Patents by Inventor Yoshitaka Tokoro

Yoshitaka Tokoro 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: 20230391567
    Abstract: A document sheet conveying device includes a sheet feed tray lift mechanism, a top plate portion, a fixed wall portion, and a lifted wall portion. The sheet feed tray lift mechanism lifts up and down a sheet feed tray. The top plate portion is adjacent to the sheet feed tray at a downstream side, in a sheet feed direction, of the sheet feed tray, and is contacted by a lower surface of a document sheet having been fed. The fixed wall portion is provided to extend downward from an upstream end, in the sheet feed direction, of the top plate portion, and the position of the fixed wall portion is fixed. The lifted wall portion extends upward from a downstream end of the sheet feed tray in the sheet feed direction and is lifted up and down along the fixed wall portion together with the sheet feed tray.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 7, 2023
    Inventors: Takafumi Nakagawa, Yoshitaka Tokoro, Ren Isoda, Hirofumi Hagihara
  • Publication number: 20230382674
    Abstract: The document sheet conveying device includes a second discharge tray, and a switching portion. The second discharge tray rotates between a use posture which allows loading of a document sheet on the second discharge tray and a storage posture in which the second discharge tray serves as a part of the conveyance housing. The switching portion connects a first conveying path formed from a supply tray to a branch point inside the conveyance housing to one of a second conveying path formed from the branch point to a first discharge tray and a third conveying path formed from the branch point to the second discharge tray. The switching portion connects the first conveying path to the third conveying path when the posture of the second discharge tray has been changed to the use posture in a state where the first conveying path is connected to the second conveying path.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 30, 2023
    Inventors: Yoshitaka Tokoro, Takafumi Nakagawa, Hirofumi Hagihara, Ren Isoda
  • Publication number: 20230322517
    Abstract: A document sheet conveying device includes a guide portion, a swinging shaft, a sheet member, and a biasing member. The guide portion guides a document sheet to the discharge tray. The swinging shaft is provided at an upstream end of the guide portion in a conveyance direction of the document sheet and swingably supports the guide portion with a width direction of the document sheet as an axis direction. One end of the sheet member is fixed to an upstream end of the discharge tray in the conveyance direction, and the other end is supported by the guide portion. As the guide portion is lifted up, the sheet member is drawn out from a part of the guide portion lower than the discharge outlet. The biasing member biases in a direction in which the sheet member is drawn into the guide portion.
    Type: Application
    Filed: April 10, 2023
    Publication date: October 12, 2023
    Inventors: Takafumi Nakagawa, Yoshitaka Tokoro, Ren Isoda, Hirofumi Hagihara
  • Publication number: 20230286770
    Abstract: A document conveying device includes a sheet feeding tray, a discharge tray, a conveying mechanism and a document pressing member. On the sheet feeding tray, a document is placed. The discharge tray is provided below the sheet feeding tray. The conveying mechanism conveys the document from the sheet feeding tray to the discharge tray via a reading position. The document pressing member is provided on a lower surface of the sheet feeding tray, is capable of protruding and contracting in directions close to and away from the discharge tray, and presses the document discharged on the discharge tray.
    Type: Application
    Filed: March 3, 2023
    Publication date: September 14, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hirofumi HAGIHARA, Yoshitaka Tokoro, Takafumi Nakagawa
  • Publication number: 20230192427
    Abstract: A document conveying device according to the present disclosure includes a sheet feeding tray, a discharge tray, a feeding roller, a first lifting mechanism, a conveying mechanism, a support member and a second mechanism. On the sheet feeding tray, a document is stacked. The discharge tray is provided below the sheet feeding tray. The feeding roller feeds the document on the sheet feeding tray. The first lifting mechanism supports both end portions of the sheet feeding tray in a width direction intersecting a conveying direction of the document, and lifts and lowers the sheet feeding tray such that an upper surface of the document comes in contact with the feeding roller. The support member supports the sheet feeding feed tray on an upstream side of the first lifting mechanism in the conveying direction. The second lifting mechanism lifts and lowers the support member in synchronization with the sheet feeding tray.
