Patents by Inventor Hiroshi Nakaoka

Hiroshi Nakaoka 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: 20120068529
    Abstract: A system including: a liquid-pressure source device that can supply working fluid to a brake device; and an ABS valve device. The system executes a first control in which a supply pressure of the working fluid becomes a target supply pressure and a second control for making the supply pressure fall within the target range. In this system, when the valve device is not being operated, the first control is executed. When the valve device is being operated, the second control is normally operated, and when the supply pressure is higher than a threshold value, the first control is executed. Where completion of the operation of the valve device is estimated, the system performs at least one of reducing the threshold value, reducing an upper limit value of the target range, increasing an electric power supplied to a pressure-reduce linear valve during the first control when the valve device is being operated, and reducing the target supply pressure.
    Type: Application
    Filed: April 29, 2010
    Publication date: March 22, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Nakaoka, Tetsuya Miyazaki
  • Publication number: 20110279708
    Abstract: An image capture apparatus includes an image sensor of a line-sequential scanning type, an optical database which stores optical characteristics of the optical system in advance, a calculation unit which calculates optical parameters including at least information of a focal length of the optical system for each area of the image sensor based on drive information of the image sensor and drive information of the optical system, a referring unit which refers to optical characteristics corresponding to the optical parameters calculated by the calculation unit of the optical characteristics stored in the optical database, a correction value generation unit which generates correction values used to correct the image signal based on the optical characteristics referred to by the referring unit, and a correction unit which corrects the image signal using the correction values generated by the correction value generation unit.
    Type: Application
    Filed: April 19, 2011
    Publication date: November 17, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Nakaoka
  • Patent number: 8053607
    Abstract: A method for producing a polyether-polyol having a narrow molecular weight distribution, which comprises carrying out selective fractional extraction of the low-molecular weight component from a polyether-polyol (A) having an average molecular weight of from 500 to 4500 represented by formula (1): HO—[(CH2)4O]n—[(CR1R2)pO]q—H??(1) wherein R1 and R2, which may be the same or different, each represents a hydrogen atom or a linear or branched alkyl group having from 1 to 5 carbon atoms; n indicates a positive integer; p indicates an integer of from 1 to 8; and q indicates 0 or a positive integer, by the use of an aqueous solution (C) containing from 15 to 70 wt % sulfuric acid at a room temperature to 100° C., to thereby suitably determine the amount of the aqueous sulfuric acid solution to the overall organic layer and the sulfuric acid concentration in accordance with the molecular weight and molecular weight distribution of the intended polyether-polyol to be fractionally extracted.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: November 8, 2011
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Kazuaki Okabe, Hiroshi Nakaoka, Ikuhiko Kanehira
  • Patent number: 7834124
    Abstract: It is an object of the invention to provide a ketone-modified resorcinol-formalin resin, which has a moderate flowability when transformed into an aqueous solution and has both a reduced content of resorcinol monomer and a reduced content of resorcinol-formalin resin of resorcinol pentanuclear or higher nuclear bodies. The invention relates to a ketone-modified resorcinol-formalin resin, which is produced by a two-step reaction and wherein a peak area corresponding resorcinol monomer is 3 to 9% and a peak area corresponding to resorcinol pentanuclear and higher nuclear bodies is 30 to 55% relative to the total peak area obtained by gel permeation chromatographic analysis of the resorcinol-formalin resin.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: November 16, 2010
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
  • Patent number: 7718752
    Abstract: A process for producing a resorcinol-formalin resin containing no salts, having a moderate flowability when transformed into an aqueous solution, and having a reduced content of resorcinol monomer and a reduced content of resorcinol-formalin resin of resorcinol pentanuclear or higher nuclear bodies, the whole steps including an one-stage reaction and liquid-liquid distribution being conducted in the same reactor, which comprises adding resorcinol, an inorganic salt, and an organic solvent having a solubility parameter of 7.0 to 12.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: May 18, 2010
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
  • Publication number: 20100114419
    Abstract: A brake control apparatus (20) includes: a hydraulic pressure source (30) that regulates pressure of hydraulic fluid in accordance with a brake operation input (24,25); a wheel cylinder (23) that applies braking force to a wheel (22) in response to a supply of the hydraulic fluid to the wheel cylinder 823); a hydraulic pressure booster mechanism (31) that amplifies the brake operation input by using the hydraulic pressure source (30), and outputs the amplified brake operation input; a hydraulic fluid supply path (63) through which the hydraulic fluid is supplied from the hydraulic pressure source (30) to the wheel cylinder (23); and a controller (70) that shuts off (valve 66) a flow of the hydraulic fluid-through the hydraulic fluid supply path (63), if a malfunction due to hydraulic fluid leakage is detected in the hydraulic fluid supply path (63) during a brake control mode in which the hydraulic fluid is supplied to the wheel cylinder (23) through the hydraulic fluid supply path (63).
