Patents by Inventor Hideki Maeda

Hideki Maeda 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: 11454756
    Abstract: A plastic optical fiber for a medical device lighting decreases the cost of a lens and simplify the design of a lighting apparatus, wherein the plastic optical fiber for a medical device includes a core composed of a (co)polymer containing methyl methacrylate as a main component and is characterized by including a cladding material composed of a copolymer having a fluorine weight composition ratio of 60 to 74%, and by having a theoretical numerical aperture, NA, of 0.48 to 0.65 and, thus, the plastic optical fiber has a high numerical aperture and also has excellent translucency and flexibility.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: September 27, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Hideki Kojima, Hironobu Maeda, Shinji Sato, Hidekazu Kunieda, Satoshi Matsuba
  • Publication number: 20220286762
    Abstract: A monitoring control unit (22) of an OXC (20d) stores a management table (22a) in which pieces of information regarding a modulation mode, an FEC, and a frame mode of an optical signal are associated with each other, and sequentially changes the modulation mode, the FEC, and the frame mode according to the management table (22a) upon an LOS alert from a relay-side optical input/output unit (24) or an LOF alert from a DSP (25) being input thereto. Upon successfully receiving an appropriate optical signal according to the change, the monitoring control unit (22) acquires transmission source information included in the optical signal, and detects an occurrence of erroneous connection of an optical transmission line in an OXC (20g), which serves as a relay apparatus, when the acquired transmission source information indicates an optical cross-connect apparatus that is a transmission source different from an original transmission source.
    Type: Application
    Filed: July 12, 2019
    Publication date: September 8, 2022
    Inventors: Masatoshi Namiki, Masahiro YOKOTA, Hiroki Kawahara, Hiroto TAKECHI, Katsuhiro Araya, Masaaki Inami, Daisaku Shimazaki, Hideki Maeda
  • Publication number: 20220278544
    Abstract: A power conversion system includes a converter, a current sensor, and a motor ECU. The converter is configured to boost a voltage by operating at a set carrier frequency. The current sensor detects a current flowing through the converter. The motor ECU executes control for protecting the converter. The motor ECU estimates a temperature rise amount of the converter according to at least one of the carrier frequency and a voltage ratio before and after boosting the converter, and a detected value of the current sensor, and executes control for suppressing the current flowing through the converter in a case where an integrated value of the temperature rise amount reaches a threshold.
    Type: Application
    Filed: January 26, 2022
    Publication date: September 1, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideki MAEDA
  • Publication number: 20220278908
    Abstract: An information management method collects log information of one or more home electrical apparatuses corresponding to service providers. Display screen data is generated which indicates a status of the log information. The display screen data includes groups of information which each contain information on an apparatus, a service provider corresponding to the apparatus, and log information output from the apparatus. Provision of the log information of each group is individually selectable. The display screen data is provided via a network to a display terminal that performs access to a server device. Information is received from the display terminal, which indicates that selection on whether or not provision of the log information is performed. Provision of the log information is not performed on the selected group when a determination is made that refusal of provision of the log information on the selected group is performed.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 1, 2022
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Hideki MATSUSHIMA, Motoji OHMORI, Natsume MATSUZAKI, Yuichi FUTA, Toshihisa NAKANO, Manabu MAEDA, Yuji UNAGAMI, Hiroshi AMANO, Kotaro HAKODA
  • Patent number: 11425032
    Abstract: A switching device relays data in an on-vehicle network and has a plurality of communication ports. The switching device comprises: a detection unit that detects a failure in communication with another switching device connected to one of the communication ports; and a processing unit that transmits failure information indicating at least any one of a site where the failure in communication occurs and a communication port to be used when the failure in communication occurs by a target switching device being a switching device different from said another switching device, to the target switching device if the failure in communication is detected by the detection unit.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 23, 2022
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd., AutoNetworks Technologies, Ltd.
    Inventors: Hayato Shikata, Hirofumi Urayama, Hideki Maeda, Yasuhiro Yabuuchi, Takeshi Hagihara
  • Patent number: 11425128
    Abstract: A method for use in a network system is provided. The network system includes a plurality of electronic controllers that transmits and receives, via a network, a plurality of frames. The plurality of frames includes at least one control frame that instructs predetermined control to an object of control. The method receives, sequentially, the plurality of frames from the network, and determines whether the predetermined control, instructed by the control frame received in the receiving, is to be suppressed, based on a set of frames received in the receiving. The set of frames is received in the receiving within a predetermined period preceding a time of reception of the control frame.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 23, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takeshi Kishikawa, Manabu Maeda, Tohru Wakabayashi, Toshihisa Nakano, Hideki Matsushima
  • Patent number: 11411879
    Abstract: A management device of a transmission system includes a new path information input unit, a statistical information collecting unit that collects statistical information of actual traffic from nodes, and an uninterruptible path designing unit that calculates a delay fluctuation in an entire path with respect to a fluctuation for each section of the path, and designs a path in which the calculated delay fluctuation is smaller than a maximum fluctuation amount according to a buffering amount in the reception node as an uninterruptible path, a path information setting unit that updates path information of the path and stores the updated path information in an existing path information storage unit, and sets a bandwidth permitted in a node constituting the path in the node, and a notification unit that notifies a user of a path that was not designed as the uninterruptible path.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: August 9, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Masatoshi Namiki, Masahiro Yokota, Yuji Minato, Masaaki Inami, Daisaku Shimazaki, Hideki Maeda
  • Publication number: 20220239376
    Abstract: An optical transmission system (10) includes a plurality of transmission devices such as transponders (TPs) and optical cross-connects (OXCs) installed in each of stations (11-15) connected via a communication network, a control device (20), and a substitute OXC (502) serving as a substitute transmission device. The control device 20 is installed in a control station (14) of the stations. The control device (20) controls the transmission devices of the stations (11-15) in a centralized manner in accordance with physical network (NW) configuration information (20D) stored in a DB (21) and including config information. When a transmission device is replaced with a new OXC (5o3) serving as a new transmission device, the substitute OXC (5o2) operates as a substitute for the new OXC (5o3) to communicate with the control device (20) until config setting necessary for the new OXC (5o3) is completed.
