Patents by Inventor Taro Ishikawa

Taro Ishikawa 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: 11600403
    Abstract: The cable according to one embodiment of the invention comprises: one or a plurality of core members, each having a conductor and an insulation cover material covering the conductor; and a sheath layer covering the one or the plurality of core members. The sheath layer comprises an inner sheath layer, and an outer sheath layer covering the inner sheath layer. The inner sheath layer comprises a crosslinked very low density polyethylene. The main component of the outer sheath layer is polyurethane. Relative to 100 parts by mass of resin component in the inner sheath layer, the very low density polyethylene content is between 20 parts by mass and 100 parts by mass inclusive. The elastic modulus of the inner sheath layer at 25° C. is between 5 MPa and 30 MPa inclusive.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: March 7, 2023
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
  • Publication number: 20220388635
    Abstract: Provided is a flight device that can surely perform transformation operations of legs supporting a fuselage base in landing. A flight device 10 includes: a fuselage base 14; a first leg 26 provided on the fuselage base 14 and transformable between a flight state and a landing state; a second leg 27 provided on the fuselage base 14 as a separate body from the first leg 26 and transformable between the flight state and the landing state; a first drive unit 281 and a second drive unit 282 configured to drive transformation operations of the first leg 26 and the second leg 27; and an operation interconnecting mechanism 16 configured to interconnect the first leg 26 and the second leg 27 in terms of operation.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 8, 2022
    Applicant: Ishikawa Energy Research Co., Ltd.
    Inventors: Mitsuru ISHIKAWA, Taro FUKUDA, Takuma TAKEZAWA, Nobuyuki TADA
  • Patent number: 11456090
    Abstract: Provided is an insulated electrical cable including: a core wire made up of at least one insulated wire including a conductor and an insulating layer covering the conductor; an inner sheath layer covering the core wire; and an outer sheath layer covering the inner sheath layer. The inner sheath layer has an elastic modulus A at ?30° C. in a range from 10 MPa to 1000 MPa.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: September 27, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
  • Patent number: 11410789
    Abstract: A core wire for multi-core cables includes a conductor obtained by twisting a plurality of elemental wires, and an insulating layer coated on an outer peripheral surface of the conductor. The insulating layer contains polyethylene-based resin as a main component, and the product of a linear expansion coefficient C1 of the insulating layer in the range of 25° C. to ?35° C. and an elastic modulus E1 at ?35° C., namely (C1×E1), is 0.01 MPaK?1 or more and 0.90 MPaK?1 or less. The melting point of the polyethylene-based resin is 80° C. or higher and 130° C. or lower.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: August 9, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
  • Patent number: 8488585
    Abstract: There is provided a mobile station that minimizes a pause or a silent period during communication at the time of a reconnection process of communication, thereby to improve the user's convenience and achieve the reduction in the load applied onto the communication network or the mobile station. When an out of synchronization detection unit 4 of a mobile station 2 detects out of synchronization, an individual timer value determination unit 53 selects two or more timer value change triggers from timer value change triggers stored in a timer value change trigger memory 51, and then determines the timer values respectively for the timer value change triggers that have been selected, based upon the determination rules stored in an individual timer value determination rule memory 52. A reconnection timer value calculation unit 54 calculates an appropriate reconnection timer value based upon the two or more individual timer values that have been determined by the individual timer value determination unit 53.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: July 16, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Seiko Shimizu, Masayuki Furusawa, Taro Ishikawa, Toshiyuki Futakata
  • Publication number: 20130058278
    Abstract: A mobile communication method according to the present invention includes a step in which the gateway apparatus P-GW transmits “Proxy Binding Acknowledgement containing “O Flag setting information” indicating whether or not a DNSv6 address is allocated to the mobile station UE to the gateway apparatus S-GW in response to the reception of the “Proxy Binding Update”, and a step in which the gateway apparatus S-GW instructs the mobile station UE that there is no need to acquire a DNSv6 address using a DHCP request signal with “O Flag” in RA when the received “O Flag setting information” indicates that a DNSv6 address is allocated to the mobile station UE.
    Type: Application
    Filed: March 31, 2011
    Publication date: March 7, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Katsutoshi Nishida, Koichiro Kunitomo, Taro Ishikawa, Aki Ohashi
  • Publication number: 20110065437
    Abstract: There is provided a mobile station that minimizes a pause or a silent period during communication at the time of a reconnection process of communication, thereby to improve the user's convenience and achieve the reduction in the load applied onto the communication network or the mobile station. When an out of synchronization detection unit 4 of a mobile station 2 detects out of synchronization, an individual timer value determination unit 53 selects two or more timer value change triggers from timer value change triggers stored in a timer value change trigger memory 51, and then determines the timer values respectively for the timer value change triggers that have been selected, based upon the determination rules stored in an individual timer value determination rule memory 52. A reconnection timer value calculation unit 54 calculates an appropriate reconnection timer value based upon the two or more individual timer values that have been determined by the individual timer value determination unit 53.
