Patents by Inventor Kazuya Sasaki

Kazuya Sasaki 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: 11812326
    Abstract: A check-in determination apparatus 1 configured to determine check-in indicating that a terminal 2 has entered a geofence which is a prescribed geographic area includes: a related geofence information storage unit 12 configured to store related geofence information in which a related geofence which is another geofence is correlated with each geofence on the basis of a distance to the geofence; a check-in determination unit 14 configured to determine check-in of the terminal 2 sequentially with respect to each of the geofences. When it is determined that the terminal 2 has checked into one geofence, the check-in determination unit 14 excludes the related geofence correlated with the one geofence in the related geofence information stored by the related geofence information storage unit 12 from determination targets in subsequent determination.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: November 7, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Tadashi Okamine, Kazuya Sasaki, Shoichi Horiguchi, Masatoshi Kimoto
  • Patent number: 11805393
    Abstract: An object is to provide a population distribution aggregation calculation device which can calculate a population distribution of high accuracy.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: October 31, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Tomohiro Nakagawa, Takuya Doumen, Kazuya Sasaki
  • Publication number: 20230342810
    Abstract: To provide an information distribution management device configured to analyze distribution in consideration of the number of unique users. An advertisement management device 100 includes a heat map generation unit 101 configured to generate a heat map indicating the necessity of advertisement distribution to a designated target layer for each of a plurality of units of digital signage 300 and for each time slot, a reach curve generation unit 103 configured to function as a viewing estimation unit that estimates the viewing frequency of unique users of the target layer for the digital signage 300 to which the heat map is applied, and an evaluation unit 104 configured to evaluate the heat map on the basis of the number of viewers who are unique users of the target layer (equivalent to viewing frequency) and the total number of viewers who are all users to whom the heat map is applied (viewing frequency).
    Type: Application
    Filed: September 3, 2021
    Publication date: October 26, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro NAKAGAWA, Kazuma NOZAWA, Kazuya SASAKI
  • Publication number: 20230256390
    Abstract: A lithium isotope concentration device includes a treatment tank partitioned in a supply tank and a recovery tank by an electrolyte membrane having a lithium-ion conductivity. The electrolyte membrane is cooled by a cooling device via an Li-containing aqueous solution in the supply tank to have a low temperature at which the Li isotope separation coefficient is larger. A power supply device, connected between electrodes provided on opposite surfaces of the electrolyte membrane, applies a positive voltage to an electrode on a supply tank side.
    Type: Application
    Filed: July 6, 2021
    Publication date: August 17, 2023
    Applicant: Hirosaki University
    Inventors: Kazuya SASAKI, Kiyoto SHINMURA
  • Patent number: 11570746
    Abstract: A check-in determination apparatus 1 includes: a determination history information storage unit 13 configured to store determination history information for each terminal 2, in which position identifying information capable of identifying a position of the terminal 2 when check-in of the terminal 2 with respect to the geofence was determined is correlated with geofence identifying information capable of identifying the geofence; a related geofence information storage unit 12 configured to store related geofence information that correlates another geofence with each geofence; a position identifying information acquisition unit 14 configured to acquire position identifying information of the terminal 2; and a check-in determination unit 15 configured to determine check-in of the terminal 2 with respect to the geofence determined on the basis of the acquired position identifying information of the terminal 2, the stored determination history information, and the stored related geofence information.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: January 31, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Tadashi Okamine, Kazuya Sasaki, Shoichi Horiguchi, Masatoshi Kimoto
  • Publication number: 20230016718
    Abstract: A rotary operating device includes a case, a rotating shaft member, an operation member, and a sensor. The case has a cavity having an annular shape with an opening at a top. The rotating shaft member is rotatable with respect to the case. The operation member rotates together with the rotating shaft member. The sensor is disposed within the cavity to detect rotation of the rotating shaft member. The case has an inner peripheral wall. The operation member has an inner cylindrical portion. The rotating shaft member has a peripheral wall that extends downward and along an outer peripheral surface of the inner peripheral wall. A first gap between the inner peripheral wall of the case and the peripheral wall of the rotating shaft member is smaller than a second gap between an inner peripheral surface of the rotating shaft member and the inner cylindrical portion of the operation member.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 19, 2023
    Inventors: Kazuya SASAKI, Mariko ITO, Keisuke YAMAZAKI
  • Patent number: 11555796
    Abstract: The present invention relates to a method for evaluating the thermal expansion properties of a titania-containing glass body. On the basis of measured values, obtained at a certain temperature, for a physical parameter that changes depending on the titania concentration and a physical parameter that changes depending on the fictive temperature, the thermal expansion coefficient of the titania-containing silica glass body and the slope of the thermal expansion coefficient are calculated using a linear relational expression represented by a plurality of physical properties. The thermal expansion properties of the titania-containing silica glass body are evaluated on the basis of the calculated thermal expansion coefficient and thermal expansion coefficient slope.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: January 17, 2023
    Assignee: AGC Inc.
