Patents by Inventor Hideki Kawai

Hideki Kawai 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).

  • Publication number: 20230115532
    Abstract: A vehicle 2 is provided with an authentication system 4 which enables operating a user's terminal 3 as a key to the vehicle 2. The authentication system 4 performs authentication by means of near-field communication between the terminal 3 and a wireless authentication device 22 and operates a device 20. A determination unit 33 confirms the use state of the terminal 3 at the time when near-field communication was performed, and determines whether or not the confirmed use state of the terminal 3 satisfies a condition for stopping or restricting the key function. If the determination unit 33 has determined that the confirmed use state of the terminal 3 satisfies the condition for stopping or restricting the key function, then a processing unit 36 performs processing for stopping or restricting the key function.
    Type: Application
    Filed: March 24, 2021
    Publication date: April 13, 2023
    Inventors: Masanori KOSUGI, Hideki KAWAI, Yohei NIWA, Shingo MOCHIZUKI, Haruki YAMAMURA, Akira HASEGAWA
  • Publication number: 20230097758
    Abstract: A control system comprising: a sensor configured to measure a distance to an object, and obtain a distance measurement value, the object existing in a measurement target space that is a space in which a position of an upper limb of a user who tries to operate a target object that is an object controlled by the control system is assumed to be found, and the distance measurement value being a value that indicates the measured distance; and a control section configured to execute a process related to the target object based on the distance measurement value obtained by the sensor.
    Type: Application
    Filed: June 28, 2022
    Publication date: March 30, 2023
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Kazunori SOBUE, Hideki KAWAI, Masanori KOSUGI
  • Publication number: 20230088363
    Abstract: A sensor outputs distance information indicating a distance to an object located in a detection area. A control device controls an operation of a device to be controlled based on a fact that the distance information satisfies prescribed conditions that include: i) a condition that the distance exhibits a change corresponding to an entry of the object into the detection area; ii) a condition that the distance maintains a first value for at least a first time length; and iii) a condition that a change of the distance including a monotonic decrease from the first value and a subsequent monotonic increase to a second value is finished within a second time length, wherein a difference between the first value and the second value is no greater than a threshold value.
    Type: Application
    Filed: September 2, 2022
    Publication date: March 23, 2023
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Masanori KOSUGI, Hideki KAWAI, Kazunori SOBUE
  • Publication number: 20230065436
    Abstract: An antenna is configured to receive authentication information through wireless communication from a mobile device adapted to be carried by a user. A detector is configured to perform detection of approach or contact of an object to be detected with respect to the antenna based on a change in an electrostatic capacitance. A control device is configured to control an operation of a device to be controlled based on a result of the detection in addition to authentication for authenticating the mobile device with the authentication information.
    Type: Application
    Filed: August 11, 2022
    Publication date: March 2, 2023
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Masanori KOSUGI, Hideki KAWAI
  • Patent number: 11520081
    Abstract: A flood detection device includes a detection result acquisition section, a weather information acquisition section and an identification section. The detection result acquisition section acquires a detection result that, on the basis of a plurality of kinds of running state data relating to running of a vehicle, detects flooding of a road on which the vehicle is running. The weather information acquisition section acquires weather information including at least one of rainfall information representing a measured rainfall amount in a region in which the vehicle is running or rainfall estimation information representing an estimated rainfall amount. The identification section uses the respective acquisition results of the detection result acquisition section and the weather information acquisition section to identify flooding of the road.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: December 6, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Ishihara, Hideki Kawai, Takayuki Yamabe, Yuichiro Nishi, Hiroyuki Yano
  • Patent number: 11453399
    Abstract: A flood sensing device includes: an acquiring section that acquires plural types of traveling state data relating to traveling of a vehicle; and a sensing section that senses flooding of a road on which the vehicle travels by using (a) a physical quantity that is estimated on the basis of (i) a vehicle behavior model, which is configured by driving force of the vehicle and traveling resistance that includes air resistance applied to the vehicle, slope resistance applied to the vehicle and rolling resistance applied to the vehicle, and which determines the physical quantity that varies due to the vehicle traveling, and (ii) the plural types of traveling state data of the present time that are acquired by the acquiring section, and (b) the physical quantity that is obtained from the traveling state data of the present time that is acquired by the acquiring section.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: September 27, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jun Hattori, Takayuki Yamabe, Kenki Ueda, Tetsuya Hashimoto, Hajime Tojiki, Naoki Ishihara, Yuta Ochiai, Hideki Kawai
  • Publication number: 20220239325
    Abstract: A casing has a housing section adapted to house a communication device. The communication device is configured to transmit, in response to a first signal, a second signal for controlling a controlled device. A controller is configured to cause an actuator to actuate a movable portion of the communication device so as to transmit the second signal in a case where the communication device receives a trigger signal from a mobile device adapted to be carried by a user. The controller is configured to cause a power supply control device to disable power supply a power source to the communication device in a case where an intensity of the first signal detected by a detector is no less than a threshold value while the first signal is not received by the communication device.
