Patents by Inventor Akira Furukawa

Akira Furukawa 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).

  • Publication number: 20140253009
    Abstract: A control apparatus for AC rotating machine includes: a voltage command calculation means for calculating voltage commands on two rotational axes; a first voltage application means for applying voltages to first windings of a multiple-winding AC rotating machine having at least the first windings and second windings based on the voltage commands on two rotational axes output by the voltage command calculation means; and a second voltage application means for applying voltages to the second windings based on the voltage commands on two rotational axes output by the voltage command calculation means, wherein the second voltage application means applies voltages to the second windings based on the deviations between the currents fed to the first windings and the currents fed to the second windings.
    Type: Application
    Filed: May 22, 2012
    Publication date: September 11, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiko Kimpara, Akira Furukawa, Shunsuke Nakajima, Jiro Okada
  • Publication number: 20140246999
    Abstract: There is provided a motor control device for controlling a motor including plural sets of windings, which is configured so that, when a fault detection means detects a fault, inverters in the normal side other than in the fault side are continued to be controlled by normal-time current control means and further, inverters in the fault side are continued to be controlled by fault-time voltage commands generated by a fault-time current control means configured with a fault-time normal-side command generator and a fault-time fault-side command generator, so as to emphasis a torque ripple of the motor when a winding fault of the motor or an inverter fault occurs, to thereby cause a user to surely recognize the fault.
    Type: Application
    Filed: January 27, 2012
    Publication date: September 4, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Isao Kezobo, Kosuke Nakano, Yoshihito Asao, Akira Furukawa
  • Patent number: 8720851
    Abstract: When a valve body is rotated toward a full-close position in a valve-close mode, a control portion controls an electric motor so that the rotating speed of the valve body is lower than that in a valve-open mode. A rotating speed of the valve body around the shaft in the valve-close mode is lower than that in the valve-open mode. Thus, when the seal ring is brought into contact with the inner wall surface, an impact generated therebetween can be moderated. While the valve body is rotated toward the full-close position, a seal ring is gradually elastically deformed. A sliding friction between the seal ring and the inner wall surface can be reduced.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: May 13, 2014
    Assignee: Denso Corporation
    Inventors: Akira Furukawa, Ryo Sano, Kazushi Sasaki, Yuusuke Niwa
  • Patent number: 8647813
    Abstract: Disclosed are a photosensitive composition containing an aqueous dispersion and having excellent storage stability, and a photosensitive lithographic printing plate material using the photosensitive composition and being capable of being developed using water, which is advantageous not only in that the photosensitive lithographic printing plate material exhibits high sensitivity and high image quality as well as excellent storage stability, but also in that even when the printing plate material is repeatedly subjected to developing treatment using water, the generation of sludge derived from the photosensitive composition in the developer repeatedly used is suppressed, achieving excellent developing properties.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: February 11, 2014
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Akira Furukawa, Takahiro Hagihara
  • Publication number: 20130022927
    Abstract: Disclosed are a photosensitive composition containing an aqueous dispersion and having excellent storage stability, and a photosensitive lithographic printing plate material using the photosensitive composition and being capable of being developed using water, which is advantageous not only in that the photosensitive lithographic printing plate material exhibits high sensitivity and high image quality as well as excellent storage stability, but also in that even when the printing plate material is repeatedly subjected to developing treatment using water, the generation of sludge derived from the photosensitive composition in the developer repeatedly used is suppressed, achieving excellent developing properties.
    Type: Application
    Filed: March 25, 2011
    Publication date: January 24, 2013
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Akira Furukawa, Takahiro Hagihara
  • Publication number: 20120248353
    Abstract: When a valve body is rotated toward a full-close position in a valve-close mode, a control portion controls an electric motor so that the rotating speed of the valve body is lower than that in a valve-open mode. A rotating speed of the valve body around the shaft in the valve-close mode is lower than that in the valve-open mode. Thus, when the seal ring is brought into contact with the inner wall surface, an impact generated therebetween can be moderated. While the valve body is rotated toward the full-close position, a seal ring is gradually elastically deformed. A sliding friction between the seal ring and the inner wall surface can be reduced.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 4, 2012
    Applicant: DENSO CORPORATION
    Inventors: Akira FURUKAWA, Ryo SANO, Kazushi SASAKI, Yuusuke NIWA
  • Patent number: 8261725
    Abstract: A converting mechanism is provided between an EGR control valve driven by an actuator and an intake-air valve for generating negative pressure, so that the intake-air valve is also driven by the actuator. The converting mechanism has a cam plate rotated together with the EGR control valve and an arm rotated together with the intake-air valve. A cam groove formed in the cam plate is engaged with a driving pin of the arm. The intake-air valve is held at its maximum valve opening position, when the EGR control valve is rotated in a first angular range, while the intake-air valve is rotated from the valve opening position to a maximum valve closing position when the EGR control valve is rotated in a second angular range.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: September 11, 2012
    Assignee: Denso Corporation
    Inventors: Akira Furukawa, Osamu Shimane, Shinsuke Miyazaki, Yuichiro Moritani
  • Publication number: 20120049305
    Abstract: A solid-state imaging device includes: photoelectric conversion units disposed in the form of matrix in an imaging region and a peripheral region around the imaging region; transfer electrodes provided on a side of the photoelectric conversion units arranged in the vertical direction of the matrix; and first-layer wirings and second-layer wirings in a multi-layer wiring structure disposed to connect the transfer electrodes in the horizontal direction of the matrix, wherein the first-layer wirings and the second-layer wirings are provided as light-shielding patterns for covering the photoelectric conversion units in the peripheral region.
