Patents by Inventor Mitsuhiro Murata
Mitsuhiro Murata 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: 8947624Abstract: A vertical alignment liquid crystal panel based on a transverse electric field drive system is provided which shows few changes in color when looked squarely at. A liquid crystal panel (2) is a vertical alignment liquid crystal panel based on a transverse electric field drive system, which carries out a display by driving, with a transverse electric field, a liquid crystal layer (50) sandwiched between substrates (10, 20), and the substrate (10) is provided with an insulating layer (25) having at least two regions that are different in relative permittivity from each other in a pixel (6) composed of a red subpixel (6R), a green subpixel (6G), and a blue subpixel (6B). Those regions of the insulating layer (25) which correspond to the blue, green, and red subpixel (6B, 6G, 6R) in the liquid crystal panel (2) have relative permittivities of 3, 3 to 7, and 4 to 7, respectively.Type: GrantFiled: June 8, 2010Date of Patent: February 3, 2015Assignee: Sharp Kabushiki KaishaInventors: Mitsuhiro Murata, Shuichi Kozaki, Shoichi Ishihara, Takehisa Sakurai, Tadashi Ohtake
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Publication number: 20150028599Abstract: An electromagnetic relay for starting a motor of a starter includes a resistor to reduce an activation current that flows through the motor from a battery for activation of the motor, a relay contact that causes the starting current to flow while bypassing the resistor, a relay coil that forms an electromagnet when excited by energization, and a control circuit that controls an excited state of the relay coil for activation of the motor to open or close the relay contact, thus controlling energization of the motor from the battery via the resistor. The electromagnetic relay incorporates therein the control circuit.Type: ApplicationFiled: October 14, 2014Publication date: January 29, 2015Inventors: Yoshiaki SUZUKI, Mitsuhiro MURATA
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Patent number: 8934075Abstract: The present invention provides a liquid crystal display device that can suppress a display defect due to collapse of liquid crystal alignment. The present invention provides a liquid crystal display device comprising a liquid crystal display element including a pair of substrates and a liquid crystal layer hermetically interposed between the pair of substrates, wherein the liquid crystal layer includes a p-type liquid crystal material that is homeotropically aligned with respect to surfaces of the pair of substrates when no voltage is applied; one of the pair of substrates comprises a comb-shaped electrode and a first alignment layer configured to control alignment of the p-type liquid crystal material; the other of the pair of substrates comprises a second alignment layer configured to control alignment of the p-type liquid crystal material; and the first alignment layer has an anchoring energy of not greater than 1.5×10?4 J/m2.Type: GrantFiled: March 17, 2010Date of Patent: January 13, 2015Assignee: Sharp Kabushiki KaishaInventors: Shoichi Ishihara, Takehisa Sakurai, Mitsuhiro Murata, Shuichi Kozaki, Tadashi Ohtake
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Publication number: 20150009459Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device which have improved viewing angle characteristics due to having a multi-domain structure and the like and can sufficiently improve transmittance. The present invention relates to a liquid crystal display panel, including a first substrate and a second substrate facing each other; and a liquid crystal layer interposed between the substrates, the first substrate and/or the second substrate including a vertical alignment film on the liquid crystal layer side to align liquid crystal molecules, at a voltage lower than a threshold voltage, in the vertical direction to main surfaces of the substrates, the first substrate and/or the second substrate including a common electrode, the common electrode including a grid-shaped first common electrode, the first substrate including a pixel electrode, and the pixel electrode being branched.Type: ApplicationFiled: December 19, 2012Publication date: January 8, 2015Inventors: Yosuke Iwata, Hidefumi Yoshida, Mitsuhiro Murata
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Patent number: 8860916Abstract: The present invention provides a liquid crystal display device capable of preventing occurrence of flickers.Type: GrantFiled: October 28, 2010Date of Patent: October 14, 2014Assignee: Sharp Kabushiki KaishaInventors: Mitsuhiro Murata, Shoichi Ishihara, Takehisa Sakurai, Shuichi Kozaki, Toshihiro Matsumoto, Yosuke Iwata
