Patents by Inventor Masaaki Yamamoto
Masaaki Yamamoto 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: 8260878Abstract: The user of a mobile station which is prepared to receive information providing services from unspecified IP (Information Providers) accesses a gateway server and performs a pre-registration procedure (S71). When an IP server has information to provide to users, it constructs the information in the form of electronic mail, appends user attribute data, and sends this to the gateway server (S72). Upon receiving electronic mail with attribute data, the gateway server stores the electronic mail in a third mailbox, makes a comparison of the user attributes, and calls the mobile stations of relevant users (S73). A user who has received a call requests a download of the electronic mail from the gateway server (S74). The gateway server sends electronic mail to the mobile station which made the request (S75, S76).Type: GrantFiled: January 20, 2011Date of Patent: September 4, 2012Assignee: NTT DoCoMo, Inc.Inventors: Masaaki Yamamoto, Katsumi Sekiguchi, Masaharu Nakatsuchi, Norihito Sekizaki
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Publication number: 20120118537Abstract: The invention provides a flattened heat pipe whose vapor flowing passage is not clogged and which has an excellent capillary force. The flattened heat pipe has a closed container formed by flattening a tubular container, a plurality of wick structures arrayed within the container in a longitudinal direction so as to form an acute-angled portion where a capillary force is large at least partially within the container, a hollow portion formed of an outer peripheral surface of the wick structure and an inner wall surface of the container and a working fluid sealed into the container.Type: ApplicationFiled: January 20, 2012Publication date: May 17, 2012Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hideaki KAMEOKA, Masanobu Sugimura, Tatsuro Miura, Yasumi Sasaki, Hiroshi Okada, Shinichi Furumoto, Masaaki Yamamoto
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Patent number: 8166291Abstract: Management server 16 may obtain application programs from content server 20 in response to requests of mobile terminal 11. Management server 16 may transmit the obtained application programs to mobile terminal 11 with information concerning reliabilities of the application programs. After mobile terminal 11 receives the application programs from management server 16, mobile terminal 11 manages operations of the application programs. Operations of the application programs are coordinated with operations of other programs using the information concerning the reliabilities corresponding to the application programs. Management of the coordinated operations of the application programs avoids problems concerning information security, where valuable information may be distributed unexpectedly because of operations of low reliable application programs. As a result, convenience of users of mobile terminals 11 can be improved without deteriorating the information security of mobile terminals 11.Type: GrantFiled: May 8, 2008Date of Patent: April 24, 2012Assignee: NTT DoCoMo, Inc.Inventors: Takeshi Natsuno, Masaaki Yamamoto, Satoshi Washio, Hiroshi Kawabata
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Patent number: 8140846Abstract: Management server 16 may obtain application programs from content server 20 in response to requests of mobile terminal 11. Management server 16 may transmit the obtained application programs to mobile terminal 11 with information concerning reliabilities of the application programs. After mobile terminal 11 receives the application programs from management server 16, mobile terminal 11 manages operations of the application programs. Operations of the application programs are coordinated with operations of other programs using the information concerning the reliabilities corresponding to the application programs. Management of the coordinated operations of the application programs avoids problems concerning information security, where valuable information may be distributed unexpectedly because of operations of low reliable application programs. As a result, convenience of users of mobile terminals 11 can be improved without deteriorating the information security of mobile terminals 11.Type: GrantFiled: May 8, 2008Date of Patent: March 20, 2012Assignee: NTT DoCoMo, Inc.Inventors: Takeshi Natsuno, Masaaki Yamamoto, Satoshi Washio, Hiroshi Kawabata
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Publication number: 20120002522Abstract: There is provided a control device including a recording portion that records data on a disk by shining a laser beam onto a recording surface of the disk, a reading portion that reads the data on the disk, a control parameter computation portion that computes a control parameter, a differential computation portion that computes a differential between the control parameter and a value that is set in advance for the disk, a determination portion that determines whether the differential that the differential computation portion has computed is within a range of a dead band, an output value computation portion that computes an output value for the laser beam, an output control portion that controls the laser beam, a storage portion that stores a plurality of combinations of the dead band and the gain, and a selecting portion that selects one of the combinations of the dead band and the gain.Type: ApplicationFiled: June 7, 2011Publication date: January 5, 2012Applicant: Sony CorporationInventor: Masaaki YAMAMOTO
