Patents by Inventor Satoshi Shigematsu

Satoshi Shigematsu 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: 10766347
    Abstract: A battery unit (38F) comprising a plurality of batteries (3) and a connection control device (35a, 35b, 36a, 36b, 36d, 36e) which controls electrical connection relating to the battery unit (38F) are provided in a vehicle (1). The battery unit (38F) comprises two groups (S1R, S1L) of the batteries (3) disposed to have a space (G) there-between, and the connection control device (35a, 35b, 36a, 36b, 36d, 36e) is disposed in the space (G). The layout of the connection control device (35a, 35b, 36a, 36b, 36d, 36e) is thereby optimized and the length of a harness (34) can be shortened.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: September 8, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Makoto Iwasa, Hidetoshi Kadota, Tadayoshi Hashimura, Satoshi Shigematsu, Nobuhiro Mori, Kentaro Hatta
  • Publication number: 20200203178
    Abstract: Provided is a method of evaluating the impurity gettering capability of an epitaxial silicon wafer, which allows for very precise evaluation of the impurity gettering behavior of a modified layer formed immediately under an epitaxial layer, the modified layer containing carbon in solid solution. In this method, a modified layer located immediately under an epitaxial layer, the modified layer containing carbon in solid solution, is analyzed by three-dimensional atom probe microscopy, and the impurity gettering capability of the modified layer is evaluated based on a three-dimensional map of carbon in the modified layer, obtained by the analysis.
    Type: Application
    Filed: January 12, 2018
    Publication date: June 25, 2020
    Applicant: SUMCO CORPORATION
    Inventors: Satoshi SHIGEMATSU, Ryosuke OKUYAMA, Kazunari KURITA
  • Patent number: 10679897
    Abstract: Disclosed herein is a device wafer processing method including a protective film forming step of applying a water-soluble protective film material to the front side of a device wafer having devices separated by division lines and next exposing the division lines to form a protective film for protecting each device, an application time recording step of recording the time at which the water-soluble protective film material is applied to the device wafer, a determining step of determining whether or not a predetermined duration has elapsed from the time recorded in the application time recording step, an etching step of dry-etching the device wafer along the division lines after performing the determining step, and a protective film removing step of supplying a cleaning water to the protective film to thereby remove the protective film after performing the etching step. Only when it is determined in the determining step that the predetermined duration has not elapsed, the etching step is performed.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 9, 2020
    Assignee: DISCO CORPORATION
    Inventors: Koichi Shigematsu, Satoshi Kumazawa
  • Patent number: 10602407
    Abstract: A CU (Central Unit) executes scheduling for allocating radio resources of RRUs (Remote Radio Units) to radio transmission of downlink data while broadcasting, to DMs (Data Managers) via MFH, downlink data from MBH. Each DM selects, based on an allocation result obtained by scheduling, the downlink data of an RRU (Remote Radio Unit) corresponding to the self DM from the accumulated downlink data from the CU, and transfers the selected downlink data to the corresponding RRU while discarding the downlink data of other RRUs. Based on the allocation result, each RRU performs radio transmission of the downlink data from the DM to a corresponding UE (User Equipment) using the designated radio resource. This makes it possible to efficiently transfer the downlink data from the CU to each RRU via the MFH constructed by a TDM system represented by TDM-PON.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: March 24, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroyuki Uzawa, Yuki Arikawa, Kenji Kawai, Satoshi Shigematsu
  • Patent number: 10485008
    Abstract: A convergence pattern selection unit (10A) sequentially generates a plurality of different patterns based on designated initial conditions, selects, as a convergence pattern, a pattern in which evaluation value has converged to an extreme value, and repeatedly executes selection of the convergence pattern by changing the initial conditions every time the convergence pattern is selected. A transmission pattern determination unit (10B) selects, as an optimum transmission pattern, one of the convergence patterns obtained by the convergence pattern selection unit (10A), which has the highest evaluation value. This allows searches for an optimum transmission pattern having a better evaluation value.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 19, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuki Arikawa, Hiroyuki Uzawa, Kenji Kawai, Satoshi Shigematsu
  • Patent number: 10397133
    Abstract: An upstream allocation circuit (14) and a downstream allocation circuit (15) are provided in an OLT (1). For example, a superimposed frame obtained by bundling upstream frames (upstream control frames+upstream data frames) from all ONUS is input to the upstream allocation circuit (14) via a frame reproduction circuit (12-1). The superimposed frame may be generated at the stage of optical signals or generated after converting optical signals into electrical signals. The upstream allocation circuit (14) allocates each of the upstream control frames bundled into the superimposed frame to a predetermined PON control circuit (13) based on information (PON port number or LLID) added to the frames. The downstream allocation circuit (15) allocates, to a preset frame reproduction circuit (12), each downstream control frames output from the PON control circuits (13).