    Type: Application
    Filed: August 9, 2011
    Publication date: March 1, 2012
    Applicant: Sony Corporation
    Inventors: Masashi Takami, Ryoma Yoshinaga, Akira Furukawa
  • Patent number: 8122873
    Abstract: An actuator includes an electric motor and a drive force transmitting mechanism. The drive force transmitting mechanism includes a rotary gear and a rotary cam. The rotary gear transmits a drive force of the electric motor to an EGR valve to drive the same. The rotary cam transmits the drive force of the electric motor to a mode change valve to drive the same. The rotary cam is releasably linkable to the rotary gear to receive the drive force of the electric motor through the rotary gear.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: February 28, 2012
    Assignee: Denso Corporation
    Inventors: Akira Furukawa, Osamu Shimane, Yuichiro Moritani, Shinsuke Miyazaki
  • Publication number: 20110318689
    Abstract: An object of the present invention is to provide a light-sensitive lithographic printing plate material having high sensitivity, generating no background stain even when development is carried out by using a neutral developing solution having a pH of less than 9, or an alkali developing solution having a pH in the range of 9 to 12, generating no background stain even when the plate is allowed to stand after developing treatment or during printing for a long period of time, and having excellent in printing endurance and ink transfer property, and it is accomplished by a light-sensitive lithographic printing plate material which comprises a support and a photo-curable light-sensitive layer formed thereon, said photo-curable light-sensitive layer contains a polymer synthesized by using at least a compound represented by the following mentioned general formula I: wherein R1, R2 and R3 each independently represent an alkyl group or an alkoxy group each having 1 to 10 carbon atoms; provided that at least two
    Type: Application
    Filed: February 12, 2010
    Publication date: December 29, 2011
    Inventor: Akira Furukawa
  • Publication number: 20110264488
    Abstract: An audition system for general participation comprising a cell phone handset equipped with ID, an applications server connected to a network, such applications servers having a CPU which executes audition application and voting program, the aforementioned program, divides the review groups used as vote target which consists review by a vote of each stage of more applicants, the system program that assembles a group of applicants chosen by review of lower orders, then performs a higher level examination, and results in the final assessments, where a multiplex vote program of a first-in first-out (FIFO) system the performs higher level examination while continuing to review the lower level groups of whose numbers constitute higher level review group in an ongoing process at the same time the middle of review of lower orders gathered, a feature is included where the program removes the display of the review group for which review has ended.
    Type: Application
    Filed: August 28, 2009
    Publication date: October 27, 2011
    Inventors: Osamu Murayama, Akira Furukawa, Takayuki Magata
  • Publication number: 20110023846
    Abstract: A low pressure EGR regulating valve is driven by an electric actuator, and an output of the electric actuator is transmitted to an intake air throttle valve through a link device. An ECU executes a failure determination to determine presence of a failure in a case where a sensed opening degree, which is sensed with a low pressure EGR opening degree sensor, is other than an opening degree that corresponds to a maximum opening degree of the throttle valve limited by a mechanical stopper. The ECU executes the failure determination after the energization of the electric actuator is stopped in response to stopping of the engine.
    Type: Application
    Filed: July 28, 2010
    Publication date: February 3, 2011
    Applicant: DENSO CORPORATION
    Inventors: Shinsuke Miyazaki, Akira Furukawa, Osamu Shimane, Kazushi Sasaki, Eiji Takemoto
  • Publication number: 20100237269
    Abstract: An object of the invention for a valve device having an inclined valve body is to suppress pressure loss at a valve opened condition to a smaller amount. The valve body is composed of a disc shaped valve member for closing a fluid passage, a first supporting portion provided at an outer periphery of the valve member and connected to a first shaft member, and a second supporting portion provided at another outer periphery of the valve member and connected to a second shaft member. The valve body is formed of a press-molded metal plate and forms a Z-shape when viewed in a direction parallel to a surface of the valve member.