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Publication number: 20110319005Abstract: Peripheral ribs 34A, 34B of a damper plate 30 are raised from at least two sides along an extending direction of a rotation shaft 31 among four sides forming the peripheral portion of the damper plate 30 and have belt-like outer surfaces. When the damper plate 30 is positioned at a position to close a ventilation path 40, the outer surface of the upper peripheral rib 34A becomes parallel with an upper wall surface 13A of the retainer with a narrow clearance therebetween and the outer surface of the lower peripheral rib 34B becomes parallel with a lower wall surface 13B of the retainer with a narrow clearance therebetween.Type: ApplicationFiled: June 25, 2010Publication date: December 29, 2011Inventors: Koji Sawada, Masaaki Yamamoto, Yoshimitsu Hibino
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Publication number: 20110306378Abstract: A plurality of masters continuously receives data through a specific channel to detect whether a slave exists nearby. On the other hand, the slave transmits data for a given period through the specific channel by a trigger specified by a user. A master near the slave receives the data transmitted by the slave and recognizes that the slave exists nearby. After the recognition of the slave, the master performs carrier senses on channels other than the specific channel and transmits data for a given period through a channel on which a carrier does not exist. After the transmission through the specific channel, the slave receives a plurality of channels other than the specific channel to receive the data transmitted by the master.Type: ApplicationFiled: February 25, 2011Publication date: December 15, 2011Inventors: Yuki Himori, Shinichiro Fukushima, Hiroyuki Hamada, Masaaki Yamamoto, Takanori Yamazoe
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Publication number: 20110273174Abstract: A magnetic detection element includes a magnetoresistance effect portion composed of a magnetoresistance effect material and a pair of yoke portions. The pair of yoke portions is composed of a soft magnetic material and are respectively arranged so as to be electrically connected to both sides of the magnetoresistance effect portion. The pair of yoke portions guides magnetic flux into the magnetoresistance effect portion. The magnetic detection element also includes a bypass portion, which is composed of a soft magnetic material and is saturated with magnetic flux at lower magnetic field intensity than the yoke portions, and which guides a part of the magnetic flux generated in the yoke portions so as to divert the magnetic flux from the magnetoresistance effect portion.Type: ApplicationFiled: September 29, 2009Publication date: November 10, 2011Applicant: OMRON CORPORATIONInventors: Hirofumi Imatani, Masaaki Yamamoto, Mamiko Naka, Yasushi Kaneta, Kiwamu Shirakawa
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Patent number: 8010095Abstract: Management server 16 may obtain application programs from content server 20 in response to requests of mobile terminal 11. Management server 16 may transmit the obtained application programs to mobile terminal 11 with information concerning reliabilities of the application programs. After mobile terminal 11 receives the application programs from management server 16, mobile terminal 11 manages operations of the application programs. Operations of the application programs are coordinated with operations of other programs using the information concerning the reliabilities corresponding to the application programs. Management of the coordinated operations of the application programs avoids problems concerning information security, where valuable information may be distributed unexpectedly because of operations of low reliable application programs. As a result, convenience of users of mobile terminals 11 can be improved without deteriorating the information security of mobile terminals 11.Type: GrantFiled: May 8, 2008Date of Patent: August 30, 2011Assignee: NTT DoCoMo, Inc.Inventors: Takeshi Natsuno, Masaaki Yamamoto, Satoshi Washio, Hiroshi Kawabata
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Patent number: 7969842Abstract: A playback device includes a reading section that performs reading from a recording medium, and a control section that acquires the latest temporary management information recorded last on the recording medium. The control section executes a read control process of controlling the reading section so that when reading pointer information in a temporary management information unit recorded last in a temporary management information unit recording area, reading of data is executed from a predetermined position located before a segment in which the pointer information is included, and an information acquiring process of executing a process for acquiring the temporary management information pointed to by the pointer information from the data read in response to the read control process.Type: GrantFiled: March 21, 2008Date of Patent: June 28, 2011Assignee: Sony CorporationInventors: Masaaki Yamamoto, Atsushi Ishimaru, Kenji Yorimoto