    Type: Application
    Filed: December 12, 2022
    Publication date: June 22, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Yoshitaka TOKORO, Takafumi NAKAGAWA
  • Patent number: 11652938
    Abstract: An image forming apparatus includes a sheet feeding tray, a sheet discharge tray, and a conveyance mechanism. The conveyance mechanism includes a guide part, a first turning shaft, a second turning shaft, a coupling member and a drive part. The guide part has a sheet discharge port. The first turning shaft supports the guide part so as to be turned around an axis along a width direction crossing to the conveyance direction. The second turning shaft is provided on the downstream side of the first turning shaft and below the guide part. The coupling member has one end portion supported by the second turning shaft in a turnable manner and the other end portion provided so as to be slidable with respect to the guide part. The drive part turns the coupling member around the second turning shaft to change a height of the sheet discharge port.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: May 16, 2023
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoshitaka Tokoro, Takafumi Nakagawa
  • Patent number: 11572246
    Abstract: Provided is a document conveying apparatus that properly discharges documents regardless of the amount of documents stacked on a discharge tray without complicated construction of a transmission mechanism for transmitting a driving force to conveying rollers. A conveying roller pair is provided at an end portion on an upstream side. A swing mechanism swings a discharge mechanism centered around a drive shaft of the conveying roller pair. An upper surface height measuring unit measures the height of the upper surface of documents stacked on the discharge tray. A control unit, by causing the swing mechanism to swing the discharge mechanism according to the height measured by the upper surface height measuring unit, performs control so that the difference between a discharge port and the upper surface of the documents stacked on the discharge tray is within a specified range.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: February 7, 2023
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoshiaki Tashiro, Yoshitaka Tokoro, Kenichiro Kawasaki, Takafumi Nakagawa, Hirofumi Hagihara
  • Publication number: 20220263961
    Abstract: An image forming apparatus includes a sheet feeding tray, a sheet discharge tray, and a conveyance mechanism. The conveyance mechanism includes a guide part, a first turning shaft, a second turning shaft, a coupling member and a drive part. The guide part has a sheet discharge port. The first turning shaft supports the guide part so as to be turned around an axis along a width direction crossing to the conveyance direction. The second turning shaft is provided on the downstream side of the first turning shaft and below the guide part. The coupling member has one end portion supported by the second turning shaft in a turnable manner and the other end portion provided so as to be slidable with respect to the guide part. The drive part turns the coupling member around the second turning shaft to change a height of the sheet discharge port.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 18, 2022
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Yoshitaka TOKORO, Takafumi NAKAGAWA
  • Patent number: 11390481
    Abstract: A document conveyance apparatus includes a first conveyance path, a first image reading part, a curved second conveyance path, a third conveyance path, a branch guide, a first discharge port, a document stacking section, a second discharge port and a tray support part. The first conveyance path extends linearly. The curved second conveyance path is branched from the first conveyance path at a branch point. The third conveyance path is branched from the first conveyance path at the branch point and extends linearly. Through the first discharge port, the document conveyed along the second conveyance path is discharged. The document stacking section is provided with a discharge tray. Through the second discharge port, the document conveyed along the third conveyance path is discharged. To the tray support part, the detached discharge tray is supported such that the document discharged through the second discharge port is stacked.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 19, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kenichiro Kawasaki, Yoshiaki Tashiro, Yoshitaka Tokoro, Takafumi Nakagawa, Hirofumi Hagihara
  • Patent number: 11252294