    Type: Application
    Filed: February 5, 2008
    Publication date: May 6, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Hiroshi Nakaoka, Masaki Nanahara
  • Publication number: 20100016541
    Abstract: Recovery and reuse method of the specific raw materials (MEK, methanol and calcium chloride) used in the production of an MEK-modified resorcinol-formalin resin is provided. Furthermore, it is an object to stabilize quality by controlling a calcium chloride concentration in the MEK-modified resin to 100 ppm or less by partially improving the production steps. In a water solvent, resorcinol, a recovered calcium chloride aqueous solution, and a recovered MEK are added and stirred to form a two-phase system, and after adding a hydrochloric acid catalyst, formalin is added dropwise to the reaction system to allow a liquid-liquid heterogeneous reaction to proceed. It is allowed to stand to separate into two layers, and after removing an aqueous layer (0), water is added to an MEK layer (0) to sufficiently wash with water. It is allowed to stand to separate into two layers, and the aqueous layer (1) is removed.
    Type: Application
    Filed: September 27, 2007
    Publication date: January 21, 2010
    Applicant: Hodogaya Chemical Co., Ltd.
    Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Kaoru Abe
  • Publication number: 20090315391
    Abstract: In a brake control device and a brake control method, when a shift to a brake mode for backup involving separation of a supply path of working fluid is performed at the time of detection of an abnormality during braking, a differential pressure acting between an outlet opening and an inlet opening of an open-close valve which is provided between a hydraulic pressure source that is used during the backup brake mode and wheel cylinders and which needs to be opened during the backup brake mode is lessened prior to the separation of the supply path of working fluid so that the open-close valve is opened in accordance with a valve-opening command. Therefore, at the time of switch of the control mode, the confinement of wheel cylinder pressure is avoided.
    Type: Application
    Filed: October 4, 2007
    Publication date: December 24, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshito Tanaka, Hiroshi Nakaoka, Yasuji Mizutani, Eiji Nakamura
  • Publication number: 20090302675
    Abstract: A brake apparatus includes multiple wheel cylinders; multiple maintaining valves; a pressure-regulating control valve; and a control unit that controls the upstream pressure by switching a pressure-control mode between a pressure-regulating mode which is selected when a deviation of the upstream pressure from a target pressure is outside a setting range and in which the upstream pressure is brought to the target pressure using the pressure-regulating control valve and a pressure-maintaining mode that is selected when the deviation is within the setting range. The control unit opens the pressure-regulating control valve before the pressure-control mode is switched from the pressure-maintaining mode to the pressure-regulating mode.
    Type: Application
    Filed: September 3, 2008
    Publication date: December 10, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Nakaoka, Yoshito Tanaka
  • Patent number: 7630815
    Abstract: A brake control apparatus includes: at least one wheel cylinder that applies braking force to a vehicle wheel in response to supply of hydraulic fluid thereto; a manual hydraulic pressure source that pressurizes hydraulic fluid in accordance with brake operation by a driver; a cut valve which is arranged in a hydraulic fluid delivery path between the manual hydraulic pressure source and the wheel cylinder, and to which force is applied in such a direction that the cut valve is closed when the wheel cylinder is higher in hydraulic pressure than the manual hydraulic pressure source; and a controller that controls a discharge path, through which the hydraulic fluid is discharged from the wheel cylinder and which differs from the hydraulic fluid delivery path, so that discharge of the hydraulic fluid from the wheel cylinder through the discharge path starts in response to release of the brake.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: December 8, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Hiroshi Nakaoka
  • Patent number: 7588298
    Abstract: A non-consideration creating portion creates a non-consideration control command value based on a target value and an actual value of hydraulic pressure of a brake cylinder in a control-target brake system i. A consideration creating portion creates a consideration control command value based on the target value and the actual value of the hydraulic pressure in the control-target brake system i and a target value and an actual value of hydraulic pressure in a comparison-target brake system j. Then, one of the consideration control command value and the non-consideration command value is selected based on an absolute value of a difference in the target value between the control-target brake system i and the comparison-target brake system j, and a combination of a control mode in the control-target brake system i and a control mode in the comparison-target brake system j.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: September 15, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
  • Publication number: 20090167894
    Abstract: An image processing apparatus includes a change unit configured to change a driving state of an image sensor for capturing an image signal in response to an operation for changing the driving state of the image sensor, and a flicker correction unit configured to correct an image signal based on a flicker component detected from image signals of a frame captured a predetermined number of frames before the frame of the image signal to be corrected, wherein the flicker correction unit is configured to change the predetermined number when the driving state of the image sensor is changed by the change unit.
    Type: Application
    Filed: December 22, 2008
    Publication date: July 2, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Nakaoka, Kazuya Ino
  • Publication number: 20090096284
    Abstract: A non-consideration creating portion creates a non-consideration control command value based on a target value and an actual value of hydraulic pressure of a brake cylinder in a control-target brake system i. A consideration creating portion creates a consideration control command value based on the target value and the actual value of the hydraulic pressure in the control-target brake system i and a target value and an actual value of hydraulic pressure in a comparison-target brake system j. Then, one of the consideration control command value and the non-consideration command value is selected based on an absolute value of a difference in the target value between the control-target brake system i and the comparison-target brake system j, and a combination of a control mode in the control-target brake system i and a control mode in the comparison-target brake system j.
