Patents by Inventor Yuji Kojima
Yuji Kojima 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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Publication number: 20120133976Abstract: An information processing apparatus including a hot folder, comprises: a first determination unit configured to determine whether print processing of the job data stored in the hot folder is executable; a printing unit configured to print the job data determined to be executable; a second determination unit configured to determine whether the printing unit has normally ended the print processing of the job data; a specifying unit configured to specify outline information of a status of the print processing of the job data; an acquisition unit configured to acquire detailed information of the status of the print processing of the job data; and a creation unit configured to create a printing status notification file including the outline information of the status of the print processing of the job data specified and the detailed information of the status of the print processing of the job data acquired.Type: ApplicationFiled: November 15, 2011Publication date: May 31, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Yoshihisa Tadokoro, Yousuke Ito, Yuji Kojima
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Publication number: 20120082028Abstract: A method for controlling a load in a base station device, including: receiving load information from another base station; receiving, from the other base station, admission information that indicates that an admission of a process request for the other base station to perform a first process is permitted or rejected; storing history information in which the received load information is associated with the admission information; and determining, on the basis of load information newly received from the other base station and the stored history information, whether to request the other base station to perform a second process that causes a load that is equivalent to or lower than the first process.Type: ApplicationFiled: September 27, 2011Publication date: April 5, 2012Applicant: FUJITSU LIMITEDInventor: Yuji KOJIMA
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Publication number: 20120008581Abstract: In a mobile station which communicates wirelessly with a wireless base station with a plurality of connections established by using part or all of a plurality of frequency bands, a plurality of wireless communication interfaces is associated with the plurality of frequency bands, and a processor makes a sleep request to the wireless base station, acquires from the wireless base station information about a result of scheduling complying with the sleep request and indicating non-sleep intervals of the individual connections and the frequency bands to be used for the respective non-sleep intervals, and performs sleep control on the plurality of wireless communication interfaces in accordance with the acquired information.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicant: FUJITSU LIMITEDInventor: Yuji Kojima
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Publication number: 20110315129Abstract: A connecting passage is formed inside a cylinder head, which extends rearward from an exhaust passage and connects to the exhaust passage. The connecting passage branches inside the cylinder head into two branch passages, which open at a rear end face of the cylinder head, respectively. An opening portion, one of opening portions of the branch passages, connects to an EGR cooler, and another opening portion, the other of opening portions of the branch passages, connects to a bypass pipe. Accordingly, the exhaust gas recirculation device of an engine which can restrain the device from being improperly large sized, providing the EGR cooler and the bypass pipe, can be provided.Type: ApplicationFiled: June 16, 2011Publication date: December 29, 2011Applicant: MAZDA MOTOR CORPORATIONInventors: Yuji KOJIMA, Tomohiro SUNADA, Daijiro ISHIMOTO
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Publication number: 20110299499Abstract: A first base station forms a cell group including a first cell and a second cell partly overlapping with the first cell. A second base station forms a cell group including a third cell and a fourth cell partly overlapping with the third cell. An allocator of a communication control apparatus specifies an identifier for wireless communication that differs from any of wireless communication identifiers already allocated to mobile devices existing within either the first or second cell forming the cell group, and allocates the specified wireless communication identifier to a mobile device existing in the cell group constituted by the first and second cells. A transmitter transmits the identifier allocated by the allocator to the mobile device via the first base station.Type: ApplicationFiled: August 17, 2011Publication date: December 8, 2011Applicant: FUJITSU LIMITEDInventor: Yuji KOJIMA
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Patent number: 8060746Abstract: In a method and a device for transferring an e-mail by a public key cryptography between an e-mail transmission device and an e-mail reception device, a trigger message to which user authentication data and a public key are added is received from a transmitting side client, and trust is assigned to the public key within the trigger message to be transmitted to a receiving side client when the user authentication data within the trigger message are authenticated. In response thereto, a response message to which user authentication data and a public key are added is received from the receiving side client, and trust is assigned to the public key within the response message to be transmitted to the transmitting side client when the user authentication data within the response message are authenticated.Type: GrantFiled: July 21, 2005Date of Patent: November 15, 2011Assignee: Fujitsu LimitedInventor: Yuji Kojima
