Patents by Inventor Hiroki Yamauchi

Hiroki Yamauchi 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).

  • Patent number: 7958240
    Abstract: In a server, an echo-request transmitting unit transmits echo-request data to a target device, and an echo-reply receiving unit receives echo-reply data from the target device. A time measuring unit measures, as the target time, the time required between transmission of the echo-request data and reception of the echo-reply data, and compares the target time with the reference time. In this way, the server judges whether the target device connected to its network belongs to a predetermined group.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: June 7, 2011
    Assignee: Panasonic Corporation
    Inventors: Yuichi Futa, Hiroki Yamauchi, Yuusaku Ohta, Natsume Matsuzaki
  • Patent number: 7925697
    Abstract: In a server, an echo-request transmitting unit 204 transmits echo-request data to a target device, and an echo-reply receiving unit 205 receives echo-reply data from the target device. A time measuring unit 206 measures, as the target time, the time required between transmission of the echo-request data and reception of the echo-reply data, and compares the target time with the reference time. In this way, the server judges whether the target device connected to its network belongs to a predetermined group.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: April 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Yuichi Futa, Hiroki Yamauchi, Yuusaku Ohta, Natsume Matsuzaki
  • Patent number: 7752433
    Abstract: A content management system formed from a playback apparatus that requests and plays content, and a content management apparatus that manages duplication and deletion of content. The playback apparatus notifies group information of the playback apparatus to the content management apparatus, acquires information from the content management apparatus showing whether requests are permitted, and duplicates/deletes content. By judging whether the playback apparatus belongs to a group, and notifying whether a duplication request is permitted or rejected, based on in-group and out-group remaining numbers that show the remaining number of duplications permitted of apparatuses in-group and out-group, respectively, the content management apparatus relaxes restrictions on in-group content duplication as compared with out-group content duplication, and thus improves convenience for users in a home network, while protecting the rights of copyright holders, with respect to content duplication and usage.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: July 6, 2010
    Assignee: Panasonic Corporation
    Inventors: Hiroki Yamauchi, Yuusaku Ohta, Masaya Miyazaki, Natsume Matsuzaki, Toshihisa Abe
  • Patent number: 7585204
    Abstract: A substrate polishing apparatus for polishing a polishing surface of a substrate has a film thickness monitoring device for monitoring a state of a film thickness of a thin film on the polishing surface of the substrate during polishing. The apparatus includes a table, a polishing member fixed on a surface of the table, a substrate support member for pressing the substrate onto the polishing member, an optical system composed of an optical fiber for irradiating the polishing surface of the substrate with a light of irradiation and an optical fiber for receiving a reflected light reflected on the polishing surface of the substrate, an analysis-processing system for processing an analysis of the reflected light received with the optical system, and the film-thickness monitoring device. The table is provided with a liquid-feeding opening for feeding a translucent liquid into a through-hole disposed in the polishing member.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: September 8, 2009
    Assignees: Ebara Corporation, Shimadzu Corporation
    Inventors: Yoichi Kobayashi, Shunsuke Nakai, Hitoshi Tsuji, Yasuo Tsukuda, Hiroki Yamauchi
  • Publication number: 20090191790
    Abstract: A substrate polishing apparatus for polishing a polishing surface of a substrate has a film thickness monitoring device for monitoring a state of a film thickness of a thin film on the polishing surface of the substrate during polishing. The apparatus includes a table, a polishing member fixed on a surface of the table, a substrate support member for pressing the substrate onto the polishing member, an optical system composed of an optical fiber for irradiating the polishing surface of the substrate with a light of irradiation and an optical fiber for receiving a reflected light reflected on the polishing surface of the substrate, an analysis-processing system for processing an analysis of the reflected light received with the optical system, and the film-thickness monitoring device. The table is provided with a liquid-feeding opening for feeding a translucent liquid into a through-hole disposed in the polishing member.
