Patents by Inventor Takafumi Kato
Takafumi Kato 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: 20130011481Abstract: The present invention provides pyrroloquinolinyl-pyrrole-2,5-dione formulations and methods of treating a cell proliferative disorder, such as a cancer, by administering to a subject in need thereof a therapeutically effective amount of the formulations containing pyrroloquinolinyl-pyrrole-2,5-dione compounds.Type: ApplicationFiled: July 6, 2012Publication date: January 10, 2013Applicant: ArQule, Inc.Inventors: Hiroshi Yamakose, Takafumi Kato
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Patent number: 8311704Abstract: A control apparatus of a variable damping force damper used to suspend a vehicle body of a vehicle is configured to set a target control quantity of the variable damping force damper based on a plurality of dynamic state quantities of the vehicle, wherein the plurality of dynamic state quantities include a vertical dynamic state quantity of the vehicle.Type: GrantFiled: March 19, 2008Date of Patent: November 13, 2012Assignee: Honda Motor Co., Ltd.Inventors: Takafumi Kato, Toshimitsu Kaji, Masaki Izawa
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Patent number: 8165749Abstract: A control system for an adjustable damping force damper of a suspension apparatus of a vehicle, includes a lateral acceleration detecting unit detecting a lateral acceleration of the vehicle at a gravity point thereof, a yaw rate detecting unit detecting a yaw rate of the vehicle and a control unit controlling a damping force of the damper. The control unit calculates a first target damping force based on an output of the lateral acceleration detecting unit, calculates a second target damping force based on a lateral acceleration at an axel position which is estimated by an output of the yaw rate detecting unit, compares an absolute value of the first target damping force with that of the second target damping force and sets a target controlling value of the damping force in accordance with the first or second target damping force which has a larger absolute value.Type: GrantFiled: March 29, 2006Date of Patent: April 24, 2012Assignee: Honda Motor Co., LtdInventors: Masaki Izawa, Takafumi Kato
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Patent number: 8090501Abstract: A control device for controlling a variable damper of a wheel suspension system includes a first sensor detecting a first dynamic state variable of a vehicle body, a damping force base value determining unit determining a target damping force base value, a second sensor detecting a second dynamic state variable of the vehicle body; a correction value determining unit determining a damping force correction value, and a target damping force determining unit determining a target damping force. When the differential value of the lateral acceleration is relatively high (or the target damping force is high), a drive current to the variable damper is increased. The same is true when the vehicle is undergoing a pitching movement. The target damping force may be obtained by subtracting the damping force correction value from the target damping force base value.Type: GrantFiled: October 21, 2008Date of Patent: January 3, 2012Assignee: Honda Motor Co., Ltd.Inventors: Takashi Furuichi, Takafumi Kato, Toshimitsu Kaji
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Patent number: 8086371Abstract: In a control device for controlling a variable element of a wheel suspension system, the variable suspension element associated with one of the wheels is controlled at least according to an output of a sensor associated with a different one of the wheels. The output of the sensor may include a sprung mass speed of a vehicle part associated with each wheel. The variable suspension element may include a variable damping force damper or a variable spring constant spring. Thereby, an undesired response of a vehicle body can be avoided even when a vehicle is subjected to an uneven distribution of wheel loads such as when the vehicle is traveling over a slanted road surface or making a turn.Type: GrantFiled: March 25, 2009Date of Patent: December 27, 2011Assignee: Honda Motor Co., Ltd.Inventors: Takashi Furuichi, Daijirou Endou, Takafumi Kato, Toshimitsu Kaji
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Patent number: 7885740Abstract: Upon searching control parameter used to adjust damping force of a damper from a map in accordance with damper speed and target damping force decided based on moving condition of the vehicle, the map sets the control parameter, which are relatively higher than the actual damping force characteristics, as map data in the area where the damper speed is less than a predetermined value, the area where the noise has the great influence on the sensor outputs. Therefore, it can be prevented that the control parameter of the damping force is varied largely or varied in a short period by the influence of noise, and the driving stability control of the vehicle can be executed exactly and the noise caused by switching the damping force of the damper can be reduced.Type: GrantFiled: September 29, 2009Date of Patent: February 8, 2011Assignee: Honda Motor Co., Ltd.Inventors: Masaki Izawa, Takafumi Kato, Shigenobu Sekiya
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Patent number: 7713464Abstract: The invention provides a multilayer container that comprises a polyglycolic acid layer and a thermoplastic polyester resin layer and is much improved in terms of gas barrier properties, heat resistance, moldability, transparency and durability, and its production process. Polyglycolic acid is used as a gas barrier resin. At the body and bottom, the thermoplastic polyester resin forms an inner and an outer layer, and an intermediate layer comprising at least one polyglycolic acid layer is embedded in the thermoplastic polyester resin layer. The opening end of the container is formed of a thermoplastic polyester resin layer alone, and the body is biaxially oriented. The multilayer container has heat resistance enough to stand up to hot-filling at 93° C. for 20 seconds.Type: GrantFiled: November 1, 2002Date of Patent: May 11, 2010Assignee: Kureha CorporationInventors: Junji Nakajima, Takafumi Kato, Yoshihiro Matsukura