    Abstract: A document conveyance apparatus includes a first conveyance path, a first image reading part, a second conveyance path, a third conveyance path and a branch guide. The first conveyance path extends linearly. The first image reading part reads an image on one face of the document conveyed along the first conveyance path. The second conveyance path branches from the first conveyance path at a branch point on a downstream side of the first reading part in a conveyance direction of the document and is formed to be curved. The third conveyance path branches from the first conveyance path at the branch point and extends linearly in a same extending direction as an extending direction of the first conveyance path. The branch guide is provided at the branch point and guides the document to the second conveyance path or to the third conveyance path.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: February 15, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Takafumi Nakagawa, Yoshiaki Tashiro, Kenichiro Kawasaki, Yoshitaka Tokoro, Hirofumi Hagihara
  • Patent number: 11016596
    Abstract: In an input device: a position detection portion includes a main surface that faces up, and detects a position where an external force is applied on the main surface; a cover member is separated upward from a specific portion of the main surface, covers the specific portion, and exposes an operation portion of the main surface excluding the specific portion; a base portion is provided to be in contact with the cover member, above a separate portion that is a portion of the specific portion and is separated from the operation portion; and a flexible portion extends from the base portion toward the operation portion, and is in contact with an adjacent portion that is a portion of the specific portion and is located between the operation portion and the separate portion, the flexible portion being separated downward from the cover member and flexible with respect to the base portion.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 25, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoshitaka Tokoro, Yoshiaki Tashiro
  • Publication number: 20210114834
    Abstract: Provided is a document conveying apparatus that properly discharges documents regardless of the amount of documents stacked on a discharge tray without complicated construction of a transmission mechanism for transmitting a driving force to conveying rollers. A conveying roller pair is provided at an end portion on an upstream side. A swing mechanism swings a discharge mechanism centered around a drive shaft of the conveying roller pair. An upper surface height measuring unit measures the height of the upper surface of documents stacked on the discharge tray. A control unit, by causing the swing mechanism to swing the discharge mechanism according to the height measured by the upper surface height measuring unit, performs control so that the difference between a discharge port and the upper surface of the documents stacked on the discharge tray is within a specified range.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 22, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Yoshiaki TASHIRO, Yoshitaka TOKORO, Kenichiro KAWASAKI, Takafumi NAKAGAWA, Hirofumi HAGIHARA
  • Publication number: 20210101769
    Abstract: A document conveyance apparatus includes a first conveyance path, a first image reading part, a curved second conveyance path, a third conveyance path, a branch guide, a first discharge port, a document stacking section, a second discharge port and a tray support part. The first conveyance path extends linearly. The curved second conveyance path is branched from the first conveyance path at a branch point. The third conveyance path is branched from the first conveyance path at the branch point and extends linearly. Through the first discharge port, the document conveyed along the second conveyance path is discharged. The document stacking section is provided with a discharge tray. Through the second discharge port, the document conveyed along the third conveyance path is discharged. To the tray support part, the detached discharge tray is supported such that the document discharged through the second discharge port is stacked.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 8, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Kenichiro KAWASAKI, Yoshiaki TASHIRO, Yoshitaka TOKORO, Takafumi NAKAGAWA, Hirofumi HAGIHARA
  • Publication number: 20210099593
    Abstract: A document conveyance apparatus includes a first conveyance path, a first image reading part, a second conveyance path, a third conveyance path and a branch guide. The first conveyance path extends linearly. The first image reading part reads an image on one face of the document conveyed along the first conveyance path. The second conveyance path branches from the first conveyance path at a branch point on a downstream side of the first reading part in a conveyance direction of the document and is formed to be curved. The third conveyance path branches from the first conveyance path at the branch point and extends linearly in a same extending direction as an extending direction of the first conveyance path. The branch guide is provided at the branch point and guides the document to the second conveyance path or to the third conveyance path.