    Type: Application
    Filed: May 7, 2009
    Publication date: March 17, 2011
    Applicant: NTT Docomo, Inc.
    Inventors: Seiko Shimizu, Masayuki Furusawa, Taro Ishikawa, Toshiyuki Futakata
  • Patent number: 7168022
    Abstract: A first elapsed time from transmission of a data segment until receipt of an acknowledgement is measured. A probability distribution of the first elapsed time is generated for a client device 50 on the basis of the measured first elapsed time. A second elapsed time from retransmission of a data segment until receipt of an acknowledgement is measured. A probability distribution of the second elapsed time is generated for a client device 50 on the basis of the measured first elapsed time. An estimation is made as to whether an acknowledgment pertains to which data segment on the basis of the generated probability distribution.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: January 23, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventors: Motoharu Miyake, Hiroshi Inamura, Taro Ishikawa, Kazuhisa Yokota, Osamu Takahashi
  • Publication number: 20040210665
    Abstract: It is an object of the present invention to execute testing to accurately reproduce problems of a TCP/IP protocol without mistakes without knowledge or skilled techniques of the TCP/IP protocol and reduce effort required for carrying out testing. The traffic generation apparatus 32 sends the test traffic data 55 to the testing server apparatus 41. The response traffic data 57 which is the response data of this test traffic data 55 is processed in a pseudo-communication environment constructed in the communication network emulator apparatus 37 to reproduce problems of the TCP/IP protocol. Settings and control for realizing this reproduction are automatically carried out by the testing control apparatus 44 using predetermined setting information 45a, 45b, 45c and control information 47a, 47b and 47c.
    Type: Application
    Filed: December 18, 2003
    Publication date: October 21, 2004
    Applicant: NTT DoCoMo, Inc.
    Inventors: Tsutomu Fujinami, Hiroshi Inamura, Taro Ishikawa, Motoharu Miyake, Kazuhisa Yokota
  • Publication number: 20040176947
    Abstract: A first elapsed time from transmission of a data segment until receipt of an acknowledgement is measured. A probability distribution of the first elapsed time is generated for a client device 50 on the basis of the measured first elapsed time. A second elapsed time from retransmission of a data segment until receipt of an acknowledgement is measured. A probability distribution of the second elapsed time is generated for a client device 50 on the basis of the measured first elapsed time. An estimation is made as to whether an acknowledgment pertains to which data segment on the basis of the generated probability distribution.
    Type: Application
    Filed: December 22, 2003
    Publication date: September 9, 2004
    Inventors: Motoharu Miyake, Hiroshi Inamura, Taro Ishikawa, Kazuhisa Yokota, Osamu Takahashi
  • Publication number: 20040170129
    Abstract: An object of the present invention is to provide an automatic detecting apparatus for protocol nonconformity in which protocol nonconformity can be detected without necessity of technical knowledge and complex operation.
    Type: Application
    Filed: December 12, 2003
    Publication date: September 2, 2004
    Applicant: NTT DoCoMo, Inc.
    Inventors: Taro Ishikawa, Hiroshi Inamura, Motoharu Miyake, Kazuhisa Yokota, Osamu Takahashi
  • Publication number: 20030114745
    Abstract: In a magnetically shielded room, a cryostat that is filled up with liquid He serving as a coolant and that houses magnetic sensors is installed. A bed for laying down a suspect to be inspected thereon is disposed on a floor surface under the cryostat. After the subject to be inspected is laid down on the bed, the bed is positioned by the inspector. Near the door of the shielded room, an intra-shielded-room operation input device for the inspector to conduct operation on a system control device is provided. A through hole is opened through a part of the wall, and a projector is disposed outside the through hole. An inspection result and so on are projected from the projector onto a wall surface of a partition wall, and used for head positioning and so on.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 19, 2003
    Inventors: Yoshiaki Amano, Mitsuru Oonuma, Taro Ishikawa, Kazunori Yanagisawa, Hitoshi Sasabuchi, Shoji Kondo
  • Publication number: 20020046252
    Abstract: If the requested contents are present in a cache server those contents are sent to the client sending the request but if those contents are not present in the cache server the contents request message with the cache server set as the source is sent to a server, but an address conversion circuit operates to convert the source address of the message into the address of the client that actually issued the request.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 18, 2002
    Inventors: Masahiro Ono, Kazuhiro Okanoue, Hiroshi Mizuki, Osamu Takahashi, Koji Tsurumaki, Hiroshi Inamura, Katsumi Sekiguchi, Taro Ishikawa
  • Patent number: 5938378
    Abstract: The apparatus for boring a web of a section. The apparatus is provided with a boring device which is opposed perpendicular to the web of a clamped section and arm plates for supporting the boring device. The apparatus further has a clamping mechanism for clamping the section from each side thereof along the direction substantially parallel to the rotational axis of the boring device.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: August 17, 1999
    Assignee: Omi Kogyo Co. Ltd.
    Inventors: Shohei Omi, Chikayuki Urashima, Taro Ishikawa