Patents by Inventor Takayuki Matsui
Takayuki Matsui 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: 20160047046Abstract: A semiconductor manufacturing apparatus according to an embodiment includes a chamber that is capable of accommodating therein a plurality of semiconductor substrates. A gas supply part supplies process gas to the chamber. A top exhaust port is connected to a top portion of the chamber and exhausts gas within the chamber. A bottom exhaust port is connected to a bottom portion of the chamber and exhausts gas within the chamber. A controller controls a timing of supplying process gas from the gas supply part and a timing of switching between exhaust from the top exhaust port and exhaust from the bottom exhaust port.Type: ApplicationFiled: December 18, 2014Publication date: February 18, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Takayuki MATSUI, Hajime NAGANO
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Patent number: 9264653Abstract: The DVD player includes: a reproducing unit reproducing audio data and video data; a first transmission unit converting, into first data in accordance with a first standard, the audio data and video data reproduced by the reproducing unit, and transmitting the first data to the television; a second transmission unit converting, into second data in accordance with a second standard, the audio data and video data reproduced by the reproducing unit, and transmitting the second data to the television; a display determination unit determining whether or not to display an error message regarding an error occurring in the first transmission unit based on whether or not the video is displayed using the first data; and a display control unit causing the message display unit to display the error message according to a result of the determination by the display determination unit.Type: GrantFiled: January 12, 2011Date of Patent: February 16, 2016Assignee: SOCIONEXT INC.Inventors: Kazuhide Yanase, Takayuki Matsui, Eiichi Moriyama, Masahiro Nakahira, Yoko Kubo
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Patent number: 9257928Abstract: There is provided a control device for a stepping motor, configured to apply an excitation current to multiple coils to rotate a rotor. The control device includes a drive unit configured to apply a drive voltage to the coils, and a control unit configured to control the drive voltage applied by the drive unit, wherein the control unit includes a stop control unit configured to perform, during a hold period of a stop period of the stepping motor, a stop control which gradually decreases a magnitude of the excitation current flowing in the coils such that the rotor moves to a predetermined stop position, and wherein the stop control unit is configured to perform the stop control such that a variation amount of the excitation current per unit time becomes a predetermined threshold value for the stop period or less.Type: GrantFiled: June 11, 2014Date of Patent: February 9, 2016Assignee: Minebea Co., Ltd.Inventors: Kazuo Takada, Takayuki Matsui, Haruka Miyaji
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Publication number: 20160035730Abstract: A semiconductor device according to this invention includes a support film that supports a lower electrode of a capacitor at an upper portion, and the support film includes a first insulating material having a stress within a range of +700 MPa to ?700 MPa. Use of such a support film prevents a phenomenon in which the capacitor lower electrode is twisted. Preferably, the support film has a rate etched by hydrofluoric acid of 1.0 nm/sec or less and more preferably, the support film includes a silicon carbon nitride film.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Inventors: Mitsunari SUKEKAWA, Takayuki MATSUI
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Publication number: 20150338810Abstract: An image forming apparatus includes a transport unit, an image forming unit, a detecting unit, a measuring unit, and a changing unit. The transport unit transports continuous paper. The image forming unit forms an image onto the continuous paper transported by the transport unit. The detecting unit transmits a detection signal every time the number of times a pulse signal, which is generated when the transport unit transports the continuous paper, is detected reaches a predetermined reference value. The measuring unit measures an amount of the continuous paper transported by the transport unit based on the detection signal from the detecting unit. The changing unit changes the reference value of the detecting unit in accordance with a transporting speed at which the continuous paper is transported by the transport unit.Type: ApplicationFiled: December 4, 2014Publication date: November 26, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Takayuki MATSUI, Hiroshi SHIOTA, Masateru HATTORI, Kazuhide KOBAYASHI, Satoshi KONDO
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Publication number: 20150334265Abstract: A print system includes a controller and a printer. The controller transmits image data of an image in which pixels are arranged in a main scanning direction and a subscanning direction, and transmits subscanning-direction line information which is information about a predetermined subscanning-direction line. The printer expands the image data transmitted from the controller into print data for printing, and extracts extraction information in the subscanning direction from the print data so as to compare the subscanning-direction line information with the extraction information. The extraction information corresponds to the transmitted subscanning-direction line information.Type: ApplicationFiled: November 19, 2014Publication date: November 19, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Kazuhide KOBAYASHI, Hiroshi SHIOTA, Masateru HATTORI, Takayuki MATSUI, Satoshi KONDO
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Patent number: 9119300Abstract: A motor control device includes a circuit board having a control circuit controlling electric power to be supplied to a motor, a base fixedly supporting the circuit board, a flexible printed circuit supplying electric power to the motor, a pin terminal disposed on the circuit board, being electrically connected with the control circuit, a dummy pin terminal disposed on the circuit board, being electrically free from the control circuit, a wiring pattern land disposed on the FPC, being electrically connected with the pin terminal, and a dummy wiring pattern land disposed on the FPC, being connected with the dummy pin terminal.Type: GrantFiled: December 18, 2012Date of Patent: August 25, 2015Assignee: MINEBEA CO., LTD.Inventors: Hidetoshi Hijikata, Takayuki Matsui, Kazuo Takada, Haruka Miyaji
