Patents by Inventor Ken Yokoyama

Ken Yokoyama 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: 20200004193
    Abstract: A controller controls a secondary transfer power source such that a current having a first value flows in a secondary transfer portion in a case where a transfer material with an image formed on a first surface thereof has been conveyed for less than a predetermined amount of time in a second conveyance path. Moreover, the controller controls the secondary transfer power source such that a current having a second value larger in absolute value than the first value flows in the secondary transfer portion in a case where the transfer material with an image formed on the first surface thereof is conveyed to the secondary transfer portion after waiting for the predetermined amount of time or more in the second conveyance path.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 2, 2020
    Inventors: Taisuke Minagawa, Ken Yokoyama, Yasuharu Hirado
  • Publication number: 20190391836
    Abstract: An operation management apparatus includes a processor. The processor generates a VM load model for each virtual machine running on an information processing system, generates resource utilization rate estimation data based on VM load models of a virtual machine group running on the physical machine and a VM load model of a first virtual machine, for each of physical machines except for a first physical machine on which the first virtual machine is running, generates a resource competition occurrence model based on the resource utilization rate of the physical machine, calculates a statistical value of competition occurrence probabilities of the resource, for each of the physical machines except for the first physical machine, based on the resource utilization rate estimation data and the resource competition occurrence model, specifies the migration destination physical machine based on the statistical value, and outputs information of a specified migration destination physical machine.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 26, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Junichi Higuchi, Takuto Tsuji, Ken Yokoyama
  • Patent number: 10496930
    Abstract: With reference to information storing a co-occurrence probability of each of plural words in association with each of distribution-destinations, the apparatus extracts, from a message to be distributed, an unknown-word that is not included in the plural words, where the co-occurrence probability indicates a probability that each word is included in a message to be distributed to each distribution-destination.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: December 3, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Yukihiro Watanabe, Ken Yokoyama, Masahiro Asaoka, Hiroshi Otsuka, Reiko Kondo
  • Publication number: 20190332038
    Abstract: An intermediate transfer belt includes, on a surface in contact with a photosensitive drum and a cleaning blade, a plurality of grooves formed along a moving direction of the intermediate transfer belt in a width direction which intersects the moving direction of the intermediate transfer belt. Further, the intermediate transfer belt includes a plurality of first regions in which adjacent grooves in the width direction are arranged at a predetermined interval, and a second region which is positioned between the plurality of first regions and in which an interval between adjacent grooves in the width direction is different from the predetermined interval. The second region is arranged outside, in the width direction of the intermediate transfer belt, a range in which a patch toner is to be formed in concentration correction.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 31, 2019
    Inventors: Shuji Saito, Ken Yokoyama, Noriaki Egawa, Koujirou Izumidate, Masatsugu Toyonori
  • Publication number: 20190332040
    Abstract: An image forming apparatus includes an intermediate transfer member. The intermediate transfer member includes a layer made of an acrylic copolymer. A plurality of grooves is formed in the layer along a moving direction of the intermediate transfer member across a width direction of the intermediate transfer member. A groove distance that is an average distance between adjoining grooves of the plurality of grooves in the width direction of the intermediate transfer member is 2 ?m or more and 10 ?m or less.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 31, 2019
    Inventors: Ken Yokoyama, Shuji Saito, Koujirou Izumidate
  • Publication number: 20190289101
    Abstract: An information processing apparatus includes a processor configured to identify, upon acquiring a communication packet, a communication session based on information included in a header of the acquired communication packet. The processor is configured to determine whether first management information includes first acquisition information indicating that a communication packet corresponding to a packet identifier included in a header of the acquired communication packet has been acquired. The processor is configured to determine, upon determining that the first management information includes the first acquisition information, whether second management information includes second acquisition information indicating that a communication packet corresponding to a fragment offset included in a header of the acquired communication packet has been acquired.
