Patents by Inventor Ichiro Okajima

Ichiro Okajima 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).

  • Publication number: 20120058780
    Abstract: A communications system and a communications method that enable to collect location information without imposing a load on the network. In an RNC of a communications system, when a communication controlling module performs communication connection processing to a mobile station among a plurality of mobile stations, a positioning module measures the location of the mobile station and the communication controlling module transmits location information of the mobile station to an exchange when communication is connected with the mobile station. In the exchange, a communication controlling module receives the location information transmitted from the RNC and a storage module stores the received location information. Then, in response to a request from a management center, the exchange transmits the location information stored in the storage module.
    Type: Application
    Filed: March 26, 2010
    Publication date: March 8, 2012
    Applicant: NTT DOCOMO, Inc.
    Inventors: Toshihiro Suzuki, Ichiro Okajima, Hiroshi Kawakami, Takeshi Okamoto, Daisuke Ochi, Yasuyuki Honda, Kengo Yokoyama, Takeshi Terayama, Manhee Jo, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120040649
    Abstract: For easily and quickly collecting data regarding macroscopic population distribution, and easily and quickly obtaining the survey results, an RNC includes: a location registration signal receiver that receives location registration signals, and a signal number counting module that counts the number of the location registration signals for each sector, and an information analyzing apparatus includes: a population distribution calculation module that calculates population distribution information based on the number of the location registration signals; and an output module that outputs the population distribution information.
    Type: Application
    Filed: March 26, 2010
    Publication date: February 16, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Toshihiro Suzuki, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Daisuke Ochi, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120022717
    Abstract: In a taxi user extraction device, an automobile movement extraction unit creates line data of each user, using point data transmitted from mobile terminals, which is stored in a user location information storage unit, and probe data acquired by a probe information acquisition unit, and extracts first line data indicative of movement by automobile from the data. A taxi movement extraction unit extracts second line data, based on the probe data. A taxi use extraction unit extracts data agreeing with the second line data out of the first line data and stores the extracted data as third line data. A taxi using user extraction unit extracts an identifier of mobile terminal having formed the third line data.
    Type: Application
    Filed: April 15, 2010
    Publication date: January 26, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Oyabu, Ichiro Okajima, Hiroshi Kawakami, Toshihiro Suzuki, Tomohiro Nagata, Manhee Jo, Daisuke Ochi, Motonari Kobayashi
  • Patent number: 8036204
    Abstract: In a packet communications system, a control apparatus implements routing control of a received packet directed for the mobile terminal. The mobile terminal includes a plurality of network interface cards; a communication manager configured to select at least one network interface card among from the plurality of network interface cards, in accordance with information regarding the network interface card; and an upper layer manager configured to receive the packet transmitted from the control apparatus, with using a selected network interface card.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: October 11, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Patent number: 8023493
    Abstract: In a packet communications system, a control apparatus implements routing control of a received packet directed for the mobile terminal. The mobile terminal includes a plurality of network interface cards; a communication manager configured to select at least one network interface card among from the plurality of network interface cards, in accordance with information regarding the network interface card; and an upper layer manager configured to receive the packet transmitted from the control apparatus, with using a selected network interface card.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: September 20, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Patent number: 8018915
    Abstract: In a packet communications system, a control apparatus implements routing control of a received packet directed for the mobile terminal. The mobile terminal includes a plurality of network interface cards; a communication manager configured to select at least one network interface card among from the plurality of network interface cards, in accordance with information regarding the network interface card; and an upper layer manager configured to receive the packet transmitted from the control apparatus, with using a selected network interface card.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: September 13, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Publication number: 20110109115
    Abstract: Disclosed is a terminal structure which has a high degree of freedom in selecting the mounting position. A terminal part (18) is affixed to a glass plate (11) with an adhesive (27). A conductive member (19) extends from the terminal part (18) too an object of power supply. The conductive member (19) is flexible.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 12, 2011
    Inventors: Kazuo Yamada, Hideo Yoshizawa, Ichiro Okajima
  • Patent number: 7881250
    Abstract: The present invention provides a packet communication system including a mobile host, a home agent, a correspondent host, and a mobility agent, where the mobility agent operates in such a way that when the mobile host is in an active mode and has no need for buffering packets, the mobility agent forwards packets received from the home agent or the correspondent host to the mobile host; and alternatively, in the case when the mobile host is in an active mode, but requires buffering of packets, the mobility agent buffers the packets, and further in the case when the mobile host is in an idle mode, the mobility agent buffers the packet and notifies the mobile host of arrival of the packet, in order to prevent the loss of a packet addressed to a mobile host thus decreasing the traffic and the transmission frequency of Binding Update packets.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: February 1, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Ichiro Okajima, Takehiro Ikeda, Takuya Shinozaki, Koji Omae
  • Publication number: 20100265859
    Abstract: In a packet communications system, a control apparatus implements routing control of a received packet directed for the mobile terminal. The mobile terminal includes a plurality of network interface cards; a communication manager configured to select at least one network interface card among from the plurality of network interface cards, in accordance with information regarding the network interface card; and an upper layer manager configured to receive the packet transmitted from the control apparatus, with using a selected network interface card.