    Inventors: Kazuya Sasaki, Masaaki Takata
  • Publication number: 20220411322
    Abstract: The present invention relates to a silica glass including bublles in the number of 1×107/cm3 to 1×1015/cm3 and having a density of 0.5 g/cm3 to 1.95 g/cm3. The present invention also relates to a method for producing a silica glass, including: a step of depositing SiO2 fine particles generated by flame hydrolysis of a silicon compound, to obtain a silica glass porous body; a step of heating and sintering the silica glass porous body in an inert gas atmosphere, to obtain a silica glass dense body; and a step of performing a foaming treatment to heat the silica glass dense body under a reduced pressure condition.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 29, 2022
    Applicant: AGC Inc.
    Inventor: Kazuya SASAKI
  • Publication number: 20220325153
    Abstract: The present invention relates to a urethane prepolymer having an isocyanate group, a viscosity at 100° C. of 30 to 600 dPa·s, and a thermal softening temperature after moisture curing of 75 to 155° C.
    Type: Application
    Filed: August 24, 2020
    Publication date: October 13, 2022
    Applicant: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Ryo KAWAMURA, Toshiki YAMADA, Kazuya SASAKI
  • Publication number: 20220322275
    Abstract: An object of the present invention is to appropriately correct data based on position data acquired by positioning. A data correction device 1 includes an information storage unit 11 that stores position information including position data acquired by positioning and positioning information relating to the positioning, a filter generation unit 13 that generates a filter on the basis of the positioning information included in the position information stored by the information storage unit 11, and a data correction unit 14 that applies the filter generated by the filter generation unit 13 on the basis of the positioning information included in the position information to data based on the position data included in the position information to thereby correct the data.
    Type: Application
    Filed: September 29, 2020
    Publication date: October 6, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro NAKAGAWA, Takuya DOUMEN, Kazuya SASAKI
  • Publication number: 20220301003
    Abstract: An area specifying system is a system for specifying an area in which information presented by an information medium is recognizable as the information, and includes a medium position information acquisition unit configured to acquire medium position information indicating a position in which the information medium is provided, an area specifying information acquisition unit configured to acquire area specifying information related to at least one of attributes of the information medium and content of the information presented by the information medium, and a specifying unit configured to specify the area based on the medium position information acquired by the medium position information acquisition unit and the area specifying information acquired by the area specifying information acquisition unit.
    Type: Application
    Filed: April 28, 2020
    Publication date: September 22, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro NAKAGAWA, Takuya DOUMEN, Kazuya SASAKI
  • Publication number: 20220295228
    Abstract: An environment estimation device 1 includes: an information storage unit 11 configured to store base station information in which a serving timing at which a mobile terminal 2 is served in a radio communication range of a base station 3 and environment information indicating an environment of the base station 3 are correlated; an information acquiring unit 10 configured to acquire position information including position data of the mobile terminal 2 acquired by positioning and a positioning timing; and an estimation unit 13 configured to estimate, based on the positioning timing included in the position information of the mobile terminal 2 acquired by the information acquiring unit 10 and the base station information stored in the information storage unit 11, an environment of the mobile terminal 2 at a position indicated by the position data included in the position information.