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: August 27, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Saki Hatta, Tomoaki Kawamura, Kenji Kawai, Nobuyuki Tanaka, Satoshi Shigematsu, Namiko Ikeda, Shoko Ohteru, Junichi Kato
  • Publication number: 20190245715
    Abstract: A link control circuit (10) includes a plurality of hardware processing units serving as an uplink parser unit (11) configured to output, as an event, the contents of link control notified by an uplink control frame, a timer unit (12) configured to start/stop a timer and output a link event in accordance with expiration of the timer, a frame generation unit (13) configured to generate a downlink control frame containing the contents of link control, and a state management unit (15) configured to manage the state of the link in accordance with these events, and instruct the timer unit to start/stop the timer and the frame generation unit to generate the downlink control frame in accordance with the state of the link, thereby controlling connection establishment, maintenance, and disconnection of the link.
    Type: Application
    Filed: July 18, 2017
    Publication date: August 8, 2019
    Inventors: Saki HATTA, Nobuyuki TANAKA, Satoshi SHIGEMATSU
  • Patent number: 10193630
    Abstract: A selection and distribution circuit (13) is provided between N optical transceivers (11) and one PON control circuit (12). The selection and distribution circuit (13) selects the optical transceiver (11) corresponding to an upstream frame that time-divisionally arrives, thereby transferring the upstream frame opto-electrically converted by the transceiver (11) to the PON control circuit (12) and distributing a downstream frame from the PON control circuit (12) to each optical transceiver (11). A power supply control circuit (23) stops power supply to at least one of one of optical transceivers (11) that are not used to transfer the frame of the optical transceivers (11) and a circuit that is not used to transfer the frame in the selection and distribution circuit (13). This can reduce the system cost per ONU in the optical transmission system.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: January 29, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko Ohteru, Namiko Ikeda, Saki Hatta, Satoshi Shigematsu, Nobuyuki Tanaka, Kenji Kawai, Junichi Kato, Tomoaki Kawamura, Hiroyuki Uzawa, Yuki Arikawa, Naoki Miura
  • Patent number: 10074830
    Abstract: A battery housing structure for housing a battery body that includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. A housing member houses the battery body and includes conductors connected to the positive electrode layer and the negative electrode layer, respectively. An interposition member is interposed between the battery body and the housing member.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: September 11, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Shigematsu, Kazuhiro Yamada, Masanori Endo
  • Patent number: 10062501
    Abstract: An ESD protection device includes a multilayer body including base material layers, a hollow portion inside the multilayer body, a ground electrode exposed at the hollow portion, first and second discharge electrodes exposed at the shared hollow portion and opposing the common ground electrode, and an auxiliary discharge electrode including conductive particles dispersed in the base material layer and extending along an inner surface of the hollow portion. At least the auxiliary discharge electrode in an adjacent region between the first discharge electrode and the second discharge electrode is divided into a portion on the first discharge electrode side and a portion on the second discharge electrode side by a non-formation section where the auxiliary discharge electrode is not provided in the hollow portion.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: August 28, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Satoshi Shigematsu
  • Publication number: 20180242337
    Abstract: A convergence pattern selection unit (10A) sequentially generates a plurality of different patterns based on designated initial conditions, selects, as a convergence pattern, a pattern in which evaluation value has converged to an extreme value, and repeatedly executes selection of the convergence pattern by changing the initial conditions every time the convergence pattern is selected. A transmission pattern determination unit (10B) selects, as an optimum transmission pattern, one of the convergence patterns obtained by the convergence pattern selection unit (10A), which has the highest evaluation value. This allows searches for an optimum transmission pattern having a better evaluation value.
