Patents by Inventor Hirofumi Nakagawa
Hirofumi Nakagawa 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: 9576549Abstract: According to one embodiment, an electronic apparatus, includes a sensor-equipped display device includes a display device and a sensor configured to detect a contact or proximate position, a display driver configured to output an image display signal to the display device and to output a drive signal to the sensor, a detecting circuit configured to generate, based on the information from the sensor, raw data (Raw data) including three-dimensional information of coordinates of a position on the display device and a physical quantity at the coordinates, and an application processor configured to discriminate whether a part of the region in the display area should be further sensed or not, based on the raw data, and if the part of the region is further sensed, to output the range of the display device to be further sensed and the timing of driving the sensor to the display driver.Type: GrantFiled: February 21, 2014Date of Patent: February 21, 2017Assignee: Japan Display Inc.Inventors: Yoshitoshi Kida, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Makoto Hayashi, Hiroshi Mizuhashi, Kozo Ikeno
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Patent number: 9557873Abstract: A sensor-integrated display panel including an operation surface for performing an input operation and an image display surface which are formed integrally with a sensor as one piece. A data transfer device supplies the sensor-integrated display panel with a drive signal for driving the sensor and outputs sensing data corresponding to a potential of a sensor signal output from the sensor. A contact electrode is provided in a frame formed around the sensor-integrated display panel to vary the potential of the sensor signal when a conductor touches or does not touch to the frame. An application executing device receives and analyzes the sensing data and generates a signal to select an operating function in accordance with an analysis result.Type: GrantFiled: October 8, 2015Date of Patent: January 31, 2017Assignee: JAPAN DISPLAY INC.Inventors: Makoto Hayashi, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
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Patent number: 9499411Abstract: The present invention provides a method for producing DCR that can efficiently sublimate a large amount of crude DCR to stably supply DCR. Also, the present invention relates to a sublimation apparatus applicable to the production method. The method for producing an organoruthenium compound for a chemical vapor deposition raw material containing dodecacarbonyl triruthenium (DCR) includes the step for purifying DCR by separating impurity elements from crude DCR by a sublimation method, and in the purification step, crude DCR is heated and sublimated in an atmosphere having a carbon monoxide concentration of 30 to 100% and then cooled to precipitate DCR. According to the present invention, a large amount of crude DCR can be efficiently sublimated, and thus a large amount of DCR can be supplied stably.Type: GrantFiled: October 14, 2014Date of Patent: November 22, 2016Assignee: Tanaka Kikinzoku Kogyo K.K.Inventors: Hirofumi Nakagawa, Tasuku Ishizaka, Hirofumi Ishida, Ken Hagiwara, Akiko Kumakura
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Publication number: 20160307513Abstract: A gate drive integrated circuit includes: clock terminals; a bidirectional buffer that is located between the clock terminals and controls the input-output direction of a clock signal; a connection mode control terminal that receives a connection mode control signal; and a pair of signal direction control terminals that receive a signal direction control signal, wherein the bidirectional buffer fixes the input-output direction of the clock signal to one direction in the case where the logic state of the connection mode control signal is a first logic state, and switches the input-output direction of the clock signal depending on the logic state of the signal direction control signal in the case where the logic state of the connection mode control signal is a second logic state different from the first logic state.Type: ApplicationFiled: April 10, 2014Publication date: October 20, 2016Applicant: JOLED INC.Inventors: Hirofumi NAKAGAWA, Hiroshi TAKAHARA
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Patent number: 9448661Abstract: According to one embodiment, an electronic device includes a display device having a plurality of first electrodes arranged in a matrix form, second electrodes including a plurality of electrode patterns extending in a first direction and aligned in a second direction to cross the first direction, and third electrodes including a plurality of electrode patterns extending in the second direction and aligned in the first direction, a display driver configured to apply a sensor drive signal to the second electrodes, a detection circuit configured to transmit a detection data group including physical quantity data detected in one detection period from the plurality of electrode patterns of the third electrodes at each time when the sensor drive signal is applied to the second electrodes, and an application processor configured to process the detection data group received from the detection circuit.Type: GrantFiled: February 21, 2014Date of Patent: September 20, 2016Assignee: Japan Display Inc.Inventors: Kohei Azumi, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Makoto Hayashi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