    Type: Application
    Filed: September 22, 2020
    Publication date: April 1, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Takafumi NAKAGAWA, Yoshiaki TASHIRO, Kenichiro KAWASAKI, Yoshitaka TOKORO, Hirofumi HAGIHARA
  • Patent number: 10824096
    Abstract: An image forming apparatus includes an intermediate transfer belt, an image forming device, a brush roller, a bias application device, and a controller. The bias application device applies, between the intermediate transfer belt and the brush roller, a bias for shifting a charged residual toner from the intermediate transfer belt to the brush roller. The controller controls, in a period in which calibration or maintenance is executed, the bias application device to set an application amount of the bias at a predefined first value only in a specified time zone in which the residual toner is present on the intermediate transfer belt and to set the application amount of the bias at a predefined second value smaller than the first value in time zones other than the specified time zone.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: November 3, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoshitaka Tokoro, Tetsuya Toichi
  • Publication number: 20200301320
    Abstract: An image forming apparatus includes an intermediate transfer belt, an image forming device, a brush roller, a bias application device, and a controller. The bias application device applies, between the intermediate transfer belt and the brush roller, a bias for shifting a charged residual toner from the intermediate transfer belt to the brush roller. The controller controls, in a period in which calibration or maintenance is executed, the bias application device to set an application amount of the bias at a predefined first value only in a specified time zone in which the residual toner is present on the intermediate transfer belt and to set the application amount of the bias at a predefined second value smaller than the first value in time zones other than the specified time zone.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 24, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Yoshitaka TOKORO, Tetsuya TOICHI
  • Patent number: 10656883
    Abstract: In a push button portion of a button member, a first supported portion is supported by a push-in portion of a push-in type switch. A second supported portion is supported in a second area by an electronic board. The second area is adjacent to one side of the electronic component. The push-in type switch is present in a first area which is adjacent to another side of the electronic component that is opposite to the one side. An elastic portion connects a portion including the second supported portion to a portion including the push button portion and the first supported portion. A plurality of guided portions are restricted by a plurality of guide projection portions projecting from an exterior member, from being displaced in a direction intersecting a depth direction. The plurality of guide projection portions are provided in the first area and the second area.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: May 19, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoshitaka Tokoro, Yoshiaki Tashiro
  • Publication number: 20200073506
    Abstract: In an input device: a position detection portion includes a main surface that faces up, and detects a position where an external force is applied on the main surface; a cover member is separated upward from a specific portion of the main surface, covers the specific portion, and exposes an operation portion of the main surface excluding the specific portion; a base portion is provided to be in contact with the cover member, above a separate portion that is a portion of the specific portion and is separated from the operation portion; and a flexible portion extends from the base portion toward the operation portion, and is in contact with an adjacent portion that is a portion of the specific portion and is located between the operation portion and the separate portion, the flexible portion being separated downward from the cover member and flexible with respect to the base portion.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Inventors: Yoshitaka Tokoro, Yoshiaki Tashiro
  • Publication number: 20200065038
    Abstract: In a push button portion of a button member, a first supported portion is supported by a push-in portion of a push-in type switch. A second supported portion is supported in a second area by an electronic board. The second area is adjacent to one side of the electronic component. The push-in type switch is present in a first area which is adjacent to another side of the electronic component that is opposite to the one side. An elastic portion connects a portion including the second supported portion to a portion including the push button portion and the first supported portion. A plurality of guided portions are restricted by a plurality of guide projection portions projecting from an exterior member, from being displaced in a direction intersecting a depth direction. The plurality of guide projection portions are provided in the first area and the second area.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 27, 2020
    Inventors: Yoshitaka Tokoro, Yoshiaki Tashiro
  • Patent number: 10139752
    Abstract: A shutter member of a toner case includes a compatible key and an engaged portion. A storage portion for storing the toner case includes a compatible member rockably supported at a position that faces the shutter member during an insertion process of the toner case. The compatible member includes a first contact portion and a first engaging portion. The first contact portion is located on a forward side of a rocking shaft of the compatible member in the insertion direction. The first engaging portion is located on a backward side of the rocking shaft in the insertion direction. During an insertion process of the toner case, the first engaging portion of the compatible member is engaged with the engaged portion so that the shutter member moves from a closing position to an opening position.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: November 27, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Koji Murata, Yoshitaka Tokoro