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Patent number: 7966036Abstract: A wireless LAN device for lessening failure in switching from infrastructure mode to ad-hoc mode. A radio wave coverage storage stores coverage information about coverage of radio waves amongst access points. A terminal information storage stores terminal information about terminals associated with the access points. A packet receiver receives, via the access points, a packet transmitted from any of the terminals in infrastructure mode. An access point acquisition unit looks up the terminal information storage, based on terminal information about originating and destination terminals contained in the packet, to identify access points with which the terminals are associated. A radio wave coverage decision unit looks up the radio wave coverage storage to determine whether the identified access points are within each other's coverage of radio waves. A communication mode switch switches the communication mode of the originating and destination terminals to ad-hoc mode in accordance with the determination result.Type: GrantFiled: March 31, 2006Date of Patent: June 21, 2011Assignee: Fujitsu LimitedInventor: Yuji Kojima
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Publication number: 20110124330Abstract: A radio communication system in which a mobile relay station includes a notification unit configured to notify the mobile station of mobility state information of the mobile relay station determined based on a number of base stations selected within a specified time, and the mobile station includes a base station selection processing unit to select the base station based on the mobility state information when the mobile station switches a device to be communicated with from the mobile relay station to the base station.Type: ApplicationFiled: November 19, 2010Publication date: May 26, 2011Applicant: FUJITSU LIMITEDInventor: Yuji KOJIMA
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Publication number: 20110032860Abstract: A base station in a communication system where mobile stations receive paging announce using a discontinuously received reception frame and the mobile stations receive multicast data as well as the paging announce, in which the mobile stations in idle mode are searched for from among the mobile stations receiving multicast data, the mobile stations located where a paging group to which the searched-for mobile stations belong overlaps an area where the multicast data are distributed are selected from among the searched-for mobile stations, and the base station includes a radio resource allocating unit allocating radio resources to the selected mobile stations, the radio resources being for transmitting uplink signal, and an allocated radio resource information including unit including information of radio resources allocated by the radio resource allocating unit in a radio frame transmitting the multicast data to be transmitted to the selected mobile stations.Type: ApplicationFiled: October 25, 2010Publication date: February 10, 2011Applicant: FUJITSU LIMITEDInventor: Yuji KOJIMA
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Patent number: 7869808Abstract: A wireless communication system which enables fast handovers by eliminating a time lag that occurs during handover process. A new base station recognizes lower layer link switching timing of a mobile station, then adjusts the output timing of a packet transmission initiation message, which triggers packet transmission, so that when a packet is transmitted from a new relay device to the mobile station, the packet may arrive at the mobile station immediately after the lower layer link switching, and sends out the packet transmission initiation message at the adjusted output timing to the new relay device. On receiving the packet transmission initiation message, the new relay device transmits the packet to the mobile station. The mobile station executes the lower layer link switching to complete lower layer handover, and then completes upper layer handover on receiving the packet from the new relay device immediately after the link switching.Type: GrantFiled: November 30, 2006Date of Patent: January 11, 2011Assignee: Fujitsu LimitedInventor: Yuji Kojima
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Publication number: 20100331033Abstract: A wireless communication network system including: a command station for allocating a frequency band, broadcasting a backup station and periodic measurement periods in which a terminal should measure a reception quality, and stopping the allocation of the frequency band to the terminal during the measurement period; one or a plurality of backup stations for synchronizing with the command station and transmitting a measurement signal by using the same frequency channel as that of the command station; and one or a plurality of terminals for measuring a reception quality for each backup station by using the measurement signal.Type: ApplicationFiled: June 28, 2010Publication date: December 30, 2010Applicant: FUJITSU LIMITEDInventor: Yuji KOJIMA
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Publication number: 20100201640Abstract: A touch panel X in accordance with the present invention includes a first base body 10 including a first resistive film 12, a second base body 20 including a second resistive film 22 and a wiring electrodes 23 and 24, and a conductive adhesive member 30 configured to electrically connect the first base body 10 and the wiring electrodes 23 and 24, and bond the first base body 10 and the second base body 20 so that the first resistive film 12 and the second resistive film 22 face each other. The conductive adhesive member 30 defines an internal space S1 and an opening portion M. The wiring electrodes 23 and 24 include connection portions 23a and 24a. The connection portions 23a and 24a are formed in an area corresponding to the opening portion M.Type: ApplicationFiled: August 29, 2008Publication date: August 12, 2010Applicant: KYOCERA CORPORATIONInventors: Junichi Nozawa, Yuji Kojima
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Patent number: 7756468Abstract: A relay apparatus for managing a base station that connects to a mobile station by wireless is disclosed. The relay apparatus includes: an idle mode detection unit configured to detect that the mobile station is in an idle mode; a renewal execution unit configured to execute a renewal process on behalf of the mobile station in the idle mode by communicating messages necessary for the renewal process with a server; and a timer synchronization unit configured to synchronize timers of the mobile station and the server after the mobile station returns to a normal mode from the idle mode.Type: GrantFiled: June 29, 2007Date of Patent: July 13, 2010Assignee: Fujitsu LimitedInventor: Yuji Kojima