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Publication number: 20160251232Abstract: The present invention provides a method for producing DCR that can efficiently sublimate a large amount of crude DCR to stably supply DCR. Also, the present invention relates to a sublimation apparatus applicable to the production method. The method for producing an organoruthenium compound for a chemical vapor deposition raw material containing dodecacarbonyl triruthenium (DCR) includes the step for purifying DCR by separating impurity elements from crude DCR by a sublimation method, and in the purification step, crude DCR is heated and sublimated in an atmosphere having a carbon monoxide concentration of 30 to 100% and then cooled to precipitate DCR. According to the present invention, a large amount of crude DCR can be efficiently sublimated, and thus a large amount of DCR can be supplied stably.Type: ApplicationFiled: October 14, 2014Publication date: September 1, 2016Inventors: Hirofumi Nakagawa, Tasuku ISHIZAKA, Hirofumi ISHIDA, Ken HAGIWARA, Akiko KUMAKURA
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Patent number: 9429890Abstract: There is provided a fixing device for fixing a toner image formed on a surface of a recording medium by toner, wherein the toner includes a releasing agent and satisfies Ta<Tb, where Ta (° C.) represents a melting point of the releasing agent and Tb (° C.) represents a temperature at which an elastic modulus of the toner is 1×104 Pa, the fixing device includes a first fixing portion and a second fixing portion in this order along a conveyance direction of the recording medium, the first fixing portion presses and heats the toner image such that a maximum temperature T13 (° C.) of the surface of the recording medium satisfies Ta?T13<Tb, and the second fixing portion presses and heats the toner image such that a maximum temperature T23 (° C.) of the surface of the recording medium satisfies T23?Tb.Type: GrantFiled: January 20, 2016Date of Patent: August 30, 2016Assignee: KONICA MINOLTA, INCInventors: Chiaki Yamada, Junya Hirayama, Hirofumi Nakagawa
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Publication number: 20160223969Abstract: There is provided a fixing device for fixing a toner image formed on a surface of a recording medium by toner, wherein the toner includes a releasing agent and satisfies Ta<Tb, where Ta (° C.) represents a melting point of the releasing agent and Tb (° C.) represents a temperature at which an elastic modulus of the toner is 1×104 Pa, the fixing device includes a first fixing portion and a second fixing portion in this order along a conveyance direction of the recording medium, the first fixing portion presses and heats the toner image such that a maximum temperature T13 (° C.) of the surface of the recording medium satisfies Ta?T13<Tb, and the second fixing portion presses and heats the toner image such that a maximum temperature T23 (° C.) of the surface of the recording medium satisfies T23?Tb.Type: ApplicationFiled: January 20, 2016Publication date: August 4, 2016Applicant: Konica Minolta, Inc.Inventors: Chiaki Yamada, Junya Hirayama, Hirofumi Nakagawa
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Publication number: 20160171933Abstract: A gate driver IC (i.e., gate driver circuit), when set to a first mode by a logic signal of the terminal FNC*, shifts data in the gate driver IC in synchronization with one clock cycle of a clock inputted to the terminal CLK** (clock input terminal), and outputs a selection voltage or a non-selection voltage based on a data position in the gate driver IC; and when set to a second mode by a logic signal of the tenninal FNC*, shifts data in the gate driver IC in synchronization with n clock cycles (n is an integer of at least 2) of a clock inputted to the terminal CLK**, and outputs the selection voltage or the non-selection voltage based on the data position in the gate driver IC.Type: ApplicationFiled: July 3, 2014Publication date: June 16, 2016Applicant: JOLED INC.Inventors: Hiroshi TAKAHARA, Hirofumi NAKAGAWA
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Publication number: 20160163264Abstract: An EL display apparatus includes: gate driver ICs (i. e., gate driver circuits); a plurality of pixels; gate signal lines each transmit a selection voltage for selecting a pixel from the pixels and non-selection voltage for placing a pixel in a non-selection state; and TCON. The pixels each include: a driving transistor; an EL element; a first switching transistor; and a second switching transistor. The gate driver ICs each include scanning and outputting buffer circuits which are connected to TCON to which an output signal of each of the scanning and outputting buffer circuits is inputted.Type: ApplicationFiled: June 12, 2014Publication date: June 9, 2016Applicant: JOLED INC.Inventors: Masaru NISHIMURA, Toshiyuki KATO, Hirofumi NAKAGAWA
