is to provide a liquid crystal display device which hardly causes image sticking even when there is a difference in the pixel areas. The liquid crystal display device of the present invention includes a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, and is configured such that a pixel is formed by picture elements of a plurality of colors.Type: ApplicationFiled: October 26, 2010Publication date: December 27, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Ikumi Itsumi, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Publication number: 20120320297Abstract: The present invention provides a liquid crystal display device which hardly causes image sticking in a panel in which Cgd gradation is performed, even when the pixel capacitances of the picture elements are different from one another.Type: ApplicationFiled: November 5, 2010Publication date: December 20, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Ikumi Itsumi, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka
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Publication number: 20120320026Abstract: A color display pixel PCD in a liquid crystal display device (100) includes first through fourth pixels P1 through P4 arrayed in two rows by two columns, and first and second signal lines (13a, 13b) which are located in correspondence with each column of pixels and are supplied with signal voltages of polarities opposite to each other from a signal line driving circuit (30) in each vertical scanning period. A TFT (14) of one of the first and third pixel P1 and P3 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b). A TFT (14) of one of the second and fourth pixel P2 and P4 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b).Type: ApplicationFiled: January 27, 2011Publication date: December 20, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Masae Kitayama, Mitsuaki Hirata, Fumikazu Shimoshikiryoh, Kenichi Hyodo, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka
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Publication number: 20120306732Abstract: A liquid crystal display device (100) according to the present invention has a plurality of pixels that are arranged in columns and rows to form a matrix pattern and one color display pixel (P) is comprised of four or any other larger even number of pixels. The liquid crystal display device (100) of the present invention includes a plurality of source bus lines (13) which run in a column direction. The even number of pixels that form one color display pixel (P) include larger pixels with a relatively large area and smaller pixels with a relatively small area. Each set of pixels to be supplied with a signal voltage from an associated one of the plurality of source bus lines (13) has substantially the same total area as any other set of pixels. According to the present invention, in a liquid crystal display device in which a plurality of pixels that forms one color display pixel includes the larger and smaller pixels, generation of display unevenness that runs in the column direction can be minimized.Type: ApplicationFiled: January 24, 2011Publication date: December 6, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Toshinori Sugihara, Toshihide Tsubata, Yuki Yamashita, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Kenichi Hyohdoh, Ikumi Itsumi, Akane Sugisaka, Masae Kitayama
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Publication number: 20120299898Abstract: The liquid crystal display device (100) of this invention has pixels that are arranged in columns and rows to form a matrix pattern. The device includes: an active-matrix substrate (10) that includes pixel electrodes (11) provided for those pixels, scan lines (12) running in a row direction, and signal lines (13) running in a column direction; a counter substrate (20) facing the active-matrix substrate (10); and a liquid crystal layer (30) interposed between the active-matrix substrate (10) and the counter substrate (20). Each of the signal lines (13) includes, in an area given to each of pixel rows defined by those pixels, a first straight portion (13a) that overlaps with only one of two pixel electrodes (11) that are adjacent to the signal line (13), a second straight portion (13b) that overlaps with only the other pixel electrode (11), and a bent portion (13c) that connects the first and second straight portions (13a, 13b) together.Type: ApplicationFiled: December 10, 2010Publication date: November 29, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Yuki Yamashita, Akihiro Shohraku, Masanori Takeuchi
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Publication number: 20120280896Abstract: In a liquid crystal display device according to the present invention, a plurality of subpixels are arranged in one column and n rows (where n is an even number that is equal to or greater than four) within each pixel (P). In two arbitrary ones of the pixels (P), which are adjacent to each other in the row direction, subpixels that represent the same color belong to the same row. If two arbitrary ones of the pixels (P), which are adjacent to each other in the column direction, are called first and second pixels (P1, P2), respectively, a half of the subpixels are located in odd-numbered rows in the first pixel (P1) and in even-numbered rows in the second pixel (P2), while the other half of the subpixels are located in even-numbered rows in the first pixel (P1) and in odd-numbered rows in the second pixel (P2).Type: ApplicationFiled: January 4, 2011Publication date: November 8, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Yuki Yamashita, Akihiro Shohraku