    Type: Application
    Filed: July 1, 2010
    Publication date: October 21, 2010
    Applicant: NTT DoCoMo, Inc.
    Inventors: Masahiro INOUE, Ichiro Okajima, Narumi Umeda
  • Patent number: 7813329
    Abstract: A base station and a scrambling code setting method of automatically setting up a scrambling code, the base station including a scrambling code setting unit for setting up a base station identifier and a provisional downlink scrambling code that is provisionally assigned; and a transmitting unit for spectrum-spreading the base station identifier by the provisional scrambling code, and for transmitting the base station identifier; wherein the scrambling code setting unit assigns a lasting downlink scrambling code based on a report concerning reception of the base station identifier.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: October 12, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Shinichi Mori, Ichiro Okajima, Narumi Umeda
  • Patent number: 7801070
    Abstract: A mobile communication system comprises a plurality of transfer devices configured to transfer packets to a visited position of a mobile terminal, a plurality of connection management devices arranged in a network and configured to connect to the mobile terminal, and a mobile terminal including a detection unit configured to detect the transfer device, and a communication unit configured to connect to the connection management device, and transmit/receive packets to/from the transfer device detected by the detection unit via the connection management device.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: September 21, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Koji Omae, Ryoichi Kobayashi, Hideaki Takahashi, Takehiro Ikeda, Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Patent number: 7774004
    Abstract: A network system implements paging control in which the control apparatus, upon receiving a packet destined for a mobile terminal, transmits a paging notification packet to a paging area of the mobile terminal, so as to obtain location information of the mobile terminal and to determine a transfer destination of a received packet. The control apparatus is configured to transmit the paging notification packet to a plurality of router devices included in the paging area. Each of the plurality of router devices is configured to transmit a received paging notification packet to a plurality of access points by multicasting. Each of the plurality of access points is configured to transmit a received paging notification packet to the mobile terminal through a link connection by multicasting, when it is judged that an IP address in the paging notification packet is a predetermined IP address.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: August 10, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Patent number: 7668959
    Abstract: There is disclosed a link manager comprises detecting unit for detecting what link is installed; managing unit for defining a plurality of link metrics indicating characteristics of each link detected and managing data corresponding to the respective link metrics on a table; and selecting unit for selecting a link having link metrics complying with a given condition.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: February 23, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Ichiro Okajima, Takehiro Ikeda, Takuya Shinozaki, Koji Omae
  • Publication number: 20090303936
    Abstract: In a packet communications system, a control apparatus implements routing control of a received packet directed for the mobile terminal. The mobile terminal includes a plurality of network interface cards; a communication manager configured to select at least one network interface card among from the plurality of network interface cards, in accordance with information regarding the network interface card; and an upper layer manager configured to receive the packet transmitted from the control apparatus, with using a selected network interface card.
    Type: Application
    Filed: August 20, 2009
    Publication date: December 10, 2009
    Applicant: NTT DoCoMo, Inc.