    Type: Application
    Filed: August 26, 2015
    Publication date: August 23, 2018
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuri ARIKAWA, Hiroyuki UZAWA, Kenji KAWAI, Satoshi SHIGEMATSU
  • Publication number: 20180212897
    Abstract: An upstream allocation circuit (14) and a downstream allocation circuit (15) are provided in an OLT (1). For example, a superimposed frame obtained by bundling upstream frames (upstream control frames+upstream data frames) from all ONUS is input to the upstream allocation circuit (14) via a frame reproduction circuit (12-1). The superimposed frame may be generated at the stage of optical signals or generated after converting optical signals into electrical signals. The upstream allocation circuit (14) allocates each of the upstream control frames bundled into the superimposed frame to a predetermined PON control circuit (13) based on information (PON port number or LLID) added to the frames. The downstream allocation circuit (15) allocates, to a preset frame reproduction circuit (12), each downstream control frames output from the PON control circuits (13).
    Type: Application
    Filed: July 14, 2016
    Publication date: July 26, 2018
    Inventors: Saki HATTA, Tomoaki KAWAMURA, Kenji KAWAI, Nobuyuki TANAKA, Satoshi SHIGEMATSU, Namiko IKEDA, Shoko OHTERU, Junichi KATO
  • Publication number: 20180192328
    Abstract: A CU (Central Unit) executes scheduling for allocating radio resources of RRUs (Remote Radio Units) to radio transmission of downlink data while broadcasting, to DMs (Data Managers) via MFH, downlink data from MBH. Each DM selects, based on an allocation result obtained by scheduling, the downlink data of an RRU (Remote Radio Unit) corresponding to the self DM from the accumulated downlink data from the CU, and transfers the selected downlink data to the corresponding RRU while discarding the downlink data of other RRUs. Based on the allocation result, each RRU performs radio transmission of the downlink data from the DM to a corresponding UE (User Equipment) using the designated radio resource. This makes it possible to efficiently transfer the downlink data from the CU to each RRU via the MFH constructed by a TDM system represented by TDM-PON.
    Type: Application
    Filed: June 22, 2016
    Publication date: July 5, 2018
    Inventors: Hiroyuki UZAWA, Yuki ARIKAWA, Kenji KAWAI, Satoshi SHIGEMATSU
  • Patent number: 9954617
    Abstract: An OLT (1) is formed by N optical transceivers (11), one PON control circuit (12), and one selection and distribution circuit (13). An optical transceiver selection control signal (SC) is transferred from the PON control circuit (12) to the selection and distribution circuit (13). The optical transceiver selection control signal (SC) indicates the timing of a discovery window, the timing of a grant, and a logical link identification number of a registered ONU assigned to the grant (a logical link identification number for a logical link with the registered ONU). The selection and distribution circuit (13) selects one optical transceiver (11-s (s is an integer falling within a range of 0 to N?1)) from the optical transceivers (11-0 to 11-N?1) based on the optical transceiver selection control signal (SC) from the PON control circuit (12).
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: April 24, 2018
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kenji Kawai, Yuki Arikawa, Tomoaki Kawamura, Nobuyuki Tanaka, Satoshi Shigematsu, Naoki Miura
  • Publication number: 20180062746
    Abstract: A selection and distribution circuit (13) is provided between N optical transceivers (11) and one PON control circuit (12). The selection and distribution circuit (13) selects the optical transceiver (11) corresponding to an upstream frame that time-divisionally arrives, thereby transferring the upstream frame opto-electrically converted by the transceiver (11) to the PON control circuit (12) and distributing a downstream frame from the PON control circuit (12) to each optical transceiver (11). A power supply control circuit (23) stops power supply to at least one of one of optical transceivers (11) that are not used to transfer the frame of the optical transceivers (11) and a circuit that is not used to transfer the frame in the selection and distribution circuit (13). This can reduce the system cost per ONU in the optical transmission system.
