Patents by Inventor Takeshi Shintani

Takeshi Shintani 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: 11022831
    Abstract: Damage to a vibrator is reduced, and reliability of a display apparatus of a tactile sensation transmitting type is improved. The display apparatus includes: a display substrate having an operation surface; a support disposed away from the display substrate on an opposite side from the operation surface of the display substrate; a vibrator that is arranged between the display substrate and the support and configured to vibrate the display substrate; and an elastic support member that extends from a display substrate side surface of the support to a surface of the support on an opposite side from the display substrate in a manner wrapping around the support, and has one edge fixed to the surface of the support on the opposite side from the display substrate and the other edge elastically supporting the display substrate.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: June 1, 2021
    Assignee: KYOCERA Corporation
    Inventors: Kouichi Nagasaki, Fumiaki Nakao, Takeshi Shintani
  • Publication number: 20200301186
    Abstract: Damage to a vibrator is reduced, and reliability of a display apparatus of a tactile sensation transmitting type is improved. The display apparatus includes: a display substrate having an operation surface; a support disposed away from the display substrate on an opposite side from the operation surface of the display substrate; a vibrator that is arranged between the display substrate and the support and configured to vibrate the display substrate; and an elastic support member that extends from a display substrate side surface of the support to a surface of the support on an opposite side from the display substrate in a manner wrapping around the support, and has one edge fixed to the surface of the support on the opposite side from the display substrate and the other edge elastically supporting the display substrate.
    Type: Application
    Filed: May 28, 2018
    Publication date: September 24, 2020
    Applicant: KYOCERA Corporation
    Inventors: Kouichi NAGASAKI, Fumiaki NAKAO, Takeshi SHINTANI
  • Patent number: 10768702
    Abstract: A display device includes: a display panel having a display section; an operation panel disposed so as to cover the display panel, the operation panel having an operation surface which is located on an opposite side to a side facing the display panel; vibrating bodies disposed on the operation panel; a support disposed on the side facing the display panel so as to face the operation panel apart therefrom; elastic supporting members disposed between the operation panel and the support, the elastic supporting members being elastically deformable in accordance with vibration of the vibrating bodies; and a ventilatable wall member disposed across the operation panel and the support so as to externally surround the display section, the wall member being composed of a mesh structure deformable in accordance with the vibration of the vibrating bodies.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: September 8, 2020
    Assignee: KYOCERA CORPORATION
    Inventors: Takashi Shimizu, Takeshi Shintani
  • Publication number: 20190358673
    Abstract: A unit and a tactile sensation providing apparatus which enable simplification of the assembly process of the apparatus are provided. The unit is provided with an actuator, a first fixing unit fixable to a base, a second fixing unit, and an elastic member configured to couple the first fixing unit and the second fixing unit together. The second fixing unit is fixable to a vibration object and coupled to the actuator.
    Type: Application
    Filed: December 26, 2018
    Publication date: November 28, 2019
    Applicant: KYOCERA Corporation
    Inventors: Fumiaki NAKAO, Jun TAKEDA, Shigeto HATTORI, Kazushi KOIKE, Takeshi SHINTANI, Takeshi YAMORI, Shun HIROOKA
  • Publication number: 20180284893
    Abstract: A display device includes: a display panel having a display section; an operation panel disposed so as to cover the display panel, the operation panel having an operation surface which is located on an opposite side to a side facing the display panel; vibrating bodies disposed on the operation panel; a support disposed on the side facing the display panel so as to face the operation panel apart therefrom; elastic supporting members disposed between the operation panel and the support, the elastic supporting members being elastically deformable in accordance with vibration of the vibrating bodies; and a ventilatable wall member disposed across the operation panel and the support so as to externally surround the display section, the wall member being composed of a mesh structure deformable in accordance with the vibration of the vibrating bodies.
