Patents by Inventor Tetsuya Egawa
Tetsuya Egawa 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: 20180086271Abstract: A vehicular visual recognition device, including: an imaging section that, from outside a vehicle, captures plural vehicle exterior capture images in which portions of the images overlap with each other; and a controller that effects control such that an image of a vehicle body portion of a vehicle cabin image set to a predetermined transmissive state overlaps with at least part of an overlapping portion of the plural vehicle exterior capture images, and such that the plural vehicle exterior capture images and the vehicle cabin image are combined and displayed at a display section.Type: ApplicationFiled: September 18, 2017Publication date: March 29, 2018Inventors: Masanori KOSUGI, Takashi NAGAO, Tetsuya EGAWA, Takuya HAYASHI, Naofumi KATO
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Publication number: 20180056870Abstract: There is provided a viewing device for a vehicle, including: an imaging portion that captures an image of a rear of a vehicle from a vehicle exterior; and a display portion that carries out image processing that combines a first captured image that has been captured by the imaging portion and a second captured image that shows a vehicle cabin interior in which a vehicle rear including the vehicle cabin interior is captured from the vehicle cabin interior, such that a region of a rear side window glass becomes longer than an apparent width of the rear side window glass that is actually seen from a position of capturing the second captured image, and displays the images.Type: ApplicationFiled: August 23, 2017Publication date: March 1, 2018Inventors: Masanori KOSUGI, Tetsuya EGAWA, Takuya HAYASHI, Takashi NAGAO, Naofumi KATO
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Patent number: 9714004Abstract: An electronic key registration system includes an electronic key and a communication master. The electronic key transmits a registration code. The communication master receives the registration code from the electronic key, obtains key information using the registration code, and registers the key information. The registration code is set in accordance with the communication master to which the electronic key is registered. The communication master includes a level determination unit, which determines a key registration security level when the electronic key is registered to the communication master, and a registration execution unit, which obtains the key information using the registration code based on the determined key registration security level and registers the key information to the communication master.Type: GrantFiled: January 28, 2016Date of Patent: July 25, 2017Assignees: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daisuke Kawamura, Masahiro Arakawa, Masaki Hayashi, Hiroaki Iwashita, Tetsuya Egawa, Kazunori Arakawa, Ryuta Atsumi, Chihiro Tatebayashi
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Patent number: 9509499Abstract: A method for registering a first electronic key, which is capable of controlling a communication subject, to a controller of the communication subject, the method including: performing an initial production process including storing identification information unique to the communication subject in the controller, and storing an encryption key generation code unique to the first electronic key and an encryption key that is used to verify the first electronic key in the first electronic key; and performing an initial registration process including writing the identification information stored in the controller to the first electronic key, obtaining the encryption key generation code from the first electronic key, generating the encryption key with an encryption key generation logic that uses the encryption key generation code, storing the encryption key in the controller, and storing encryption key information related to the encryption key in a database in association with the identification information.Type: GrantFiled: January 18, 2013Date of Patent: November 29, 2016Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae, Masaki Hayashi
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Patent number: 9489789Abstract: A method for registering an electronic key includes storing an electronic key ID and an encryption code in a controller to register the electronic key to the controller, and associating a communication subject ID, which is unique to a communication subject, with a controller ID, which is unique to the controller storing the electronic key ID and the encryption code, and the electronic key ID.Type: GrantFiled: February 6, 2014Date of Patent: November 8, 2016Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Daisuke Kawamura, Hiroaki Iwashita, Masaki Hayashi, Masaki Oshima, Tetsuya Egawa, Kazunori Arakawa
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Patent number: 9465730Abstract: Different block management values that sequentially increase are set for a plurality of blocks to indicate active states of the blocks. For example, a first block management value “$1111” is stored in a first block, and a second management value “$1112” is stored in a second block. Thus, even when more than one block is in an active state, an updated value is read from the block that stores a larger block management value. This allows for the true updated value to be read.Type: GrantFiled: May 1, 2012Date of Patent: October 11, 2016Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Kazunori Arakawa, Tetsuya Egawa, Hidekazu Adachi
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Publication number: 20160225207Abstract: An electronic key registration system includes an electronic key and a communication master. The electronic key transmits a registration code. The communication master receives the registration code from the electronic key, code, obtains key information using the registration code, and registers the key information. The registration code is set in accordance with the communication master to which the electronic key is registered. The communication master includes a level determination unit, which determines a key registration security level when the electronic key is registered to the communication master, and a registration execution unit, which obtains the key information using the registration code based on the determined key registration security level and registers the key information to the communication master.Type: ApplicationFiled: January 28, 2016Publication date: August 4, 2016Applicants: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daisuke KAWAMURA, Masahiro ARAKAWA, Masaki HAYASHI, Hiroaki IWASHITA, Tetsuya EGAWA, Kazunori ARAKAWA, Ryuta ATSUMI, Chihiro TATEBAYASHI