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Patent number: 8847713Abstract: The starter-use electromagnetic switch has an electrical contact interposed in a power supply line for supplying power from a battery to a starter motor, the main contact being turned on and off in interlock with energization of an electromagnet implemented by an excitation coil. The electromagnetic switch includes a connection fitting connected to the excitation coil at one end thereof and drawn outside through a resin cover of the electromagnetic switch at the other end thereof, and a terminal fitting electrically and mechanically connected to the other end of the connection fitting at one end thereof, the other end of the terminal fitting being branched into first and second terminal pieces. The first terminal piece serves as an excitation terminal supplied with power from the battery. The second terminal piece serves as a connection terminal connected to an excitation terminal of an external electromagnetic switch through a cable.Type: GrantFiled: May 31, 2012Date of Patent: September 30, 2014Assignee: Denso CorporationInventors: Masami Niimi, Takahisa Inagaki, Mitsuhiro Murata
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Publication number: 20140285040Abstract: An electromagnetic switch is provided which includes: a coil generating magnetomotive force; a frame accommodating the coil and generating a flux path; a resin cover covering an opening of the frame; and a current-supply terminal member energizing the coil. The current-supply terminal member includes: a blade-shaped terminal whose end is connected to the coil and whose another end is drawn out of the resin cover in the axial direction of the electromagnetic switch; and a plate-shaped external connection terminal whose end is joined to an end of the blade-shaped terminal and whose another end is drawn out in the direction intersecting the axial direction. A portion between the ends of the external connection terminal is insert-molded in a terminal anchor block provided with the resin cover. A female terminal of a power supply connector provided at an electric supply line is fitted and electrically connected to the external connection terminal.Type: ApplicationFiled: June 6, 2014Publication date: September 25, 2014Applicant: DENSO CORPORATIONInventors: Masami NIIMI, Mitsuhiro MURATA, Kiyokazu HARUNO
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Patent number: 8835863Abstract: The radiation detector includes: a housing defining an enclosed space filled with a radiation detection gas; first and second electrodes opposing each other across the enclosed space; insulating materials covering surfaces of the first and second electrodes facing the enclosed space; and a voltage source for applying a voltage to the first and second electrodes, whereby a radiation sensor is formed. The radiation sensor is configured so that: in a radiation detection period, a predetermined voltage is applied between the first and second electrodes, and an electric charge is accumulated on the insulating materials by ions and/or electrons generated by ionization of the gas by incident radiation; and in a radiation measurement time, an electric discharge is caused by applying a reverse bias voltage from that applied to the first and second electrodes in the radiation detection period, and a firing voltage is measured.Type: GrantFiled: September 11, 2013Date of Patent: September 16, 2014Assignee: Panasonic CorporationInventors: Yoichi Shintani, Ryuichi Murai, Mitsuhiro Murata, Tomoyuki Maeda
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Publication number: 20140253853Abstract: This liquid crystal display device (100) includes: a vertical alignment liquid crystal layer (30); first and second substrates (10, 20); first and second electrodes (11, 21) arranged on the first and second substrates to face the liquid crystal layer; and two photo-alignment films (12, 22). Each pixel region includes first and second liquid crystal domains, of which the reference alignment directions defined by the two photo-alignment films are a first direction and a second direction different from the first direction, respectively. The first electrode has a slit cut region (11R1), through which a slit (11s) has been cut to run substantially parallel to the reference alignment direction, in a part of a region allocated to each of the first and second liquid crystal domains. The width (W) of the slit is set so that when the highest grayscale voltage is applied to the first electrode, an effective applied voltage decreases by at least 0.Type: ApplicationFiled: October 11, 2012Publication date: September 11, 2014Applicant: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Tsuyoshi Kamada, Tsuyoshi Maeda, Mitsuhiro Murata, Yoji Yoshimura, Yuichiro Yamada, Kenji Okamoto, Yosuke Iwata, Yasuhiro Nasu, Akira Sakai, Masahiro Hasegawa
