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).
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Publication number: 20120068529Abstract: 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: ApplicationFiled: April 29, 2010Publication date: March 22, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Nakaoka, Tetsuya Miyazaki
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Publication number: 20110279708Abstract: 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: ApplicationFiled: April 19, 2011Publication date: November 17, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Hiroshi Nakaoka
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Patent number: 8053607Abstract: 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: GrantFiled: December 19, 2003Date of Patent: November 8, 2011Assignee: Hodogaya Chemical Co., Ltd.Inventors: Kazuaki Okabe, Hiroshi Nakaoka, Ikuhiko Kanehira
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Patent number: 7834124Abstract: 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: GrantFiled: January 25, 2006Date of Patent: November 16, 2010Assignee: Hodogaya Chemical Co., Ltd.Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
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Patent number: 7718752Abstract: 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: GrantFiled: October 6, 2004Date of Patent: May 18, 2010Assignee: Hodogaya Chemical Co., Ltd.Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
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Publication number: 20100114419Abstract: 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: ApplicationFiled: February 5, 2008Publication date: May 6, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Yoshito Tanaka, Hiroshi Nakaoka, Masaki Nanahara
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Publication number: 20100016541Abstract: 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: ApplicationFiled: September 27, 2007Publication date: January 21, 2010Applicant: Hodogaya Chemical Co., Ltd.Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Kaoru Abe
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Publication number: 20090315391Abstract: 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: ApplicationFiled: October 4, 2007Publication date: December 24, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshito Tanaka, Hiroshi Nakaoka, Yasuji Mizutani, Eiji Nakamura
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Publication number: 20090302675Abstract: 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: ApplicationFiled: September 3, 2008Publication date: December 10, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Nakaoka, Yoshito Tanaka
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Patent number: 7630815Abstract: 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: GrantFiled: April 9, 2008Date of Patent: December 8, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshito Tanaka, Hiroshi Nakaoka
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Patent number: 7588298Abstract: 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: GrantFiled: November 21, 2008Date of Patent: September 15, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
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Publication number: 20090167894Abstract: 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: ApplicationFiled: December 22, 2008Publication date: July 2, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Hiroshi Nakaoka, Kazuya Ino
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Publication number: 20090096284Abstract: 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: ApplicationFiled: November 21, 2008Publication date: April 16, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
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Patent number: 7513578Abstract: 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: GrantFiled: October 18, 2005Date of Patent: April 7, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
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Publication number: 20090018304Abstract: 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: ApplicationFiled: January 25, 2006Publication date: January 15, 2009Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
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Publication number: 20080255743Abstract: 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: ApplicationFiled: April 9, 2008Publication date: October 16, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshito Tanaka, Hiroshi Nakaoka
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Publication number: 20070225462Abstract: 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: ApplicationFiled: October 6, 2004Publication date: September 27, 2007Applicant: Hodogaya Chemical Co., Ltd.Inventors: Nobuo Kaifu, Hiroshi Nakaoka, Hisatoshi Koinuma
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Publication number: 20060158033Abstract: 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: ApplicationFiled: December 29, 2005Publication date: July 20, 2006Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masayasu Ohkubo, Yoshito Tanaka, Hiroshi Nakaoka, Masaaki Komazawa
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Publication number: 20060087175Abstract: 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: ApplicationFiled: October 18, 2005Publication date: April 27, 2006Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Nakaoka, Yoshito Tanaka, Masayasu Ohkubo, Masaaki Komazawa
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Publication number: 20040132962Abstract: 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: ApplicationFiled: December 19, 2003Publication date: July 8, 2004Applicant: Hodogaya Chemical Co., Ltd.Inventors: Kazuaki Okabe, Hiroshi Nakaoka, Ikuhiko Kanehira