    Type: Application
    Filed: February 17, 2009
    Publication date: July 30, 2009
    Inventors: Yoichi KOBAYASHI, Shunsuke Nakai, Hitoshi Tsuji, Yasuo Tsukuda, Hiroki Yamauchi
  • Publication number: 20090154694
    Abstract: Provided is a content management device, which is connected with a plurality of terminal devices for performing a content moving operation while considering the conveniences of the users of the individual terminal devices. The content management device comprises a content storage unit stored with one or more contents, a move information management unit stored with first range information indicating the partial or entire range of the content to be moved, a range information receiving unit for accepting second range information indicating the range requiring the move, from one terminal device, a judgement unit for deciding whether or not the range indicated by the first range information and the range indicated by the second range information overlap at least partially, and a control unit for permitting the required range to be moved to the terminal device, in case the decision by the judgement unit is NO.
    Type: Application
    Filed: September 11, 2006
    Publication date: June 18, 2009
    Inventors: Hiroki Yamauchi, Takumi Tanabe
  • Patent number: 7539306
    Abstract: A key delivery apparatus that prevents improper use of contents, and manages a decryption key for decrypting encrypted content and a suppliable number showing how many times the decryption key is suppliable, with respect to one or more terminal apparatuses connected to a network. The key delivery apparatus receives a supply request for the decryption key from a terminal apparatus, and if the terminal apparatus is a legitimate supply target, judges whether the terminal apparatus is a first-type that manages a content-usage period or a second-type that does not manage the content-usage period, and if the suppliable number has a remaining number, supplies to the terminal apparatus, the decryption key and a key-usage period of the decryption key when judged that the terminal apparatus is the first-type and the decryption key when judged that the terminal apparatus is the second-type.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: May 26, 2009
    Assignee: Panasonic Corporation
    Inventors: Yuusaku Ohta, Hiroki Yamauchi, Masaya Miyazaki, Natsume Matsuzaki, Toshihisa Abe
  • Publication number: 20090132705
    Abstract: A device registration system including a server which holds content and a terminal apparatus which uses content, whereby the terminal apparatus is registered in the server if a communication time between the terminal apparatus and the server is less than or equal to a reference value. A measuring unit of the server measures the communication time, being a time period from transmitting measuring information to the terminal apparatus until receiving response information from the terminal apparatus, and repeats the transmission, the reception, and the measurement until the measured communication time is less than or equal to the reference value. An elapsed-time measuring unit measures an elapsed time from when the measuring unit first begins measuring the communication time, and a transmission unit transmits, to the terminal apparatus, status notification information showing a processing status which depends on the elapsed time.
    Type: Application
    Filed: January 6, 2005
    Publication date: May 21, 2009
    Inventors: Natsume Matsuzaki, Naoshi Usuki, Hiroyuki Iitsuka, Hiroki Yamauchi
  • Publication number: 20090119719
    Abstract: A device registration system for registering a terminal device for obtaining and using contents in a server that stores contents. The server stores a contents list indicating contents stored and a registration list for registering specific information to the terminal device. The server receives the specific information and transmits the contents list to the terminal device. The terminal device receives a selection of a content from the contents list according to input by a user and requests the server to transmit the selected content. When the specific information to the terminal device of the request source is not registered in the registration list, the server performs a registration process and transmits the requested content to the terminal device.
    Type: Application
    Filed: January 6, 2005
    Publication date: May 7, 2009
    Inventors: Natsume Matsuzaki, Naoshi Usuki, Hiroyuki Iitsuka, Hiroki Yamauchi
  • Patent number: 7510460
    Abstract: A substrate polishing apparatus for polishing a polishing surface of a substrate has a film thickness monitoring device for monitoring a state of a film thickness of a thin film on the polishing surface of the substrate during polishing. The apparatus includes a table, a polishing member fixed on a surface of the table, a substrate support member for pressing the substrate onto the polishing member, an optical system composed of an optical fiber for irradiating the polishing surface of the substrate with a light of irradiation and an optical fiber for receiving a reflected light reflected on the polishing surface of the substrate, an analysis-processing system for processing an analysis of the reflected light received with the optical system, and the film-thickness monitoring device. The table is provided with a liquid-feeding opening for feeding a translucent liquid into a through-hole disposed in the polishing member.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 31, 2009
    Assignees: Ebara Corporation, Shimadzu Corporation
    Inventors: Yoichi Kobayashi, Shunsuke Nakai, Hitoshi Tsuji, Yasuo Tsukuda, Hiroki Yamauchi
  • Publication number: 20090070483
    Abstract: In a server, an echo-request transmitting unit 204 transmits echo-request data to a target device, and an echo-reply receiving unit 205 receives echo-reply data from the target device. A time measuring unit 206 measures, as the target time, the time required between transmission of the echo-request data and reception of the echo-reply data, and compares the target time with the reference time. In this way, the server judges whether the target device connected to its network belongs to a predetermined group.