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Publication number: 20140239641Abstract: In a starter for starting an on-vehicle engine, a solenoid is provided to push a pinion gear. The solenoid has an electromagnetic coil composed of a single coil and electrically separated from a motor circuit, a fixed core, and a plunger. Supply of excitation current to the electromagnetic coil allows the fixed core to be magnetized to attract the plunger. Hence, a movement of the plunger results in a push of the movable member toward the ring gear. A switch is provided in the circuit and has a contact, a movable core, and a switch coil functioning as an electromagnet attracting the movable core in response to supply of current to the switch coil. A movement of the movable core results in on/off switching operations of the switch. The switch is allowed to operate independently of the solenoid when both the switch and solenoid are controlled.Type: ApplicationFiled: May 2, 2014Publication date: August 28, 2014Applicant: DENSO CORPORATIONInventors: Kiyokazu HARUNO, Mitsuhiro MURATA, Mikio SAITO, Masami NIIMI
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Patent number: 8779876Abstract: An electromagnetic switch is provided which includes: a coil generating magnetomotive force; a frame accommodating the coil and generating a flux path; a resin cover covering an opening of the frame; and a current-supply terminal member energizing the coil. The current-supply terminal member includes: a blade-shaped terminal whose end is connected to the coil and whose another end is drawn out of the resin cover in the axial direction of the electromagnetic switch; and a plate-shaped external connection terminal whose end is joined to an end of the blade-shaped terminal and whose another end is drawn out in the direction intersecting the axial direction. A portion between the ends of the external connection terminal is insert-molded in a terminal anchor block provided with the resin cover. A female terminal of a power supply connector provided at an electric supply line is fitted and electrically connected to the external connection terminal.Type: GrantFiled: August 7, 2013Date of Patent: July 15, 2014Assignee: Denso CorporationInventors: Masami Niimi, Mitsuhiro Murata, Kiyokazu Haruno
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Patent number: 8754556Abstract: In a starter for starting an on-vehicle engine, a solenoid is provided to push a pinion gear. The solenoid has an electromagnetic coil composed of a single coil and electrically separated from a motor circuit, a fixed core, and a plunger. Supply of excitation current to the electromagnetic coil allows the fixed core to be magnetized to attract the plunger. Hence, a movement of the plunger results in a push of the movable member toward the ring gear. A switch is provided in the circuit and has a contact, a movable core, and a switch coil functioning as an electromagnet attracting the movable core in response to supply of current to the switch coil. A movement of the movable core results in on/off switching operations of the switch. The switch is allowed to operate independently of the solenoid when both the switch and solenoid are controlled.Type: GrantFiled: April 19, 2010Date of Patent: June 17, 2014Assignee: Denso CorporationInventors: Kiyokazu Haruno, Mitsuhiro Murata, Mikio Saito, Masami Niimi
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Patent number: 8703289Abstract: The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.Type: GrantFiled: October 27, 2006Date of Patent: April 22, 2014Assignee: JSR CorporationInventors: Kouji Tamori, Tetsuo Fukuta, Mitsuhiro Murata, Masaru Ueno, Satoshi Katayose, Eiji Takamoto, Kiyoshi Kasai
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Publication number: 20140084177Abstract: The radiation detector includes: a housing defining an enclosed space filled with a radiation detection gas; first and second electrodes opposing each other across the enclosed space; insulating materials covering surfaces of the first and second electrodes facing the enclosed space; and a voltage source for applying a voltage to the first and second electrodes, whereby a radiation sensor is formed. The radiation sensor is configured so that: in a radiation detection period, a predetermined voltage is applied between the first and second electrodes, and an electric charge is accumulated on the insulating materials by ions and/or electrons generated by ionization of the gas by incident radiation; and in a radiation measurement time, an electric discharge is caused by applying a reverse bias voltage from that applied to the first and second electrodes in the radiation detection period, and a firing voltage is measured.Type: ApplicationFiled: September 11, 2013Publication date: March 27, 2014Applicant: Panasonic CorporationInventors: Yoichi SHINTANI, Ryuichi MURAI, Mitsuhiro MURATA, Tomoyuki MAEDA
