Patents by Inventor Takaaki Sato
Takaaki Sato 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: 20110122841Abstract: A mobile communication system in which a home cell limits access from a first mobile station, and when the first mobile station communicating via a macro cell using the same frequency as the home cell enters a predetermined area near the home cell, the first mobile station is caused to perform handover to a different-frequency macro cell selected from among macro cells covering the predetermined area and using frequencies different from that used in the home cell.Type: ApplicationFiled: March 5, 2009Publication date: May 26, 2011Applicant: NTT DoCoMo, Inc.Inventors: Kenichiro Aoyagi, Takaaki Sato
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Publication number: 20110117913Abstract: A mobile communication method includes a mobile station transmitting a location registration request on the basis of a pilot signal, a network device judging, in response to the received location registration request, whether or not access to a specific radio base station from the mobile station is permitted, the network device rejecting location registration processing when the access is judged not to be permitted, and the network device making a determination so that the transmission power of the pilot signal in the specific radio base station is reduced when the number of rejections of location registration processing exceeds a predetermined number of times.Type: ApplicationFiled: March 31, 2009Publication date: May 19, 2011Applicant: NTT DOCOMO, INC.Inventors: Masafumi Masuda, Kenichiro Aoyagi, Takaaki Sato, Ryoji Yamamoto
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Publication number: 20110092205Abstract: In a position registering method, a radio control station (RNC) transmits report information including a first position number, which has been extracted by using a cell identifier as key information, to the cell identified by the cell identifier. A mobile station (UE) transmits a position registration request when the first position number included in the report information is different from a position number stored in the mobile station: The radio control station (RNC) notifies the first position number and the second position number, which have been extracted by using as the key information the cell identifier for identifying the requester of the position registration request, and a user identifier for identifying the mobile station. An exchange (MSC/SGSN) stores the notified user identifier, first position number, and second position number in association with one another.Type: ApplicationFiled: April 8, 2009Publication date: April 21, 2011Applicant: NTT DOCOMO, INC.Inventors: Masafumi Masuda, Takaaki Sato
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Publication number: 20110070886Abstract: Provided is a mobile communication system configured to permit a cell under a femto radio base station Node B#2 to register a position of a mobile station UE only under the following conditions: [1] the femto radio base station NodeB#2 is set to an open state; [2] the femto radio base station NodeB#2 is set to a closed state and manages an access list in which a mobile station UE is set as an accessible mobile station; or [3] the femto radio base station NodeB#2 is set to the closed state and manages an access list in which particular information indicating all the mobile stations is set as information indicating the accessible mobile stations.Type: ApplicationFiled: February 18, 2009Publication date: March 24, 2011Applicant: NTT DOCOMO, INC.Inventors: Masafumi Masuda, Takaaki Sato, Seizo Onoe
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Patent number: 7907730Abstract: When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover.Type: GrantFiled: February 6, 2009Date of Patent: March 15, 2011Assignee: NTT DoCoMo, Inc.Inventors: Motoshi Tamura, Mutsumaru Miki, Akiko Okamoto, Kenya Kusunose, Akihiro Uchikoshi, Daisuke Igarashi, Katsuhiko Yamagata, Takaaki Sato, Junichiro Hagiwara, Yasuyuki Watanabe, Takuya Hamajima, Masafumi Hata, Nobutaka Ishikawa, Yoshiyuki Yasuda, Kazufumi Yunoki, Nobuhide Uchiyama
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Publication number: 20110059742Abstract: A mobile communication method according to the present invention includes a step A of offering a particular service through a second radio data link established between a mobile station and a cell in the second area in a state in which a first radio data link is not established between the mobile station and a cell in the first area and a step B of suspending the offer of the particular service through the second radio data link when the state in which the first radio data link is not established continues for a predetermined time period.Type: ApplicationFiled: November 7, 2008Publication date: March 10, 2011Inventors: Yuichiro Nakamura, Masafumi Masuda, Takaaki Sato, Takanori Utano
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Publication number: 20110041958Abstract: An acidic chromium-free solution for treating a metal surface containing: a vanadium cation source and/or a vanadyl cation source; an organic acid as an anion source; and at least one oxoacid as another anion source is provided. The oxoacid is selected from oxoacids of nitrogen, sulfur, phosphorus, boron, and chlorine. A metal component composed of, for example, aluminum or magnesium is brought into contact with the chromium-free solution to form a vanadium coating film of a surface of the metal component. A surface treating process using this chromium-free solution is useful for formation of a coating film having low corrosion resistance and low electric resistance.Type: ApplicationFiled: October 27, 2010Publication date: February 24, 2011Applicant: Nihon Hyomen Kagaku Kabushiki KaishaInventors: Takaaki Sato, Misa Suzuki
