Patents by Inventor Sadanori Watarai
Sadanori Watarai 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: 8423203Abstract: A smart key system according to the present invention controls operations of devices mounted in a vehicle based on wireless communication between a control device mounted in the vehicle and a portable electronic key, and the control device includes a transmission circuit configured to output a request signal a predetermined number of times at predetermined times within a predetermined period in order to confirm authentication communication between the control device and a communication unit of the portable electronic key, and a communication mode switching unit configured to switch an authentication communication interval or an authentication communication time within the predetermined period of the request signal output from the transmission circuit of the control device if the authentication communication is not performed for a predetermined amount of time.Type: GrantFiled: January 21, 2010Date of Patent: April 16, 2013Assignees: Honda Motor Co., Ltd., Honda Lock Mfg. Co., Ltd.Inventors: Yoshiaki Takeuchi, Takeshi Konno, Katsuhisa Yamada, Sadanori Watarai, Kazuyuki Kuriyama, Shuichi Ishibashi
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Publication number: 20100191393Abstract: A smart key system according to the present invention controls operations of devices mounted in a vehicle based on wireless communication between a control device mounted in the vehicle and a portable electronic key, and the control device includes a transmission circuit configured to output a request signal a predetermined number of times at predetermined times within a predetermined period in order to confirm authentication communication between the control device and a communication unit of the portable electronic key, and a communication mode switching unit configured to switch an authentication communication interval or an authentication communication time within the predetermined period of the request signal output from the transmission circuit of the control device if the authentication communication is not performed for a predetermined amount of time.Type: ApplicationFiled: January 21, 2010Publication date: July 29, 2010Applicants: Honda Motor Co., Ltd., Honda Lock Mfg. Co., Ltd.Inventors: Yoshiaki TAKEUCHI, Takeshi KONNO, Katsuhisa YAMADA, Sadanori WATARAI, Kazuyuki KURIYAMA, Shuichi ISHIBASHI
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Patent number: 7336151Abstract: The present invention provides an automatic locking/unlocking device which locks an opening/closing body when a normal response signal is received in response to a request signal sent to a predetermined zone around a vehicle body, comprising detector for detecting that the opening/closing body is closed, wherein the request signal is sent within the vehicle compartment in response to closing of the opening/closing body before the request signal is sent to the predetermined zone around the vehicle body and if the normal response signal is received in response to this request signal, transmission of the request signal to the predetermined zone around the vehicle body is prohibited, thereby suppressing consumption of power in the portable unit and ensuring a secure automatic locking.Type: GrantFiled: October 9, 2003Date of Patent: February 26, 2008Assignees: Honda Motor Co., Ltd., Hondalock Mfg. Co., Ltd.Inventors: Shinichi Ueda, Kentaro Yoshimura, Suguru Asakura, Shinichi Arie, Kenichi Sawada, Sadanori Watarai
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Patent number: 6998958Abstract: A remote control system for precisely identifying a distance from the vehicle to an entry key and favorably controlling a vehicle-mounted device such as a door corresponding to the distance. The system comprises a transmitter transmitting different types of response demand signals within a predetermined communication area outside the vehicle, a vehicle mounted receiver for receiving a response signal released from a portable transmitter/receiver in response to the reception of the response demand signal, a controller controlling the vehicle mounted device corresponding to the reception of the response signal by the vehicle mounted receiver. Locking and/or unlocking door(s) of the vehicle are controlled on the basis of whether or not the receiver receives the response signal to a response demand signal other than one having the largest communication area.Type: GrantFiled: June 25, 2004Date of Patent: February 14, 2006Assignees: Honda Giken Kogyo Kabushiki Kaisha, Hondalock Mfg., Co., Ltd.Inventors: Suguru Asakura, Akira Nagai, Kentaro Yoshimura, Munehisa Nozawa, Sadanori Watarai
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Patent number: 6831547Abstract: A vehicle equipment remote control system includes an electronic control unit that controls the transmission from vehicle exterior transmitters and a vehicle interior transmitter such that, when one of switchover intention detection means detects a vehicle user's intention to switch over a door between a locked state and an unlocked state, among the vehicle exterior transmitters, the vehicle exterior transmitter on the side where the switchover intention detection means that has detected the switchover intention is located transmits a request signal requesting reply data, and a prohibition signal is transmitted from at least one of the remaining vehicle exterior transmitter and the vehicle interior transmitter to prohibit the transmission of reply data from the portable transceiver, the prohibition signal being at a low output level that cannot be received by the portable transceiver that is present on the side where the switchover intention detection means that has detected the switchover intention is lType: GrantFiled: July 2, 2002Date of Patent: December 14, 2004Assignees: Kabushiki Kaisha Honda Lock, Honda Giken Kogyo Kabushiki KaishaInventors: Sadanori Watarai, Masahiko Sueyoshi, Tsutomu Kurita, Kazuya Karino, Suguru Asakura, Akira Kamikura, Kentaro Yoshimura
