Patents by Inventor Hiroaki Saito

Hiroaki Saito 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: 11639404
    Abstract: A method for producing a vinyl polymer including a polymerization step of using a composition including a microcapsule and polymerizing a vinyl monomer by radical reaction to produce a vinyl polymer, in which the microcapsule has a core/shell structure, and the shell includes a water-soluble polymer and the core includes an organic peroxide. The water-soluble polymer is preferably at least one water-soluble polymer selected from the group consisting of polyvinyl alcohol, cellulose derivatives, gelatin, poly(meth)acrylic acid derivatives, polyvinylpyrrolidone, and polyethylene oxide.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 2, 2023
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroaki Saito, Toshihiko Kawakubo
  • Publication number: 20230129501
    Abstract: A vehicle entry-and-exit assistance device easily moves a board between a housed position and a using position. Embodiments include a board at an outer side of a seat adjacent to a door opening, the board rotatable between a horizontal posture and an orthogonal posture; a board support portion rotatable between a seat side-position and a flipped-up position; and a linking mechanism. The board pivots around an axis orthogonal to the vehicle width direction, and the support portion pivots around an axis extending in the vehicle width direction. The linking mechanism rotates the board to a vehicle-width-direction inner side with respect to the support portion to take the orthogonal posture when the support portion is rotated to the flipped-up position, and rotates the board to a vehicle-width-direction outer side with respect to the support portion to take the horizontal posture when the support portion is rotated to the seat side-position.
    Type: Application
    Filed: January 22, 2021
    Publication date: April 27, 2023
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takeshi SASAKI, Hiroaki TAKAYASU, Daisuke TOKUDA, Kunihiko KURISU, Hiroaki SAITO, Takanori UMETSU
  • Patent number: 11623144
    Abstract: An intervention server according to an aspect of the present invention includes a receiver, a filter, and an intervener. The receiver receives pieces of first user input information from a plurality of audience terminals to which a live play video of a game is distributed. The filter filters the pieces of the first user input information. The intervener intervenes in a progress of the game based on the filtered pieces of the first user input information.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: April 11, 2023
    Assignee: Dwango Co., Ltd.
    Inventors: Nobuo Kawakami, Hiroaki Saito, Takashi Kojima
  • Patent number: 11625858
    Abstract: A rear-facing camera captures a live-action video image while a front-facing camera captures an image of a distributor. An avatar controller controls an avatar based on the image of the distributor captured by the front-facing camera. A synthesizer arranges the avatar in a predetermined position of a real space coordinate system and synthesizes the avatar with the live-action video image. The face of the distributor captured by the front-facing camera is tracked and reflected on the avatar.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: April 11, 2023
    Assignee: Dwango Co., Ltd.
    Inventors: Nobuo Kawakami, Shinnosuke Iwaki, Takashi Kojima, Toshihiro Shimizu, Hiroaki Saito
  • Publication number: 20230069695
    Abstract: A scroll compressor is provided that can prevent liquid from being accumulated with a simple structure. The scroll compressor includes: a fixed scroll 11; an orbiting scroll 12; and a rotation shaft 13 that extends in the horizontal direction and causes the orbiting scroll 12 to orbit relative to the fixed scroll 11, and liquid is injected to a working chamber at an intake process or to the upstream side thereof. An enclosing point P of a working chamber formed near the outer end of a fixed wrap 16 of the fixed scroll 11 is positioned below a center O of the rotation shaft 13 and at the lowest point of the contour of the working chamber having shifted to the lowest position. The fixed scroll 11 has an inclined wall surface 33 that is positioned below the center 0 of the rotation shaft 13, is made to face upward, and extends from the dust wrap 17 to the outer end of the fixed wrap 16.
    Type: Application
    Filed: July 20, 2020
    Publication date: March 2, 2023
    Inventors: Yusuke WATABE, Yoshiyuki KANEMOTO, Yoshio KOBAYASHI, Hiroaki SAITO
  • Patent number: 11585335
    Abstract: A gas compressor includes inverters, a plurality of compressor units and a control device for controlling each of the inverters. The control device increases the number of compressor bodies to be operated after confirming that the rotational speed of the operational motors will reach a steady value immediately after causing the number of the compressor bodies to be operated to increase.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 21, 2023
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Norio Aoyagi, Akihiro Yamamoto, Yoshiyuki Kanemoto, Hiroaki Saito, Fuminori Kato, Daichi Oka
  • Publication number: 20230049410
    Abstract: An avatar display device with: a storage device for storing passive permission data including a permission flag indicating permission or denial of a passive avatar in relation to an action of an active avatar with respect to the passive avatar; and an output unit which, if the action from the active avatar with respect to the passive avatar is detected, and the permission flag in the passive permission data indicates permission, outputs data for displaying, on an active terminal and a passive terminal, moving image data in which the passive avatar accepts the action of the active avatar.