    Type: Application
    Filed: February 15, 2019
    Publication date: September 19, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Fumiyuki Iizuka, Ken Yokoyama
  • Publication number: 20190247077
    Abstract: An ultrasound probe includes: a probe main body section to which ultrasonic vibration generated by an ultrasound transducer is transmitted; a controller that is connected to the ultrasound transducer and controls generation of the ultrasonic vibration; and a treatment section that is provided on a distal side of the probe main body section and forms a hole in a bone, which is a treatment target, with the ultrasonic vibration. The treatment section has a distal end and a proximal end and includes a columnar portion, a cutting portion that cuts the bone by crushing the bone with the ultrasound vibration and forms the hole, and a discharge portion that discharges cutting debris of the bone cut by the cutting portion toward the proximal end from the cutting portion, the discharge portion including a recessed portion formed in a groove shape inclined with respect to the longitudinal axis.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Kiichiro SAWADA, Yasuo TANIGAMI, Hideto YOSHIMINE, Ken YOKOYAMA, Ryo MIYASAKA
  • Publication number: 20190247058
    Abstract: An ultrasound device includes: an ultrasound generator; an ultrasound probe; and a distal end treatment portion capable of forming a bone hole when pressed against a bone. The distal end treatment portion includes a base portion, and a distal end portion. The distal end portion includes projections and a valley portion between adjacent projections. Each projection is formed of at least one excision surface that is inclined from a base of the projection to a distal top of the projection. The excision surface is capable of finely crushing the bone. The valley portion includes a valley peak at a distal-most meeting point of adjacent projections such that a surface of the valley extending distally from a point at which the valley meets an outer surface of the base portion to the valley peak is inclined.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Michio TAKAYAMA, Hideto YOSHIMINE, Ken YOKOYAMA, Ryo MIYASAKA
  • Publication number: 20190247080
    Abstract: An ultrasonic surgical instrument for boring a hole in a femur, including: an ultrasonic vibrator capable of generating ultrasonic vibration; a probe including a proximal end portion connected with the ultrasonic vibrator and a distal end treatment portion capable of boring a bone hole in the femur, and transmitting the ultrasonic vibration; and a cylindrical member covering the proximal end portion of the probe and not covering an exposed portion including the distal end treatment portion. The distal end treatment portion includes a columnar portion having a cross-sectional area that is larger than that of a remainder of the exposed portion of the probe.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventor: Ken YOKOYAMA
  • Publication number: 20190196897
    Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes determining an information transmission path between two devices with a correlation in use status of resources based on system configuration information and use resource information; generating, for each of a plurality of software, an influence propagation model in which a direction from a first device to a second device is set as an influence propagation direction, when a co-occurrence probability that the second device outputs a message within a certain time after the first device outputs a message through execution of the software is equal to or greater than a threshold, based on a message log; acquiring failure information indicating a failed device; specifying an influenced device reached by tracing the information transmission path from the failed device in an influence propagation direction; and outputting information indicating the influenced device.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Reiko Kondo, YUKIHIRO WATANABE, Hiroshi Otsuka, Masahiro Asaoka, Ken Yokoyama
  • Patent number: 10318371
    Abstract: For each setting-file, an apparatus obtains, from first action-records, an occurrence-count value that is associated with the each first action-record and indicates a number of occurrences of a setting-item name identifying each setting-item for the each setting-file, in association with a sequence number assigned to the each first action-record, where each first action-record records an action that is taken in response to a first-incident. When there exists a first setting-file for which an occurrence-pattern generated based on a sequence of occurrence-count values that are each associated with different one of the sequence numbers assigned to the first action-records is similar to a model pattern that is in advance obtained from second action-records for second-incidents occurring due to a setting error of a setting-value that is set to the first setting file, the apparatus stores the first setting-file in association with an identifier identifying the first-incident.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: June 11, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hiroshi Otsuka, Yukihiro Watanabe, Ken Yokoyama
  • Patent number: 10289036
    Abstract: In an image forming apparatus, a peripheral velocity difference is provided between a peripheral velocity of an intermediate transfer belt and a peripheral velocity of an image bearing member, and when a relative moving distance between the image bearing member and the intermediate transfer belt, which is generated in the transfer nip portion because of the peripheral velocity difference, is taken as a shift amount of the toner image, a lower limit value of the shift amount is set to be at least ?, preferably half of an average perimeter calculated from a weight-average particle diameter of the toner, which is measured in advance.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 14, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ken Yokoyama, Hiroyuki Kadowaki, Kuniaki Kasuga, Shuichi Tetsuno
  • Patent number: 10275457
    Abstract: A computer executes a process of: generating co-occurrence-message bunches by summarizing messages based on a relation in which the messages output from an apparatus are mutually output within a predetermined period; classifying the generated co-occurrence-message bunches into groups based on similarity among the co-occurrence-message bunches; determining a first message which is a representative of each of the groups based on an appearance characteristic of a word or a word string included in each message of each of the groups; determining a second message which is a representative of each of the co-occurrence-message bunches and is not repeated based on an appearance characteristic of a word or a word string included in each message in each co-occurrence-message bunch of each of the groups; and outputting the first message determined for the group including each co-occurrence-message bunch and the second message determined for each co-occurrence-message bunch in correlation with each co-occurrence-message b
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 30, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Masahiro Asaoka, Ken Yokoyama, Yukihiro Watanabe, Hiroshi Otsuka, Reiko Kondo
  • Patent number: 10248517
    Abstract: A computer-implemented method includes: acquiring learning data from the plurality of processing devices in which a setting item, a setting value that include a setting error included in configuration information acquired when a fault in a system has occurred, and a fault type are associated with each other; determining whether each of fault types included in the learning data depends on a software configuration; extracting first software configuration information indicating a combination of setting files in which settings related to software are described, from the configuration information, based on a result of the determining; extracting second software configuration information indicating a combination of setting files in which settings related to software are described, from configuration information of a detection target; and determining whether to output an indication of a fault occurrence within the detection target by comparing the second software configuration information with the first software con
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: April 2, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hiroshi Otsuka, Yukihiro Watanabe, Ken Yokoyama
  • Publication number: 20180351840
    Abstract: An influence range identification apparatus includes a processor configured to acquire information indicating a first device in which a failure occurs. The processor searches for second devices starting from the first device based on a connection relationship among a plurality of devices. The second devices exist in a first influence range. The processor determines whether a third device exists among the second devices. The third device has abnormality due to the failure. The processor determines whether each of the second devices other than the third device exits in a second influence range starting from the third device based on the connection relationship among the second devices. The processor determines a rank of a degree of a possibility of being affected by the failure with respect to each of the second devices other than the third device.