    Type: Application
    Filed: June 19, 2019
    Publication date: July 28, 2022
    Inventors: Ken Ito, Masaaki Inami, Hideki Maeda
  • Publication number: 20220239369
    Abstract: A transmission device (1) to replace a failed transmission device is provided with a search unit (12) that searches for an opposite transmission device, a path establishment unit (13) that establishes a communication path passing through the transmission device (1) and the opposite transmission device, an NW construction unit (14) that constructs, by using the established communication path, an individual NW in which at least the transmission device (1) and the opposite transmission device are arranged. In addition, the transmission device (1) is further provided with a restoration support unit (15) for applying setting by an OpS (Operation System) to the transmission device (1).
    Type: Application
    Filed: June 21, 2019
    Publication date: July 28, 2022
    Inventors: Kentaro Honda, Hideki Maeda, Masaaki Inami
  • Patent number: 11374787
    Abstract: A switch device installed in a vehicle is provided with: a switch unit configured to relay communication data between a plurality of function units installed in the vehicle; a storage unit configured to hold the communication data to be relayed; and a control unit configured to determine a state of the storage unit, and adjust, for each of applications, a throughput of the communication data to be transmitted from the function units, based on a result of the determination.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: June 28, 2022
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetwork Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Akihito Iwata, Hideyuki Tanaka, Hideki Maeda, Tatsuya Izumi, Takeshi Hagihara, Yasuhiro Yabuuchi, Yasuhiro Yamasaki, Hiroya Ando, Toshio Kawamura, Hirofumi Urayama
  • Patent number: 11196702
    Abstract: An in-vehicle communication device is an in-vehicle communication device that performs a relay process of relaying data between functional units in an in-vehicle network, and includes a communication unit that performs the relay process using correspondence information indicating a correspondence relation between an Internet protocol (IP) address and a media access control (MAC) address of one or more functional units, an address managing unit that generates the correspondence information, and an authenticating unit that performs an authentication process for the functional unit, in which the authenticating unit performs the authentication process for the functional unit in which an IP address and a MAC address are newly registered in the correspondence information by the address managing unit, and the address managing unit deletes the correspondence relation of the functional unit from the correspondence information when the authentication process for the newly registered functional unit is not successfully
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: December 7, 2021
    Assignees: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Akihiro Ogawa, Hideki Maeda, Hirofumi Urayama, Takeshi Hagihara, Yasuhiro Yabuuchi
  • Publication number: 20210344522
    Abstract: A switch device installed in a vehicle is provided with: a switch unit configured to relay communication data between a plurality of function units installed in the vehicle; a storage unit configured to hold the communication data to be relayed; and a control unit configured to determine a state of the storage unit, and adjust, for each of applications, a throughput of the communication data to be transmitted from the function units, based on a result of the determination.
    Type: Application
    Filed: August 1, 2019
    Publication date: November 4, 2021
    Applicants: Sumitomo Electric Industries, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Akihito IWATA, Hideyuki TANAKA, Hideki MAEDA, Tatsuya IZUMI, Takeshi HAGIHARA, Yasuhiro YABUUCHI, Yasuhiro YAMASAKI, Hiroya ANDO, Toshio KAWAMURA, Hirofumo URAYAMA
  • Publication number: 20210281489
    Abstract: [Problem] A transmission system, an apparatus management server, a failure management method, and a program enabling the cause of a failure associated with a silent change of an article to be swiftly identified are provided. [Solution] An apparatus management server 100 of a transmission system includes a collection unit configured to collect history information on an introduction instance of articles to an optical transmission apparatus 10 and an information analysis unit 130 configured to visualize and display, based on the history information collected, a graph in which a starting date of use for each of the articles is associated with the number of introductions of the article.
    Type: Application
    Filed: July 3, 2019
    Publication date: September 9, 2021
    Inventors: Yuji Minato, Masahiro Yokota, Masatoshi Namiki, Masaaki Inami, Daisaku Shimazaki, Hideki Maeda
  • Publication number: 20210266266
    Abstract: [Problem] A management device for a transmission system and a designing method for a transmission system which enable flexible bandwidth designing according to conditions of paths.
