Patents by Inventor Kensaku Mori

Kensaku Mori 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: 8306919
    Abstract: Between an IC card (1) and a electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: November 6, 2012
    Assignees: NTT DoCoMo, Inc.
    Inventors: Ken Sakamura, Noboru Koshizuka, Hiroshi Aono, Kazuhiko Ishii, Kensaku Mori, Sadayuki Hongo
  • Publication number: 20120276454
    Abstract: Disclosed are: nickel complex hydroxide particles that have small and uniform particle diameters; and a method by which the nickel complex hydroxide particles can be produced. Specifically disclosed is a method for producing a nickel complex hydroxide by a crystallization reaction, which comprises: a nucleation step in which nucleation is carried out, while controlling an aqueous solution for nucleation containing an ammonium ion supplying material and a metal compound that contains nickel to have a pH of 12.0-13.4 at a liquid temperature of 25° C.; and a particle growth step in which nuclei are grown, while controlling an aqueous solution for particle growth containing the nuclei, which have been formed in the nucleation step, to have a pH of 10.5-12.0 at a liquid temperature of 25° C. In this connection, the pH in the particle growth step is controlled to be less than the pH in the nucleation step.
    Type: Application
    Filed: December 2, 2010
    Publication date: November 1, 2012
    Inventors: Kensaku Mori, Shin Imaizumi, Rei Kokado
  • Publication number: 20120270107
    Abstract: An object of the present invention is to provide nickel cobalt manganese composite hydroxide particles having a small particle diameter and a uniform particle size distribution, and a method for producing the same. [Solution] A method for producing a nickel cobalt manganese composite hydroxide by a crystallization reaction is provided. The method includes: a nucleation step of performing nucleation by controlling a pH of an aqueous solution for nucleation including metal compounds containing nickel, cobalt and manganese, and an ammonium ion donor to 12.0 to 14.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard; and a particle growth step of growing nuclei by controlling a pH of an aqueous solution for particle growth containing nuclei formed in the nucleation step to 10.5 to 12.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard.
    Type: Application
    Filed: December 2, 2010
    Publication date: October 25, 2012
    Inventors: Hiroyuki Toya, Shin Imaizumi, Kensaku Mori, Atsushi Fukui, Kenji Ikeuchi, Kazuomi Ryoshi, Toshiyuki Osako, Hiroki Nagai
  • Patent number: 8199984
    Abstract: Medical image observation assisting system 1 including CT-image-data retrieving portion 10, CT-image-data storing portion 11, information extracting portion 12, anatomical information DB13, point of view/line of view setting portion 14, luminal organ image generating portion 15, anatomical nomenclature information generating portion 16, branch specifying portion 17, image synthesizing and displaying portion 18 and user I/F control portion 19. The point of view/line of view setting portion 14 sets a point of view and line of view for observing an external profile of a luminal organ, on the basis of structure information of the luminal organ extracted by the information extracting portion 12, while a point of interest is kept substantially on a centerline of the organ.
    Type: Grant
    Filed: February 17, 2007
    Date of Patent: June 12, 2012
    Assignee: National University Corporation Nagoya University
    Inventors: Kensaku Mori, Takayuki Kitasaka, Daisuke Deguchi
  • Patent number: 8161499
    Abstract: A data processing method using a data processing apparatus on a transmitting side having an application for performing processing using an internal device set in the data processing apparatus, a driver that accepts an access request to the internal device from the application, a handler that performs access processing to the internal device and transmitting a message to an external device set outside the data processing apparatus, and a storage device that stores a device ID as a transmission destination for specifying the internal or external device and the handler in association with each other, and a data processing apparatus on a receiving side that receives the message transmitted from the data processing apparatus on the transmitting side.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: April 17, 2012
    Assignees: NTT DoCoMo, Inc.