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Publication number: 20150214878Abstract: There is provided a motor control device for controlling a stepping motor having at least two coils. The motor control device includes a controller applies a pulse voltage being subjected to pulse width modulation to each of the coils and provides a stop period to a target coil being subjected to switching of a direction of the coil current, during which the application of the pulse voltage to the target coil is temporarily stopped. The controller also performs a control to set on-duty of the pulse voltage applied to all of the coils except the target coil to be either 100% or 0% during the stop period. An out-of step of the stepping motor is detected when a back electromotive voltage induced in the target coil during the stop period satisfies a predetermined out-of-step determination criterion.Type: ApplicationFiled: November 18, 2014Publication date: July 30, 2015Inventors: Kazuo TAKADA, Takayuki MATSUI
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Patent number: 9074996Abstract: A liquid component sensor includes: an infrared light source; a detection cell including: two substrates made of material for penetrating an infrared light therethrough and stacked each other; a passage for flowing liquid arranged between facing surfaces of the substrates; and a detection portion for detecting the liquid provided by at least a part of the passage; a spectrometer for dispersing light penetrating the detection cell; and a light detector for detecting dispersed light. Each substrate includes outside and facing surfaces, so that two substrates provide four surfaces totally. The detection cell further includes a filter for passing the infrared light having a predetermined wavelength selectively. The filter is disposed on at least one of four surfaces at a predetermined position, which corresponds to at least the detection portion.Type: GrantFiled: May 30, 2013Date of Patent: July 7, 2015Assignee: DENSO CORPORATIONInventors: Shuichi Yamashita, Hiroyuki Wado, Takayuki Matsui, Atsushi Miura
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Patent number: 9035506Abstract: A motor includes a rotor, a stator, an excitation coil, and a holder disposed on an outer side of the stator to hold a flexible printed circuit board supplying drive power, wherein the holder includes a main body mounting the flexible printed circuit board thereon, a bridging portion disposed along one of long sides on a first face a of the main body to form a first opening allowing the flexible printed circuit board to be inserted therethrough, and an engaging portion disposed along each of short sides on a second face of the main body to removably fit with a part of a terminal block of the excitation coil.Type: GrantFiled: December 18, 2012Date of Patent: May 19, 2015Assignee: MINEBEA CO., LTD.Inventors: Haruka Miyaji, Takayuki Matsui, Tomoyuki Suzuki
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Publication number: 20150090862Abstract: A lens reflecting a light of a predetermined wavelength, or transmitting and condensing or diverging the light is provided. The lens includes a substrate, and a quasi-periodic structure layer. A plane of the quasi-periodic structure layer is divided into unit cells and is filled with the unit cells in a two-dimensional period. The unit cell has a first region and a second region. An occupancy rate is changed as a distance from a center of the substrate. A resonance mode is defined by a relationship between the occupancy rate and the period length. A lowest order resonance mode is defined by the resonance mode. The period length is set to a predetermined value within a predetermined range including an optimum value. Another lens is provided. A minimum occupancy rate is defined by a smallest occupancy rate. A variation range of the occupancy rate changes across the minimum occupancy rate.Type: ApplicationFiled: September 26, 2014Publication date: April 2, 2015Inventors: Takayuki MATSUI, Hisayoshi FUJIKAWA, Hideo IIZUKA, Hiroyuki WADO, Shuichi YAMASHITA
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Publication number: 20150042258Abstract: There is provided a control device for a stepping motor, configured to apply an excitation current to multiple coils to rotate a rotor. The control device includes a drive unit configured to apply a drive voltage to the coils, and a control unit configured to control the drive voltage applied by the drive unit, wherein the control unit includes a stop control unit configured to perform, during a hold period of a stop period of the stepping motor, a stop control which gradually decreases a magnitude of the excitation current flowing in the coils such that the rotor moves to a predetermined stop position, and wherein the stop control unit is configured to perform the stop control such that a variation amount of the excitation current per unit time becomes a predetermined threshold value for the stop period or less.Type: ApplicationFiled: June 11, 2014Publication date: February 12, 2015Inventors: Kazuo TAKADA, Takayuki MATSUI, Haruka MIYAJI
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Patent number: 8896257Abstract: There is provided a motor control device configured to control an energization state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a measuring unit configured to measure a back electromotive voltage induced at a coil of a phase for which energization is stopped, among the multiple phase coils, an acquiring unit configured to acquire temperature information on temperature of the stepping motor or on temperature corresponding to the temperature of the stepping motor, and a detecting unit configured to detect whether the stepping motor is out of step or not based on a result obtained by the measuring unit and the temperature information acquired by the acquiring unit.Type: GrantFiled: February 20, 2013Date of Patent: November 25, 2014Assignee: Minebea Co., Ltd.Inventors: Kazuo Takada, Takayuki Matsui, Scott Jacobs