    Inventors: Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Patent number: 7602718
    Abstract: A packet transmission control apparatus has a packet accumulating unit for buffering a plurality of packets. The apparatus further includes a transmission unit for and for transmitting, to a destination node, a front packet included in the plurality of packets buffered in the packet accumulating unit and for transmitting the remaining packets included in the plurality of packets to the destination node after a lapse of a time period starting from a time point of transmission of the front packet. The time period is equal or greater than a sum of predetermined downstream front packet processing time periods, the sum corresponding to a number of nodes the front packet passes through before reaching the destination node.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: October 13, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Koji Omae, Hideaki Takahashi, Ichiro Okajima, Narumi Umeda
  • Patent number: 7573429
    Abstract: A sheet of glass (rear glass) is provided with a radiation conductor. An electronic circuit unit includes a base plate soldered on the radiation conductor so as to be fixed on the sheet of glass; a frame body which houses a circuit substrate and is screwed on the base plate; and a cover for covering the frame body. The base plate has a narrow section that connects a soldering section and other sections of the base plate. The soldering section is provided with a protrusion that abuts on the radiation conductor such that a solder-accumulation space is formed around the protrusion. Furthermore, the base plate is provided with a plurality of height-adjustment portions disposed at different positions and distant from the soldering section. Each height-adjustment portion has substantially the same dimension as the protrusion.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: August 11, 2009
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tomoki Ikeda, Hideaki Oshima, Makoto Ueda, Ichiro Okajima
  • Patent number: 7567534
    Abstract: A mobile host 2 as an embodiment of the invention comprises a data link layer connection establishment notification unit 202 for notifying the network layer that a connection to a link layer in the data link has been established during a Dormant state; a router information requesting unit 203 for transmitting, in response to the notification by the data link layer connection establishment notification unit 202, a router request signal which requests for transmission of router advertisement information to the access router 3 existing on the access link 4 to which the mobile host is connected; and a network layer movement detection unit 204 for detecting a default router, based on the router advertisement information returned from the access router 3 in response to the router request signal.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: July 28, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Hideaki Takahashi, Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Patent number: 7529214
    Abstract: A communication system includes a MN for transmitting a request for information which specifies a MAP to be used for packet reception and anycast address regarding a plurality of MAPs to a given AR connected to the MN, routers for transmitting the request to a MAP which has a shortest distance from the given AR based on the anycast address transmitted from the given AR, and each of the MAPS for transmitting the information which specifies the MAP to the MN.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: May 5, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Koji Omae, Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Patent number: 7514654
    Abstract: The present invention is intended to provide a glass article with a metal member joined thereto in which an electroconductive coating film is formed on at least a part of the surface of the glass article by baking a silver paste that includes Ag particles and a glass frit, a joining plane of the metal member is fixed onto the electroconductive coating film with a lead-free solder alloy containing Sn as a main component, and the lead-free solder alloy contains at least 1.5 mass % of Ag, which prevents the appearance of the electroconductive coating film and the bonding strength from degrading. Furthermore, in the present invention, when using a metal member having at least two joining planes, the total area of the joining planes is set within a range of 37 mm2 to 50 mm2, which allows high bonding strength between the glass article and metal member to be maintained while using the lead-free solder alloy.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: April 7, 2009
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Ichiro Okajima, Hideki Watanabe, Kazuo Yamada
  • Patent number: 7512120
    Abstract: In a packet communication system 1, 31 (51, 81) comprised of nodes and links, a destination node 3 (53) as a destination of a packet transmitted from correspondent node 2 (52) is provided with an advertisement receiving device 3e (53e) for receiving an advertisement of path information about a path from the correspondent node 2 (52) to the destination node 3 (53); a Path MTU discovery execution determining device 3f (53g) for determining whether a discovery of a Path MTU of the path from correspondent node 2 (52) to destination node 3 (53) should be executed, based on the path information; a Path MTU setting device 3g (53f) for setting the Path MTU on the basis of the path information; and a Path MTU announcing device 3h (53h) for announcing the Path MTU set by the Path MTU setting device 3g (53f).
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: March 31, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Hideaki Takahashi, Koji Omae, Ichiro Okajima, Narumi Umeda