Patents by Inventor Yoshihiro Fujii

Yoshihiro Fujii 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: 20110278791
    Abstract: A multifeed processing apparatus includes a control unit and is connected to a multifeed detecting mechanism and an image reading mechanism. The control unit includes (i) a calculating unit that calculates a shape of a peripheral edge of a medium from any one or both of an output of the image reading mechanism and an image of the medium read by the image reading mechanism, (ii) a detecting unit that detects a change in the shape on a boundary of an overlap detected portion, from the shape calculated by the calculating unit and a position of the overlap detected portion detected by the multifeed detecting mechanism, and (iii) a deciding unit that determines a case where the change in the shape is detected by the detecting unit, as a multifeed.
    Type: Application
    Filed: March 9, 2011
    Publication date: November 17, 2011
    Inventors: Yoshihiro FUJII, Shinji Suzuki
  • Patent number: 8028330
    Abstract: A client apparatus transmits environmental information acquired from an environmental information acquisition device as well as a biometric authentication information matching result to a server apparatus. The server apparatus verifies the validity of the environmental information such as a luminance as well as the validity of the biometric authentication information matching result. If an environment is problematic, the server apparatus notifies the client apparatus that the environmental information is problematic. The client apparatus overcomes the problem of the environment such as the luminance based on the notification from the server apparatus and then retries a biometric authentication. The possibility of re-failure due to the environmental problem can be reduced during a retry of the biometric authentication.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: September 27, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions Corporation
    Inventors: Yoshihiro Fujii, Minoru Nishizawa, Tatsuro Ikeda, Koji Okada, Tomoaki Morijiri, Hidehisa Takamizawa, Asahiko Yamada
  • Publication number: 20110185413
    Abstract: A client apparatus transmits environmental information acquired from an environmental information acquisition device as well as a biometric authentication information matching result to a server apparatus. The server apparatus verifies the validity of the environmental information such as a luminance as well as the validity of the biometric authentication information matching result. If an environment is problematic, the server apparatus notifies the client apparatus that the environmental information is problematic. The client apparatus overcomes the problem of the environment such as the luminance based on the notification from the server apparatus and then retries a biometric authentication. The possibility of re-failure due to the environmental problem can be reduced during a retry of the biometric authentication.
    Type: Application
    Filed: April 6, 2011
    Publication date: July 28, 2011
    Inventors: YOSHIHIRO FUJII, Minoru Nishizawa, Tatsuro Ikeda, Koji Okada, Tomoaki Morijiri, Hidehisa Takamizawa, Asahiko Yamada
  • Patent number: 7913091
    Abstract: Upon receiving server side entity information and a principal confirmation profile request data from a server side entity device, a consolidation apparatus transmits an entity information transmission request to each of a plurality of client side entity devices and receives client side entity information from each of the client side entity devices. Then, it determines the principal confirmation profile ID in each piece of client side entity information and the principal confirmation profile ID in the server side entity information according to the principal confirmation profile ID request information having the highest priority in the principal confirmation profile request data and prepares a routing table information associating the processing capability IDs and the entity IDs corresponding to the determined principal confirmation profile ID, which routing table information is then stored in a memory.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 22, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions Corporation
    Inventors: Minoru Nishizawa, Hidehisa Takamizawa, Yoshihiro Fujii, Koji Okada
  • Publication number: 20100191967
    Abstract: A client apparatus receives a message including a random number from a server apparatus during the handshake of agreement process, creates a biometric negotiation message including the biometric authentication method information and sends the biometric negotiation message to the server apparatus. Then, the client apparatus executes a biometric authentication based on biometric authentication method information notified from the server apparatus and encrypts the random number based on the private key. In addition, the client apparatus generates an authenticator from a result of the biometric authentication, the biometric authentication method information, the encrypted random number, and the client certificate, and sends to the server apparatus an authentication context including these. The server apparatus verifies the authentication context and establishes a secure session in one handshake.
    Type: Application
    Filed: February 12, 2010
    Publication date: July 29, 2010
    Inventors: Yoshihiro FUJII, Tatsuro Ikeda, Koji Okada, Tomoaki Morijiri, Minoru Nishizawa, Hidehisa Takamizawa, Asahiko Yamada
  • Publication number: 20100180124
    Abstract: According to one embodiment of the present invention, the first authentication context includes the template certificate indicative of the validity of a template and the first apparatus evaluation certificate indicative of the validity of the first apparatus evaluating information whilst the second authentication context includes the second apparatus evaluating certificate indicative of the validity of the second apparatus evaluating information. And the template certificate and the first and second evaluation certificates are verified when verifying the first and second authentication contexts. Thus, the validity of the template used for authentication or the apparatus evaluating information included in the authentication context can be verified.