    Type: Application
    Filed: March 15, 2010
    Publication date: September 23, 2010
    Applicant: DENSO CORPORATION
    Inventors: Akira Furukawa, Osamu Shimane, Shinsuke Miyazaki, Yuichiro Moritani
  • Publication number: 20100206274
    Abstract: A converting mechanism is provided between an EGR control valve driven by an actuator and an intake-air valve for generating negative pressure, so that the intake-air valve is also driven by the actuator. The converting mechanism has a cam plate rotated together with the EGR control valve and an arm rotated together with the intake-air valve. A cam groove formed in the cam plate is engaged with a driving pin of the arm. The intake-air valve is held at its maximum valve opening position, when the EGR control valve is rotated in a first angular range, while the intake-air valve is rotated from the valve opening position to a maximum valve closing position when the EGR control valve is rotated in a second angular range.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 19, 2010
    Applicant: DENSO CORPORATION
    Inventors: Akira Furukawa, Osamu Shimane, Shinsuke Miyazaki, Yuichiro Moritani
  • Publication number: 20100199957
    Abstract: An EGR control valve is driven by an actuator so as to control EGR amount by changing its opening degree. An EGR cooling device is provided in an EGR passage for cooling down EGR gas. A bypass passage is provided to the EGR passage, so that EGR gas may bypass the EGR cooling device. A switching valve is provided in the EGR passage for switching EGR mode from a hot EGR mode in which the EGR gas flows through the bypass passage to a cold EGR mode in which the EGR gas flows through the EGR cooling device, or vice versa. A converting mechanism is provided between the EGR control valve and the switching valve, so that the switching valve is driven by the actuator from its hot to cold switching position (or vice versa) when the EGR control valve is driven by the same actuator in a small angular range.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 12, 2010
    Applicant: DENSO CORPORATION
    Inventors: Akira Furukawa, Osamu Shimane, Shinsuke Miyazaki, Yuichiro Moritani
  • Publication number: 20100112478
    Abstract: The present invention provides a highly sensitive photosensitive lithographic printing plate material capable of being used in a CTP system, which allows on-press development and/or development with water and has superior printability.
    Type: Application
    Filed: March 21, 2008
    Publication date: May 6, 2010
    Applicant: Mitsubishi Paper Mills Limited
    Inventor: Akira Furukawa
  • Publication number: 20100089370
    Abstract: An actuator includes an electric motor and a drive force transmitting mechanism. The drive force transmitting mechanism includes a rotary gear and a rotary cam. The rotary gear transmits a drive force of the electric motor to an EGR valve to drive the same. The rotary cam transmits the drive force of the electric motor to a mode change valve to drive the same. The rotary cam is releasably linkable to the rotary gear to receive the drive force of the electric motor through the rotary gear.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 15, 2010
    Applicant: DENSO CORPORATION
    Inventors: Akira FURUKAWA, Osamu Shimane, Yuichiro Moritani, Shinsuke Miyazaki
  • Patent number: 7078893
    Abstract: A rotation angle detecting device includes a magnet (4), a magnetic substance unit (5), and a non-contact magnetic detection element (7). The magnet (4) rotates with an object to be measured and includes two ends magnetized so as to have opposite polarities. The magnetic substance unit (5) forms a predetermined air gap with the two ends of the magnet (4) and is divided into magnetic members (6) so as to provide plane symmetry with respect to a vertical plane perpendicularly crossing a rotational center axis of the magnet (4) to form a magnetic detection gap (9) by the division. The non-contact magnetic detection element (7) is provided in the magnetic detection gap (9) between the magnetic members (6) so as to output a signal corresponding to a density of a magnetic flux passing through the magnetic detection gap (9). The rotation angle of the object to be measured is detected based on the output signal from the magnetic detection element (7).
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: July 18, 2006
    Assignee: Denso Corporation
    Inventors: Yuji Nakano, Ryo Sano, Akira Furukawa, Shinji Ishida
  • Publication number: 20060119353
    Abstract: A rotation angle detecting device includes a magnet (4), a magnetic substance unit (5), and a non-contact magnetic detection element (7). The magnet (4) rotates with an object to be measured and includes two ends magnetized so as to have opposite polarities. The magnetic substance unit (5) forms a predetermined air gap with the two ends of the magnet (4) and is divided into magnetic members (6) so as to provide plane symmetry with respect to a vertical plane perpendicularly crossing a rotational center axis of the magnet (4) to form a magnetic detection gap (9) by the division. The non-contact magnetic detection element (7) is provided in the magnetic detection gap (9) between the magnetic members (6) so as to output a signal corresponding to a density of a magnetic flux passing through the magnetic detection gap (9). The rotation angle of the object to be measured is detected based on the output signal from the magnetic detection element (7).
    Type: Application
    Filed: November 30, 2005
    Publication date: June 8, 2006
    Applicant: DENSO CORPORATION
    Inventors: Yuji Nakano, Ryo Sano, Akira Furukawa, Shinji Ishida
  • Publication number: 20060063110
    Abstract: There is disclosed a process for preparing a negative type light-sensitive lithographic printing plate having an aluminum plate as a support and a light-sensitive layer, provided on the support, containing a polymer, an ethylenically unsaturated compound, a photopolymerization initiator and a sensitizer having an absorption at a wavelength region of from visible light to infrared rays, which comprises subjecting the aluminum support after anodization treatment to a treatment in a solution containing potassium silicate and having a molar ratio of SiO2/M2O where M represents an alkali metal being in the range of 0.3 to 3.5.
    Type: Application
    Filed: September 20, 2004
    Publication date: March 23, 2006
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Hideo Kiyoyama, Yutaka Araki, Takashi Miyazaki, Akira Furukawa, Kenji Hirata