    Type: Application
    Filed: January 20, 2021
    Publication date: February 16, 2023
    Applicant: DWANGO Co., Ltd.
    Inventor: Hiroaki SAITO
  • Publication number: 20230013831
    Abstract: To provide a long-life compression ring without an increase in the outer peripheral abrasion near the gap regardless of the ring material or the presence or absence of the outer peripheral hard coating, in an annular compression ring having a pair of gap faces opposed to each other to form a free gap and a nominal diameter d1 equal to an inner diameter of a cylinder to which the compression ring is attached to along with a piston, a self tangential force is 5 N to 50 N, and a radius of curvature R1 and the nominal diameter d1 satisfy a relationship: ?0.01?(2R1?d1)/d1<0.002 where the radius of curvature R1 is that of outer peripheral arcs of gap end portions in a free shape state before the compression ring is attached to the cylinder, and the gap end portions are defined in ranges between the gap faces and positions where a center angle from a midpoint of the free gap is 35°.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 19, 2023
    Applicant: KABUSHIKI KAISHA RIKEN
    Inventors: Hiroaki SAITO, Yoshio OKADA
  • Publication number: 20230007331
    Abstract: The present disclosure has a configuration in which a distributor who performs a separate distribution that is different from this live content, or a viewer who views this separate distribution can participate in a virtual space and express intent or participate in visual recognition through the commitment of a virtual item.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Applicant: DWANGO Co., Ltd.
    Inventors: Nobuo KAWAKAMI, Shinnosuke IWAKI, Takashi KOJIMA, Toshihiro SHIMIZU, Hiroaki SAITO
  • Patent number: 11542951
    Abstract: The purpose of the present invention is to provide a gas compressor capable of reducing variation in discharge pressure through control of the number of compressor bodies and a control method for the gas compressor. In order to solve the problem, this gas compressor includes a plurality of compressor units each having a compressor body, a motor for driving the compressor body, and an inverter for controlling a rotational speed of the motor, and a control device for controlling the inverters. Discharge pipes of the compressor bodies converge on one main discharge pipe. A drive frequency of the motor of each compressor body is controlled by the corresponding inverter, whereby a pressure of each discharge pipe is controlled and a discharge pressure of the main discharge pipe is controlled.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 3, 2023
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Akihiro Yamamoto, Yoshiyuki Kanemoto, Norio Aoyagi, Hiroaki Saito, Fuminori Kato, Daichi Oka
  • Patent number: 11477507
    Abstract: The present disclosure has a configuration in which a distributor who performs a separate distribution that is different from this live content, or a viewer who views this separate distribution can participate in a virtual space and express intent or participate in visual recognition through the commitment of a virtual item.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: October 18, 2022
    Assignee: DWANGO Co., Ltd.
    Inventors: Nobuo Kawakami, Shinnosuke Iwaki, Takashi Kojima, Toshihiro Shimizu, Hiroaki Saito
  • Patent number: 11401934
    Abstract: An object of the present invention is to provide a rotary displacement compressor capable of determining whether a check valve has failed, and preventing the life of a compressor body from being reduced when a compression operation stops. In order to achieve the object, a rotary displacement compressor includes a compressor body that compresses a medium by reducing a volume of the medium using rotation; a discharge pipe through which a compressed medium, which is discharged through a discharge port of the compressor body, flows; a check valve that shuts off the compressed medium flowing backward to the compressor body; and a backflow control valve that allows a predetermined rate of the compressed medium to flow backward. The check valve and the backflow control valve are disposed in series via the discharge pipe.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: August 2, 2022
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Yoshiyuki Kanemoto, Hiroaki Saito, Akihiro Yamamoto
  • Publication number: 20220232191
    Abstract: There is provided a content distribution device including a virtual character arrangement acquisitor that acquires an arrangement in a virtual space of each of a plurality of virtual characters respectively corresponding to a plurality of participants in accordance with an operation of a corresponding participant, a trigger detector that detects a first trigger and thereafter detects a second trigger, and a display control data distributor that generates and distributes display control data for displaying at least a part of the virtual space in which the plurality of virtual characters is arranged.
    Type: Application
    Filed: June 24, 2020
    Publication date: July 21, 2022
    Applicant: DWANGO Co., Ltd.
    Inventors: Nobuo KAWAKAMI, Takashi KOJIMA, Hiroaki SAITO, Toshihiro SHIMIZU
  • Patent number: 11367260
    Abstract: A rear-facing camera captures a live-action video image while a front-facing camera captures an image of a distributor. The avatar controller controls an avatar based on the image of the distributor captured by the front-facing camera, and move the position of the avatar in the real space coordinate system according to the position of the video synthesis device in the real space coordinate system. A synthesizer arranges the avatar in a predetermined position of a real space coordinate system and synthesizes the avatar with the live-action video image.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: June 21, 2022
    Assignee: DWANGO Co., Ltd.