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Patent number: 8669973Abstract: A liquid crystal display element, a liquid crystal display device, and a method for displaying with a liquid crystal display element, wherein picture element electrodes (30) and a common electrode (36) are provided, each of a plurality of sub-picture elements (22) is provided with the common electrode (36) and a corresponding one of the picture element electrodes (30) in such a manner that the sub-picture elements (22) have different distances (a first distance d1 and a second distance d2) between the common electrode (36) and their corresponding ones of the picture element electrodes (30), display in a low gray scale region is carried out by means of a first sub-picture element (22a) that is a sub-picture element (22) in which the distance is short, display in a middle gray scale region is carried out by means of a second sub-picture element (22b) that is a sub-picture element (22) in which the distance is long, and display in a high gray scale region is carried out by means of the first sub-picture elementType: GrantFiled: March 2, 2010Date of Patent: March 11, 2014Assignee: Sharp Kabushiki KaishaInventors: Takehisa Sakurai, Shuichi Kozaki, Shoichi Ishihara, Masako Nakamura, Mitsuhiro Murata, Tadashi Ohtake
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Publication number: 20140041613Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.Type: ApplicationFiled: October 23, 2013Publication date: February 13, 2014Applicant: DENSO CORPORATIONInventors: Mitsuhiro MURATA, Hideya NOTANI, Shinji USAMI, Mikio SAITO, Yasuyuki YOSHIDA
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Publication number: 20140016075Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display apparatus that features sufficiently fast response and are excellent in transmittance performance. The liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate. Each of the first substrate and the second substrate includes electrodes. The electrodes of the second substrate include a pair of comb substrates and a planar electrode. The liquid crystal display panel is configured to align liquid crystal molecules in the liquid crystal layer in a direction horizontal to a substrate main surface in response to an electric field generated between the pair of comb electrodes or an electric field generated between the first substrate and the second substrate.Type: ApplicationFiled: September 18, 2013Publication date: January 16, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Yosuke IWATA, Mitsuhiro MURATA, Hiroaki ASAGI, Yasuhiro NASU, Hidefumi YOSHIDA
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Publication number: 20140002762Abstract: A liquid crystal driving method and a liquid crystal display apparatus that achieve a sufficiently fast response, and a sufficiently high transmittance, and reduces transmittance greatly during black image displaying. The liquid crystal driving method includes performing a driving operation to cause a potential difference between a first pair of electrodes during a subframe period, a driving operation to cause a potential difference between a second pair of electrodes, and a driving operation to cause no difference between all the electrodes of the first pairs of electrodes and the second pair of electrodes.Type: ApplicationFiled: March 9, 2012Publication date: January 2, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Yosuke Iwata, Mitsuhiro Murata, Yasuhiro Nasu, Hidefumi Yoshida, Hiroaki Asagi
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Patent number: 8610296Abstract: A starter to start an engine mounted on a vehicle provides an electromagnetic solenoid to push a pinion gear towards a ring gear side, an electromagnetic switch to open and close a motor contact point. The electromagnetic solenoid and the electromagnetic switch are individually controlled by an Electronic Control Unit i.e., ECU. When an idle-stop is triggered, the ECU controls a starter relay to be closed during the ring gear is rotating whereby the pinion gear together with a clutch are pushed out to counter-motor direction by the electromagnetic solenoid. As a result, the pinion gear meshes with the ring gear that is rotating at lower rotational speed. Therefore, the inertial mass of the starter is added to the ring gear so that swinging of the engine can be suppressed.Type: GrantFiled: March 26, 2010Date of Patent: December 17, 2013Assignee: Denso CorporationInventors: Shinji Usami, Mitsuhiro Murata, Masami Niimi
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Publication number: 20130329147Abstract: The present invention provides a liquid crystal panel that can improve viewing angle characteristics and a liquid crystal display. The present invention is a liquid crystal panel of a vertical alignment type and includes a first substrate, a second substrate facing the first substrate, and a liquid crystal layer that is sandwiched between the first substrate and the second substrate and that includes liquid crystal molecules. The first substrate includes a first electrode including a plurality of first line-shaped portions arranged side by side with a gap. The first substrate or the second substrate includes a second electrode. The liquid crystal layer is driven by an electric field generated by at least the first electrode and the second electrode. D/d<3 is satisfied where D is the distance between center lines of the plurality of first line-shaped portions and d is the cell thickness of the liquid crystal panel.Type: ApplicationFiled: December 21, 2011Publication date: December 12, 2013Applicant: sharp Kabushiki KaishaInventors: Mitsuhiro Murata, Yosuke Iwata