    Type: Application
    Filed: November 21, 2008
    Publication date: April 16, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
  • Patent number: 7513578
    Abstract: A non-consideration creating portion creates a non-consideration control command value based on a target value and an actual value of hydraulic pressure of a brake cylinder in a control-target brake system i. A consideration creating portion creates a consideration control command value based on the target value and the actual value of the hydraulic pressure in the control-target brake system i and a target value and an actual value of hydraulic pressure in a comparison-target brake system j. Then, one of the consideration control command value and the non-consideration command value is selected based on an absolute value of a difference in the target value between the control-target brake system i and the comparison-target brake system j, and a combination of a control mode in the control-target brake system i and a control mode in the comparison-target brake system j.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: April 7, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
  • Publication number: 20090018304
    Abstract: It is an object of the invention to provide a ketone-modified resorcinol-formalin resin, which has a moderate flowability when transformed into an aqueous solution and has both a reduced content of resorcinol monomer and a reduced content of resorcinol-formalin resin of resorcinol pentanuclear or higher nuclear bodies. The invention relates to a ketone-modified resorcinol-formalin resin, which is produced by a two-step reaction and wherein a peak area corresponding resorcinol monomer is 3 to 9% and a peak area corresponding to resorcinol pentanuclear and higher nuclear bodies is 30 to 55% relative to the total peak area obtained by gel permeation chromatographic analysis of the resorcinol-formalin resin.
    Type: Application
    Filed: January 25, 2006
    Publication date: January 15, 2009
    Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
  • Publication number: 20080255743
    Abstract: A brake control apparatus includes: at least one wheel cylinder that applies braking force to a vehicle wheel in response to supply of hydraulic fluid thereto; a manual hydraulic pressure source that pressurizes hydraulic fluid in accordance with brake operation by a driver; a cut valve which is arranged in a hydraulic fluid delivery path between the manual hydraulic pressure source and the wheel cylinder, and to which force is applied in such a direction that the cut valve is closed when the wheel cylinder is higher in hydraulic pressure than the manual hydraulic pressure source; and a controller that controls a discharge path, through which the hydraulic fluid is discharged from the wheel cylinder and which differs from the hydraulic fluid delivery path, so that discharge of the hydraulic fluid from the wheel cylinder through the discharge path starts in response to release of the brake.
    Type: Application
    Filed: April 9, 2008
    Publication date: October 16, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshito Tanaka, Hiroshi Nakaoka
  • Publication number: 20070225462
    Abstract: A process for producing a resorcinol-formalin resin containing no salts, having a moderate flowability when transformed into an aqueous solution, and having a reduced content of resorcinol monomer and a reduced content of resorcinol-formalin resin of resorcinol pentanuclear or higher nuclear bodies, the whole steps including an one-stage reaction and liquid-liquid distribution being conducted in the same reactor, which comprises adding resorcinol, an inorganic salt, and an organic solvent having a solubility parameter of 7.0 to 12.
    Type: Application
    Filed: October 6, 2004
    Publication date: September 27, 2007
    Applicant: Hodogaya Chemical Co., Ltd.
    Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
  • Publication number: 20060158033
    Abstract: A brake fluid pressure control apparatus of a vehicle includes a hydraulic brake in which the fluid pressure of a brake cylinder for a wheel is controlled so as to retard the rotation of the wheel, and a hydraulic actuator capable of controlling the fluid pressure of the brake cylinder. An actuator controller feedback-controls the hydraulic actuator so that the actual fluid pressure of the brake cylinder approaches a target fluid pressure determined in accordance with a braking requirement. The actuator controller determines a control gain used when determining a control command value to be sent to the hydraulic actuator, based on at least one of the temperature of a working fluid and a slipping state of the wheel.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 20, 2006
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayasu Ohkubo, Yoshito Tanaka, Hiroshi Nakaoka, Masaaki Komazawa
  • Publication number: 20060087175
    Abstract: A non-consideration creating portion creates a non-consideration control command value based on a target value and an actual value of hydraulic pressure of a brake cylinder in a control-target brake system i. A consideration creating portion creates a consideration control command value based on the target value and the actual value of the hydraulic pressure in the control-target brake system i and a target value and an actual value of hydraulic pressure in a comparison-target brake system j. Then, one of the consideration control command value and the non-consideration command value is selected based on an absolute value of a difference in the target value between the control-target brake system i and the comparison-target brake system j, and a combination of a control mode in the control-target brake system i and a control mode in the comparison-target brake system j.
    Type: Application
    Filed: October 18, 2005
    Publication date: April 27, 2006
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
  • Publication number: 20040132962
    Abstract: A method for producing a polyether-polyol having a narrow molecular weight distribution, which comprises carrying out selective fractional extraction of the low-molecular weight component from a polyether-polyol (A) having an average molecular weight of from 500 to 4500 represented by formula (1):
    Type: Application
    Filed: December 19, 2003
    Publication date: July 8, 2004
    Applicant: Hodogaya Chemical Co., Ltd.
    Inventors: Kazuaki Okabe, Hiroshi Nakaoka, Ikuhiko Kanehira