    Inventors: Nobuo Kawakami, Shinnosuke Iwaki, Takashi Kojima, Toshihiro Shimizu, Hiroaki Saito
  • Patent number: 11331640
    Abstract: A microcapsule includes a core/shell structure, in which the shell includes a water-soluble polymer and the core includes an organic peroxide. The water-soluble polymer is preferably at least one water-soluble polymer selected from the group consisting of polyvinyl alcohol, gelatin, poly(meth)acrylic acid derivatives, polyvinyl pyrrolidone, and polyethylene oxide. The polyvinyl alcohol is preferably partially saponified polyvinyl alcohol having a degree of saponification of 80% by mole or more and 99.5% by mole or less and an average degree of polymerization of 1,500 or more and 3,500 or less.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 17, 2022
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroaki Saito, Toshihiko Kawakubo
  • Publication number: 20220084243
    Abstract: A rear-facing camera captures a live-action video image while a front-facing camera captures an image of a distributor. An avatar controller controls an avatar based on the image of the distributor captured by the front-facing camera. A synthesizer arranges the avatar in a predetermined position of a real space coordinate system and synthesizes the avatar with the live-action video image. The face of the distributor captured by the front-facing camera is tracked and reflected on the avatar.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 17, 2022
    Applicant: DWANGO Co., Ltd.
    Inventors: Nobuo KAWAKAMI, Shinnosuke IWAKI, Takashi KOJIMA, Toshihiro SHIMIZU, Hiroaki SAITO
  • Publication number: 20220049691
    Abstract: There are provided an operation number control device and a method for controlling the same that can level the operation times of the fluid machines, which are connected to the operation number control device. A fluid machine system comprises a plurality of fluid machines, and an operation number control device capable of individually controlling start and stop of the fluid machines. The operation number control device sets a continuous operation time for each of the fluid machines based on total operation times of the fluid machine and other fluid machines. When among fluid machines in operation, there is a fluid machine for which the continuous operation time set for the fluid machine has elapsed and there is a fluid machine at stop, the operation number control device causes the fluid machine at stop to start and causes the fluid machine to stop.
    Type: Application
    Filed: November 29, 2019
    Publication date: February 17, 2022
    Inventors: Norio AOYAGI, Hiroaki SAITO, Fuminori KATO, Daichi OKA, Akihiro YAMAMOTO
  • Patent number: 11240546
    Abstract: An aspect of the present invention provides a server for controlling a camera video image to be distributed to an audience terminal for multi-camera video image distribution service for cyclic distribution of camera video images in a plurality of points of view to audience. The server includes a selector and a decider. The selector selects a plurality of candidates in each of selection opportunities that allow each audience member to select the camera video image to be distributed to the audience terminal. The decider decides the camera video image to be distributed to the audience terminal based on information indicating one of a plurality of options selected by each audience member. At least one of the plurality of candidates selected in at least one of the selection opportunities includes a common camera video image regardless of camera video images viewed by the audience when the plurality of candidates are selected.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 1, 2022
    Assignee: DWANGO Co., Ltd.
    Inventors: Nobuo Kawakami, Hiroaki Saito, Takashi Kojima
  • Patent number: 11240541
    Abstract: The present invention provides: a virtual processing server with which comments are randomly posted to the content which has a small number of viewers and comment posts, thereby liven up the content, a control method for a virtual processing server, a content delivery system, and an application program for a terminal device.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: February 1, 2022
    Assignee: DWANGO Co., Ltd.
    Inventor: Hiroaki Saito
  • Publication number: 20220020496
    Abstract: A diagnostic assistance method for a disease based on an endoscopic image of a digestive organ with use of a convolutional neural network (CNN) trains the CNN using a first endoscopic image of the digestive organ and at least one final diagnosis result of the positivity or the negativity for the disease in the digestive organ, or information corresponding to a severity level, the final diagnosis result being corresponding to the first endoscopic image, and the trained CNN outputs at least one of a probability of the positivity and/or the negativity for the disease in the digestive organ, a severity level of the disease, or a probability corresponding to the invasion depth (infiltration depth) of the disease, based on a second endoscopic image of the digestive organ.
    Type: Application
    Filed: November 21, 2019
    Publication date: January 20, 2022
    Applicant: AI MEDICAL SERVICE INC.
    Inventors: Hiroaki SAITO, Satoki SHICHIJO, Yuma ENDO, Kazuharu AOYAMA, Tomohiro TADA, Atsuo YAMADA, Kentaro NAKAGAWA, Ryu ISHIHARA, Tomonori AOKI, Atsuko TAMASHIRO