    Type: Application
    Filed: January 28, 2010
    Publication date: July 15, 2010
    Inventors: Tomoaki Morijiri, Koji Okada, Tatsuro Ikeda, Minoru Nishizawa, Hidehisa Takamizawa, Yoshihiro Fujii, Asahiko Yamada
  • Publication number: 20100022026
    Abstract: Certain embodiments disclosed herein are directed to methods and kits for detecting and quantifying in patient peritoneal fluid, such as spent peritoneal dialysis buffer, peptides having amino acid sequences related to megakaryocyte potentiating factor. The methods and kits can be used to monitor the biological status of the mesothelial lining of the peritoneal cavity in a patient, to predict development of a pathology of the mesothelium in an otherwise asymptomatic patient, and/or to assess the risk and suitability of a therapeutic method. In particular, the method can be used to assess negative effects of peritoneal dialysis on the biological integrity of the peritoneum, and thus to determine the time point when peritoneal dialysis treatment should be discontinued in favor of hemodialysis in a patient with kidney dysfunction, in order to avoid the development of peritoneal hypertrophy and other progressive mesothelial disorders such as encapsulating peritoneal sclerosis.
    Type: Application
    Filed: June 19, 2009
    Publication date: January 28, 2010
    Inventors: Armin Rump, Yoshihiro Fujii
  • Publication number: 20090327706
    Abstract: A root-account management apparatus generates an electronic signature based on a survival condition and a secret key when an authentication result of a user of a client apparatus is proper, and transmits derived-account credence element information including the survival condition, the electronic signature and a public key certificate to a derived-account management apparatus. The derived-account management apparatus creates derived-account information which becomes valid when the survival condition is satisfied so that the derived-account information includes both the derived-account credence element information which becomes invalid when a validity term of the public key certificate expires and a biometric information template of the user which is valid regardless of this validity term. Accordingly, even if an authentication element as a root (public key certificate) becomes invalid, a derived authentication element (biometric information template) can be prevented from becoming invalid.
    Type: Application
    Filed: July 10, 2009
    Publication date: December 31, 2009
    Inventors: Tatsuro IKEDA, Koji Okada, Tomoaki Morijiri, Minoru Nishizawa, Hidehisa Takamizawa, Yoshihiro Fujii, Asahiko Yamada
  • Publication number: 20090144543
    Abstract: A secret sharing device of (k, n) threshold scheme creates a generator matrix G, first divided secret data, and random number data, calculates shared partial data based on the product of matrices with the random number data, the divided secret data, and the generator matrix G, and delivers the shared information formed by the shared partial data and the header information individually to the storage units. The secret sharing device calculates a recovery matrix and multiplies the shared information by the recovery matrix, hence to recover the secret information.
    Type: Application
    Filed: May 2, 2008
    Publication date: June 4, 2009
    Inventors: Yoshihiro Fujii, Norikazu Hosaka, Minako Tada, Takehisa Kato
  • Publication number: 20080304661
    Abstract: A content distribution/browsing system is disclosed. First to (m?1)th encrypted content items E(K1, C1?K2,1), . . . , E(Km?1, Cm?1?Km,1) contain second to m-th (next in order) sharing keys K2,1, . . . , Km,1, respectively. When desirous of browsing an (i+1)th content item Ci+1, the (i+1)th sharing key Ki+1,1 is acquired by browsing an immediately preceding i-th content item Ci.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Inventors: Takehisa KATO, Koji Okada, Norikazu Hosaka, Yoshihiro Fujii, Minako Tada
  • Publication number: 20080232580
    Abstract: A secret sharing apparatus according to the present invention is based on a (k,n)-threshold scheme with a threshold of at least 4. The secret sharing apparatus generates a generator matrix (G) of GF(2) in which any k of n column vectors are at a full rank, divides secret information into n?1 pieces to generate divided secret data (K(1), . . . , K(n?1)), generates random data (U(0,1), . . . , U(k?2,n?1)), calculates the product of matrixes of the divided secret data, the random data, and the generator matrix (G), assigns the j×(n?1)+ith column of the calculation result to sharing partial data (D(j,i)) to calculate sharing partial data (D(j,1)), generates header information (H(j)), and individually distributes n pieces of sharing information (D(0), . . . , D(n?1)) made up of the header information (H(j)) and sharing partial data (D(j,i)) to n storage apparatuses.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Inventors: Norikazu HOSAKA, Yoshihiro Fujii, Minako Tada, Takehisa Kato
  • Publication number: 20080229405
    Abstract: A communication system including many communication terminals and a management apparatus interconnected via a network. The apparatus includes: a section which processes user authentication in response to an operation by a user using any one of the communication terminals, a first information management section for managing authenticated user information in association with terminal information about the communication terminal used by the user, a second information management section for managing communication information including the user information about many users with intent to communicate with one another, and a connection control section.
    Type: Application
    Filed: February 26, 2008
    Publication date: September 18, 2008
    Inventor: Yoshihiro FUJII
  • Publication number: 20080172729
    Abstract: An authentication device receives each authentication context including an output information block, an input information block, and an authenticator block. The output information block includes a process result and process result identification information. The input information block includes a process result and process result identification information. The authentication device verifies each authenticator block. The authentication device searches for the output information block having the same value of process result identification information as the value of process result identification information in the input information block from other authentication contexts based on process result identification information in the input information block included in each authentication context.
