Patents by Inventor Yutaka Miyake

Yutaka Miyake 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: 20190243282
    Abstract: An image forming apparatus includes a controller configured to control a first image forming unit such that while a plurality of images are being sequentially formed, a first pattern image is formed in a first sheet-to-sheet area between a first black image and a second black image among the plurality of images on a first photosensitive body, and control the second image forming unit such that while the plurality of images is being sequentially formed, a second pattern image are formed in a second sheet-to-sheet area between a first color image and a second color image among the plurality of images on a second photosensitive body. The first sheet-to-sheet area in a case where the first pattern image is formed without the second pattern image being formed is narrower than the first sheet-to-sheet area in a case where the first pattern image and the second pattern image are formed.
    Type: Application
    Filed: January 25, 2019
    Publication date: August 8, 2019
    Inventors: Toshiyuki Miyake, Yutaka Ando, Riki Fukuhara
  • Publication number: 20190238395
    Abstract: A mechanism which can easily acquire a connection relationship of each device even in a multilayered network system having a plurality of protocols is provided. A network system has at least one network including a master processing unit and one or a plurality of slave processing units. Each of first, second, and third devices holds characteristic information indicating whether or not the device has a master processing unit or a slave processing unit. The first device includes a network management unit that acquires single-layer network configuration information from each master processing unit included in the network system to generate multilayer network configuration information indicating a connection relationship of each device in the network system.
    Type: Application
    Filed: October 15, 2018
    Publication date: August 1, 2019
    Applicant: OMRON Corporation
    Inventors: Kazunari MIYAKE, Kenichi IWAMI, Yutaka TAHARA
  • Publication number: 20190197016
    Abstract: A control system and control device are provided capable of flexibly realizing communication processing without requiring an additional unit even when a plurality of units having a communication function are present is provided. The control system includes a first unit having a first communication port for transmitting and receiving data, and one or more second units electrically connected to the first unit. Each of the second units includes a logical communication unit for transmitting/receiving data to/from the device electrically connected to the first communication port of the first unit. The first unit includes a forwarding processing unit which forwards transmission data transmitted from the second unit to the device which is a transmission destination.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 27, 2019
    Applicant: OMRON Corporation
    Inventors: Norihiro MAEKAWA, Yutaka TAHARA, Kazunari MIYAKE, Koji KARASUYAMA, Yuji IKEO, Ryosuke FUJIMURA
  • Patent number: 9559844
    Abstract: A non-linear processor, which subjects an input value from a feedback shift register storing an internal state of a stream cipher to non-linear processing to output a key stream, is connected to internal registers, which store output values from a non-linear substitution circuit which subjects the input value to non-linear substitution processing. The non-linear processor is provided with an exclusive-OR unit, which is at an input end of each of the internal registers and carries out an operation of a random number generated from part of values stored in the feedback shift register and the output value of the non-linear substitution circuit to mask the output value of the non-linear substitution circuit, and another exclusive-OR unit, which is provided at an output end of the internal register and performs an operation to unmask the value stored in the internal register.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: January 31, 2017
    Assignee: KDDI Corporation
    Inventors: Yuto Nakano, Shinsaku Kiyomoto, Yutaka Miyake
  • Publication number: 20160164674
    Abstract: A stream-cipher encrypting method includes first step of expanding an initial key in advance to generate an expanded key by a key expanding unit, a second step of inputting the generated expanded key and an initial value in the initialization processing by an initialization processing unit to carry out the initialization processing, a third step by a key-sequence generating unit of inputting a feedback value from a non-linear unit after the initialization processing is finished, parallelly processing non-linear processing, and maintaining and processing rearranging processing and a multiplication result, which is for obtaining the feedback value, as a data table to generate a key sequence by a non-linear function, and a fourth step of carrying out an exclusive-OR operation of the generated key sequence and a plaintext to generate an encrypted text by an encrypted-text generating unit.