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Wet-type image formation apparatus and a charging device for charging a recording medium, and method
Patent number: 9316953Abstract: A wet-type image formation apparatus includes: an intermediate transfer body that carries a toner image including toner particles, which are charged to have a first polarity, and a carrier liquid; a transferring roller that transfers a toner image onto a transfer surface of a recording medium; a charging device that charges the transfer surface to have a second polarity opposite to the first polarity; and a fixing mechanism that fixes the toner image. The fixing mechanism includes a noncontact heating device. The noncontact heating device forms the toner particles into a film such that the toner particles and the carrier liquid are separated from each other by heating the toner image when the toner particles charged to the first polarity is electrostatically adsorbed onto the transfer surface charged to have the second polarity. The film of the toner particles is fixed onto the transfer surface.Type: GrantFiled: April 15, 2014Date of Patent: April 19, 2016Assignee: KONICA MINOLTA, INC.Inventors: Junya Hirayama, Shigeo Uetake, Yuji Kamoda, Hirofumi Nakagawa, Toshiya Natsuhara -
Patent number: 9290841Abstract: The present invention is an organoruthenium compound for a chemical vapor deposition raw material, including dodecacarbonyl triruthenium represented by the following chemical formula, wherein the iron (Fe) concentration is 1 ppm or less. The DCR in the present invention can be produced by obtaining crude DCR by directly carbonylating ruthenium through allowing a ruthenium salt and carbon monoxide to react with each other and by purifying the crude DCR by a sublimation method. In the synthesis step, the concentration of Fe in the obtained crude DCR is preferably set at 10 ppm or less.Type: GrantFiled: July 24, 2012Date of Patent: March 22, 2016Assignee: TANAKA KIKINZOKU KOGYO K.K.Inventors: Masayuki Saito, Junichi Taniuchi, Hirofumi Nakagawa
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Patent number: 9266916Abstract: The present invention is a method for producing dodecacarbonyl triruthenium (DCR) including a process of carbonylating ruthenium chloride with carbon monoxide, in which an amine is added to a reaction system at 0.8 molar equivalent or more with respect to chlorine of the ruthenium chloride and the carbonylation is conducted at a reaction temperature of 50 to 100° C. and a reaction pressure of 0.2 to 0.9 MPa. According to the present invention, it is possible to produce dodecacarbonyl triruthenium having less residual impurity metals without applying a reaction condition of a high pressure.Type: GrantFiled: January 20, 2014Date of Patent: February 23, 2016Assignee: Tanaka Kikinzoku Kogyo K.K.Inventors: Masayuki Saito, Hirofumi Nakagawa, Toshiyuki Shigetomi, Kenji Goto
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Publication number: 20160026300Abstract: A sensor-integrated display panel including an operation surface for performing an input operation and an image display surface which are formed integrally with a sensor as one piece. A data transfer device supplies the sensor-integrated display panel with a drive signal for driving the sensor and outputs sensing data corresponding to a potential of a sensor signal output from the sensor. A contact electrode is provided in a frame formed around the sensor-integrated display panel to vary the potential of the sensor signal when a conductor touches or does not touch to the frame. An application executing device receives and analyzes the sensing data and generates a signal to select an operating function in accordance with an analysis result.Type: ApplicationFiled: October 8, 2015Publication date: January 28, 2016Applicant: Japan Display Inc.Inventors: Makoto HAYASHI, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
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Publication number: 20150364117Abstract: According to one embodiment, a touch detection device includes a plurality of drive electrodes, a plurality of detection electrodes, a display driver which performs a touch scanning drive by supplying a touch drive signal to a target drive electrode to be driven, and a touch driver which transmits and receives a signal to and from the display driver, wherein at least one of the number of pulses of the drive synchronizing signal and a pulse width of each of the pulses of the drive synchronizing signal is determined based on the signal received from the display driver.Type: ApplicationFiled: June 9, 2015Publication date: December 17, 2015Inventors: Kohei Azumi, Hirofumi Nakagawa, Hiroshi Mizuhashi, Makoto Hayashi