    Type: Application
    Filed: June 27, 2019
    Publication date: August 26, 2021
    Inventors: Masatoshi Namiki, Masahiro Yokota, Yuji Minato, Masaaki Inami, Daisaku Shimazaki, Hideki Maeda
  • Publication number: 20210264352
    Abstract: [Problem] Inventory information about a network device can be known without vendor intervention. [Solution] The network device information management apparatus 20 includes: a log data acquisition unit configured to acquire log data from each of the plurality of devices 40, the log data including information about components 42 of the plurality of devices; and an inventory information estimation unit configured to exclude a common portion of the log data before and after registration of the component 42 to extract a component configuration indicating information about the component 42 newly registered to the device 40, compare the extracted component configuration with the component configuration extracted from a component 42 registered to another device 40, estimate the common portion as inventory information, and store the estimated inventory information in storage means.
    Type: Application
    Filed: June 21, 2019
    Publication date: August 26, 2021
    Inventors: Masahiro Yokota, Masatoshi Namiki, Yuji Minato, Masaaki Inami, Daisaku Shimazaki, Hideki Maeda
  • Publication number: 20210245649
    Abstract: A ramp system for a vehicle includes a control device. Using an obstacle detection device, the control device determines whether an obstacle exists within a ramp extension area. Upon determining that an obstacle exists within the ramp extension area, the control device causes a vehicle to move to a location in which no obstacle exists within the ramp extension area.
    Type: Application
    Filed: December 28, 2020
    Publication date: August 12, 2021
    Inventors: Hideki MAEDA, Shunsuke KANAGAI, Masaaki TANAKA, Isao HONDA, Taiki ISHIGURO, Tomoyuki KATO, Takeshi NISHIKIBE, Dai HIDAKA
  • Publication number: 20210245650
    Abstract: When it is confirmed that a user exists based on an image of the situation outside a vehicle which is captured using a camera and a proximity sensor detects a fact that the user is approaching based on, for example, a putting of a hand of the user over the proximity sensor, a control device causes a ramp to be extended. As such, a user sitting in a wheelchair can cause the ramp to be extended by approaching the proximity sensor, such as the putting of the user's hand over the proximity sensor such that the user sitting in the wheelchair does not have to press an extension/storage button provided on the vehicle to cause the ramp to be extended.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 12, 2021
    Inventors: Takuya TOMIOKA, Hideki MAEDA, Koichi HIROTA, Taiki ISHIGURO, Tomoyuki KATO, Takeshi NISHIKIBE
  • Patent number: 11063908
    Abstract: This on-vehicle communication device includes: a storage unit configured to store correspondence information indicating a correspondence relationship between an address and a port number; and a communication unit configured to perform, by using the correspondence information, filtering of a packet having been received. A target port number which is a port number of a target instrument is registered in advance in the correspondence information. In the filtering, the communication unit selectively allows a packet that includes the target port number, to pass. The communication unit performs an address registration process of acquiring an address from the packet that includes the target port number and registering, into the correspondence information, the acquired address in association with the target port number. In the filtering after the address registration process, the communication unit selectively allows a packet that includes the target port number and the corresponding address, to pass.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 13, 2021
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Darmawan Go, Hideki Maeda, Takeshi Hagihara, Yasuhiro Yabuuchi, Yasuhiro Yamasaki, Hiroya Ando, Toshio Kawamura, Hirofumi Urayama
  • Patent number: 11046199
    Abstract: An electric vehicle includes a main battery, a power converter, a relay, and a controller. The power converter is a device that converts power of the main battery to drive electric power for a motor. The power converter includes a voltage sensor that measures an input voltage. The relay is connected between the main battery and the power converter. The controller stores an output value of the voltage sensor as an offset value at time after a vehicle main switch is turned on and before the relay is closed. The controller controls the power converter based on a value acquired by subtracting the offset value from the output value of the voltage sensor after the relay is closed. The controller opens the relay when a value acquired by subtracting the offset value from the travel-time output value exceeds a first voltage threshold.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: June 29, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideki Maeda
  • Publication number: 20200389436
    Abstract: This on-vehicle communication device includes: a storage unit configured to store correspondence information indicating a correspondence relationship between an address and a port number; and a communication unit configured to perform, by using the correspondence information, filtering of a packet having been received. A target port number which is a port number of a target instrument is registered in advance in the correspondence information. In the filtering, the communication unit selectively allows a packet that includes the target port number, to pass. The communication unit performs an address registration process of acquiring an address from the packet that includes the target port number and registering, into the correspondence information, the acquired address in association with the target port number. In the filtering after the address registration process, the communication unit selectively allows a packet that includes the target port number and the corresponding address, to pass.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 10, 2020
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Darmawan GO, Hideki MAEDA, Takeshi HAGIHARA, Yasuhiro YABUUCHI, Yasuhiro YAMASAKI, Hiroya ANDO, Toshio KAWAMURA, Hirofumi URAYAMA