Patents by Inventor Kiyokazu Ohtaki

Kiyokazu Ohtaki 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).

  • Patent number: 7760070
    Abstract: A vehicle security device for providing a vehicle with improved security. The security device includes a camera for generating a facial image of a vehicle occupant. A security controller, which is connected to the camera, restricts driving of the vehicle. If the facial image includes the necessary facial features, the security controller enables the driving of the vehicle.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: July 20, 2010
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Yoshihisa Hirano, Jun Tanaka, Masaki Hayashi
  • Patent number: 7545255
    Abstract: An electronic key system for a vehicle that prevents private information from being available to a third person. The electronic key system includes a terminal, electronic keys, and a device having comparing and control components. Each electronic key stores a distinct identification code and transmits the identification code to the vehicle. At least one of the identification codes is a restriction code for restricting the usage of the terminal. The comparing component is arranged in the vehicle and stores verification codes associated with the identification codes. The comparing component retrieves the identification code of one of the electronic keys and compares the retrieved identification code with an associated one of the verification codes. The control component restricts activation of the terminal when the retrieved identification code is the restriction code.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: June 9, 2009
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Yoshiyuki Mizuno
  • Patent number: 7505279
    Abstract: A portable device that resists deformation caused by an external force while remaining water resistant. The portable device includes a case, which is made of a flexible material. A battery compartment is formed in the case. A separable portion is arranged in the part of the case corresponding to the battery compartment. Part of the case is bent to open the separable portion and expose the battery compartment from the case.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: March 17, 2009
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Seiji Ishigaki, Daisuke Kawamura, Masayuki Kawamura
  • Patent number: 7432796
    Abstract: A security control system for improving security. The security control system includes a portable device, having a communication function and a portable device ID code. A security controller includes a memory for recording a controller ID code. The security controller communicates with the portable device and determines whether the portable device ID code matches the controller ID code. In accordance with the determination, the security controller selectively deactivates the security functions of a door lock driver and an engine controller. The security controller records and registers the portable device ID code as the controller ID code in the memory and transmits a registration signal containing the portable device ID code. A portable device management apparatus receives the registration signal from the security controller and manages the portable device based on the registration signal.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: October 7, 2008
    Assignees: Kabushiki Kaisha Tokai Rika Denki Seisakusho, Toyota Jidosha Kabushiki Kaisha
    Inventors: Daisuke Kawamura, Kiyokazu Ohtaki, Keiji Yamamoto, Koichi Masamura, Takao Ozawa, Yoshihide Nakane
  • Publication number: 20080041128
    Abstract: An activation restricting apparatus for an engine starting system that may be produced with a compact size. The apparatus includes an operating mechanism, an actuator, and a control unit. The operating mechanism starts and stops the engine and has a plurality of positions including a LOCK position. The operating mechanism includes a first stopper prohibiting movement of the operating mechanism from the LOCK position and a second stopper prohibiting movement of the operating mechanism to the LOCK position. The control unit enables the engine to be started when the operating mechanism is in the LOCK position and a first ID code sent from a portable device matches a second ID code. The control unit enables the operating mechanism to be moved to the LOCK position when the operating mechanism is not in the LOCK position and the vehicle is not moving.
    Type: Application
    Filed: June 22, 2007
    Publication date: February 21, 2008
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Kiyokazu Ohtaki, Shoichi Harada, Masanari Okuno, Osamu Shoji
  • Patent number: 7327227
    Abstract: A vehicle security device for improving the security level of a vehicle. The vehicle security device is connected to an engine and communicates with a portable device. A smart ECU performs a first coded communication to establish mutual authentication with the portable device. An ID code box is connected to the smart ECU, has a first code and a second code, and does not communicate with the portable device. The ID code box performs a second coded communication using the first code to establish a second mutual authentication with the smart ECU. An engine ECU performs a third coded communication using the second code to establish a third mutual authentication with the ID code box. The engine ECU enables the engine to be started when every one of the first, second, and third mutual authentications are established.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: February 5, 2008
    Assignees: Kabushiki Kaisha Tokai Rika Denki Seisakusho, Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Kiyokazu Ohtaki, Toru Maeda, Hisashi Kato, Akiyoshi Osumi, Takeshi Kumazaki, Ifushi Shimonomoto, Toshio Shimomura, Yoshinori Fukuoka, Koichi Masamura
  • Patent number: 7302817