    Type: Application
    Filed: August 17, 2007
    Publication date: July 17, 2008
    Inventors: Hidehisa TAKAMIZAWA, Asahiko YAMADA, Tomoaki MORIJIRI, Koji OKADA, Tatsuro IKEDA, Minoru NISHIZAWA, Yoshihiro FUJII
  • Publication number: 20080172725
    Abstract: A client apparatus transmits environmental information acquired from an environmental information acquisition device as well as a biometric authentication information matching result to a server apparatus. The server apparatus verifies the validity of the environmental information such as a luminance as well as the validity of the biometric authentication information matching result. If an environment is problematic, the server apparatus notifies the client apparatus that the environmental information is problematic. The client apparatus overcomes the problem of the environment such as the luminance based on the notification from the server apparatus and then retries a biometric authentication. The possibility of re-failure due to the environmental problem can be reduced during a retry of the biometric authentication.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 17, 2008
    Inventors: Yoshihiro FUJII, Minoru Nishizawa, Tatsuro Ikeda, Koji Okada, Tomoaki Morijiri, Hidehisa Takamizawa, Asahiko Yamada
  • Publication number: 20080168534
    Abstract: A configuration including, in authentication contexts, function unit identification information unique to the function unit that has executed an authentication subprocess in entity devices permits an authentication apparatus to specify the function unit that has executed the authentication subprocess in the entity devices. The verifier, therefore, can verify the legitimacy of the authentication subprocess from the authentication context even in the presence of a plurality of function units capable of executing the same authentication subprocess in the entity devices.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 10, 2008
    Inventors: Hidehisa TAKAMIZAWA, Koji Okada, Tomoaki Morijiri, Tatsuro Ikeda, Minoru Nishizawa, Yoshihiro Fujii, Asahiko Yamada
  • Publication number: 20070283164
    Abstract: Upon receiving server side entity information and a principal confirmation profile request data from a server side entity device, a consolidation apparatus transmits an entity information transmission request to each of a plurality of client side entity devices and receives client side entity information from each of the client side entity devices. Then, it determines the principal confirmation profile ID in each piece of client side entity information and the principal confirmation profile ID in the server side entity information according to the principal confirmation profile ID request information having the highest priority in the principal confirmation profile request data and prepares a routing table information associating the processing capability IDs and the entity IDs corresponding to the determined principal confirmation profile ID, which routing table information is then stored in a memory.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 6, 2007
    Inventors: Minoru NISHIZAWA, Hidehisa Takamizawa, Yoshihiro Fujii, Koji Okada
  • Patent number: 7300560
    Abstract: A cathode block for aluminum refining containing a calcined coke in a proportion of 15 to 100 wt %, characterized in that the calcined coke is prepared by mixing a heavy oil having a content of quinoline insoluble components of 10 to 25 wt % with 3 to 20 wt % of carbon black, and subjecting the resultant mixture to coking and then calcination. The cathode block for aluminum refining is excellent in resistance to abrasion and thus has a prolonged life.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 27, 2007
    Assignee: Nippon Electrode Company, Ltd.
    Inventors: Yuji Yamamura, Yoshihiro Fujii, Tsutomu Wakasa, Shinjiro Toda
  • Publication number: 20060131169
    Abstract: A cathode block for aluminum refining containing a calcined coke in a proportion of 15 to 100 wt %, characterized in that the calcined coke is prepared by mixing a heavy oil having a content of quinoline insoluble components of 10 to 25 wt % with 3 to 20 wt % of carbon black, and subjecting the resultant mixture to coking and then calcination. The cathode block for aluminum refining is excellent in resistance to abrasion and thus has a prolonged life.
    Type: Application
    Filed: February 28, 2003
    Publication date: June 22, 2006
    Inventors: Yuji Yamamura, Yoshihiro Fujii, Tsutomu Wakasa, Shinjiro Toda
  • Patent number: 6187452
    Abstract: An ultrathin stainless steel foil of a thickness of 25 &mgr;m or less whose average number of inclusions of a major diameter of 5 &mgr;m or greater per 1 mm2 in sections along the rolling direction is 3 or less. The ultrathin stainless steel foil is not readily susceptible to the local tunnel-like corrosions (voids) that have occasionally occurred, during etching, together with cracking in the rolling direction from the edges.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: February 13, 2001
    Assignee: Nippon Steel Corporation
    Inventors: Izumi Muto, Michio Nakata, Yoshihiro Fujii, Kenji Hirashima, Shuji Nagasaki, Jun Nakatsuka, Tsuyoshi Nakano
  • Patent number: 4367070
    Abstract: A process for treating a fibrous structure is provided. The fibrous structure comprises at least two components at least one of which is a polyester containing an SO.sub.3 M group wherein M represents hydrogen or an alkali metal. The process is characterized in that the fibrous structure is treated with an agent which deteriorates the polyester prior to the alkali treatment for the removal of the polyester component.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: January 4, 1983
    Assignee: Toray Industries, Inc.
    Inventors: Kazuya Hayashi, Masato Shimada, Teruo Nakamura, Yoshihiro Fujii