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Publication number: 20100017057Abstract: Upon searching control parameter used to adjust damping force of a damper from a map in accordance with damper speed and target damping force decided based on moving condition of the vehicle, the map sets the control parameter, which are relatively higher than the actual damping force characteristics, as map data in the area where the damper speed is less than a predetermined value, the area where the noise has the great influence on the sensor outputs. Therefore, it can be prevented that the control parameter of the damping force is varied largely or varied in a short period by the influence of noise, and the driving stability control of the vehicle can be executed exactly and the noise caused by switching the damping force of the damper can be reduced.Type: ApplicationFiled: September 29, 2009Publication date: January 21, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Masaki Izawa, Takafumi Kato, Shigenobu Sekiya
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Publication number: 20090301959Abstract: The object of the invention is to provide: a hollow fiber bundle, a method of manufacturing the hollow fiber bundle, a cylindrical module of hollow fiber membrane, and an immersion type module of hollow fiber membrane wherein the hollow fibers are easy to apply scrubbing while maintaining specified intervals among the hollow fibers.Type: ApplicationFiled: September 15, 2006Publication date: December 10, 2009Applicant: KUREHA CORPORATIONInventors: Yasuhiro Tada, Yasushi Ebihara, Masayuki Hino, Takafumi Kato, Toshiya Mizuno
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Patent number: 7617032Abstract: Upon searching control parameter used to adjust damping force of a damper from a map in accordance with damper speed and target damping force decided based on moving condition of the vehicle, the map sets the control parameter, which are relatively higher than the actual damping force characteristics, as map data in the area where the damper speed is less than a predetermined value, the area where the noise has the great influence on the sensor outputs. Therefore, it can be prevented that the control parameter of the damping force is varied largely or varied in a short period by the influence of noise, and the driving stability control of the vehicle can be executed exactly and the noise caused by switching the damping force of the damper can be reduced.Type: GrantFiled: March 29, 2006Date of Patent: November 10, 2009Assignee: Honda Motor Co. Ltd.Inventors: Masaki Izawa, Takafumi Kato, Shigenobu Sekiya
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Publication number: 20090248247Abstract: In a control device for controlling a variable element of a wheel suspension system, the variable suspension element associated with one of the wheels is controlled at least according to an output of a sensor associated with a different one of the wheels. The output of the sensor may include a sprung mass speed of a vehicle part associated with each wheel. The variable suspension element may include a variable damping force damper or a variable spring constant spring. Thereby, an undesired response of a vehicle body can be avoided even when a vehicle is subjected to an uneven distribution of wheel loads such as when the vehicle is traveling over a slanted road surface or making a turn.Type: ApplicationFiled: March 25, 2009Publication date: October 1, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Takashi Furuichi, Takafumi Kato, Toshimitsu Kaji, Daijirou Endou
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Patent number: 7593797Abstract: A control system for a adjustable damping force damper includes a damper and a spring provided on a suspension apparatus of a vehicle, a sprung speed sensor for detecting speed of an upper member of the spring, the sprung speed is generated when the vehicle gets over steps on a road surface and a control unit for setting a gain so as to determine an damping force of the damper based on a product of the sprung speed and the gain. When an absolute value of the sprung speed exceeds a predetermined value, the control unit changes the gain in response to a positive sign or a negative sign of the sprung speed.Type: GrantFiled: March 29, 2006Date of Patent: September 22, 2009Assignee: Honda Motor Co., Ltd.Inventors: Masaki Izawa, Takafumi Kato
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Publication number: 20090112402Abstract: A control device for controlling a variable damper of a wheel suspension system includes a first sensor detecting a first dynamic state variable of a vehicle body, a damping force base value determining unit determining a target damping force base value, a second sensor detecting a second dynamic state variable of the vehicle body; a correction value determining unit determining a damping force correction value, and a target damping force determining unit determining a target damping force. When the differential value of the lateral acceleration is relatively high (or the target damping force is high), a drive current to the variable damper is increased. The same is true when the vehicle is undergoing a pitching movement. The target damping force may be obtained by subtracting the damping force correction value from the target damping force base value.Type: ApplicationFiled: October 21, 2008Publication date: April 30, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Takashi Furuichi, Takafumi Kato, Toshimitsu Kaji
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Publication number: 20080234896Abstract: A control apparatus of a variable damping force damper used to suspend a vehicle body of a vehicle is configured to set a target control quantity of the variable damping force damper based on a plurality of dynamic state quantities of the vehicle, wherein the plurality of dynamic state quantities include a vertical dynamic state quantity of the vehicle.Type: ApplicationFiled: March 19, 2008Publication date: September 25, 2008Applicant: HONDA MOTOR CO., LTD.Inventors: Takafumi Kato, Toshimitsu Kaji, Masaki Izawa
