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: 11621779
    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: Grant
    Filed: June 19, 2019
    Date of Patent: April 4, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Ken Ito, Masaaki Inami, Hideki Maeda
  • Publication number: 20230095760
    Abstract: An on-vehicle relay device comprises a control unit selectively executing a control program stored in a storage or an update processing program, and the control unit specifies, in executing the control program, a first communication unit to which any one of the on-vehicle ECUs as a relay destination is connected with reference to network configuration information stored in a storage, specifying, in executing the update processing program, a second communication unit for communicating with an external device that performs update-related processing of the control program with reference to network configuration information stored in the storage; and prohibiting communication through a communication unit other than the specified communication unit.
    Type: Application
    Filed: March 8, 2021
    Publication date: March 30, 2023
    Inventors: Darmawan GO, Hideki MAEDA, Takeshi HAGIHARA, Tatsuya IZUMI, Ichiro KANDA
  • Patent number: 11613196
    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: Grant
    Filed: February 8, 2021
    Date of Patent: March 28, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takuya Tomioka, Hideki Maeda, Koichi Hirota, Taiki Ishiguro, Tomoyuki Kato, Takeshi Nishikibe
  • Publication number: 20230082032
    Abstract: An inter-transmission device connection registration device 30A includes a storage unit 31 that registers connection information of a case where transponders 12a to 13n and photo couplers 14a to 14n as divided various transmission devices are connected through a port o and a port i, a light emission instruction unit 33 that provides a light emission instruction to the subordinately connected transponders, a transmission/reception detection unit 34 configured to detect a light transmission and a light reception at opposing ports o and i1 between transmission devices, e.g., the transponder 12a and the photo coupler 14 in accordance with the light emission instruction, and a registration control unit 35 that performs a control of registering, in the storage unit 31, connection information W2a of the port o on a light transmission side and the port i1 on a light reception side that are detected.
    Type: Application
    Filed: February 25, 2020
    Publication date: March 16, 2023
    Inventors: Kentaro Honda, Ken Ito, Hideki Maeda
  • Publication number: 20220416897
    Abstract: An optical amplifier (21) configured to operate with saturated output power is coupled on the receive side with respect to a receiver (18) coupled to a transmitter (17) via an optical fiber (14). The saturated output power is represented as a saturation characteristic drawing a flat curve in which, as power (input optical power) of an optical signal (22i) inputted to the optical amplifier (21) increases in excess of a given level, the variation in power (output optical power) of an optical signal (22o) outputted from the optical amplifier (21) decreases. Consequently, information represented by the optical signal (22o) inputted from the optical amplifier (21) to the receiver (18) can be properly received.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 29, 2022
    Inventors: Kohei Saito, Hiroki Kawahara, Takeshi SEKI, Hideki Maeda
  • Publication number: 20220364037
    Abstract: The purpose of the present invention is to efficiently dispense cells while reducing the risk of incorporating bacteria, etc. A cell dispensing device 1 includes: a first tube 23a which connects a container 21 and a dispensing container 22; a syringe pump 24 attached to a second tube 23b connected to a branching portion 31 formed on the first tube 23a; and a buffer tank 25 provided between the syringe pump 24 and the branching portion 31. In addition, a cell suspension contained in the container 21 is temporarily stored in the buffer tank 25 by means of the syringe pump 24, and the cell suspension stored in the buffer tank 25 is delivered to the dispensing container 22.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 17, 2022
    Applicant: Sinfonia Technology Co., Ltd.
    Inventors: Daichi Horii, Hiroyuki Uda, Hideki Maeda, Haruki Takeuchi
  • Publication number: 20220360520
    Abstract: To easily design a communication path topology optimized in view of reducing the amount of equipment needed under the condition that availability against multiple failures in a network is maintained. A transmission path design apparatus (100) performs: a step (S14) of extracting, from the multiple base stations, a first group of base stations whose number of communication-path routes connected is large, based on transmission network model initial data (D0); a step (S16) of extracting a first group of communication paths connecting the base stations in the first group; a step (S16) of calculating a both-end path value (d_i,j) for each communication path in the first group; and steps (S18 to S24) of determining the communication path whose both-end path value satisfies a predetermined condition as a thinning-out target communication path, and generating output data Dy in which the thinning-out target communication path is reflected on the transmission network model initial data.
    Type: Application
    Filed: June 17, 2019
    Publication date: November 10, 2022
    Inventors: Hiroshi YAMAMOTO, Toshiyuki OKA, Hideki MAEDA
  • Publication number: 20220358526
    Abstract: A part information management device (10) includes: a part setting information acquirement unit (111) that acquires, as part setting information, information for identifying parts set in apparatuses; a market data acquirement unit (112) that acquires, for each of the parts, market data related to a part change of the part; a risk estimation unit (114) that estimates a risk of a silent change by a predetermined estimation algorithm with use of the market data, the risk of the silent change indicating that the part is changed; and a part information generation unit (113) that generates part information with the part setting information acquired for each of the parts and the estimated risk of the silent change corresponding to each other and stores the part information in a storage unit (13).
    Type: Application
    Filed: June 21, 2019
    Publication date: November 10, 2022
    Inventors: Masahiro YOKOTA, Masatoshi NAMIKI, Hiroto TAKECHI, Katsuhiro ARAYA, Masaaki INAMI, Daisaku SHIMAZAKI, Hideki MAEDA
  • Publication number: 20220353206
    Abstract: A transmission device (10) includes a flow table (11) that stores identification information about an uninterruptible target flow; a transmission-side identification unit (12) that identifies whether a received packet is from the target flow or a non-target flow based on whether the received packet matches the identification information about the target flow stored in the flow table (11); a tag application unit (13) that applies, to packets from the target flow, an uninterruptible identifier indicating that the packets are from the target flow and a sequence number for distinguishing the packets from other packets; and a branch unit (14) that branches the packets from the target flow processed by the tag application unit (13) into packets to be transferred to an active path (41) among redundant routes and packets to be transferred to a backup path (42) among the redundant routes.
    Type: Application
    Filed: June 20, 2019
    Publication date: November 3, 2022
    Inventors: Hiroto TAKECHI, Hideki MAEDA, Daisaku SHIMAZAKI, Masaaki INAMI, Katsuhiro ARAYA, Masatoshi NAMIKI, Masahiro YOKOTA
  • Publication number: 20220341240
    Abstract: An opening-closing member controller includes a control unit that executes an initialization process to store at least a fully closed position of an opening-closing member. In the initialization process, the control unit closes the opening-closing member, executes entrapment reversing control one or more times when entrapment is detected to open the opening-closing member, and closes the opening-closing member after the entrapment reversing control to store a position where the opening-closing member locks as the fully closed position.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 27, 2022
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki AOSHIMA, Akiyoshi OHARA, Ryo MIYAZAKI, Kenji KANEKO, Tsuyoshi SUGIMOTO, Toshihiro GOTOU, Hideki MAEDA
  • Patent number: 11469966
    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: Grant
    Filed: July 3, 2019
    Date of Patent: October 11, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Yuji Minato, Masahiro Yokota, Masatoshi Namiki, Masaaki Inami, Daisaku Shimazaki, Hideki Maeda
  • 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
  • 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: 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