    Inventors: Ken Sakamura, Noboru Koshizuka, Masayuki Terada, Kensaku Mori, Kazuhiko Ishii, Sadayuki Hongo
  • Patent number: 8122261
    Abstract: Realizing a data communication device and a data communication method enabling to specify an IC memory mounted in the communication device and to perform data communication to the communication device in which the IC memory is mounted. A mobile device 100 of transmitting side accepts a domain ID specifying a detachable IC memory uniquely from an application 102, a communication driver 105 obtains an IP address of the device of correspondent on the basis of the accepted domain ID from a name server 300 storing the domain ID and the IP address being associated with each other. Then, the communication driver 105 obtains a port ID which an IC memory of the device of correspondent assigned to an application, and transmits the domain ID and the port ID together with a transmission data to the IP address. The device of correspondent rims the application based on the received port ID and executes an appropriate processing.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: February 21, 2012
    Assignees: NTT DoCoMo, Inc., Ken Sakamura, Noboru Koshizuka
    Inventors: Ken Sakamura, Noboru Koshizuka, Masayuki Terada, Kensaku Mori, Kazuhiko Ishii, Sadayuki Hongo
  • Patent number: 8083972
    Abstract: A copper particulate dispersion containing copper particulates coated with water-soluble polymers and hydroxycarboxylic acid; hydroxycarboxylic acid; and polyhydric alcohol and/or a polar solvent. The copper particulate dispersion is produced by adding hydroxycarboxylic acid such as malic acid, citric acid, and the like or a solution thereof into a dispersion containing a polar solvent and copper particulates coated with water-soluble polymers, and stirring the obtained dispersion so that part of water-soluble polymers are substituted by hydroxycarboxylic acid; discharging released water-soluble polymers from the dispersion by ultrafiltration; and subsequently adding hydroxycarboxylic acid, polyhydric alcohol and/or a polar solvent, into the dispersion.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: December 27, 2011
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Kensaku Mori, Shintarou Okamoto, Hiroko Nakata
  • Patent number: 7976732
    Abstract: An electroconductive composition including a mixture of a copper powder having an averaged particle size between 0.3 and 20 ?m and a copper fine powder having an averaged particle size between 1 and 50 nm; a solvent comprising a multivalent alcohol, such as ethylene glycol or diethylene glycol, having two or more OH groups; and an additive comprising a compound such as malic acid or citric acid having two or more COOH groups and one or more OH groups where the number of COOH groups is equal to or greater than the number of OH groups.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: July 12, 2011
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Keiji Kamada, Kensaku Mori
  • Patent number: 7975029
    Abstract: A Terminal equipment 10 has a message information accepter 12 for accepting message information from terminal program 26, an ID generator 14 for generating a thread ID for identifying the message information, a transmitter 16 for generating a message containing the message information and the thread ID and for transmitting the message to IC card 24, and a receiver 18 for receiving a message from the IC card 24. When the message received from the IC card 24 contains the thread ID inserted in the transmitted message, the message information accepter 12 returns the received message as a return value for the message information to the terminal program 26 and terminates a process attributed to the message information.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: July 5, 2011
    Assignees: NTT DoCoMo, Inc., The University of Tokyo
    Inventors: Ken Sakamura, Noboru Koshizuka, Masayuki Terada, Kensaku Mori, Kazuhiko Ishii, Sadayuki Hongo
  • Patent number: 7896236
    Abstract: A portable terminal, when receiving an exchange offer message of electronic values from a portable terminal, notifies an application program of an exchange offer content based on a listener corresponding to the message. When the application program accepts this offer content and when electronic values are determined as exchange objects, the portable terminal returns an exchange confirmation message of the electronic values. When the portable terminal receives the exchange confirmation message, it notifies an application program of an exchange content based on a listener corresponding to the message. When the application program accepts the exchange content, the exchange transaction of electronic values is started.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: March 1, 2011
    Assignees: NTT DoCoMo, Inc., The University of Tokyo
    Inventors: Ken Sakamura, Noboru Koshizuka, Kensaku Mori, Masayuki Terada, Kazuhiko Ishii, Sadayuki Hongo
  • Patent number: 7886189
    Abstract: To provide a mobile terminal apparatus with the lower communication cost in sending a log at the occurrence of a malfunction, abnormality or fault in the mobile terminal apparatus to a network. A diagnostic process for the malfunction is performed in accordance with a diagnostic policy acquired from the outside. An error code corresponding to the diagnostic result is generated. The generated error code is outputted. With an automatic fault diagnostic function of automatically analyzing the fault in the mobile terminal apparatus without directly sending the log collected in the mobile terminal apparatus to an analytic server, the communication cost can be reduced.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: February 8, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kensaku Mori, Koichi Asano, Akihiro Ichinose, Yoshimasa Nishimura
  • Patent number: 7882030
    Abstract: Each IC card 1 notifies a server 3 of the ID of the IC card and the connection information of a terminal device to which the IC card is connected. The server 3 stores the ID and the connection information in a database 4 while associating the ID and the connection information with each other. When an IC card 1 communicates with another IC card, the IC card 1 requests the connection information concerning the destination IC card from the server 3 while specifying the ID of this IC card. The server 3 searches the database 4 for the connection information corresponding to the ID specified by the request, and notifies the requesting IC card 1 of the acquired connection information. This enables communications between IC cards even if the terminal device to which a destination IC card is connected has been changed in the past.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: February 1, 2011
    Assignees: NTT DoCoMo, Inc.