    Type: Application
    Filed: February 9, 2018
    Publication date: October 4, 2018
    Applicants: KYOCERA Display Corporation, KYOCERA Corporation
    Inventors: Takashi SHIMIZU, Takeshi SHINTANI
  • Patent number: 10018941
    Abstract: A cleaning device includes a cleaning blade disposed in contact with a rotator, a toner collecting section disposed along the rotator and the cleaning blade and includes a groove extending in an axial direction of the rotator, a conveyor disposed in the groove, and an agitator disposed on a side of a rim of the groove. The conveyor rotates to convey the toner in a longitudinal direction of the groove. The agitator vibrates through contact with the conveyor and includes comb-tooth portions lined in a comb shape in the longitudinal direction of the groove, and bent portions, each of which is bent from an end of one of the comb-tooth portions. The comb-tooth portions contact a circumference of the conveyor to vibrate. The bent portions are lined at intervals smaller than intervals on a base side of the comb-tooth portions.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 10, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Tomita, Takeshi Shintani, Hiroshi Mizusawa, Yasuhiro Maehata, Yasuhito Kuboshima, Yuta Azeyanagi
  • Patent number: 9983512
    Abstract: A toner conveyance device includes a downward passage, a reciprocating member disposed in the downward passage, to move in a vertical direction in which the downward passage extends, a conveyance passage communicating with a lower end of the downward passage and extending in a direction crossing the vertical direction, a conveyor to rotate in the conveyance passage around an axis extending along the conveyance passage to transport the toner, and a flexible member projecting from a bottom of the reciprocating member toward the conveyance passage. The flexible member extends in the axial direction of the conveyor and moves together with the reciprocating member. When the reciprocating member is at a lowest position, a lower end of the flexible member opposes a portion of the conveyor downstream from an upper end thereof in a rotation direction thereof.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: May 29, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yusuke Ishizuka, Takeshi Shintani, Yasuhiro Maehata, Hiroshi Mizusawa, Daisuke Tomita, Yuta Azeyanagi, Yasuhito Kuboshima
  • Patent number: 9958823
    Abstract: A device disposed opposing an image bearer includes a roller to rotate while contacting a surface of the image bearer, a rolling bearing fitted around a shaft located at an end of the roller in an axial direction of the roller, a frame to house the roller, and a bearing support removably attached to the frame. The rolling bearing includes an outer ring, an inner ring, and a rolling element disposed between the outer ring and the inner ring. The bearing support holds, from an outer-ring side, the rolling bearing interposed between the bearing support and the frame. The bearing support includes a receiving portion to contact the outer ring of the rolling bearing and bias the rolling bearing toward the frame in a direction in which the rolling bearing is interposed between the bearing support and the frame.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 1, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Tomita, Takeshi Shintani, Yasuhiro Maehata, Yasuhito Kuboshima, Yusuke Ishizuka, Nobuo Kuwabara, Norio Kudoh, Kento Aoki
  • Patent number: 9798288
    Abstract: An image forming apparatus includes an image bearer to bear a toner image, a lubricant supply roller to supply lubricant to a surface of the image bearer, a rotation speed changer to change a rotation speed of the lubricant supply roller, and a controller to control the rotation speed changer to change the rotation speed of the lubricant supply roller to a target speed based on a predetermined condition. The controller is configured to control the rotation speed changer to avoid a predetermined speed range.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 24, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhiro Maehata, Kenji Honjoh, Takeshi Shintani, Nobuo Kuwabara, Daisuke Tomita, Yasuhito Kuboshima, Yusuke Ishizuka
  • Publication number: 20170269511
    Abstract: A cleaning device includes a cleaning blade disposed in contact with a rotator, a toner collecting section disposed along the rotator and the cleaning blade and includes a groove extending in an axial direction of the rotator, a conveyor disposed in the groove, and an agitator disposed on a side of a rim of the groove. The conveyor rotates to convey the toner in a longitudinal direction of the groove. The agitator vibrates through contact with the conveyor and includes comb-tooth portions lined in a comb shape in the longitudinal direction of the groove, and bent portions, each of which is bent from an end of one of the comb-tooth portions. The comb-tooth portions contact a circumference of the conveyor to vibrate. The bent portions are lined at intervals smaller than intervals on a base side of the comb-tooth portions.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 21, 2017
    Inventors: Daisuke TOMITA, Takeshi Shintani, Hiroshi Mizusawa, Yasuhiro Maehata, Yasuhito Kuboshima, Yuta Azeyanagi
  • Publication number: 20170261887
    Abstract: A toner conveyance device includes a downward passage, a reciprocating member disposed in the downward passage, to move in a vertical direction in which the downward passage extends, a conveyance passage communicating with a lower end of the downward passage and extending in a direction crossing the vertical direction, a conveyor to rotate in the conveyance passage around an axis extending along the conveyance passage to transport the toner, and a flexible member projecting from a bottom of the reciprocating member toward the conveyance passage. The flexible member extends in the axial direction of the conveyor and moves together with the reciprocating member. When the reciprocating member is at a lowest position, a lower end of the flexible member opposes a portion of the conveyor downstream from an upper end thereof in a rotation direction thereof.