    Abstract: An activation restricting apparatus for an engine starting system that may be produced with a compact size. The apparatus includes an operating mechanism, an actuator, and a control unit. The operating mechanism starts and stops the engine and has a plurality of positions including a LOCK position. The operating mechanism includes a first stopper prohibiting movement of the operating mechanism from the LOCK position and a second stopper prohibiting movement of the operating mechanism to the LOCK position. The control unit enables the engine to be started when the operating mechanism is in the LOCK position and a first ID code sent from a portable device matches a second ID code. The control unit enables the operating mechanism to be moved to the LOCK position when the operating mechanism is not in the LOCK position and the vehicle is not moving.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: December 4, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Shoichi Harada, Masanari Okuno, Osamu Shoji
  • Patent number: 7295430
    Abstract: A thin portable device having high strength. The portable device includes a portable device body for accommodating an electronic component used for communication. The portable device body includes an upper case and a lower case, each having a cavity. A holding frame holds peripheral portions of the upper case and the lower case so that the upper case and the lower case are connected to each other with the cavities opposed to each other.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: November 13, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Seiji Ishigaki
  • Patent number: 7290416
    Abstract: An engine switch device with improved convenience. The device starts and stops an engine. The device includes a key cylinder, which has a key slot, and a push button switch, which is pushed to stop or start the engine. The key slot is located in the center of the push button in a preferred embodiment.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: November 6, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Seiji Ishigaki, Tomoyuki Funayama, Yoshinori Fukuoka
  • Patent number: 7227447
    Abstract: A switch device is provided that ensures formation of a communicable area by a coil antenna. The switch device includes an ignition switch operated by an operator for driving an engine starter, a decorative cap arranged to surround the ignition switch and having an ornamental surface, and the coil antenna arranged adjacent to the decorative cap for transmitting a transponder-driving radio wave. The decorative cap includes a transmittable area that can transmit the transponder-driving radio wave therethrough. The transmittable area is formed in a part of the decorative cap excluding the ornamental surface.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: June 5, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Takayuki Hiramitsu, Daisuke Kawamura, Tomoyuki Funayama, Koji Iwamoto
  • Patent number: 7199710
    Abstract: A controller enabling switching between a smart function and an immobilizer function without using a key cylinder or a slot. The controller includes a verification ECU for transmitting a request signal to a first area and transmitting a transponder drive radio wave to a second area. The portable device transmits an ID code signal in response to the request signal or the transponder drive radio wave. The verification ECU enables the starting of an engine when the ID code transmitted from the portable device matches an ID code of the controller. The verification ECU transmits the drive radio wave when a driver operates a switch in a state in which the starting of the engine is not enabled after the request signal is transmitted.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: April 3, 2007
    Assignees: Kabushiki Kaisha Tokai Rika Denki, Seisakusho & Toyota Jidosha Kabushiki
    Inventors: Takayuki Hiramitsu, Masayuki Kawamura, Kiyokazu Ohtaki, Yoshihito Mizuno, Hiroyasu Hasegawa, Daisuke Kawamura, Toshikazu Mizutani, Tomoyuki Funayama, Teruya Tomiyasu, Koji Iwamoto, Noriyasu Onishi
  • Patent number: 7193334
    Abstract: A controller for an electronic key system including a portable device and an engine. When the ID code of the portable device cannot be authenticated, the controller instructs the driver of the necessary operations. When a transmitter circuit is transmitting a request signal but a receiver circuit does not receive a signal including an ID code matching the ID code stored in a memory, an authentication ECU authenticates a transponder code of the portable device with a stored transponder code to enable the starting of the engine. The authentication ECU displays the necessary operations for performing transponder code authentication.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: March 20, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Takayuki Hiramitsu, Kiyokazu Ohtaki, Tomohiro Ohmura, Toshiki Akita, Teruya Tomiyasu, Noriyasu Onishi, Manabu Mizutani
  • Patent number: 7187266
    Abstract: A switch device that occupies less space and that can be manufactured at a lower cost. The switch device includes an operation switch operated by an operator for driving an actuator and a coil antenna used to output a transponder-driving radio wave. The coil antenna is arranged adjacent to the operation switch.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: March 6, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Hiroyasu Hasegawa, Kiyokazu Ohtaki, Tomoyuki Funayama, Koji Iwamoto
  • Patent number: 7156772
    Abstract: A switch device that improves reliability in starting an engine is provided. The switch device includes a push button, a magnetic sensor, and a power supply ECU. The push button is pressed by a driver to start the engine. The magnetic sensor detects that the push button has been pressed, in a non-contact manner. The power supply ECU is connected to the magnetic sensor and supplies power to the magnetic sensor to enable the magnetic sensor to detect that the push button has been pressed.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: January 2, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Kiyokazu Ohtaki, Yukio Iwasaki, Tomoyuki Funayama, Koji Iwamoto
  • Publication number: 20060238300
    Abstract: A vehicle security device for providing a vehicle with improved security. The security device includes a camera for generating a facial image of a vehicle occupant. A security controller, which is connected to the camera, restricts driving of the vehicle. If the facial image includes the necessary facial features, the security controller enables the driving of the vehicle.