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Patent number: 9407436Abstract: An immobilizer ECU generates an encryption key using key generating logic, from a SEED code included in an ID code signal sent from an electronic key, and registers the encryption key to the immobilizer ECU. The immobilizer ECU receives an instruction from a registration and deletion tool and sends, to the electronic key, a deletion request signal that requests the deletion of the SEED code. The electronic key deletes the SEED code from the electronic key if a deletion request signal has been received.Type: GrantFiled: January 18, 2013Date of Patent: August 2, 2016Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae, Takeo Endo
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Patent number: 9397829Abstract: A method for registering first and second electronic keys, which are capable of controlling a communication subject, to a controller of the communication subject, wherein the first electronic key is to be initially registered, and the second electronic key is to be additionally registered, the method including: performing an additional key production process including storing, in the second electronic key, an additional encryption key generation code unique to the second electronic key and an additional encryption key that is used to verify the second electronic key; and performing a key additional registration process including obtaining the additional encryption key generation code from the second electronic key when identification information unique to the communication subject is stored in the second electronic key, generating the additional encryption key with an additional encryption key generation logic, and storing the additional encryption key in the controller.Type: GrantFiled: January 18, 2013Date of Patent: July 19, 2016Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Hiroaki Iwashita, Hideki Kawai, Tetsuya Egawa, Masaki Hayashi, Toshihiro Nagae, Daisuke Kawamura
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Patent number: 9392448Abstract: A wireless communications system that regularly executes verification between an electronic key and an immobilizer ECU, and sends and receives deletion request signals unrelated to verification, between the electronic key and the immobilizer ECU. The sending and receiving of deletion request signals is executed at intervals between the regularly executed verifications.Type: GrantFiled: January 18, 2013Date of Patent: July 12, 2016Assignee: KABUSHIKI KAISHA TOKI RIKA DENKI SEISAKUSHOInventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae
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Patent number: 9143320Abstract: An electronic key registration system includes a controller of a communication subject, an initial electronic key that communicates with the communication subject and has an initial encryption key generation code, an additional electronic key that communicates with the communication subject, and an information center including an additional encryption key. The initial electronic key holds an initial encryption key generated from the initial encryption key generation code and a logic. The controller holds the logic and identification information of the communication subject. The controller acquires the initial encryption key generation code from the initial electronic key, generates an initial encryption key from the initial encryption key generation code and the logic held by the controller, and stores the initial encryption key. The information center sends the additional encryption key to the additional electronic key or the controller through a network.Type: GrantFiled: May 1, 2013Date of Patent: September 22, 2015Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Daisuke Kawamura, Hiroaki Iwashita, Masaki Hayashi, Toshihiro Nagae, Hisashi Kato, Tetsuya Egawa
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Patent number: 9137658Abstract: An offline immobilizer ECU reads an encryption key generation code from an offline additional electronic key and generates an electronic key encryption key for the offline additional electronic key using the encryption key generation code and a communication subject key encryption key held by the immobilizer ECU. The immobilizer ECU stores, in a memory, the generated electronic key encryption key and a key ID code that is read from the offline additional electronic key.Type: GrantFiled: May 28, 2013Date of Patent: September 15, 2015Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Daisuke Kawamura, Hiroaki Iwashita, Masaki Hayashi, Toshihiro Nagae, Hisashi Kato, Tetsuya Egawa
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Patent number: 9094382Abstract: An immobilizer ECU transmits a vehicle ID code and a SEED code, which is read from an electronic key, to a data center online. The data center generates an encryption key from the received SEED code and a first logic, and generates a further SEED code from the encryption key, the vehicle ID code, and a second logic. The immobilizer ECU obtains the further SEED code online from the data center, generates the encryption key from the obtained further SEED code, the vehicle ID code, and the second logic, and stores the encryption key.Type: GrantFiled: May 28, 2013Date of Patent: July 28, 2015Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Daisuke Kawamura, Hiroaki Iwashita, Masaki Hayashi, Toshihiro Nagae, Hisashi Kato, Tetsuya Egawa