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Patent number: 7962744Abstract: Portable terminal MS downloads coupon data and public key KEYP2 of IP server 20 from IP server 20. Service terminal T obtains from IP server 20, a server certificate to which a digital signature is applied by secret key KEYS2. One to one local communication by infrared radiation is performed between portable terminal MS and service terminal T. At this point, portable terminal MS decrypts a server certificate by utilizing public key KEYP2 of IP server 20. Then, portable terminal MS communicates specified data after authenticating the identity of service terminal T.Type: GrantFiled: April 18, 2002Date of Patent: June 14, 2011Assignee: NTT DoCoMo, Inc.Inventors: Masaaki Yamamoto, Yoshiaki Hiramatsu, Satoshi Washio
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Publication number: 20110119349Abstract: The user of a mobile station which is prepared to receive information providing services from unspecified IP (Information Providers) accesses a gateway server and performs a pre-registration procedure (S71). When an IP server has information to provide to users, it constructs the information in the form of electronic mail, appends user attribute data, and sends this to the gateway server (S72). Upon receiving electronic mail with attribute data, the gateway server stores the electronic mail in a third mailbox, makes a comparison of the user attributes, and calls the mobile stations of relevant users (S73). A user who has received a call requests a download of the electronic mail from the gateway server (S74). The gateway server sends electronic mail to the mobile station which made the request (S75, S76).Type: ApplicationFiled: January 20, 2011Publication date: May 19, 2011Inventors: Masaaki Yamamoto, Katsumi Sekiguchi, Masaharu Nakatsuchi, Norihito Sekizaki
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Patent number: 7931935Abstract: This invention provides a process for producing a membrane electrode assembly which has high and stable catalytic activity, and suppressed deterioration in catalytic activity during operation, and can prevent a deterioration in performance attributable to a structural factor of the membrane electrode assembly. The process comprises the step of, after the washing/removing step, drying the catalyst electrode in an atmosphere having a lower oxygen partial pressure than the air. The anode/cathode is a covered catalyst electrode having a structure formed by supporting/depositing a catalytically active material composed mainly of platinum/ruthenium subjected to the potential holding step, the washing/removing step, and the drying step, on a porous electroconductive carrier to cover at least a part of the porous electroconductive carrier with the ion conductive material.Type: GrantFiled: March 17, 2008Date of Patent: April 26, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Masaaki Yamamoto, Wu Mei, Tsuyoshi Kobayashi, Taishi Fukazawa, Itsuko Mizutani, Yoshihiko Nakano
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Patent number: 7902961Abstract: A technology for detecting an RFID by a reader writer and transmitting harmonics for reading and writing the RFID timely without using an object detection sensor is provided. Using a nonlinearity of a rectifier or a demodulator in an IC chip of the RFID, a continuous wave or a modulated wave of two or more different frequencies is output from the reader writer. The RFID receives the continuous wave or the modulated wave of two or more different frequencies and the reader writer receives harmonics intermodulation generated by the rectifier or the demodulator in the IC chip. Therefore, the RFID can be detected without any special object detection sensor, and a modulated wave for reading or writing the RFID can be transmitted.Type: GrantFiled: July 5, 2007Date of Patent: March 8, 2011Assignee: Hitachi, Ltd.Inventors: Takanori Yamazoe, Masaaki Yamamoto, Toshiyuki Kuwana
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Patent number: 7830769Abstract: A recording apparatus that performs at least recording on a recording medium including a user-data recording area, a first temporary-management-information recording area, one or plural second temporary-management-information recording areas, and area-use-state presenting areas includes a recording unit that performs the recording on the recording medium and a controlling unit that controls the recording unit.Type: GrantFiled: May 27, 2008Date of Patent: November 9, 2010Assignee: Sony CorporationInventors: Masaaki Yamamoto, Kenji Yorimoto