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Publication number: 20100137007Abstract: In a system in which a reception (paging) cycle is defined by the number of frames, even if the length of the frames is changed, the power consumption of a mobile station (MS) and a delay in the response at the time of incoming are maintained by changing the paging cycle so that the paging cycles become equal in a time unit. The mobile station for receiving the signal from a wireless base station for each cycle defined by the number of frames to detect an incoming notification has a measurement unit for detecting a change in the frame length of the received frames, a cycle changing unit for, if the change is detected, increasing or decreasing the number of frames which defines the cycle, and an incoming notification monitoring unit for receiving the signal from the wireless base station in accordance with the cycle changed by the cycle changing unit.Type: ApplicationFiled: February 1, 2010Publication date: June 3, 2010Applicant: Fujitsu LimitedInventor: Yuji KOJIMA
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Publication number: 20100110965Abstract: First paging information is determined in advance according to the characteristics of delivered data for each channel of delivered multicast data, and the multicast data delivery frame of each channel is determined based on the first paging information. Paging information (second paging information) for a mobile station which selects a channel is determined from the first paging information determined for each selected channel. Due to this, multicast data delivery frame can be overlapped (is synchronized) with frames for monitoring for paging announcements, and power consumption for an MS in the idle mode can be reduced.Type: ApplicationFiled: January 7, 2010Publication date: May 6, 2010Applicant: FUJITSU LIMITEDInventor: Yuji Kojima
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Publication number: 20100056177Abstract: A mobile communication system includes a first base station and one or more base stations whose information is included in adjacent-base-station information notified by the first base station. The mobile communication system includes a transmitting unit that transmits information on one or more base stations whose information is not included in the adjacent-base-station information to a mobile station, and a position detecting unit that, by using the one or more base stations whose information is not included in the adjacent-base-station information, detects a position of the mobile station.Type: ApplicationFiled: June 19, 2009Publication date: March 4, 2010Applicant: FUJITSU LIMITEDInventor: Yuji KOJIMA
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Publication number: 20100054208Abstract: A base station includes a determining unit that determines whether a competition occurs between an identifier of a first service flow established with respect to a mobile station and an identifier of a second service flow which is requested to newly establish with respect to the mobile station; a changing unit that changes the identifier of the first service flow or the identifier of the second service flow, when the determining unit determines that the competition of the identifiers occurs; and an establishing unit that establishes the second service flow by using the identifier of the second service flow with the competition being eliminated against the first service flow through the change by the changing unit.Type: ApplicationFiled: May 27, 2009Publication date: March 4, 2010Applicant: FUJITSU LIMITEDInventor: Yuji Kojima
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Patent number: 7640227Abstract: A computer-readable recording medium is disclosed that stores a file sharing program causing a computer connected to a network of nodes and sharing a file with the nodes in a decentralized manner to execute a method including the steps of: checking the number of approvals by nodes approving a change application for changing the profile information of the file stored in the storage part of the computer upon receiving the change application; promoting the change application to a change instruction to change the profile information, propagating the change instruction to another node, and changing the profile information, if the number of the approvals by the approving nodes and an approval by the computer exceeds a predetermined amount; and propagating the change application to the other node if the number of the approvals by the approving nodes and the approval by the computer does not exceed the predetermined amount.Type: GrantFiled: October 7, 2005Date of Patent: December 29, 2009Assignee: Fujitsu LimitedInventor: Yuji Kojima
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Publication number: 20090312024Abstract: The teachings of the present disclosure relate to seamless handover between macro base stations and publicly accessible femto base stations that includes determining the location of each of a plurality of femto base stations in the coverage area of a macro base station. A plurality of groups according to the locations of the particular femto base stations are created. The groups are a subset of the plurality of femto base stations. Finally, identification information for one or more of the groups of femto base stations is transmitted to a mobile station in the coverage area of the macro base station.Type: ApplicationFiled: March 2, 2009Publication date: December 17, 2009Applicant: Fujitsu LimitedInventors: Wei-Peng Chen, Chenxi Zhu, Yuji Kojima
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Publication number: 20090310568Abstract: The teachings of the present disclosure relate to seamless handover between macro base stations and publicly accessible femto base stations that includes scheduling a null period in a femto base station's communications activity. The method also includes monitoring mobile station activity during the null period at the femto base station. A candidate mobile station is identified based on the monitoring. An identifier of the candidate mobile station is transmitted from the femto base station to a macro base station. The identifier may be used to initiate handover of service of the candidate mobile station from the macro base station to the femto base station.Type: ApplicationFiled: March 2, 2009Publication date: December 17, 2009Applicant: Fujitsu LimitedInventors: Wei-Peng Chen, Chenxi Zhu, Yuji Kojima