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Publication number: 20150344510Abstract: The present invention is a method for producing dodecacarbonyl triruthenium (DCR) including a process of carbonylating ruthenium chloride with carbon monoxide, in which an amine is added to a reaction system at 0.8 molar equivalent or more with respect to chlorine of the ruthenium chloride and the carbonylation is conducted at a reaction temperature of 50 to 100° C. and a reaction pressure of 0.2 to 0.9 MPa. According to the present invention, it is possible to produce dodecacarbonyl triruthenium having less residual impurity metals without applying a reaction condition of a high pressure.Type: ApplicationFiled: January 20, 2014Publication date: December 3, 2015Applicant: Tanaka Kikinsoku Kogyo K.K.Inventors: Masayuki SAITO, Hirofumi NAKAGAWA, Toshiyuki SHIGETOMI, Kenji GOTO
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Patent number: 9195334Abstract: A sensor-integrated display panel including an operation surface for performing an input operation and an image display surface which are formed integrally with a sensor as one piece. A data transfer device supplies the sensor-integrated display panel with a drive signal for driving the sensor and outputs sensing data corresponding to a potential of a sensor signal output from the sensor. A contact electrode is provided in a frame formed around the sensor-integrated display panel to vary the potential of the sensor signal when a conductor touches or does not touch to the frame. An application executing device receives and analyzes the sensing data and generates a signal to select an operating function in accordance with an analysis result.Type: GrantFiled: February 19, 2014Date of Patent: November 24, 2015Assignee: Japan Display Inc.Inventors: Makoto Hayashi, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
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Patent number: 8913933Abstract: A paper conveying device includes an intermediate transfer member and a paper conveying member driven so as to rotate at the same rotational speed, and an adjusting device. On an outer peripheral surface of the intermediate transfer member, an elastic layer is provided. An axes distance between the intermediate transfer member and the paper conveying member is adjusted by the adjusting device so that drive torque for rotating the intermediate transfer member and the paper conveying member at the same rotational speed becomes smaller than a target set value. Accordingly, occurrence of the shear is suppressed without changing a rotational speed ratio of rollers arranged opposite to each other.Type: GrantFiled: October 28, 2013Date of Patent: December 16, 2014Assignee: Konica Minolta, Inc.Inventors: Takeshi Maeyama, Hirofumi Nakagawa
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Patent number: 8909067Abstract: The I phase modulator modulates a phase based on the bias voltage in which a first modulation signal and a first pilot signal are inherent and the Q phase modulator modulates a phase based on the bias voltage in which a second pilot signal different from the first pilot signal and a second modulation signal are inherent. A time-average power synchronous detection unit detects an optical power at a timing at which the positivity and negativity of the voltages of both pilot signals become the same, and an optical power when the positivity and negativity of the voltages of both pilot signals are opposite. The bias voltage control unit controls the bias voltage so that the difference between both the optical powers becomes small based on the detection result of the time-average power synchronous detection unit.Type: GrantFiled: May 14, 2012Date of Patent: December 9, 2014Assignee: Oclaro Japan, Inc.Inventors: Kouji Takeguchi, Shigehiro Takashima, Taichi Kogure, Hirofumi Nakagawa, Saki Narisawa
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Publication number: 20140321892Abstract: A wet-type image formation apparatus includes: an intermediate transfer body that carries a toner image including toner particles, which are charged to have a first polarity, and a carrier liquid; a transferring roller that transfers a toner image onto a transfer surface of a recording medium; a charging device that charges the transfer surface to have a second polarity opposite to the first polarity; and a fixing mechanism that fixes the toner image. The fixing mechanism includes a noncontact heating device. The noncontact heating device forms the toner particles into a film such that the toner particles and the carrier liquid are separated from each other by heating the toner image when the toner particles charged to the first polarity is electrostatically adsorbed onto the transfer surface charged to have the second polarity. The film of the toner particles is fixed onto the transfer surface.Type: ApplicationFiled: April 15, 2014Publication date: October 30, 2014Applicant: KONICA MINOLTA, INC.Inventors: Junya HIRAYAMA, Shigeo Uetake, Yuji Kamoda, Hirofumi Nakagawa, Toshiya Natsuhara