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Publication number: 20140203748Abstract: There is provided a motor control device for an actuator having a motor, including a measuring unit configured to measure a temperature of the actuator or a temperature corresponding to the temperature of the actuator, a determining unit configured to determine whether the temperature measured by the measuring unit is lower than a preset temperature, and a boost control unit configured to perform boost control at activation of the motor to increase drive power supplied to the motor if the determining unit determines that the temperature measured by the measuring unit is lower than the preset temperature. The boost control unit is configured to perform the boost control such that, only within a boost period after starting activation of the motor, drive power larger than that supplied to the motor during steady driving after the boost period is supplied to the motor.Type: ApplicationFiled: November 25, 2013Publication date: July 24, 2014Applicant: MINEBEA CO., LTD.Inventors: Kazuo TAKADA, Takayuki MATSUI, Scott JACOBS
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Publication number: 20140176039Abstract: There is provided a motor control device controlling an energizing state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a detecting unit configured to detect whether the stepping motor is out of step, and a reverse rotating unit configured, when the detecting unit detects that the stepping motor is out of step, to rotate the stepping motor in a second rotation direction reverse to a first rotation direction, which is a rotation direction of the stepping motor before detecting out-of-step, by a number of steps with which a stress received by the stepping motor is alleviated, before the stepping motor spontaneously rotates in the second direction.Type: ApplicationFiled: November 25, 2013Publication date: June 26, 2014Applicant: MINEBEA CO., LTD.Inventors: Kazuo TAKADA, Takayuki MATSUI, Scott JACOBS, Hidetoshi HIJIKATA
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Patent number: 8643237Abstract: There is provided an actuator including a motor and a case adapted to house the motor. In the actuator, an output shaft of the motor is supported by a structured configured such that an elastic member is disposed between the case and at least one end of the output shaft, wherein the elastic member is in contact with a portion of the case in an engaging manner whereby the elastic member is prevented from shifting relative to the case in the rotation direction of the output shaft, and also wherein the elastic member is in contact with a portion of the motor in an engaging manner whereby a body of the motor is prevented from shifting relative to the elastic member in the rotation direction of the output shaft.Type: GrantFiled: June 21, 2011Date of Patent: February 4, 2014Assignee: Minebea Co., Ltd.Inventors: Haruka Miyaji, Tomoyuki Suzuki, Masaki Kagawa, Takayuki Matsui
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Patent number: 8603904Abstract: A silicon substrate having a first silicon oxide film formed via thermal oxidation and a second silicon oxide film formed via chemical vapor deposition and the like is subjected to preprocessing prior to selective epitaxial growth, wherein both the first and second silicon oxide films are etched with the same etching rate so as to completely remove the first silicon oxide film. Thus, it is possible to precisely control the sizes of contact holes formed in the silicon substrate, thus preventing contact plugs from short-circuiting with silicon epitaxial layers.Type: GrantFiled: February 13, 2009Date of Patent: December 10, 2013Assignee: Elpida Memory, Inc.Inventor: Takayuki Matsui
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Publication number: 20130320214Abstract: A liquid component sensor includes: an infrared light source; a detection cell including: two substrates made of material for penetrating an infrared light therethrough and stacked each other; a passage for flowing liquid arranged between facing surfaces of the substrates; and a detection portion for detecting the liquid provided by at least a part of the passage; a spectrometer for dispersing light penetrating the detection cell; and a light detector for detecting dispersed light. Each substrate includes outside and facing surfaces, so that two substrates provide four surfaces totally. The detection cell further includes a filter for passing the infrared light having a predetermined wavelength selectively. The filter is disposed on at least one of four surfaces at a predetermined position, which corresponds to at least the detection portion.Type: ApplicationFiled: May 30, 2013Publication date: December 5, 2013Applicant: DENSO CORPORATIONInventors: Shuichi YAMASHITA, Hiroyuki WADO, Takayuki MATSUI, Atsushi MIURA
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Patent number: 8530311Abstract: Disclosed herein is a method of manufacturing a semiconductor device. The method comprises forming a first silicon film on a semiconductor substrate, forming a second silicon film on the first silicon film, forming a third silicon film on the second silicon film, and forming a first diffusion barrier film on the third silicon film. The method further comprises performing a thermal treatment to diffuse an impurity included in the second silicon film into at least the first silicon film and the semiconductor substrate, respectively.Type: GrantFiled: May 15, 2012Date of Patent: September 10, 2013Assignee: Elpida Memory, Inc.Inventor: Takayuki Matsui
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Publication number: 20130229139Abstract: There is provided a motor control device configured to control an energization state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a measuring unit configured to measure a back electromotive voltage induced at a coil of a phase for which energization is stopped, among the multiple phase coils, an acquiring unit configured to acquire temperature information on temperature of the stepping motor or on temperature corresponding to the temperature of the stepping motor, and a detecting unit configured to detect whether the stepping motor is out of step or not based on a result obtained by the measuring unit and the temperature information acquired by the acquiring unit.Type: ApplicationFiled: February 20, 2013Publication date: September 5, 2013Applicant: MINEBEA CO., LTD.Inventors: Kazuo TAKADA, Takayuki MATSUI, Scott JACOBS