Patents by Inventor Akihiro YAMAGATA

Akihiro YAMAGATA 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: 11850843
    Abstract: A printing system, including a first printing part, a second printing part that is disposed downstream of the first printing part in the conveying direction of a medium, and a conveyance mechanism that conveys the medium The conveyance mechanism includes a passage detection sensor, a conveyor roller, and a resist roller that is disposed downstream in the conveying direction from the passage detection sensor and the conveyor roller, that is butted by the medium, and that conveys the medium slackened due to the butting. The printing system further includes a controller configured to control the conveyor roller so that the slack amount of the subsequent medium is constant based on the conveyance status of the preceding medium and the detection time of the leading edge of the subsequent medium detected by the passage detection sensor.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: December 26, 2023
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Akihiro Yamagata, Ryo Terakado, Hirokazu Yabune
  • Publication number: 20230260340
    Abstract: A deterioration estimation device that is provided in an in-vehicle component (such as an ECU) mounted in a vehicle includes a processor, and the processor is configured to acquire information about a temperature variation of the in-vehicle component based on electric power generated by a solar panel mounted in the vehicle, and estimate deterioration of the in-vehicle component based on the acquired information about the temperature variation of the in-vehicle component.
    Type: Application
    Filed: December 19, 2022
    Publication date: August 17, 2023
    Inventor: Akihiro YAMAGATA
  • Publication number: 20220288952
    Abstract: A printing system, including a first printing part, a second printing part that is disposed downstream of the first printing part in the conveying direction of a medium, and a conveyance mechanism that conveys the medium The conveyance mechanism includes a passage detection sensor, a conveyor roller, and a resist roller that is disposed downstream in the conveying direction from the passage detection sensor and the conveyor roller, that is butted by the medium, and that conveys the medium slackened due to the butting. The printing system further includes a controller configured to control the conveyor roller so that the slack amount of the subsequent medium is constant based on the conveyance status of the preceding medium and the detection time of the leading edge of the subsequent medium detected by the passage detection sensor.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 15, 2022
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Akihiro YAMAGATA, Ryo TERAKADO, Hirokazu YABUNE
  • Publication number: 20210140443
    Abstract: An FRP impeller for a vehicle turbocharger includes a boss portion, a disk portion, and a plurality of blade portions. The disk portion includes a front surface on which the blade portions are formed, and a rear surface located opposite the front surface in the axis direction. The disk portion has, on the rear surface, an end edge being annular and located on another side of the axis direction, and a recessed portion formed inward of the end edge in the radius direction and recessed more toward the one side of the axis direction than the end edge. The recessed portion includes a planar surface being annular, located at a bottom portion of the recessed portion farthest from the end edge in the axis direction, and extending along the radius direction.
    Type: Application
    Filed: June 15, 2018
    Publication date: May 13, 2021
    Applicant: IHI Corporation
    Inventors: Akihiro YAMAGATA, Takaomi INADA, Atsushi YASUMURO
  • Patent number: 10781059
    Abstract: A bag in which a content is put and of which a mouth portion is not sealed, is disposed in a substantially horizontal attitude in a takeoff area. A height direction position of an expected hold part of the bag and a height direction position of a hold member are caused to correspond to each other. The hold member is caused to hold the expected hold part of the bag disposed in the takeoff area in a state where the height direction position of the expected hold part of the bag and the height direction position of the hold member correspond to each other. The hold member is moved to transfer the bag from the takeoff area to a delivery area after the hold member holds the expected hold part of the bag disposed in the takeoff area.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 22, 2020
    Assignee: TOYO JIDOKI CO., LTD.
    Inventors: Manabu Morino, Akihiro Yamagata, Kazuo Fukunaga, Yasuyuki Honda
  • Patent number: 10532841
    Abstract: A method and an apparatus of supplying a bag are provided in which position information on a bag width in a direction parallel to a conveyance path at a part in a neighborhood of a bag opening of a conveyed bag and position information on a center of the bag width are obtained, an intermittent conveyance distance of a conveyance unit is adjusted based on the position information on the center of the bag width so that the center of the bag width of the bag stopping at a takeoff position is placed on a reference plane, and an interval of the pair of holding members positioned at the takeoff position is adjusted based on the position information on the bag width.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: January 14, 2020
    Assignee: TOYO JIDOKI CO., LTD.
    Inventors: Akihiro Yamagata, Shinobu Nishiguchi, Yasuyuki Honda, Kazuo Fukunaga, Manabu Morino
  • Publication number: 20190352109
    Abstract: A bag in which a content is put and of which a mouth portion is not sealed, is disposed in a substantially horizontal attitude in a takeoff area. A height direction position of an expected hold part of the bag and a height direction position of a hold member are caused to correspond to each other. The hold member is caused to hold the expected hold part of the bag disposed in the takeoff area in a state where the height direction position of the expected hold part of the bag and the height direction position of the hold member correspond to each other. The hold member is moved to transfer the bag from the takeoff area to a delivery area after the hold member holds the expected hold part of the bag disposed in the takeoff area.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 21, 2019
    Inventors: Manabu MORINO, Akihiro YAMAGATA, Kazuo FUKUNAGA, Yasuyuki HONDA
  • Publication number: 20180339870
    Abstract: A method and an apparatus of supplying a bag are provided in which position information on a bag width in a direction parallel to a conveyance path at a part in a neighborhood of a bag opening of a conveyed bag and position information on a center of the bag width are obtained, an intermittent conveyance distance of a conveyance unit is adjusted based on the position information on the center of the bag width so that the center of the bag width of the bag stopping at a takeoff position is placed on a reference plane, and an interval of the pair of holding members positioned at the takeoff position is adjusted based on the position information on the bag width.