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Patent number: 7406371Abstract: In a suspension control system, accelerations detected by acceleration sensors are differentiated by a differentiator to calculate acceleration derivative values. Based on these values, a target electrical current calculating section calculates a target electrical current that is supplied to an actuator which controls a damping force of a damper. Before a rolling or pitch angle occurs in the vehicle, the change of the rolling or pitch angle is predicted to control the damping force of the damper, thereby improving the response of rolling angle and pitch angle control to achieve, simultaneously, an accurate posture control and a satisfactory riding comfort. Because the target electrical current calculating section corrects the target electrical current of the actuator based on a damper speed obtained by differentiating a damper displacement, even when a large input is applied to the damper due to an unevenness of the road surface, a proper posture control is performed.Type: GrantFiled: August 5, 2005Date of Patent: July 29, 2008Assignee: Honda Motor Co., Ltd.Inventors: Masaki Izawa, Takafumi Kato, Shigenobu Sekiya, Yoshio Onoe, Tsukasa Fukuzato
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Patent number: 7340334Abstract: A control device of a variable damping force damper for controlling a damping force of a damper used in a vehicle suspension system comprises: relative displacement detection means for detecting a value corresponding to a relative displacement between a vehicle body and a wheel in a vertical direction; relative speed detection means for detecting a value corresponding to a relative speed between the vehicle body and the wheel in the vertical direction; multiplying means for multiplying the value corresponding to the relative displacement and the value corresponding to the relative speed; and means for setting a damping force control target value of the damper based on the output from the multiplying means.Type: GrantFiled: May 3, 2007Date of Patent: March 4, 2008Assignee: Honda Motor Co., Ltd.Inventors: Masaki Izawa, Takafumi Kato, Takashi Furuichi, Minoru Higuchi
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Publication number: 20080009992Abstract: A control device of a variable damping force damper for controlling a damping force of a damper used in a vehicle suspension system comprises: relative displacement detection means for detecting a value corresponding to a relative displacement between a vehicle body and a wheel in a vertical direction; relative speed detection means for detecting a value corresponding to a relative speed between the vehicle body and the wheel in the vertical direction; multiplying means for multiplying the value corresponding to the relative displacement and the value corresponding to the relative speed; and means for setting a damping force control target value of the damper based on the output from the multiplying means.Type: ApplicationFiled: May 3, 2007Publication date: January 10, 2008Inventors: Masaki Izawa, Takafumi Kato, Takashi Furuichi, Minoru Higuchi
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Publication number: 20060224285Abstract: Upon searching control parameter used to adjust damping force of a damper from a map in accordance with damper speed and target damping force decided based on moving condition of the vehicle, the map sets the control parameter, which are relatively higher than the actual damping force characteristics, as map data in the area where the damper speed is less than a predetermined value, the area where the noise has the great influence on the sensor outputs. Therefore, it can be prevented that the control parameter of the damping force is varied largely or varied in a short period by the influence of noise, and the driving stability control of the vehicle can be executed exactly and the noise caused by switching the damping force of the damper can be reduced.Type: ApplicationFiled: March 29, 2006Publication date: October 5, 2006Inventors: Masaki Izawa, Takafumi Kato, Shigenobu Sekiya
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Publication number: 20060224286Abstract: A control system for a adjustable damping force damper includes a damper and a spring provided on a suspension apparatus of a vehicle, a sprung speed sensor for detecting speed of an upper member of the spring, the sprung speed is generated when the vehicle gets over steps on a road surface and a control unit for setting a gain so as to determine an damping force of the damper based on a product of the sprung speed and the gain. When an absolute value of the sprung speed exceeds a predetermined value, the control unit changes the gain in response to a positive sign or a negative sign of the sprung speed.Type: ApplicationFiled: March 29, 2006Publication date: October 5, 2006Inventors: Masaki Izawa, Takafumi Kato
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Publication number: 20060224287Abstract: A control system for an adjustable damping force damper of a suspension apparatus of a vehicle, includes a lateral acceleration detecting unit detecting a lateral acceleration of the vehicle at a gravity point thereof, a yaw rate detecting unit detecting a yaw rate of the vehicle and a control unit controlling a damping force of the damper. The control unit calculates a first target damping force based on an output of the lateral acceleration detecting unit, calculates a second target damping force based on a lateral acceleration at an axel position which is estimated by an output of the yaw rate detecting unit, compares an absolute value of the first target damping force with that of the second target damping force and sets a target controlling value of the damping force in accordance with the first or second target damping force which has a larger absolute value.Type: ApplicationFiled: March 29, 2006Publication date: October 5, 2006Inventors: Masaki Izawa, Takafumi Kato