    Type: Application
    Filed: May 24, 2018
    Publication date: December 6, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Reiko Kondo, Hiroshi Otsuka, YUKIHIRO WATANABE, Masahiro Asaoka, Ken Yokoyama
  • Publication number: 20180253036
    Abstract: In an image forming apparatus, a peripheral velocity difference is provided between a peripheral velocity of an intermediate transfer belt and a peripheral velocity of an image bearing member, and when a relative moving distance between the image bearing member and the intermediate transfer belt, which is generated in the transfer nip portion because of the peripheral velocity difference, is taken as a shift amount of the toner image, a lower limit value of the shift amount is set to be at least ?, preferably half of an average perimeter calculated from a weight-average particle diameter of the toner, which is measured in advance.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Inventors: Ken Yokoyama, Hiroyuki Kadowaki, Kuniaki Kasuga, Shuichi Tetsuno
  • Publication number: 20180232360
    Abstract: A computer executes a process of: generating co-occurrence-message bunches by summarizing messages based on a relation in which the messages output from an apparatus are mutually output within a predetermined period; classifying the generated co-occurrence-message bunches into groups based on similarity among the co-occurrence-message bunches; determining a first message which is a representative of each of the groups based on an appearance characteristic of a word or a word string included in each message of each of the groups; determining a second message which is a representative of each of the co-occurrence-message bunches and is not repeated based on an appearance characteristic of a word or a word string included in each message in each co-occurrence-message bunch of each of the groups; and outputting the first message determined for the group including each co-occurrence-message bunch and the second message determined for each co-occurrence-message bunch in correlation with each co-occurrence-message b
    Type: Application
    Filed: February 6, 2018
    Publication date: August 16, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro Asaoka, Ken Yokoyama, YUKIHIRO WATANABE, Hiroshi Otsuka, Reiko Kondo
  • Publication number: 20180232270
    Abstract: A non-transitory computer-readable storage medium storing therein a failure analysis program that causes a computer to execute a process includes: extracting, for respective incidents, first material names that satisfy a first condition from character strings included in each incident; extracting, for the respective incidents, second material names, which are the same material names as the first material names, from the character strings included in each incident; calculating a combination of feature values corresponding respectively to the one or more features from character strings correlated with the extracted second material names, for the respective incidents and for the respective second material names; and specifying a specific combination that satisfies a second condition from the combinations of feature values corresponding to the respective material names, for the respective second material names.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 16, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi Otsuka, Yukihiro Watanabe, Masahiro Asaoka, Reiko Kondo, Ken Yokoyama
  • Publication number: 20180082205
    Abstract: With reference to information storing a co-occurrence probability of each of plural words in association with each of distribution-destinations, the apparatus extracts, from a message to be distributed, an unknown-word that is not included in the plural words, where the co-occurrence probability indicates a probability that each word is included in a message to be distributed to each distribution-destination.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 22, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yukihiro WATANABE, Ken YOKOYAMA, Masahiro ASAOKA, Hiroshi OTSUKA, Reiko KONDO
  • Publication number: 20170357543
    Abstract: For each setting-file, an apparatus obtains, from first action-records, an occurrence-count value that is associated with the each first action-record and indicates a number of occurrences of a setting-item name identifying each setting-item for the each setting-file, in association with a sequence number assigned to the each first action-record, where each first action-record records an action that is taken in response to a first-incident. When there exists a first setting-file for which an occurrence-pattern generated based on a sequence of occurrence-count values that are each associated with different one of the sequence numbers assigned to the first action-records is similar to a model pattern that is in advance obtained from second action-records for second-incidents occurring due to a setting error of a setting-value that is set to the first setting file, the apparatus stores the first setting-file in association with an identifier identifying the first-incident.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi OTSUKA, Yukihiro Watanabe, Ken Yokoyama