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Publication number: 20040227656Abstract: A remote control system for precisely identifying a distance from the vehicle to an entry key and favorably controlling a vehicle-mounted device such as a door corresponding to the distance. The system comprises a transmitter transmitting different types of response demand signals within a predetermined communication area outside the vehicle, a vehicle mounted receiver for receiving a response signal released from a portable transmitter/receiver in response to the reception of the response demand signal, a controller controlling the vehicle mounted device corresponding to the reception of the response signal by the vehicle mounted receiver. Locking and/or unlocking door(s) of the vehicle are controlled on the basis of whether or not the receiver receives the response signal to a response demand signal other than one having the largest communication area.Type: ApplicationFiled: June 25, 2004Publication date: November 18, 2004Applicants: HONDA GIKEN KOGYO KABUSHIKI KAISHA, HONDALOCK MFG. CO., LTD.Inventors: Suguru Asakura, Akira Nagai, Kentaro Yoshimura, Munehisa Nozawa, Sadanori Watarai
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Patent number: 6778065Abstract: A remote control system for precisely identifying a distance from the vehicle to an entry key and favorably controlling a vehicle-mounted device such as a door corresponding to the distance. The system comprises a transmitter transmitting different types of response demand signals within a predetermined communication area outside the vehicle, a vehicle mounted receiver for receiving a response signal released from a portable transmitter/receiver in response to the reception of the response demand signal, a controller controlling the vehicle mounted device corresponding to the reception of the response signal by the vehicle mounted receiver. Locking and/or unlocking door(s) of the vehicle are controlled on the basis of whether or not the receiver receives the response signal to a response demand signal other than one having the largest communication area.Type: GrantFiled: July 7, 2000Date of Patent: August 17, 2004Assignees: Honda Giken Kogyo Kabushiki Kaisha, HondaLock Mfg., Co., Ltd.Inventors: Suguru Asakura, Akira Nagai, Kentaro Yoshimura, Munehisa Nozawa, Sadanori Watarai
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Publication number: 20040142732Abstract: The present invention provides an automatic locking/unlocking device which locks an opening/closing body when a normal response signal is received in response to a request signal sent to a predetermined zone around a vehicle body, comprising detector for detecting that the opening/closing body is closed, wherein the request signal is sent within the vehicle compartment in response to closing of the opening/closing body before the request signal is sent to the predetermined zone around the vehicle body and if the normal response signal is received in response to this request signal, transmission of the request signal to the predetermined zone around the vehicle body is prohibited, thereby suppressing consumption of power in the portable unit and ensuring a secure automatic locking.Type: ApplicationFiled: October 9, 2003Publication date: July 22, 2004Inventors: Shinichi Ueda, Kentaro Yoshimura, Suguru Asakura, Shinichi Arie, Kenichi Sawada, Sadanori Watarai
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Publication number: 20030038732Abstract: A vehicle equipment remote control system includes an electronic control unit that controls the transmission from vehicle exterior transmitters and a vehicle interior transmitter such that, when one of switchover intention detection means detects a vehicle user's intention to switch over a door between a locked state and an unlocked state, among the vehicle exterior transmitters, the vehicle exterior transmitter on the side where the switchover intention detection means that has detected the switchover intention is located transmits a request signal requesting reply data, and a prohibition signal is transmitted from at least one of the remaining vehicle exterior transmitter and the vehicle interior transmitter to prohibit the transmission of reply data from the portable transceiver, the prohibition signal being at a low output level that cannot be received by the portable transceiver that is present on the side where the switchover intention detection means that has detected the switchover intention is locateType: ApplicationFiled: July 2, 2002Publication date: February 27, 2003Inventors: Sadanori Watarai, Masahiko Sueyoshi, Tsutomu Kurita, Kazuya Karino, Suguru Asakura, Akira Kamikura, Kentaro Yoshimura