Patents by Inventor Eiji Itami
Eiji Itami 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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Patent number: 7183733Abstract: An opening and closing member control apparatus includes: an open-command receiving portion for receiving a first open command of a first open and close command inputting member and a second open command of a second open and close command inputting member, which performs a second open command input and a second close command input by a unique operation thereof, a close-command receiving portion for receiving a first close command of the first open and close command inputting member and a second close command of the second open and close command inputting member, and a controlling portion for performing an opening operation and a closing operation of an opening and closing member based on a condition of the opening and closing member, in response to the unique operation of the second open and close command inputting member.Type: GrantFiled: January 9, 2006Date of Patent: February 27, 2007Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami, Masahiko Ito, Masayuki Nomura
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Publication number: 20060164029Abstract: An opening and closing member control apparatus includes: an open-command receiving portion for receiving a first open command of a first open and close command inputting member and a second open command of a second open and close command inputting member, which performs a second open command input and a second close command input by a unique operation thereof, a close-command receiving portion for receiving a first close command of the first open and close command inputting member and a second close command of the second open and close command inputting member, and a controlling portion for performing an opening operation and a closing operation of an opening and closing member based on a condition of the opening and closing member, in response to the unique operation of the second open and close command inputting member.Type: ApplicationFiled: January 9, 2006Publication date: July 27, 2006Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami, Masahiko Ito, Masayuki Nomura
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Publication number: 20050275363Abstract: A control device of opening and closing member includes a driving means for driving, by means of a duty ratio control, an opening and closing member, a speed detecting means, and a controlling means for driving the opening and closing member based on a position of the opening and closing member, and stopping or reversing a movement of the opening and closing member. The controlling means includes a duty ratio determining means for providing a duty ratio to the driving means every predetermined number of periods so that a speed of the opening and closing member reaches the control speed, and increasing a duty ratio when a speed of the opening and closing member becomes below the target speed, and a duty ratio difference calculating means for calculating a difference between a present duty ratio and a duty ratio before a predetermined number of periods.Type: ApplicationFiled: June 13, 2005Publication date: December 15, 2005Inventors: Chiaki Honma, Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami
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Patent number: 6955389Abstract: A vehicle door controlling apparatus comprises a connection locking mechanism between a swinging door and a sliding door for locking the two doors by connecting them to each other. The swinging door is capable of opening or closing the front side of a vehicle opening and the second door is capable of opening or closing the rear side of the opening. The vehicle door controlling apparatus further comprises an operating switch which requests the opening of the sliding door, a rotary switch which detects a lock state between the doors, and a latch switch and a pole switch which detect a lock state at the rear side of the sliding door. When the controller detects a request for opening the sliding door, a release actuator releases the lock state, electric current is applied to a sliding motor, and electrical operation of the sliding door starts.Type: GrantFiled: April 22, 2004Date of Patent: October 18, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami
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Publication number: 20050179409Abstract: An opening and closing body control device includes an actuation device for actuating an opening and closing body which operates relative to a body, a speed detection device for detecting moving speed of the opening and closing body, and a control device for driving the actuation device based on detected results from the speed detection device. The control device conducts anti-pinch transaction when an object is pinched between the opening and closing body and the body. The control device includes a speed difference calculation device for calculating speed difference between latest speed and speed at predetermined time earlier, a speed difference memory device for memorizing predetermined number of the speed differences, an accumulation device for calculating accumulation value by accumulating predetermined number of speed differences, and a pinch detection device for conducting anti-pinch transaction by comparing the accumulation value and reference value for occurrence of pinch.Type: ApplicationFiled: February 17, 2005Publication date: August 18, 2005Inventors: Chiaki Honma, Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami
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Publication number: 20040262945Abstract: To provide a vehicle door controlling apparatus, which in the configuration of connecting doors, when one door operates electrically, the door connecting mechanism does not interfere with the door that is operating. A vehicle door controlling apparatus comprises a connection locking mechanism provided between a swinging door and a sliding door for locking the two doors by connecting both of them to each other. The swinging door is capable of opening or closing the front side of an opening formed in a vehicle and the second door is capable of opening or closing the rear side of the opening. The vehicle door controlling apparatus further comprises an operating switch which requests the opening of the sliding door, a rotary switch which detects a lock state between the doors, and a latch switch and a pole switch which detect a lock state at the rear side of the sliding door.Type: ApplicationFiled: April 22, 2004Publication date: December 30, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami
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Publication number: 20040267425Abstract: In order to provide a vehicle door controlling apparatus, which even when the vehicle starts to move while doors of the vehicle are in closed operation, performs insertion detection accurately without reducing the sensitivity of insertion detection. In the present invention, speed adjustment is performed by an applied voltage and a vehicle door is driven by a motor by voltage driving. The speed during the movement of the vehicle door is detected by Hall elements, and the door speed during the movement of the vehicle door is obtained from the detected signal. A controller having an insertion detection function controls the door speed to be the predetermined target door speed. In this case, the controller detects stoppage or driving of the vehicle, and when the state of the vehicle is in the driving state while the vehicle door is in closing operation, the voltage applied to the motor is increased compared to the stop state.Type: ApplicationFiled: April 21, 2004Publication date: December 30, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami
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Patent number: 6814394Abstract: A door is moved in an opening direction at a first speed until the door reaches a decelerating area. A moving speed of the door in the opening direction is decelerated from the first speed to a second speed being lower than the first speed while the door has been moved in the decelerating area. The movement of the door is stopped when the door is moved beyond the decelerating area, the door comes in contact with an obstacle, and the moving speed of the door becomes lower than a predetermined speed corresponding to an open position of the door by a predetermined threshold value.Type: GrantFiled: October 9, 2003Date of Patent: November 9, 2004Assignee: Aisin Seiki Kabushiki KaishaInventors: Hiroyuki Yogo, Hideharu Kato, Eiji Itami, Tomoaki Imaizumi, Tomonori Suzuki
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Publication number: 20040123525Abstract: A door control device includes a door, a manual operation detecting device, a speed detecting device, a driving device, a clutch disposed between the driving device and the door for allowing or prohibiting a driving force to be transmitted from the driving device to the door, and a control device for controlling the clutch based on an operation state of the door detected by the manual operation detecting device and the door speed detected by the speed detecting device. The control device controls to disengage the clutch when the manual operation is detected by the manual operation detecting device, and engage the clutch when the door speed is determined to be equal to or greater than a first value and then becomes equal to or smaller than a second value, which is smaller than the first value.Type: ApplicationFiled: October 8, 2003Publication date: July 1, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shintaro Suzuki, Tomoaki Imaizumi, Eiji Itami, Katsuhisa Yamada
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Patent number: 6739646Abstract: A vehicle is provided with an opening and closing device for opening and closing the vehicle door. A hook mechanism holds the door in an open condition, an electric releasing actuator is operatively connected to the hook mechanism to unhook the hook mechanism for permitting the door to be moved in the closing direction, an electric driving device is adapted to move the door in the closing direction, and an operation device generates a signal for directing that the door be moved in the closing direction. In addition, a control device controls the operation of the electric releasing actuator based upon the signal from the operation device, and controls the electric driving device to initiate driving operation of the electric driving device after initiation of the operation of the electric releasing actuator.Type: GrantFiled: March 4, 2002Date of Patent: May 25, 2004Assignee: Aisin Seiki Kabushiki KaishaInventors: Shintaro Suzuki, Eiji Itami, Ichiro Kondo, Hiroyuki Yogo
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Publication number: 20040070231Abstract: A door is moved in an opening direction at a first speed until the door reaches a decelerating area. A moving speed of the door in the opening direction is decelerated from the first speed to a second speed being lower than the first speed while the door has been moved in the decelerating area. The movement of the door is stopped when the door is moved beyond the decelerating area, the door comes in contact with an obstacle, and the moving speed of the door becomes lower than a predetermined speed corresponding to an open position of the door by a predetermined threshold value.Type: ApplicationFiled: October 9, 2003Publication date: April 15, 2004Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hiroyuki Yogo, Hideharu Kato, Eiji Itami, Tomoaki Imaizumi, Tomonori Suzuki
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Patent number: 6659539Abstract: A door is moved in an opening direction at a first speed until the door reaches a decelerating area. A moving speed of the door in the opening direction is decelerated from the first speed to a second speed being lower than the first speed while the door has been moved in the decelerating area. The movement of the door is stopped when the door is moved beyond the decelerating area, the door comes in contact with an obstacle, and the moving speed of the door becomes lower than a predetermined speed corresponding to an open position of the door by a predetermined threshold value.Type: GrantFiled: November 14, 2002Date of Patent: December 9, 2003Assignee: Aisin Seiki Kabushiki KaishaInventors: Hiroyuki Yogo, Hideharu Kato, Eiji Itami, Tomoaki Imaizumi, Tomonori Suzuki
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Publication number: 20030116995Abstract: A door is moved in an opening direction at a first speed until the door reaches a decelerating area. A moving speed of the door in the opening direction is decelerated from the first speed to a second speed being lower than the first speed while the door has been moved in the decelerating area. The movement of the door is stopped when the door is moved beyond the decelerating area, the door comes in contact with an obstacle, and the moving speed of the door becomes lower than a predetermined speed corresponding to an open position of the door by a predetermined threshold value.Type: ApplicationFiled: November 14, 2002Publication date: June 26, 2003Inventors: Hiroyuki Yogo, Hideharu Kato, Eiji Itami, Tomoaki Imaizumi, Tomonori Suzuki