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Publication number: 20110032905Abstract: A mobile station for communicating with base stations simultaneously in diversity handover. The mobile station monitors radio condition quality corresponding to a plurality of branches, selects one or more addition branch candidates based on the monitored radio condition quality. The mobile station arranges the addition branch candidates in order of the monitored radio condition quality; notifies a center of information on said plurality of branches including said addition branch candidates, the addition branch candidates being notified in the arranged order. Alternatively, the mobile station obtains a relative value of each of the addition branch candidates indicative of order of precedence to be used for the diversity handover based on the monitored radio condition quality of said addition branch candidates; and notifies a center of information on said plurality of branches including said addition branch candidates and their relative values.Type: ApplicationFiled: October 25, 2010Publication date: February 10, 2011Applicant: NTT DoCoMo, Inc.Inventors: Tomoyuki Ohtani, Motoshi Tamura, Takaaki Sato
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Patent number: 7873014Abstract: A handover method for controlling communication between a mobile station and base station(s) in a wireless communication system. The method includes measuring signal qualities transmitted from the base station(s), the measured signal qualities including a measured quality of a signal received from a certain base station; identifying the base station as an addition candidate based on the measured quality exceeding an addition threshold; thereafter detecting that the measured quality of the signal received from the addition candidate has further exceeded an active threshold which is greater than the addition threshold. The active threshold is determined in accordance with a quality of a signal transmitted from one or more active base stations. In response, the base stations are notified of information about the addition candidate; and a handover process is performed on the bases on this information.Type: GrantFiled: October 30, 2007Date of Patent: January 18, 2011Assignee: NTT DoCoMo, Inc.Inventors: Tomoyuki Ohtani, Motoshi Tamura, Takaaki Sato
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Publication number: 20100310707Abstract: An injection molding apparatus is provided that can reduce material waste. An injection molding apparatus 1 is provided with a die 10 having a hot nozzle 20, and a manifold 30 formed by a hot runner 31. A communication passage 11 that is in communication with the cavity 10A is provided in the die 10, and the hot nozzle 20 includes a nozzle body 21 of a cylindrical shape that is inserted in the communication passage 11, and a flange portion 22 that is formed at an end side of this nozzle body 21 and is exposed outside of the communication passage 11, in which a band heater 23 that heats this nozzle body 21 is inserted between the communication passage 11 and the nozzle body 21, and a ring heater 24 that heats this flange 22 is inserted between the communication passage 11 and the flange 22.Type: ApplicationFiled: June 1, 2010Publication date: December 9, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Takaaki SATO, Takashi Kato, Takeshi Kuriyama
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Publication number: 20100309802Abstract: A mobile communication according to the present invention includes a step A of causing the mobile station to judge whether or not the mobile station is allowed to go into a standby mode in a cell corresponding to a predetermined pilot channel when the mobile station detects a predetermined operation made by a user and a step B of causing the mobile station to enter the standby in the cell when the mobile station judges that the mobile station is allowed to be in the standby mode in the cell.Type: ApplicationFiled: November 11, 2008Publication date: December 9, 2010Applicant: NTT DoCoMo, Inc.Inventors: Masafumi Masuda, Takaaki Sato
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Publication number: 20100298002Abstract: A mobile communication method according to the present invention includes a step A of causing a mobile station in a standby mode in a first cell to transmit a communication start request signal, a step B of judging whether or not to measure communication quality of a second cell on the basis of judgment as to whether or not the particular service is provided in each of the cells and judgment as to whether or not communication quality of the second cell is included in the communication start request signal, the second cell overlaid by the first cell in a different frequency band and a step C of starting communication of the mobile station in either one of the first cell and the second cell on the basis of the measured communication quality of the second cell.Type: ApplicationFiled: November 11, 2008Publication date: November 25, 2010Applicant: NTT DoCoMo, Inc.Inventors: Masafumi Masuda, Yasuhiro Kawabe, Takaaki Sato, Ryoji Yamamoto, Katsuhiko Yamagata
