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).
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Patent number: 11600403Abstract: 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: GrantFiled: August 6, 2018Date of Patent: March 7, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
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Publication number: 20220388635Abstract: 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: ApplicationFiled: October 27, 2020Publication date: December 8, 2022Applicant: Ishikawa Energy Research Co., Ltd.Inventors: Mitsuru ISHIKAWA, Taro FUKUDA, Takuma TAKEZAWA, Nobuyuki TADA
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Patent number: 11456090Abstract: 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: GrantFiled: July 19, 2019Date of Patent: September 27, 2022Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
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Patent number: 11410789Abstract: 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: GrantFiled: July 15, 2021Date of Patent: August 9, 2022Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
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Patent number: 8488585Abstract: 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: GrantFiled: May 7, 2009Date of Patent: July 16, 2013Assignee: NTT DoCoMo, Inc.Inventors: Seiko Shimizu, Masayuki Furusawa, Taro Ishikawa, Toshiyuki Futakata
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Publication number: 20130058278Abstract: 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: ApplicationFiled: March 31, 2011Publication date: March 7, 2013Applicant: NTT DOCOMO, INC.Inventors: Katsutoshi Nishida, Koichiro Kunitomo, Taro Ishikawa, Aki Ohashi
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Publication number: 20110065437Abstract: 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: ApplicationFiled: May 7, 2009Publication date: March 17, 2011Applicant: NTT Docomo, Inc.Inventors: Seiko Shimizu, Masayuki Furusawa, Taro Ishikawa, Toshiyuki Futakata
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Patent number: 7168022Abstract: 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: GrantFiled: December 22, 2003Date of Patent: January 23, 2007Assignee: NTT DoCoMo, Inc.Inventors: Motoharu Miyake, Hiroshi Inamura, Taro Ishikawa, Kazuhisa Yokota, Osamu Takahashi
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Publication number: 20040210665Abstract: 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: ApplicationFiled: December 18, 2003Publication date: October 21, 2004Applicant: NTT DoCoMo, Inc.Inventors: Tsutomu Fujinami, Hiroshi Inamura, Taro Ishikawa, Motoharu Miyake, Kazuhisa Yokota
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Publication number: 20040176947Abstract: 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: ApplicationFiled: December 22, 2003Publication date: September 9, 2004Inventors: Motoharu Miyake, Hiroshi Inamura, Taro Ishikawa, Kazuhisa Yokota, Osamu Takahashi
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Publication number: 20040170129Abstract: 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: ApplicationFiled: December 12, 2003Publication date: September 2, 2004Applicant: NTT DoCoMo, Inc.Inventors: Taro Ishikawa, Hiroshi Inamura, Motoharu Miyake, Kazuhisa Yokota, Osamu Takahashi
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Publication number: 20030114745Abstract: 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: ApplicationFiled: November 14, 2002Publication date: June 19, 2003Inventors: Yoshiaki Amano, Mitsuru Oonuma, Taro Ishikawa, Kazunori Yanagisawa, Hitoshi Sasabuchi, Shoji Kondo
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Publication number: 20020046252Abstract: 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: ApplicationFiled: October 15, 2001Publication date: April 18, 2002Inventors: Masahiro Ono, Kazuhiro Okanoue, Hiroshi Mizuki, Osamu Takahashi, Koji Tsurumaki, Hiroshi Inamura, Katsumi Sekiguchi, Taro Ishikawa
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Patent number: 5938378Abstract: 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: GrantFiled: July 9, 1997Date of Patent: August 17, 1999Assignee: Omi Kogyo Co. Ltd.Inventors: Shohei Omi, Chikayuki Urashima, Taro Ishikawa