    Type: Application
    Filed: February 10, 2016
    Publication date: June 9, 2016
    Inventors: Yuto NAKANO, Shinsaku KIYOMOTO, Yutaka MIYAKE
  • Publication number: 20150304102
    Abstract: A non-linear processor, which subjects an input value from a feedback shift register storing an internal state of a stream cipher to non-linear processing to output a key stream, is connected to internal registers, which store output values from a non-linear substitution circuit which subjects the input value to non-linear substitution processing. The non-linear processor is provided with an exclusive-OR unit, which is at an input end of each of the internal registers and carries out an operation of a random number generated from part of values stored in the feedback shift register and the output value of the non-linear substitution circuit to mask the output value of the non-linear substitution circuit, and another exclusive-OR unit, which is provided at an output end of the internal register and performs an operation to unmask the value stored in the internal register.
    Type: Application
    Filed: October 3, 2012
    Publication date: October 22, 2015
    Inventors: Yuto NAKANO, Shinsaku KIYOMOTO, Yutaka MIYAKE
  • Patent number: 8925079
    Abstract: A method, an apparatus and a program for detecting spoofed Internet Protocol (IP) traffic directed to a network having a plurality of autonomous systems (AS) is provided. The method comprises receiving an incoming packet through an AS, the incoming packet containing a source IP address and a destination IP address, acquiring a corresponding source and destination IP address prefixes, converting the corresponding source and destination IP address prefixes into a source AS number and a destination AS number, determining if the incoming packet arrived from an unexpected source based upon the corresponding destination IP address prefix and the converted source and destination AS number using an unexpected pair tuple table generated from network routing information and generating an alert indicating that the incoming packet is not allowed to enter the network.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: December 30, 2014
    Assignees: Telcordia Technologies, Inc., KDDI Corporation
    Inventors: Ravichander Vaidyanathan, Abhrajit Ghosh, Aditya Naidu, Akira Yamada, Ayumu Kubota, Yukiko Sawaya, Yutaka Miyake
  • Publication number: 20130125235
    Abstract: A method, an apparatus and a program for detecting spoofed Internet Protocol (IP) traffic directed to a network having a plurality of autonomous systems (AS) is provided. The method comprises receiving an incoming packet through an AS, the incoming packet containing a source IP address and a destination IP address, acquiring a corresponding source and destination IP address prefixes, converting the corresponding source and destination IP address prefixes into a source AS number and a destination AS number, determining if the incoming packet arrived from an unexpected source based upon the corresponding destination IP address prefix and the converted source and destination AS number using an unexpected pair tuple table generated from network routing information and generating an alert indicating that the incoming packet is not allowed to enter the network.
    Type: Application
    Filed: November 14, 2011
    Publication date: May 16, 2013
    Applicants: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Ravichander Vaidyanathan, Abhrajit Ghosh, Aditya Naidu, Akira Yamada, Ayumu Kubota, Yukiko Sawaya, Yutaka Miyake
  • Patent number: 8281397
    Abstract: A method and apparatus for detecting spoofed IP network traffic is presented. A mapping table is created to indicate correlations between IP address prefixes and AS numbers, based on routing information collected from a plurality of data sources. At each interface of a target network, IP address prefixes from a training traffic flow are acquired and further converted into AS numbers based on the mapping table. An EAS (Expected Autonomous System) table is populated by the AS numbers collected for each interface. The EAS table is used to determine if an operation traffic flow is allowed to enter the network.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: October 2, 2012
    Assignee: Telcordia Technologies, Inc.