    Type: Application
    Filed: October 1, 2020
    Publication date: September 15, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki KINJOU, Tomohiro NAKAGAWA, Kazuya SASAKI
  • Publication number: 20220254819
    Abstract: A solid-state imaging device includes: a semiconductor substrate; a photoelectric converter having a predetermined dimension in a thickness direction of the semiconductor substrate; a first charge accumulator that is provided in the semiconductor substrate and accumulates a signal charge generated by the photoelectric converter; and a transfer gate including a first electrode section and a second electrode section, the first electrode section being embedded in the semiconductor substrate, having a first dimension in the thickness direction of the semiconductor substrate, and being provided on a side of the photoelectric converter, and the second electrode section being selectively provided at a position closer to the first charge accumulator than the first electrode section and having a second dimension in the thickness direction of the semiconductor substrate smaller than the first dimension.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 11, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Kazuya SASAKI
  • Publication number: 20220232348
    Abstract: A traffic amount estimation system is a traffic amount estimation system that estimates a traffic amount of people in a predetermined time frame in an area that is an estimation target set in advance, the traffic amount estimation system including: a population information acquiring unit configured to acquire population information representing a population at a predetermined timing in the area that is the estimation target; a movement state information acquiring unit configured to acquire movement state information representing a movement state of each of a plurality of people in the area that is the estimation target; and an estimation unit configured to group the movement state information in accordance with moving directions represented by the movement state information and estimate the traffic amount on the basis of the grouped movement state information and the population information.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 21, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Takuya DOUMEN, Tomohiro NAKAGAWA, Kazuya SASAKI
  • Publication number: 20220104388
    Abstract: An optical communication module includes: a circuit board; optical communication devices that are provided on an upper surface side of the circuit board; a case that accommodates the circuit board and the optical communication devices; and a heatsink that is attached to the case. The optical communication devices include a first device and a second device. The first device is located closer to an inlet opening for cooling air for cooling the heatsink than the second device is. A height from the circuit board to a top of the first device is greater than a height from the circuit board to a top of the second device. The heatsink is not equipped with a cooling fin in a first region where the first device is provided, and the heatsink is equipped with a cooling fin in a second region where the second device is provided.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 31, 2022
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Kazuya SASAKI, Takatoshi YAGISAWA, Tsutomu OHTSU, Masami KAMIOKA
  • Publication number: 20220034027
    Abstract: Provided is a porous layer structure including a base material (A) and a urethane foam layer provided on the base material (A), wherein the urethane foam layer is a foam layer formed by foaming a urethane prepolymer having an isocyanate group, the urethane foam layer has a density of 0.10 to 0.60 g/cm3, and the urethane prepolymer substantially contains no volatile component and satisfies a predetermined composition.
    Type: Application
    Filed: September 20, 2019
    Publication date: February 3, 2022
    Applicant: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Ryo KAWAMURA, Toshiki YAMADA, Kazuya SASAKI
  • Publication number: 20220024498
    Abstract: Purpose is to enable communication with a vehicle installation installed in a vehicle in a manner that facilitates implementation of a security measure and with high sensitivity and at low cost. An in-vehicle communication system includes an interior light with communication function, a seat and a display device, the interior light with communication function including a LED configured to transmit information to the seat and the display device via visible light communication, and the seat and the display device including light receiving units configured to receive information transmitted from the interior light with communication function and control units configured to control themselves based on the information received by the light receiving units.
    Type: Application
    Filed: October 17, 2019
    Publication date: January 27, 2022
    Inventors: Kazuya Sasaki, Takayuki Araki, Shuhei Kojima, Junichi Kusano
  • Publication number: 20220030378
    Abstract: A check-in determination apparatus 1 configured to determine check-in indicating that a terminal 2 has entered a geofence which is a prescribed geographic area includes: a related geofence information storage unit 12 configured to store related geofence information in which a related geofence which is another geofence is correlated with each geofence on the basis of a distance to the geofence; a check-in determination unit 14 configured to determine check-in of the terminal 2 sequentially with respect to each of the geofences. When it is determined that the terminal 2 has checked into one geofence, the check-in determination unit 14 excludes the related geofence correlated with the one geofence in the related geofence information stored by the related geofence information storage unit 12 from determination targets in subsequent determination.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 27, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Tadashi OKAMINE, Kazuya SASAKI, Shoichi HORIGUCHI, Masatoshi KIMOTO
  • Publication number: 20220022157
    Abstract: A check-in determination apparatus 1 includes: a determination history information storage unit 13 configured to store determination history information for each terminal 2, in which position identifying information capable of identifying a position of the terminal 2 when check-in of the terminal 2 with respect to the geofence was determined is correlated with geofence identifying information capable of identifying the geofence; a related geofence information storage unit 12 configured to store related geofence information that correlates another geofence with each geofence; a position identifying information acquisition unit 14 configured to acquire position identifying information of the terminal 2; and a check-in determination unit 15 configured to determine check-in of the terminal 2 with respect to the geofence determined on the basis of the acquired position identifying information of the terminal 2, the stored determination history information, and the stored related geofence information.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 20, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Tadashi OKAMINE, Kazuya SASAKI, Shoichi HORIGUCHI, Masatoshi KIMOTO
  • Publication number: 20220007143
    Abstract: An object is to provide a population distribution aggregation calculation device which can calculate a population distribution of high accuracy.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 6, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro NAKAGAWA, Takuya DOUMEN, Kazuya SASAKI