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Publication number: 20100291916Abstract: A communication controller and a communication controlling method are provided, even when functionalities of the communication controller included in a communication system such as UTRAN or the like, so that the services of the functionalities are available broadly in the whole system. An RNC 102 for controlling a movable communication terminal device, in cooperation with the communication controller, receives a request for provision of a service.Type: ApplicationFiled: November 16, 2007Publication date: November 18, 2010Inventors: Masafumi Masuda, Yasuhiro Kawabe, Takaaki Sato, Katsuhiko Yamagata
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Publication number: 20100273448Abstract: In a mobile communication system according to the present invention, the mobile communication system is configured to manage a specific mobile station which is allowed to communicate through a CSG cell under the control of a home base station (Home-eNB); and a general mobile station (UE) other than the specific mobile station is configured to be capable of using the CSG cell as a camped cell, only when broadcast information indicating an allowance of a camping in the specific cell is received.Type: ApplicationFiled: October 28, 2008Publication date: October 28, 2010Applicant: NTT DOCOMO, INC.Inventors: Mikio Iwamura, Masafumi Masuda, Takaaki Sato, Takehiro Nakamura
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Publication number: 20100226378Abstract: In a communication system of a subscriber extension line system, there is provided a communication controller whereby the load of an unnecessary process to be applied on a communication controller relating to a destination of a mobile telephone is eliminated and the processing efficiency for communication control is enhanced. In a D-RNC which controls the communication of the mobile telephone and which is commonly connected with an S-RNC, the mobile telephone moves while maintaining the communication with the S-RNC. When the mobile telephone enters a cell relating to the D-RNC, the control data is transmitted or received between the S-RNC and the node for managing the mobile telephone.Type: ApplicationFiled: November 16, 2007Publication date: September 9, 2010Applicant: NTT DoCoMo, Inc.Inventors: Masafumi Masuda, Toyohiro Abe, Takaaki Sato, Katsuhiko Yamagata
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Patent number: 7792531Abstract: When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover.Type: GrantFiled: May 30, 2007Date of Patent: September 7, 2010Assignee: NTT DoCoMo, Inc.Inventors: Motoshi Tamura, Mutsumaru Miki, Akiko Okamoto, Kenya Kusunose, Akihiro Uchikoshi, Daisuke Igarashi, Katsuhiko Yamagata, Takaaki Sato, Junichiro Hagiwara, Yasuyuki Watanabe, Takuya Hamajima, Masafumi Hata, Nobutaka Ishikawa, Yoshiyuki Yasuda, Kazufumi Yunoki, Nobuhide Uchiyama
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Patent number: 7664507Abstract: When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover.Type: GrantFiled: April 6, 2006Date of Patent: February 16, 2010Assignee: NTT DoCoMo, Inc.Inventors: Motoshi Tamura, Mutsumaru Miki, Akiko Okamoto, Kenya Kusunose, Akihiro Uchikoshi, Daisuke Igarashi, Katsuhiko Yamagata, Takaaki Sato, Junichiro Hagiwara, Yasuyuki Watanabe, Takuya Hamajima, Masafumi Hata, Nobutaka Ishikawa, Yoshiyuki Yasuda, Kazufumi Yunoki, Nobuhide Uchiyama
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Publication number: 20100012620Abstract: The wet-processing apparatus includes a wet-step bath in which a wet-step is carried out, and a vibration-type film separator for separating impurities out of a solution used in the wet-step. The wet-processing apparatus further includes a re-supply path through which the solution out of which the impurities were removed by means of the vibration-type film separator is re-supplied to the wet-step bath. Thus, it is possible to reuse a solution and a material of which a pattern is composed. Since the vibration-type film separator is used, it is possible to reduce a frequency of exchanging filters equipped in the vibration-type film separator, and ensure a high rate at which a material of which a pattern is composed is recovered, regardless of a specific gravity of the material.Type: ApplicationFiled: May 26, 2006Publication date: January 21, 2010Applicants: PIONEER CORPORATION, PIONEER PLASMA DISPLAY CORPORATIONInventor: Takaaki Sato
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Patent number: 7630716Abstract: When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover.Type: GrantFiled: February 28, 2007Date of Patent: December 8, 2009Assignee: NTT DoCoMo, Inc.Inventors: Motoshi Tamura, Mutsumaru Miki, Akiko Okamoto, Kenya Kusunose, Akihiro Uchikoshi, Daisuke Igarashi, Katsuhiko Yamagata, Takaaki Sato, Junichiro Hagiwara, Yasuyuki Watanabe, Takuya Hamajima, Masafumi Hata, Nobutaka Ishikawa, Yoshiyuki Yasuda, Kazufumi Yunoki, Nobuhide Uchiyama
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Publication number: 20090246769Abstract: A molecular diagnosis system of ovarian cancers encompasses a detection device configured to obtain a detected value of an expression amount of an apolipoprotein A1 gene in ovarian tissue as a diagnosis subject, a storage device configured to store a normal value of the expression amount of the apolipoprotein A1 gene in normal ovarian tissue, and a determination mechanism configured to determine that the ovarian tissue as the diagnosis subject is clear cell adenocarcinoma when the detected value is lower than the normal value.Type: ApplicationFiled: October 6, 2008Publication date: October 1, 2009Applicants: SHIMADZU CORPORATION, KEIO UNIVERSITYInventors: Takaaki SATO, Tetsuyoshi Sugita, Atsuhiko Toyama, Takashi Shimada, Daisuke Aoki, Atsushi Suzuki, Nobuyuki Susumu, Hiroyuki Nomura