    Inventors: Ravichander Vaidyanathan, Abhrajit Ghosh, Yuu-Heng Cheng, Akira Yamada, Yutaka Miyake
  • Patent number: 8276553
    Abstract: A water pump attachment structure of a water-cooled internal combustion engine is provided to facilitate the maintenance of a valve train. A water pump attachment structure of a water-cooled internal combustion engine includes a semicircular cut-away surface of a water pump holder opposed to a semicircular surface of a cylinder head to form a water pump support circular hole. Screw members are passed through respective screw through-holes of the cylinder head and threadedly engaged with internal thread holes of the water pump holder. Thus, the water pump holder is fastened to the cylinder head. A water pump is fitted into and secured to the water pump support circular hole. A cylinder head cover is attached to the cylinder head by allowing their mating surfaces to conform with each other with the water pump holder liquid-tightly sandwiched therebetween.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 2, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Teruhide Yamanishi, Ryuji Tsuchiya, Kenji Oki, Yutaka Miyake
  • Publication number: 20110271340
    Abstract: A method and apparatus for detecting spoofed IP network traffic is presented. A mapping table is created to indicate correlations between IP address prefixes and AS numbers, based on routing information collected from a plurality of data sources. At each interface of a target network, IP address prefixes from a training traffic flow are acquired and further converted into AS numbers based on the mapping table. An EAS (Expected Autonomous System) table is populated by the AS numbers collected for each interface. The EAS table is used to determine if an operation traffic flow is allowed to enter the network.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 3, 2011
    Applicants: KDDI CORPORATION, TELCORDIA TECHNOLOGIES, INC.
    Inventors: Ravichander Vaidyanathan, Abhrajit Ghosh, Yuu-Heng Cheng, Akira Yamada, Yutaka Miyake
  • Publication number: 20100162974
    Abstract: A water pump attachment structure of a water-cooled internal combustion engine is provided to facilitate the maintenance of a valve train. A water pump attachment structure of a water-cooled internal combustion engine includes a semicircular cut-away surface of a water pump holder opposed to a semicircular surface of a cylinder head to form a water pump support circular hole. Screw members are passed through respective screw through-holes of the cylinder head and threadedly engaged with internal thread holes of the water pump holder. Thus, the water pump holder is fastened to the cylinder head. A water pump is fitted into and secured to the water pump support circular hole. A cylinder head cover is attached to the cylinder head by allowing their mating surfaces to conform with each other with the water pump holder liquid-tightly sandwiched therebetween.
    Type: Application
    Filed: December 10, 2009
    Publication date: July 1, 2010
    Inventors: Teruhide YAMANISHI, Ryuji Tsuchiya, Kenji Oki, Yutaka Miyake
  • Patent number: 7673334
    Abstract: A communication system and a security assurance device are proposed, which are capable of assuring that a target party for communication is implementing security countermeasures. A server 3 transmits information 104 necessary for AC issuance to a security assurance authority 2. The security assurance authority 2 verifies the security of the server 3 during communication based upon this information necessary for AC issuance 104. And, when the security of the server 3 during communication is confirmed, the security assurance authority 2 issues an AC 105 which proves the security of the server 3 during communication, and transmits it to the server 3. Upon receipt of this AC 105, the server 3 transmits the AC 105 to a client 4, according to a connection request from the client 4. And, upon receipt of this AC 105, the client 4 verifies the security during communication of the server 3, based upon the AC 105.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: March 2, 2010
    Assignees: KDDI Corporation, KEIO University
    Inventors: Keisuke Takemori, Yutaka Miyake, Toshiaki Tanaka, Takamasa Isohara, Iwao Sasase
  • Patent number: 7062654
    Abstract: The present invention provides systems and methods of cross-domain access control in which a client node (250) sends a request (250) for a resource to a resource server (260). In response, a local proxy server (270) automatically obtains a ticket having a revocation status (275) and forwards the ticket (275) to an authorization server (280) that communicates with the resource server (260) regarding access.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: June 13, 2006
    Assignees: SRI International, KDD R&D Laboratories, Inc.