    Type: Application
    Filed: January 25, 2022
    Publication date: July 28, 2022
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Masanori KOSUGI, Hideki KAWAI
  • Patent number: 11385381
    Abstract: A flood detection device and method that acquires meteorological data; acquires traffic volume data representing vehicle traffic volume; and determines that an area, in which a vehicle traffic volume during or after rain is less than or equal to a predetermined number of vehicles, is flooded based on the meteorological data and the traffic volume data, when a probability, that the vehicle traffic volume in a normal time is less than or equal to the predetermined number of vehicles, is less than a predetermined value, the normal time being a state in which a rainfall amount is less than a predetermined value.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: July 12, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jun Hattori, Kenki Ueda, Tetsuya Hashimoto, Hajime Tojiki, Naoki Ishihara, Hideki Kawai
  • Publication number: 20210124088
    Abstract: A flood detection device and method that acquires meteorological data; acquires traffic volume data representing vehicle traffic volume; and determines that an area, in which a vehicle traffic volume during or after rain is less than or equal to a predetermined number of vehicles, is flooded based on the meteorological data and the traffic volume data, when a probability, that the vehicle traffic volume in a normal time is less than or equal to the predetermined number of vehicles, is less than a predetermined value, the normal time being a state in which a rainfall amount is less than a predetermined value.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 29, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jun HATTORI, Kenki UEDA, Tetsuya HASHIMOTO, Hajime TOJIKI, Naoki ISHIHARA, Hideki KAWAI
  • Publication number: 20210080616
    Abstract: A flood detection device includes a detection result acquisition section, a weather information acquisition section and an identification section. The detection result acquisition section acquires a detection result that, on the basis of a plurality of kinds of running state data relating to running of a vehicle, detects flooding of a road on which the vehicle is running. The weather information acquisition section acquires weather information including at least one of rainfall information representing a measured rainfall amount in a region in which the vehicle is running or rainfall estimation information representing an estimated rainfall amount. The identification section uses the respective acquisition results of the detection result acquisition section and the weather information acquisition section to identify flooding of the road.
    Type: Application
    Filed: September 11, 2020
    Publication date: March 18, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki ISHIHARA, Hideki KAWAI, Takayuki YAMABE, Yuichiro NISHI, Hiroyuki YANO
  • Publication number: 20210046938
    Abstract: A flooding sensing device, including: an acquisition section configured to acquire vehicle model information and plural items of travel state data related to travel of a vehicle; and a detection section configured to select a vehicle behavior model from plural vehicle behavior models that are derived in advance for each vehicle model, the vehicle behavior model corresponding to the vehicle model information and calculates a physical quantity that changes in accordance with travel by the vehicle, the detection section detects flooding of a road on which the vehicle travels, using the physical quantity, which is predicted based on the selected vehicle behavior model and on the current plurality of items of travel state data acquired by the acquisition section, and using the physical quantity, which is obtained from the current plurality of items of travel state data acquired by the acquisition section.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 18, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jun HATTORI, Takayuki YAMABE, Kenki UEDA, Tetsuya HASHIMOTO, Hajime TOJIKI, Naoki ISHIHARA, Yuta OCHIAI, Hideki KAWAI
  • Publication number: 20210046937
    Abstract: A flood sensing device includes: an acquiring section that acquires plural types of traveling state data relating to traveling of a vehicle; and a sensing section that senses flooding of a road on which the vehicle travels by using (a) a physical quantity that is estimated on the basis of (i) a vehicle behavior model, which is configured by driving force of the vehicle and traveling resistance that includes air resistance applied to the vehicle, slope resistance applied to the vehicle and rolling resistance applied to the vehicle, and which determines the physical quantity that varies due to the vehicle traveling, and (ii) the plural types of traveling state data of the present time that are acquired by the acquiring section, and (b) the physical quantity that is obtained from the traveling state data of the present time that is acquired by the acquiring section.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 18, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jun HATTORI, Takayuki Yamabe, Kenki Ueda, Tetsuya Hashimoto, Hajime Tojiki, Naoki Ishihara, Yuta Ochiai, Hideki Kawai
  • Patent number: 9863473
    Abstract: The present disclosure provides a processing method for preparing at least one sliding part of a pair of sliding parts, and includes a processing step of forming a shallow groove within a range of depth from 0.05 ?m to 5 ?m on a sealing face of the sliding part by irradiating an ultrashort pulse laser to a part of the sealing face where a positive pressure generation groove and a negative pressure generation groove are formed and removing part of a surface of the sealing face, wherein an energy fluence of the ultrashort pulse laser used in the processing step is 0.5 J/(cm2·pulse) to 7 J/(cm2·pulse).
