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).

  • Patent number: 9576549
    Abstract: 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: Grant
    Filed: February 21, 2014
    Date of Patent: February 21, 2017
    Assignee: Japan Display Inc.
    Inventors: Yoshitoshi Kida, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Makoto Hayashi, Hiroshi Mizuhashi, Kozo Ikeno
  • Patent number: 9557873
    Abstract: 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: Grant
    Filed: October 8, 2015
    Date of Patent: January 31, 2017
    Assignee: JAPAN DISPLAY INC.
    Inventors: Makoto Hayashi, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
  • Patent number: 9499411
    Abstract: 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: Grant
    Filed: October 14, 2014
    Date of Patent: November 22, 2016
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Hirofumi Nakagawa, Tasuku Ishizaka, Hirofumi Ishida, Ken Hagiwara, Akiko Kumakura
  • Publication number: 20160307513
    Abstract: 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: Application
    Filed: April 10, 2014
    Publication date: October 20, 2016
    Applicant: JOLED INC.
    Inventors: Hirofumi NAKAGAWA, Hiroshi TAKAHARA
  • Patent number: 9448661
    Abstract: 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: Grant
    Filed: February 21, 2014
    Date of Patent: September 20, 2016
    Assignee: Japan Display Inc.
    Inventors: Kohei Azumi, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Makoto Hayashi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
  • Publication number: 20160251232
    Abstract: 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: Application
    Filed: October 14, 2014
    Publication date: September 1, 2016
    Inventors: Hirofumi Nakagawa, Tasuku ISHIZAKA, Hirofumi ISHIDA, Ken HAGIWARA, Akiko KUMAKURA
  • Patent number: 9429890
    Abstract: 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: Grant
    Filed: January 20, 2016
    Date of Patent: August 30, 2016
    Assignee: KONICA MINOLTA, INC
    Inventors: Chiaki Yamada, Junya Hirayama, Hirofumi Nakagawa
  • Publication number: 20160223969
    Abstract: 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: Application
    Filed: January 20, 2016
    Publication date: August 4, 2016
    Applicant: Konica Minolta, Inc.
    Inventors: Chiaki Yamada, Junya Hirayama, Hirofumi Nakagawa
  • Publication number: 20160171933
    Abstract: 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: Application
    Filed: July 3, 2014
    Publication date: June 16, 2016
    Applicant: JOLED INC.
    Inventors: Hiroshi TAKAHARA, Hirofumi NAKAGAWA
  • Publication number: 20160163264
    Abstract: 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: Application
    Filed: June 12, 2014
    Publication date: June 9, 2016
    Applicant: JOLED INC.
    Inventors: Masaru NISHIMURA, Toshiyuki KATO, Hirofumi NAKAGAWA
  • Patent number: 9316953
    Abstract: 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: Grant
    Filed: April 15, 2014
    Date of Patent: April 19, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Junya Hirayama, Shigeo Uetake, Yuji Kamoda, Hirofumi Nakagawa, Toshiya Natsuhara
  • Patent number: 9290841
    Abstract: 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: Grant
    Filed: July 24, 2012
    Date of Patent: March 22, 2016
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Masayuki Saito, Junichi Taniuchi, Hirofumi Nakagawa
  • Patent number: 9266916
    Abstract: 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: Grant
    Filed: January 20, 2014
    Date of Patent: February 23, 2016
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Masayuki Saito, Hirofumi Nakagawa, Toshiyuki Shigetomi, Kenji Goto
  • Publication number: 20160026300
    Abstract: 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: Application
    Filed: October 8, 2015
    Publication date: January 28, 2016
    Applicant: Japan Display Inc.
    Inventors: Makoto HAYASHI, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
  • Publication number: 20150364117
    Abstract: 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: Application
    Filed: June 9, 2015
    Publication date: December 17, 2015
    Inventors: Kohei Azumi, Hirofumi Nakagawa, Hiroshi Mizuhashi, Makoto Hayashi
  • Publication number: 20150344510
    Abstract: 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: Application
    Filed: January 20, 2014
    Publication date: December 3, 2015
    Applicant: Tanaka Kikinsoku Kogyo K.K.
    Inventors: Masayuki SAITO, Hirofumi NAKAGAWA, Toshiyuki SHIGETOMI, Kenji GOTO
  • Patent number: 9195334
    Abstract: 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: Grant
    Filed: February 19, 2014
    Date of Patent: November 24, 2015
    Assignee: Japan Display Inc.
    Inventors: Makoto Hayashi, Jouji Yamada, Hirofumi Nakagawa, Michio Yamamoto, Kohei Azumi, Hiroshi Mizuhashi, Kozo Ikeno, Yoshitoshi Kida
  • Patent number: 8913933
    Abstract: 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: Grant
    Filed: October 28, 2013
    Date of Patent: December 16, 2014
    Assignee: Konica Minolta, Inc.
    Inventors: Takeshi Maeyama, Hirofumi Nakagawa
  • Patent number: 8909067
    Abstract: 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: Grant
    Filed: May 14, 2012
    Date of Patent: December 9, 2014
    Assignee: Oclaro Japan, Inc.
    Inventors: Kouji Takeguchi, Shigehiro Takashima, Taichi Kogure, Hirofumi Nakagawa, Saki Narisawa
  • Publication number: 20140321892
    Abstract: 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: Application
    Filed: April 15, 2014
    Publication date: October 30, 2014
    Applicant: KONICA MINOLTA, INC.
    Inventors: Junya HIRAYAMA, Shigeo Uetake, Yuji Kamoda, Hirofumi Nakagawa, Toshiya Natsuhara