    Inventors: Ken Sakamura, Noboru Koshizuka, Kazuhiko Ishii, Kensaku Mori, Hiroshi Aono, Sadayuki Hongo
  • Patent number: 7865438
    Abstract: A user device uses, instead of agreement information, only second session information contained in the agreement information, to generate an electronic signature for information containing the session information and information indicating an abort request, and outputs abort request information containing the session information, the information indicating the abort request, and the electronic signature, whereby transmission/reception can be performed without unnecessary information. Similarly, it may be configured to use only the second session information to generate an electronic signature for information containing the session information and information indicating a commitment request, and to output commitment request information containing the electronic signature. Since a third-party device defines a third session state as abort in correspondence to the second session information, it is able to manage states while appropriately discriminating a plurality of concurrent electronic value exchanges.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: January 4, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masayuki Terada, Kensaku Mori, Kazuhiko Ishii, Sadayuki Hongo
  • Patent number: 7861293
    Abstract: In a mobile terminal that performs transmission and reception of a message between an IC card and a terminal program, the security is improved by preventing an imposture of a source of a message or an interception of a message. A mobile terminal comprises an IC card and a terminal program. The terminal program generates a program identifier (i1:1) from a domain ID “i1” of the IC card and a port number “1” that can be updated in the IC card. Then, a message is transmitted, the source ID of which is the program identifier and the destination ID of which is the identifier “i1:0” of the IC card. Upon receipt of the message, the IC card collates the domain ID with the domain ID that the IC card has, as to the source ID. When they coincide, processing in accordance with the contents of the above-mentioned message is performed.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: December 28, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masayuki Terada, Kensaku Mori, Kazuhiko Ishii, Sadayuki Hongo
  • Patent number: 7814557
    Abstract: A folder containing at least one file can be created in a file storage (17) in response to a folder creation request from an owner (30) of an IC card (10), and an access authority to the folder can be set as an access control list (18A) of the folder in response to an access authority setting request from the owner (30). Then access to the file is controlled not only on the basis of the access authority to the file set by an issuer of a voucher (issuer of the file), but also on the basis of the access authority to the folder set by the owner (30).
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: October 12, 2010
    Assignees: NTT DoCoMo, Inc.
    Inventors: Ken Sakamura, Noboru Koshizuka, Kazuhiko Ishii, Masayuki Terada, Kensaku Mori, Sadayuki Hongo
  • Publication number: 20100094757
    Abstract: A user device for performing an exchange of an electronic value with another user device is provided. The user device includes an agreement unit configured to acquire offer information corresponding to at least a first random number, from another user device, generate a second random number, generate session information, generate agreement object information, generate an electronic signature, and output agreement information including at least the agreement object information, the session information, and the electronic signature. The user device further includes a second confirmation unit and an abort request unit. The second confirmation unit is configured to acquire from another user device, first confirmation information, perform a verification on a predetermined verification item, and output second confirmation information. The abort request unit is configured to generate an electronic signature and output abort request information.
    Type: Application
    Filed: December 11, 2009
    Publication date: April 15, 2010
    Applicant: NTT DoCoMo, Inc
    Inventors: Masayuki Terada, Kensaku Mori, Kazuhiko Ishii, Sadayuki Hongo
  • Publication number: 20090261304
    Abstract: [Object] It is aimed at providing a copper particulate dispersion containing therein copper particulates having diameters of 100 nm or less, suitable as a wiring material, which dispersion possesses not only an excellent dispersibility and oxidation resistance of copper particulates but also an excellent film-forming ability, and which dispersion is also capable of achieving a satisfactory electroconductive property of an electroconductive film obtained by low-temperature sintering. [Solving Means] The present invention provides a copper particulate dispersion comprising: copper particulates coated with water-soluble polymers and hydroxycarboxylic acid; hydroxycarboxylic acid; and polyhydric alcohol and/or a polar solvent.
    Type: Application
    Filed: July 24, 2006
    Publication date: October 22, 2009
    Inventors: Kensaku Mori, Shintarou Okamoto, Hiroko Nakata
  • Patent number: 7590591
    Abstract: When a portable terminal receives a condition for an exchange object from a portable terminal, it selects electronic values as exchange objects, out of lists constituting the condition. An IC card deletes the electronic value and sends a message addressed to the portable terminal. An IC card deletes the electronic value in conjunction with fulfillment of a predetermined condition and thereafter sends a message addressed to the IC card. The IC card stores the electronic value in conjunction with fulfillment of a predetermined condition and sends a message addressed to the IC card. The IC card stores the electronic value.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: September 15, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masayuki Terada, Kensaku Mori, Kazuhiko Ishii, Sadayuki Hongo
  • Patent number: 7580897
    Abstract: Between an IC card (1) and a electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: August 25, 2009
    Assignees: NTT DoCoMo, Inc.
    Inventors: Ken Sakamura, Noboru Koshizuka, Hiroshi Aono, Kazuhiko Ishii, Kensaku Mori, Sadayuki Hongo
  • Publication number: 20090199005
    Abstract: The security of an IC card is improved by managing success and failure in authentication individually for each terminal program. An IC card includes a random number generation section, a source authentication section, and a process execution section. Upon receipt of a message of type “1”, the random number generation section generates a random number n, and stores it in a random number storage section by associating the random number n with a source included in the message. Upon receipt of a message of type “2” from the source and in a case where the random number n corresponding to the source is stored, the source authentication section collates a value m calculated from an authentication key held by the IC card and the random number n with a value m included in the message of type “2”. When both values agree, upon receipt of a message of type “3” from the source, the process execution section executes a process in accordance with a type of the message.
    Type: Application
    Filed: April 8, 2009
    Publication date: August 6, 2009
    Applicant: NTT DoCoMo, Inc.
    Inventors: Masayuki TERADA, Kensaku MORI, Kazuhiko ISHII, Sadayuki HONGO