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Patent number: 6580243Abstract: A door speed is detected at every predetermined detecting time, and a door position is calculated at a timing detected the door speed. A target speed according to the door position is obtained by a map. A microcomputer calculates a speed difference &Dgr;VD between the target speed and the actual or present speed, and an acceleration/deceleration value &Dgr;VC such as the speed difference between the door speed at the last detecting time and the present detecting time. A duty increasing value and the decreasing value of a PWM duty command value for adjusting a torque of the motor are set based on the speed difference &Dgr;VD and the acceleration/deceleration value &Dgr;VC, the motor is driven by the PWM duty command value based on the duty increasing value and the decreasing value.Type: GrantFiled: December 27, 2001Date of Patent: June 17, 2003Assignee: Aisin Seiki Kabushiki KaishaInventors: Eiji Itami, Ryoichi Fukumoto, Shintaro Suzuki, Hiroyuki Yogo, Masao Ohhashi
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Publication number: 20030025337Abstract: A vehicle is provided with an opening and closing device for opening and closing the vehicle door. A hook mechanism holds the door in an open condition, an electric releasing actuator is operatively connected to the hook mechanism to unhook the hook mechanism for permitting the door to be moved in the closing direction, an electric driving device is adapted to move the door in the closing direction, and an operation means generates a signal for directing that the door be moved in the closing direction. In addition, a control device controls the operation of the electric releasing actuator based upon the signal from the operation means, and controls the electric driving device to initiate driving operation of the electric driving device after initiation of the operation of the electric releasing actuator.Type: ApplicationFiled: March 4, 2002Publication date: February 6, 2003Inventors: Shintaro Suzuki, Eiji Itami, Ichiro Kondo, Hiroyuki Yogo
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Patent number: 6425206Abstract: A sliding door of a vehicle is braked in accordance with a position of the door. The braking is controlled such that the door speed is greater at the beginning of a door-opening or door-closing operation than at the end of the door-opening or door closing operation.Type: GrantFiled: November 30, 1999Date of Patent: July 30, 2002Assignee: Aisin Seiki Kabushiki KaishaInventors: Kohei Noda, Tomoaki Imaizumi, Eiji Itami, Ryoichi Fukumoto, Katsuhisa Yamada, Masao Ohhashi, Shintaro Suzuki
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Publication number: 20020093301Abstract: A door speed is detected at every predetermined detecting time, and a door position is calculated at a timing detected the door speed. A target speed according to the door position is obtained by a map. A microcomputer calculates a speed difference &Dgr;VD between the target speed and the actual or present speed, and an acceleration/deceleration value &Dgr;VC such as the speed difference between the door speed at the last detecting time and the present detecting time. A duty increasing value and the decreasing value of a PWM duty command value for adjusting a torque of the motor are set based on the speed difference &Dgr;VD and the acceleration/deceleration value &Dgr;VC, the motor is driven by the PWM duty command value based on the duty increasing value and the decreasing value.Type: ApplicationFiled: December 27, 2001Publication date: July 18, 2002Inventors: Eiji Itami, Ryoichi Fukumoto, Shintaro Suzuki, Hiroyuki Yogo, Masao Ohhashi
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Patent number: 6405485Abstract: A door control device is adapted to smoothly shift the mode of operation to the door closer operation at the time the door is being moved by pushing in the door closing condition, without requiring a large size motor and without the need for increasing the strength of the drive medium. The door control device includes a closer for shifting a slide door from the half door condition to the fully closed condition, and a clutch mechanism which is interposed in a power transmission system between the slide door and a motor for driving the slide door. If the slide door is electrically driven, a clutch of the clutch mechanism is rendered operational to move the slide door and the closer operation is started after the sliding operation.Type: GrantFiled: November 30, 1999Date of Patent: June 18, 2002Assignee: Aisin Seiki Kabushiki KaishaInventors: Eiji Itami, Ryoichi Fukumoto, Katsuhisa Yamada, Masao Ohhashi, Shintaro Suzuki
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Patent number: 6270148Abstract: A vehicular slide door apparatus includes a slide door which opens and closes an opening formed in the lateral side of the vehicle body 2. A brake device is provided at the lateral side of the vehicle body to apply a braking force to the slide door. The brake device is under the control of an electronic control device.Type: GrantFiled: November 30, 1999Date of Patent: August 7, 2001Assignee: Aisin Seiki Kabushiki KaishaInventors: Kohei Noda, Tomoaki Imaizumi, Eiji Itami, Ryoichi Fukumoto, Katsuhisa Yamada, Masao Ohhashi, Shintaro Suzuki
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Patent number: 6199322Abstract: At the time of changing over an open/close body from a manual operation to an automatic operation, a reliable clutch connection is established in a power transmission system between a drive source and the open/close body thus enhancing the operability of the open/close body. An open/close body automatic drive equipment comprises a clutch mechanism which connects or interrupts a power transmission system between a motor for driving a slide door which constitutes the open/close body and the slide door, wherein a clutch of a clutch mechanism is interrupted in a manual manipulation, and in an automatic drive, a clutch is connected to operate the slide door.Type: GrantFiled: November 30, 1999Date of Patent: March 13, 2001Assignee: Aisin Seiki Kabushiki KaishaInventors: Eiji Itami, Ryoichi Fukumoto, Katsuhisa Yamada, Masao Ohhashi, Shintaro Suzuki