    Type: Application
    Filed: November 6, 2008
    Publication date: March 12, 2009
    Inventors: Yuichi FUTA, Hiroki Yamauchi, Yuusaku Ohta, Natsume Matsuzaki
  • Patent number: 7457410
    Abstract: A server and a client hold common secret information in respective secret information holding units. A server Cyclic Redundancy Check (CRC) unit in the server generates a CRC code after adding the secret information to communication data, and transmits the communication data with the CRC code attached. A client CRC unit of the client generates a CRC code after adding the secret information to communication data, and checks whether or not an error has occurred in the communication data on the communication path. Since the client holds the secret information, the client determines that an error has not occurred, and obtains the communication data. On the other hand, a router, which does not hold the secret information, is unable to obtain the communication data. This prevents the communication data from being transferred to devices outside an authorized domain.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: November 25, 2008
    Assignee: Panasonic Corporation
    Inventors: Hiroki Yamauchi, Natsume Matsuzaki, Yuusaku Ohta, Yuichi Futa
  • Publication number: 20080196109
    Abstract: When a PC 20 transmits a content request to a device registration apparatus 10 in which a permitted number of devices have already been registered, an expiration time management unit 105 judges whether any registration information registered in a registration list management unit 102 has an exceeded registration expiration time. If registration information with an exceeded registration expiration time is registered in the registration list management unit 102, the registration list management unit 102 deletes this registration information, and newly registers registration information of the PC 20.
    Type: Application
    Filed: July 14, 2005
    Publication date: August 14, 2008
    Inventors: Natsume Matsuzaki, Masaya Miyazaki, Yuichi Futa, Toshihisa Nakano, Hiroki Yamauchi, Soichiro Fujioka, Yuko Tsusaka
  • Publication number: 20080127279
    Abstract: The present invention aims to provide a time authentication device for distinguishing clocks that show a time falling within the predetermined permissible range as compared with a time shown by the time authentication device. In a time authentication device embodied as a distribution device 11, a time-relation information storage unit 104 stores a playback-device-time measured by a clock unit 203 of a playback device 12, and also stores a distribution-device-time measured by a clock unit 103 when the playback-device-time is acquired. The time authentication unit 107 acquires from the playback device 12 a target time measured by the clock unit 203, and also acquires an authentication time measured by the clock unit when the target time is received. The time authentication unit 107 then calculates a first difference (=Authentication Time?Distribution-Device-Time), a second difference (=Target Time?Playback-Device-Time), an authentication difference (=First Difference?Second Difference).