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Patent number: 9070279Abstract: An electronic key registration system includes a controller arranged in a communication subject communicable with an electronic key. A registration tool is in wired or wireless connection with the communication subject. The registration tool registers the electronic key to the controller when receiving a registration permission signal. An information center is connected to a network. The registration tool includes an operator ID acquisition unit that acquires an operator ID from a key registration operator. A communication unit sends the operator ID to the information center through the network. The information center includes an operator ID verification unit that verifies the operator ID received from the registration tool. A permission information notification unit sends, when the operator ID is verified, a registration permission signal to the registration tool through the network to permit the registration tool to perform the registration process.Type: GrantFiled: April 16, 2013Date of Patent: June 30, 2015Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Takahiro Shimizu, Tetsuya Egawa, Akihito Kimura, Toshihiro Nagae, Daisuke Kawamura, Hiroaki Iwashita
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Patent number: 9021184Abstract: In a flash memory device, after an updated value is copied from a first block to a second block, a block management value of the first block is set to an unused state, and maintenance is performed to erase data from the first block. When performing maintenance, the block management value of the first block B1 is rewritten from “$FFF0” to “$FFFF.” When a reset occurs and the power supply is deactivated during the maintenance, the digit of “$0” in the block management value may become “1” to “E” of the hexadecimal system. In this manner, when the block management value includes a single digit of “1” to “E” and three digits of “F,” the reading of an updated value from the block corresponding to the block management value is restricted.Type: GrantFiled: May 11, 2012Date of Patent: April 28, 2015Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Yosuke Ohashi, Kazunori Arakawa, Tetsuya Egawa, Hidekazu Adachi
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Publication number: 20150010145Abstract: A method for registering first and second electronic keys, which are capable of controlling a communication subject, to a controller of the communication subject, wherein the first electronic key is to be initially registered, and the second electronic key is to be additionally registered, the method including: performing an additional key production process including storing, in the second electronic key, an additional encryption key generation code unique to the second electronic key and an additional encryption key that is used to verify the second electronic key; and performing a key additional registration process including obtaining the additional encryption key generation code from the second electronic key when identification information unique to the communication subject is stored in the second electronic key, generating the additional encryption key with an additional encryption key generation logic, and storing the additional encryption key in the controller.Type: ApplicationFiled: January 18, 2013Publication date: January 8, 2015Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Hiroaki Iwashita, Hideki Kawai, Tetsuya Egawa, Masaki Hayashi, Toshihiro Nagae, Daisuke Kawamura
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Publication number: 20150003613Abstract: An immobilizer ECU generates an encryption key using key generating logic, from a SEED code included in an ID code signal sent from an electronic key, and registers the encryption key to the immobilizer ECU. The immobilizer ECU receives an instruction from a registration and deletion tool and sends, to the electronic key, a deletion request signal that requests the deletion of the SEED code. The electronic key deletes the SEED code from the electronic key if a deletion request signal has been received.Type: ApplicationFiled: January 18, 2013Publication date: January 1, 2015Inventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae, Takeo Endo
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Publication number: 20140359292Abstract: A method for registering a first electronic key, which is capable of controlling a communication subject, to a controller of the communication subject, the method including: performing an initial production process including storing identification information unique to the communication subject in the controller, and storing an encryption key generation code unique to the first electronic key and an encryption key that is used to verify the first electronic key in the first electronic key; and performing an initial registration process including writing the identification information stored in the controller to the first electronic key, obtaining the encryption key generation code from the first electronic key, generating the encryption key with an encryption key generation logic that uses the encryption key generation code, storing the encryption key in the controller, and storing encryption key information related to the encryption key in a database in association with the identification information.Type: ApplicationFiled: January 18, 2013Publication date: December 4, 2014Inventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae, Masaki Hayashi
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Publication number: 20140355761Abstract: A wireless communications system that regularly executes verification between an electronic key and an immobilizer ECU, and sends and receives deletion request signals unrelated to verification, between the electronic key and the immobilizer ECU. The sending and receiving of deletion request signals is executed at intervals between the regularly executed verifications.Type: ApplicationFiled: January 18, 2013Publication date: December 4, 2014Inventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae
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Publication number: 20140232521Abstract: A method for registering an electronic key includes storing an electronic key ID and an encryption code in a controller to register the electronic key to the controller, and associating a communication subject ID, which is unique to a communication subject, with a controller ID, which is unique to the controller storing the electronic key ID and the encryption code, and the electronic key ID.Type: ApplicationFiled: February 6, 2014Publication date: August 21, 2014Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Daisuke KAWAMURA, Hiroaki IWASHITA, Masaki HAYASHI, Masaki OSHIMA, Tetsuya EGAWA, Kazunori ARAKAWA