    Inventors: Jonathan Millen, Grit Denker, Yutaka Miyake
  • Publication number: 20060048228
    Abstract: A communication system and a security assurance device are proposed, which are capable of assuring that a target party for communication is implementing security countermeasures. A server 3 transmits information 104 necessary for AC issuance to a security assurance authority 2. The security assurance authority 2 verifies the security of the server 3 during communication based upon this information necessary for AC issuance 104. And, when the security of the server 3 during communication is confirmed, the security assurance authority 2 issues an AC 105 which proves the security of the server 3 during communication, and transmits it to the server 3. Upon receipt of this AC 105, the server 3 transmits the AC 105 to a client 4, according to a connection request from the client 4. And, upon receipt of this AC 105, the client 4 verifies the security during communication of the server 3, based upon the AC 105.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 2, 2006
    Inventors: Keisuke Takemori, Yutaka Miyake, Toshiaki Tanaka, Takamasa Isohara, Iwao Sasase
  • Patent number: 6587435
    Abstract: The apparatus 10 is set on the line between the first and second computers 1,2 which respectively communicates by a protocol, such as TCP, having a flow control. The delay between the first computer 1 and a position, at which the apparatus 10 is set, is less than the delay between the position and the second computer 2. The apparatus 10 sends and receives a packet to/from the computers 1,2. The apparatus 10 transfers to the second computer 2, a data packet sent from the first computer 1 and being larger than a maximum data amount notified by the second computer 2. The apparatus 10 transfers, to the first computer 1, a data packet sent from the second computer 2, but does not transfer, to the first computer 1, an ACK packet sent from the second computer 2. The apparatus 10 generates, instead of the second computer 2, an ACK packet for a data packet sent from the first computer 1 and then sends the ACK packet to the first computer 1.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: July 1, 2003
    Assignee: KDD Corporation
    Inventors: Yutaka Miyake, Teruyuki Hasegawa, Toru Hasegawa, Toshihiko Kato
  • Publication number: 20030093666
    Abstract: The present invention provides systems and methods of cross-domain access control in which a client node (250) sends a request (250) for a resource to a resource server (260). In response, a local proxy server (270) automatically obtains a ticket having a revocation status (275) and forwards the ticket (275) to an authorization server (280) that communicates with the resource server (260) regarding access.
    Type: Application
    Filed: August 15, 2002
    Publication date: May 15, 2003
    Inventors: Jonathan Millen, Grit Denker, Yutaka Miyake
  • Publication number: 20030043788
    Abstract: A packet repeater (e.g., gateway) is applicable to an integrated digital network system which incorporates a first network (e.g., Internet) and a second network (e.g., satellite communication system) comprising an upstream line and a downstream line which are asymmetrical with respect to each other in data transmission speed. In the packet repeater, specific data (e.g., TCP data) are extracted from plural packets and are assembled together into a single transmission packet on the basis of the maximal amount of storable data, which is greater than the maximal segment size notified from a receiver under conditions in which the reception window size fulfills the maximal amount of storable data.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 6, 2003
    Applicant: KDDI Corporation
    Inventors: Teruyuki Hasegawa, Yutaka Miyake, Toru Hasegawa, Kouji Nakao
  • Patent number: 6481391
    Abstract: To reliably prevent the occurrence of a pull out phenomenon in a magnetic driving pump of a vehicle internal combustion engine where permanent magnets, magnetized to have alternate N poles and S poles around an axis of a drive shaft and a driven shaft, are respectively fixed to the drive shaft and the driven shaft. The drive shaft is interlocked with a crankshaft and the driven shaft is coaxially mounted with the drive shaft. Furthermore, the permanent magnets are magnetized to have alternate N poles and S poles 90 degrees or 180 degrees in phase in a peripheral direction.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: November 19, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shin Nabeya, Masatoshi Fukamachi, Yutaka Miyake, Osamu Sato
  • Publication number: 20020056433
    Abstract: To reliably prevent the occurrence of a pull out phenomenon in a magnetic driving pump of a vehicle internal combustion engine where permanent magnets, magnetized to have alternate N poles and S poles around an axis of a drive shaft and a driven shaft, are respectively fixed to the drive shaft and the driven shaft. The drive shaft is interlocked with a crankshaft and the driven shaft is coaxially mounted with the drive shaft. Furthermore, the permanent magnets are magnetized to have alternate N poles and S poles 90 degrees or 180 degrees in phase in a peripheral direction.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 16, 2002
    Inventors: Shin Nabeya, Masatoshi Fukamachi, Yutaka Miyake, Osamu Sato