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Patent number: 7819992Abstract: A member for water works is proposed in which the content of lead is limited to a very small values while maintaining its mechanical properties, castability, machinability, pressure resistance, etc. to levels equivalent to those of conventional copper alloys containing lead. A copper alloy is produced which contains not less than 2.0% by weight and not more than 5.9% by weight of tin, not less than 1.5% by weight and not more than 5.0% by weight of nickel, not less than 5.0% by weight and not more than 12.1% by weight of zinc, not less than 0.4% by weight and not more than 3.3% by weight of bismuth, and not less than 0.009% by weight and not more than 0.15% by weight of phosphorus, the balance being copper and impurities.Type: GrantFiled: June 20, 2006Date of Patent: October 26, 2010Assignee: Kurimoto, Ltd.Inventors: Masaaki Yamamoto, Yoshimasa Hirai, Hiroaki Maedono, Chizuko Maedono, legal representative
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Publication number: 20100228654Abstract: When an IP (Information Provider) server is accessed from a mobile station, a gateway server determines whether or not the IP server is to be IP billed. If it is not to be IP billed, then user billing is applied. In this case, the gateway server sends a user management number of the mobile station and the number of exchanged packets to a billing system. The billing system calculates a communication fee in accordance with the number of packets, and issues a bill to the user specified by the user management number. On the other hand, if the accessed IP server is to be IP billed, then IP billing is applied. In this case, the gateway server sends the number of exchanged packets and the address of the accessed IP server to the billing system. The billing system calculates a communication fee in accordance with the number of packets, and issues a bill to the IP.Type: ApplicationFiled: March 17, 2010Publication date: September 9, 2010Inventors: Masaaki Yamamoto, Shinji Kobayashi, Kenichi Yakura, Kenichi Yamaguchi
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Patent number: 7742756Abstract: Management server 16 may obtain application programs from content server 20 in response to requests of mobile terminal 11. Management server 16 may transmit the obtained application programs to mobile terminal 11 with information concerning reliabilities of the application programs. After mobile terminal 11 receives the application programs from management server 16, mobile terminal 11 manages operations of the application programs. Operations of the application programs are coordinated with operations of other programs using the information concerning the reliabilities corresponding to the application programs. Management of the coordinated operations of the application programs avoids problems concerning information security, where valuable information may be distributed unexpectedly because of operations of low reliable application programs. As a result, convenience of users of mobile terminals 11 can be improved without deteriorating the information security of mobile terminals 11.Type: GrantFiled: May 8, 2008Date of Patent: June 22, 2010Assignee: NTT DoCoMo, Inc.Inventors: Takeshi Natsuno, Masaaki Yamamoto, Satoshi Washio, Hiroshi Kawabata
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Publication number: 20100134944Abstract: In a magnetic coupler device comprising: a magnetic field generation circuit generating a magnetic field according to an input current; and a detection bridge circuit including a pair of magnetoresistance effect devices, a resistance value of each of the magnetoresistance effect devices changing by applying a magnetic field generated by said magnetic field generation circuit to each of the magnetoresistance effect devices, and having two outputs between which a voltage difference is generated according to an intensity of the magnetic field generated by said magnetic field generation circuit, by forming a geometric shape of each of said magnetic field generation circuit and said detection bridge circuit in line symmetric or point symmetric, a high S/N ratio is obtained even with high frequency.Type: ApplicationFiled: January 31, 2008Publication date: June 3, 2010Applicants: OMRON CORPORATION, THE RESEARCH INSTITUTE FOR ELECTRIC AND MAGNETIC MATERIALSInventors: Masaaki Yamamoto, Yuichi Kariya, Katsuhisa Toshima, Nobukiyo Kobayashi, Takeshi Yano
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Patent number: 7707403Abstract: Included are Gateway server GWS which clocks the precise present time, and portable phone MS which performs a packet communication through gateway server GWS and IP server W. Portable phone MS acquires the time information from gateway server GWS, at the time of starting communication with IP server W and corrects, on the basis of this time information, the clocking present time of its own portable phone MS so that it is more precise. In addition, portable phone MS decodes a public key certificate (an electronic certificate issued by Certificate Office C for the public key certificate of IP server W) using the public key of Certificate Office C. Then the portable phone MS judges whether it is within the validity period specified in the public key certificate, using the corrected present time of its own portable phone MS.Type: GrantFiled: December 11, 2001Date of Patent: April 27, 2010Assignee: NTT DoCoMo, Inc.Inventors: Masaaki Yamamoto, Yoshiaki Hiramatsu, Tatsuaki Wakabayashi, Kazuhiro Takagi