    Type: Application
    Filed: April 24, 2006
    Publication date: October 26, 2006
    Inventors: Kiyokazu Ohtaki, Yoshihisa Hirano, Jun Tanaka, Masaki Hayashi
  • Publication number: 20060152348
    Abstract: A vehicle security device for improving the security level of a vehicle. The vehicle security device is connected to an engine and communicates with a portable device. A smart ECU performs a first coded communication to establish mutual authentication with the portable device. An ID code box is connected to the smart ECU, has a first code and a second code, and does not communicate with the portable device. The ID code box performs a second coded communication using the first code to establish a second mutual authentication with the smart ECU. An engine ECU performs a third coded communication using the second code to establish a third mutual authentication with the ID code box. The engine ECU enables the engine to be started when every one of the first, second, and third mutual authentications are established.
    Type: Application
    Filed: November 4, 2004
    Publication date: July 13, 2006
    Inventors: Kiyokazu Ohtaki, Toru Maeda, Hisashi Kato, Akiyoshi Osumi, Takeshi Kumazaki, Ifushi Shimonomoto, Toshio Shimomura, Yoshinori Fukuoka, Koichi Masamura
  • Publication number: 20050258686
    Abstract: A controller for an electronic key system including a portable device and an engine. When the ID code of the portable device cannot be authenticated, the controller instructs the driver of the necessary operations. When a transmitter circuit is transmitting a request signal but a receiver circuit does not receive a signal including an ID code matching the ID code stored in a memory, an authentication ECU authenticates a transponder code of the portable device with a stored transponder code to enable the starting of the engine. The authentication ECU displays the necessary operations for performing transponder code authentication.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 24, 2005
    Inventors: Takayuki Hiramitsu, Kiyokazu Ohtaki, Tomohiro Ohmura, Toshiki Akita, Teruya Tomiyasu, Noriyasu Onishi, Manabu Mizutani
  • Publication number: 20050179518
    Abstract: A security control system for improving security. The security control system includes a portable device, having a communication function and a portable device ID code. A security controller includes a memory for recording a controller ID code. The security controller communicates with the portable device and determines whether the portable device ID code matches the controller ID code. In accordance with the determination, the security controller selectively deactivates the security functions of a door lock driver and an engine controller. The security controller records and registers the portable device ID code as the controller ID code in the memory and transmits a registration signal containing the portable device ID code. A portable device management apparatus receives the registration signal from the security controller and manages the portable device based on the registration signal.
    Type: Application
    Filed: February 16, 2005
    Publication date: August 18, 2005
    Inventors: Daisuke Kawamura, Kiyokazu Ohtaki, Keiji Yamamoto, Koichi Masamura, Takao Ozawa, Yoshihide Nakane
  • Publication number: 20050020212
    Abstract: A controller enabling switching between a smart function and an immobilizer function without using a key cylinder or a slot. The controller includes a verification ECU for transmitting a request signal to a first area and transmitting a transponder drive radio wave to a second area. The portable device transmits an ID code signal in response to the request signal or the transponder drive radio wave. The verification ECU enables the starting of an engine when the ID code transmitted from the portable device matches an ID code of the controller. The verification ECU transmits the drive radio wave when a driver operates a switch in a state in which the starting of the engine is not enabled after the request signal is transmitted.
    Type: Application
    Filed: June 2, 2004
    Publication date: January 27, 2005
    Inventors: Takayuki Hiramitsu, Masayuki Kawamura, Kiyokazu Ohtaki, Yoshihito Mizuno, Hiroyasu Hasegawa, Daisuke Kawamura, Toshikazu Mizutani, Tomoyuki Funayama, Teruya Tomiyasu, Koji Iwamoto, Noriyasu Onishi
  • Publication number: 20040212252
    Abstract: A switch device that improves reliability in starting an engine is provided. The switch device includes a push button, a magnetic sensor, and a power supply ECU. The push button is pressed by a driver to start the engine. The magnetic sensor detects that the push button has been pressed, in a non-contact manner. The power supply ECU is connected to the magnetic sensor and supplies power to the magnetic sensor to enable the magnetic sensor to detect that the push button has been pressed.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 28, 2004
    Inventors: Kiyokazu Ohtaki, Yukio Iwasaki, Tomoyuki Funayama, Koji Iwamoto