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: January 9, 2018
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Takeshi Hosoe, Shinji Nishida, Koichi Mori, Yuta Negishi, Hideki Kawai, Masatoshi Itadani
  • Publication number: 20170067510
    Abstract: The present disclosure provides a processing method for preparing at least one sliding part of a pair of sliding parts, and includes a processing step of forming a shallow groove within a range of depth from 0.05 ?m to 5 ?m on a sealing face of the sliding part by irradiating an ultrashort pulse laser to a part of the sealing face where a positive pressure generation groove and a negative pressure generation groove are formed and removing part of a surface of the sealing face, wherein an energy fluence of the ultrashort pulse laser used in the processing step is 0.5 J/(cm2·pulse) to 7 J/(cm2·pulse).
    Type: Application
    Filed: February 23, 2015
    Publication date: March 9, 2017
    Inventors: Takeshi HOSOE, Shinji NISHIDA, Koichi MORI, Yuta NEGISHI, Hideki KAWAI, Masatoshi ITADANI
  • Patent number: 9509499
    Abstract: 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: Grant
    Filed: January 18, 2013
    Date of Patent: November 29, 2016
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae, Masaki Hayashi
  • Patent number: 9407436
    Abstract: 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: Grant
    Filed: January 18, 2013
    Date of Patent: August 2, 2016
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae, Takeo Endo
  • Patent number: 9397829
    Abstract: 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: Grant
    Filed: January 18, 2013
    Date of Patent: July 19, 2016
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Hiroaki Iwashita, Hideki Kawai, Tetsuya Egawa, Masaki Hayashi, Toshihiro Nagae, Daisuke Kawamura
  • Patent number: 9392448
    Abstract: 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: Grant
    Filed: January 18, 2013
    Date of Patent: July 12, 2016
    Assignee: KABUSHIKI KAISHA TOKI RIKA DENKI SEISAKUSHO
    Inventors: Daisuke Kawamura, Hideki Kawai, Tetsuya Egawa, Hiroaki Iwashita, Toshihiro Nagae
  • Patent number: 9242618
    Abstract: A wireless communication system including a portable device and a vehicle device configured to transmit information including a vehicle state. The portable device includes a telecommunication unit that obtains, through an information network, information including procedures that should be taken in accordance with the vehicle state or state of the portable device, a display, and a control unit that shows on the display the vehicle state based on the information transmitted from the vehicle device or the state of the portable device based on information of the portable device. When a measure should be taken in accordance with the vehicle state or the state of the portable device, the control unit shows on the display the procedures included in the information obtained by telecommunication unit.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: January 26, 2016
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Hideki Kawai, Hiroaki Kojima
  • Patent number: 9190096
    Abstract: Disclosed is a method for producing a glass substrate, which involves a first polishing step and a second polishing step both for polishing the surface of the glass substrate with a polishing solution containing a polishing agent. The method is characterized by additionally involving a heating step for heating the glass substrate, wherein the heating step is carried out after the first polishing step and before the second polishing step.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: November 17, 2015
    Assignee: HOYA CORPORATION
    Inventors: Kenichi Sasaki, Hideki Kawai