    Type: Application
    Filed: May 23, 2018
    Publication date: November 29, 2018
    Inventors: Akihiro YAMAGATA, Shinobu NISHIGUCHI, Yasuyuki HONDA, Kazuo FUKUNAGA, Manabu MORINO
  • Patent number: 10023331
    Abstract: A continuous conveying type bag filling and packaging machine including multiple groups of grippers (2) continuously traveling along a racetrack-shaped annular path and, as the grippers (2) complete a single revolution, carries out various packaging operations, wherein a measuring hopper (42) is provided above each elevating hopper (37) and is continuously rotated in conjunction therewith. The measuring hopper (42) has a shutter (44). A weight detector (46), along with a shutter actuation mechanism (47), is provided so as to correspond to each measuring hopper (42) and is continuously rotated in conjunction therewith. If, based on a detection signal from the weight detector (46), it is determined that the weight of the material to be packaged that is supplied to the measuring hopper (42) exceeds the upper limit value of the allowable range, the corresponding shutter actuation mechanism (47) is not actuated, and the shutter (44) is maintained closed.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: July 17, 2018
    Assignee: Toyo Jidoki Co., Ltd.
    Inventor: Akihiro Yamagata
  • Patent number: 9358816
    Abstract: Upon a misfeeding of any of second and subsequent sheets in paper feeding by a paper feeding unit during duplex printing, a controller drives the paper feeding unit to perform a paper feeding retry at one or more of paper feeding timings in a paper feeding schedule for duplex printing. The paper feeding schedule for duplex printing specifies the paper feeding timings by the paper feeding unit and paper refeeding timings by a paper refeeding unit for a case other than the misfeeding of any of the second and subsequent sheets in the paper feeding by the paper feeding unit such that the sheet refed from the paper refeeding unit and the sheet fed from the paper feeding unit are alternately conveyed to a printing unit.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: June 7, 2016
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Akihiro Yamagata, Masashi Hara
  • Publication number: 20160114602
    Abstract: Upon a misfeeding of any of second and subsequent sheets in paper feeding by a paper feeding unit during duplex printing, a controller drives the paper feeding unit to perform a paper feeding retry at one or more of paper feeding timings in a paper feeding schedule for duplex printing. The paper feeding schedule for duplex printing specifies the paper feeding timings by the paper feeding unit and paper refeeding timings by a paper refeeding unit for a case other than the misfeeding of any of the second and subsequent sheets in the paper feeding by the paper feeding unit such that the sheet refed from the paper refeeding unit and the sheet fed from the paper feeding unit are alternately conveyed to a printing unit.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 28, 2016
    Inventors: Akihiro YAMAGATA, Masashi HARA
  • Patent number: 8864132
    Abstract: Upon continuous feeding of a plurality of sheets and upon detection of a leading end of a sheet by a detection unit before an elapse of a first time after a start of a paper feed roller, a controller performs control such that a paper conveyance speed of the paper feed roller is set lower than a paper conveyance speed of a registration roller, and the paper feed roller is stopped after conveying the sheet having the leading end detected for a specified conveyance distance before a next timing of starting the registration roller.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 21, 2014
    Assignee: Riso Kagaku Corporation
    Inventor: Akihiro Yamagata
  • Patent number: 8840217
    Abstract: A sheet supply device includes registration rollers for feeding a print sheet, a sheet supply roller for feeding a print sheet to the registration rollers, and a controller configured to control the registration rollers and the sheet supply roller. The controller is operable to start first rotation of the sheet supply roller to contact a leading edge of the print sheet to a nip between the registration rollers to form a slack of the print sheet, stop the first rotation after the slack is formed, start rotation of the registration rollers after the first rotation is stopped, start second rotation of the sheet supply roller after the rotation of the registration rollers is started, and keep a speed difference between a feed speed of the registration rollers and a feed speed of the sheet supply rollers until the slack is flattened. According to the device, noises can be reduced.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: September 23, 2014
    Assignee: Riso Kagaku Corporation
    Inventor: Akihiro Yamagata
  • Patent number: 8814163
    Abstract: A paper feeder includes a resist roller configured to convey a sheet to an image formation unit, a paper feed roller configured to convey a sheet to the resist roller, and a controller configured to control the paper feed roller such that the paper feed roller first conveys a sheet at a first conveying speed and then conveys the sheet while decelerating from the first conveying speed to a second conveying speed slower than the first conveying speed. The controller sets the first and second conveying speeds in advance to speeds which allow the paper feed roller to convey a single sheet by a predetermined conveying amount in a predetermined driving time period. The controller determines a time point to start a deceleration from the first conveying speed to the second conveying speed to allow a sheet to hit the resist roller at the second conveying speed.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 26, 2014
    Assignee: Riso Kagaku Corporation
    Inventor: Akihiro Yamagata
  • Publication number: 20140232055