    Type: Application
    Filed: July 13, 2005
    Publication date: May 29, 2008
    Inventors: Yuichi Futa, Natsume Matsuzaki, Hiroki Yamauchi, Toshihisa Nakano
  • Patent number: 7349396
    Abstract: A content distribution system in which content transmission/reception is suppressed when there is a high risk of contents being stolen by a third party during communication. A content server acquires a communication distance indicating how far the content server is from a terminal in data communication. The content server conducts content transmission/reception when the communication distance is less than or equal to a predetermined value, and suppresses content transmission/reception when the communication distance exceeds the predetermined value.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: March 25, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuusaku Ohta, Natsume Matsuzaki, Hiroki Yamauchi, Yuichi Futa
  • Publication number: 20080022416
    Abstract: A content management system which can prevent a content from being copied exceeding the limited number of copies for the content. The content management system includes a first content management device and a second content management device. The first content management device stores period information that indicates an available period during which a first external device is permitted to use a copied content which has been copied from the content, and outputs the period information to the second content management device when the content is moved. Upon receiving the period information from the first content management device, the second content management device judges whether the available period of the copied content has expired, using the received period information, and if it is judges that the available period has not expired, it inhibits the content from being copied to the second external device.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 24, 2008
    Inventors: Hiroki Yamauchi, Natsume Matsuzaki, Yuichi Futa, Toshihisa Nakano
  • Publication number: 20070254565
    Abstract: A substrate polishing apparatus for polishing a polishing surface of a substrate has a film thickness monitoring device for monitoring a state of a film thickness of a thin film on the polishing surface of the substrate during polishing. The apparatus includes a table, a polishing member fixed on a surface of the table, a substrate support member for pressing the substrate onto the polishing member, an optical system composed of an optical fiber for irradiating the polishing surface of the substrate with a light of irradiation and an optical fiber for receiving a reflected light reflected on the polishing surface of the substrate, an analysis-processing system for processing an analysis of the reflected light received with the optical system, and the film-thickness monitoring device. The table is provided with a liquid-feeding opening for feeding a translucent liquid into a through-hole disposed in the polishing member.
    Type: Application
    Filed: May 31, 2007
    Publication date: November 1, 2007
    Inventors: Yoichi Kobayashi, Shunsuke Nakai, Hitoshi Tsuji, Yasuo Tsukuda, Hiroki Yamauchi
  • Patent number: 7241202
    Abstract: A substrate polishing apparatus for polishing a polishing surface of a substrate has a film thickness monitoring device for monitoring a state of a film thickness of a thin film on the polishing surface of the substrate during polishing. The apparatus includes a table, a polishing member fixed on a surface of the table, a substrate support member for pressing the substrate onto the polishing member, an optical system composed of an optical fiber for irradiating the polishing surface of the substrate with a light of irradiation and an optical fiber for receiving a reflected light reflected on the polishing surface of the substrate, an analysis-processing system for processing an analysis of the reflected light received with the optical system, and the film-thickness monitoring device. The table is provided with a liquid-feeding opening for feeding a translucent liquid into a through-hole disposed in the polishing member.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: July 10, 2007
    Assignees: Ebara Corporation, Shimadzu Corporation
    Inventors: Yoichi Kobayashi, Shunsuke Nakai, Hitoshi Tsuji, Yasuo Tsukuda, Hiroki Yamauchi
  • Patent number: 7188224
    Abstract: A highly-convenient content duplication management system for allowing users to duplicate a content as long as the duplication is in compliance with a given usage right. In the system, a request destination device stores a content and a permitted number of duplications of the content. In response to a duplication request, the request destination device judges whether or not the request source device is an in-group device that belongs to the same group as the request destination device. When judging that the request source device is an in-group device, the request destination device transmits the content together with a permitted number that is equal to or smaller than the currently stored permitted number. The request destination device then updates the currently stored permitted number by subtracting the permitted number transmitted.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: March 6, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuusaku Ohta, Hiroki Yamauchi, Masaya Miyazaki, Natsume Matsuzaki, Toshihisa Abe
  • Patent number: 7158637
    Abstract: A security communication packet processing apparatus (100) comprises an encryption processing unit (102) that performs encryption processing and decryption processing in a data block unit of B1 bits, an authentication processing unit (104) that performs authentication processing in a data block unit of B2(=n×B1) bits in parallel to the encryption processing or the decryption processing in the encryption processing unit (102) and outputs an authentication value, a data block accumulation unit (103) that accumulates the data blocks from the encryption processing unit (102) and outputs the data blocks to the authentication processing unit (104) when the accumulated amount of the data blocks reaches B2 bits, a packet construction unit (105) that reconstructs a packet with the data blocks from the encryption processing unit (102) and the authentication value from the authentication processing unit (104), and an encryption and authentication processing control unit (101) that divides the inputted packet into the da
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: January 2, 2007
    Assignee: Matsushita Electric Industrila Co., Ltd.
    Inventors: Yuusaku Ohta, Masashi Yamaguchi, Hiroki Yamauchi