    Type: Application
    Filed: March 4, 2016
    Publication date: March 1, 2018
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko OHTERU, Namiko IKEDA, Saki HATTA, Satoshi SHIGEMATSU, Nobuyuki TANAKA, Kenji KAWAI, Junichi KATO, Tomoaki KAWAMURA, Hiroyuki UZAWA, Yuki ARIKAWA, Naoki MIURA
  • Publication number: 20170272167
    Abstract: An OLT (1) is formed by N optical transceivers (11), one PON control circuit (12), and one selection and distribution circuit (13). An optical transceiver selection control signal (SC) is transferred from the PON control circuit (12) to the selection and distribution circuit (13). The optical transceiver selection control signal (SC) indicates the timing of a discovery window, the timing of a grant, and a logical link identification number of a registered ONU assigned to the grant (a logical link identification number for a logical link with the registered ONU). The selection and distribution circuit (13) selects one optical transceiver (11-s (s is an integer falling within a range of 0 to N?1)) from the optical transceivers (11-0 to 11-N?1) based on the optical transceiver selection control signal (SC) from the PON control circuit (12).
    Type: Application
    Filed: August 19, 2015
    Publication date: September 21, 2017
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kenji KAWAI, Yuki ARIKAWA, Tomoaki KAWAMURA, Nobuyuki TANAKA, Satoshi SHIGEMATSU, Naoki MIURA
  • Patent number: 9602212
    Abstract: A communication system and method comprising a higher-network apparatus and a lower-network apparatus connected through a PON system, which transfers uplink data from the lower-network apparatus to the higher-network apparatus at high speed so as to meet severe conditions required for a delay time between the higher-network apparatus and the lower-network apparatus. The method including a scheduling execution process in which a higher-network apparatus performs scheduling for uplink communication from each of the lower-network apparatus to the device itself and an uplink data transmission permission process in which the higher-network apparatus calculates a transmission time and a transmission permission amount of uplink data transmitted from an ONU to OLT based on the scheduling for uplink communication and notifies the OLT.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: March 21, 2017
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shigeru Kuwano, Jun Terada, Noriko Iiyama, Takeshi Sakamoto, Nobuyuki Tanaka, Satoshi Shigematsu
  • Publication number: 20160351327
    Abstract: An ESD protection device includes a multilayer body including base material layers, a hollow portion inside the multilayer body, a ground electrode exposed at the hollow portion, first and second discharge electrodes exposed at the shared hollow portion and opposing the common ground electrode, and an auxiliary discharge electrode including conductive particles dispersed in the base material layer and extending along an inner surface of the hollow portion. At least the auxiliary discharge electrode in an adjacent region between the first discharge electrode and the second discharge electrode is divided into a portion on the first discharge electrode side and a portion on the second discharge electrode side by a non-formation section where the auxiliary discharge electrode is not provided in the hollow portion.
    Type: Application
    Filed: August 15, 2016
    Publication date: December 1, 2016
    Inventor: Satoshi SHIGEMATSU
  • Publication number: 20150311980
    Abstract: This invention provides a communication system constituted of a higher-network apparatus and a lower-network apparatus connected through a PON system, and an object of the invention is to transfer uplink data from the lower-network apparatus to the higher-network apparatus at high speed so as to meet severe conditions required for a delay time between the higher-network apparatus and the lower-network apparatus.
    Type: Application
    Filed: November 6, 2013
    Publication date: October 29, 2015
    Inventors: Shigeru KUWANO, Jun TERADA, Noriko IIYAMA, Takeshi SAKAMOTO, Nobuyuki TANAKA, Satoshi SHIGEMATSU
  • Patent number: 8928279
    Abstract: An electric vehicle structure is provided with a charging port, an electric charging harness and an intermediate connector. The charging port is configured to be provided on a portion of a vehicle. The electric charging harness includes a first wiring portion electrically connected to the charging port and a second wiring portion configured to be connected to an electrical component of the vehicle. The intermediate connector releasably connects the first wiring portion of the electric charging harness to the second wiring portion of the electric charging harness with a repeatable connecting and disconnecting connection.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: January 6, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kiyohito Sekido, Satoshi Shigematsu