Patents by Inventor Hiroki Iwasawa

Hiroki Iwasawa 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: 20240103409
    Abstract: A controller of an image forming apparatus controls a transfer voltage applying portion so that a voltage is not applied to a transfer member or a voltage of an opposite polarity to a normal charge polarity of toner is applied to the transfer member, in a first period including at least a period, after rotation of a photosensitive member and a developing member, from first arrival of a first region at a transfer portion to first arrival of a second region at the transfer portion, and so that at least a first voltage of the same polarity as the normal charge polarity and a second voltage of the same polarity as the first voltage and larger in absolute value than the first voltage are applied to the transfer member in a second period after the first period and before a toner image reaches the transfer portion.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 28, 2024
    Inventors: HIROKI EGUCHI, YUSAKU IWASAWA
  • Publication number: 20230412522
    Abstract: A control device that performs resource allocation to a network including a transmission device, one or more transfer devices, and a reception device as nodes, the control device including a schedule database unit that holds schedules of time slots not allocated to specific communication, the schedules being set in advance for respective nodes of the network, and a schedule processing unit that, in a case where a communication request is received, selects a time slot that satisfies a transmission request amount of the transmission device on the basis of remaining transmittable amounts of respective time slots in the schedules and notifies the transmission device of a selected time slot.
    Type: Application
    Filed: November 25, 2020
    Publication date: December 21, 2023
    Inventors: Hiroki IWASAWA, Nobuhiro AZUMA, Takahide KITSU, Hitoshi MASUTANI, Takeshi KUWAHARA
  • Patent number: 11695702
    Abstract: A packet transfer device 100 includes a packet classification unit 120 configured to classify received packets, queues 140 for respective classifications, priorities being set to the queues, a dequeue processing unit 150 configured to extract packets from the queue under a predetermined rule based on the priorities set to the queues, and a queue priority control unit 130 configured to perform control, upon detecting that a reception amount of packets related to a communication flow temporarily or intermittently increases from a reception amount under a normal condition, such that a priority of one of the queues holding the packets related to the communication flow is temporarily raised from a priority under the normal condition, during a period while the reception amount of packets related to the communication flow temporarily or intermittently increases.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: July 4, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiroki Iwasawa, Kenta Kawakami, Takeshi Kuwahara
  • Publication number: 20230169712
    Abstract: In a resource estimation device 1 that estimates a resource necessary for a virtual terminal, the resource estimation device 1 being installed at an edge of a cloud, the virtual terminal performing rendering of a VR image, the resource estimation device 1 includes: a resource estimation unit 230 configured to calculate a resource value corresponding to a VR image output scheme and a characteristic value of 3D data, using resource relation information, the resource value being necessary to cause the virtual terminal to operate at the characteristic value, the VR image output scheme being a scheme for outputting the VR image and being input, the 3D data being data about an object that is drawn by a VR application program, the resource relation information being set for each VR image output scheme and indicating a relation about change between the characteristic value and the resource value, and configured to calculate the calculated resource value as the resource necessary for the virtual terminal; and a relati
    Type: Application
    Filed: February 28, 2020
    Publication date: June 1, 2023
    Inventors: Daishi AIURA, Hiroki IWASAWA, Kenta KAWAKAMI, Takeshi KUWAHARA
  • Publication number: 20220366629
    Abstract: A delay measurement device that is to be connected, via a communication network, to a rendering server that performs rendering processing on an image, includes: transmission means for transmitting, to the rendering server, sensor information acquired from a sensor included in the delay measurement device and trigger information acquired in a predetermined time period; receiving means for receiving a rendered image generated through the rendering processing performed in the rendering server based on the sensor information and the trigger information; and measurement means for measuring a predetermined delay based on a difference between a first time indicating a time when the trigger information was transmitted to the rendering server and a second time indicating a time when the rendered image or a predetermined image was displayed.
    Type: Application
    Filed: July 1, 2019
    Publication date: November 17, 2022
    Inventors: Shinya Tamaki, Takeshi KUWAHARA, Kenta KAWAKAMI, Yusuke URATA, Hiroki Iwasawa
  • Patent number: 11477121
    Abstract: A packet transfer apparatus is configured to perform packet exchange processing for exchanging multiple continuous packets with low delay while maintaining fairness between communication flows of the same priority level. The packet transfer apparatus includes: a packet classification unit; queues that holds the classified packets for each classification; and a dequeue processing unit that extracts packets from the queues. The dequeue processing unit includes a scheduling unit that controls the packet extraction amount extracted from the queue for a specific communication flow based on information on the amount of data that is requested by the communication flow and is to be continuously transmitted in packets.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: October 18, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiroki Iwasawa, Kazuhiro Tokunaga, Shinya Tamaki, Takeshi Kuwahara
  • Publication number: 20210352020
    Abstract: For an application collectively transmitting a group of packets desired to be transmitted at once, the group of successive packets are transferred with low latency, while fairness is maintained among communication flows with the identical priority.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 11, 2021
    Inventors: Hiroki Iwasawa, Kenta Kawakami, Takeshi Kuwahara
  • Publication number: 20210314267
    Abstract: Provided is a packet transfer apparatus configured to per form packet exchange processing for exchanging multiple continuous packets with low delay while maintaining fairness between communication flows of the same priority level. A packet transfer apparatus 100 includes: a packet classification unit 120; queues 130 that holds the classified packets for each classification; and a dequeue processing unit 140 that extracts packets from the queues 130. The dequeue processing unit 140 includes a scheduling unit 141 that controls the packet extraction amount extracted from the queue 130 for a specific communication flow based on information on the amount of data that is requested by the communication flow and is to be continuously transmitted in packets.
    Type: Application
    Filed: July 26, 2019
    Publication date: October 7, 2021
    Inventors: Hiroki Iwasawa, Kazuhiro Tokunaga, Shinya Tamaki, Takeshi Kuwahara