    Abstract: Upon continuous feeding of a plurality of sheets and upon detection of a leading end of a sheet by a detection unit before an elapse of a first time after a start of a paper feed roller, a controller performs control such that a paper conveyance speed of the paper feed roller is set lower than a paper conveyance speed of a registration roller, and the paper feed roller is stopped after conveying the sheet having the leading end detected for a specified conveyance distance before a next timing of starting the registration roller.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 21, 2014
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Akihiro YAMAGATA
  • Patent number: 8794625
    Abstract: A sheet supply device includes registration rollers for feeding a print sheet to a print unit, feed rollers for feeding a print sheet to the registration rollers, and a controller for controlling the registration rollers and the feed rollers. The controller starts first rotation of the feed rollers to contact a leading edge of the print sheet to the registration rollers to form a slack with a predetermined slack amount, stops the first rotation after the slack is formed, starts rotation of the registration rollers after the first rotation is stopped to reduce a slack amount of the slack, and starts second rotation of the feed rollers after the rotation of the registration rollers is started so as to make the slack remained until a trailing edge of the print sheet passes through the feed rollers. According to the sheet supply device, noises during feeding print sheets can be reduced.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: August 5, 2014
    Assignee: Riso Kagaku Corporation
    Inventor: Akihiro Yamagata
  • Publication number: 20140027972
    Abstract: A sheet supply device includes registration rollers for feeding a print sheet to a print unit, feed rollers for feeding a print sheet to the registration rollers, and a controller for controlling the registration rollers and the feed rollers. The controller starts first rotation of the feed rollers to contact a leading edge of the print sheet to the registration rollers to form a slack with a predetermined slack amount, stops the first rotation after the slack is formed, starts rotation of the registration rollers after the first rotation is stopped to reduce a slack amount of the slack, and starts second rotation of the feed rollers after the rotation of the registration rollers is started so as to make the slack remained until a trailing edge of the print sheet passes through the feed rollers. According to the sheet supply device, noises during feeding print sheets can be reduced.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 30, 2014
    Inventor: Akihiro YAMAGATA
  • Publication number: 20130342602
    Abstract: A sheet supply device includes registration rollers for feeding a print sheet, a sheet supply roller for feeding a print sheet to the registration rollers, and a controller configured to control the registration rollers and the sheet supply roller. The controller is operable to start first rotation of the sheet supply roller to contact a leading edge of the print sheet to a nip between the registration rollers to form a slack of the print sheet, stop the first rotation after the slack is formed, start rotation of the registration rollers after the first rotation is stopped, start second rotation of the sheet supply roller after the rotation of the registration rollers is started, and keep a speed difference between a feed speed of the registration rollers and a feed speed of the sheet supply rollers until the slack is flattened. According to the device, noises can be reduced.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 26, 2013
    Inventor: Akihiro YAMAGATA
  • Publication number: 20130298499
    Abstract: A continuous conveying type bag filling and packaging machine including multiple groups of grippers (2) continuously traveling along a racetrack-shaped annular path and, as the grippers (2) complete a single revolution, carries out various packaging operations, wherein a measuring hopper (42) is provided above each elevating hopper (37) and is continuously rotated in conjunction therewith. The measuring hopper (42) has a shutter (44). A weight detector (46), along with a shutter actuation mechanism (47), is provided so as to correspond to each measuring hopper (42) and is continuously rotated in conjunction therewith. If, based on a detection signal from the weight detector (46), it is determined that the weight of the material to be packaged that is supplied to the measuring hopper (42) exceeds the upper limit value of the allowable range, the corresponding shutter actuation mechanism (47) is not actuated, and the shutter (44) is maintained closed.
    Type: Application
    Filed: April 18, 2013
    Publication date: November 14, 2013
    Inventor: Akihiro Yamagata
  • Publication number: 20120256365
    Abstract: A paper feeder includes a resist roller configured to convey a sheet to an image formation unit, a paper feed roller configured to convey a sheet to the resist roller, and a controller configured to control the paper feed roller such that the paper feed roller first conveys a sheet at a first conveying speed and then conveys the sheet while decelerating from the first conveying speed to a second conveying speed slower than the first conveying speed. The controller sets the first and second conveying speeds in advance to speeds which allow the paper feed roller to convey a single sheet by a predetermined conveying amount in a predetermined driving time period. The controller determines a time point to start a deceleration from the first conveying speed to the second conveying speed to allow a sheet to hit the resist roller at the second conveying speed.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 11, 2012
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Akihiro YAMAGATA