    Type: Application
    Filed: February 10, 2017
    Publication date: September 14, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Yusuke ISHIZUKA, Takeshi Shintani, Yasuhiro Maehata, Hiroshi Mizusawa, Daisuke Tomita, Yuta Azeyanagi, Yasuhito Kuboshima
  • Patent number: 9696648
    Abstract: An image forming apparatus includes a process cartridge that includes an image bearer including a rotary shaft and rotates about the rotary shaft; a charger to charge a surface of the image bearer; and a developing device to develop an electrostatic latent image formed on the image bearer into a visible toner image. The charger includes a charging roller that rotates about a shaft together with the image bearer during image formation and electrically charges a surface of the image bearer. A surface linear speed of the charging roller is made slower than a surface linear speed of the image bearer. The image forming apparatus includes a charging roller controller that switches the rotational speed of the charging roller to a first rotational speed slower than the linear speed of the image bearer and a second rotational speed identical to the linear speed of the image bearer.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: July 4, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhiro Maehata, Nobuo Kuwabara, Kenji Honjoh, Yasuhito Kuboshima, Yusuke Ishizuka, Takeshi Shintani
  • Patent number: 9632475
    Abstract: A lubricant applicator includes a lubricant, a supply member contactable against the lubricant to supply the lubricant to a target, and a lubricant gauge to detect whether an amount of lubricant remaining is less than a threshold value. The lubricant gauge includes a rotary member rotatable about a shaft, a pressing member to press and rotate the rotary member as the lubricant is consumed, a contact part of the rotary member pressed by the pressing member, and a detection part of the rotary member opposite to the contact part across the shaft of the rotary member.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: April 25, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Uenishi, Takeshi Shintani, Kenji Honjoh, Shinya Karasawa, Daisuke Tomita, Kohsuke Yamamoto, Norio Kudo
  • Publication number: 20170102663
    Abstract: A device disposed opposing an image bearer includes a roller to rotate while contacting a surface of the image bearer, a rolling bearing fitted around a shaft located at an end of the roller in an axial direction of the roller, a frame to house the roller, and a bearing support removably attached to the frame. The rolling bearing includes an outer ring, an inner ring, and a rolling element disposed between the outer ring and the inner ring. The bearing support holds, from an outer-ring side, the rolling bearing interposed between the bearing support and the frame. The bearing support includes a receiving portion to contact the outer ring of the rolling bearing and bias the rolling bearing toward the frame in a direction in which the rolling bearing is interposed between the bearing support and the frame.
    Type: Application
    Filed: October 5, 2016
    Publication date: April 13, 2017
    Inventors: Daisuke TOMITA, Takeshi SHINTANI, Yasuhiro MAEHATA, Yasuhito KUBOSHIMA, Yusuke ISHIZUKA, Nobuo KUWABARA, Norio KUDOH, Kento AOKI
  • Publication number: 20160334757
    Abstract: An image forming apparatus includes an image bearer to bear a toner image, a lubricant supply roller to supply lubricant to a surface of the image bearer, a rotation speed changer to change a rotation speed of the lubricant supply roller, and a controller to control the rotation speed changer to change the rotation speed of the lubricant supply roller to a target speed based on a predetermined condition. The controller is configured to control the rotation speed changer to avoid a predetermined speed range.
    Type: Application
    Filed: May 3, 2016
    Publication date: November 17, 2016
    Inventors: Yasuhiro MAEHATA, Kenji Honjoh, Takeshi Shintani, Nobuo Kuwabara, Daisuke Tomita, Yasuhito Kuboshima, Yusuke Ishizuka
  • Patent number: 9436152
    Abstract: A lubricant supplying device used with a solid lubricant, includes a supplying member to supply lubricant taken from the solid lubricant to an object to be supplied with the lubricant, and a remaining amount detecting section to detect a remaining amount of the solid lubricant becoming below a predetermined value. A detection of the remaining amount of the solid lubricant is executed when an operation to supply the lubricant to the object to be supplied with the lubricant stops.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: September 6, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenji Honjoh, Takeshi Shintani, Kohsuke Yamamoto, Daisuke Tomita, Norio Kudo
  • Publication number: 20160209771
    Abstract: An image forming apparatus includes a process cartridge that includes an image bearer including a rotary shaft and rotates about the rotary shaft; a charger to charge a surface of the image bearer; and a developing device to develop an electrostatic latent image formed on the image bearer into a visible toner image. The charger includes a charging roller that rotates about a shaft together with the image bearer during image formation and electrically charges a surface of the image bearer. A surface linear speed of the charging roller is made slower than a surface linear speed of the image bearer. The image forming apparatus includes a charging roller controller that switches the rotational speed of the charging roller to a first rotational speed slower than the linear speed of the image bearer and a second rotational speed identical to the linear speed of the image bearer.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 21, 2016
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasuhiro Maehata, Nobuo Kuwabara, Kenji Honjoh, Yasuhito Kuboshima, Yusuke Ishizuka, Takeshi Shintani
  • Patent number: 9395686
    Abstract: A process cartridge removably installable in an image forming apparatus includes a cartridge body including an image bearer; a cleaning unit removably attached to the cartridge body and including a lubricant supply device to lubricate the image bearer; a first contact terminal disposed in one of the cleaning unit and the cartridge body; and a second contact terminal disposed in the other of the cleaning unit and the cartridge body. The second contact terminal is disposed to contact the first contact terminal to establish electrical continuity between the cartridge body and the cleaning unit, and an end of the first contact terminal includes a sliding contact portion to slidingly contact the second contact terminal in attachment and removal of the cleaning unit to and from the cartridge body.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: July 19, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Shintani, Yasuhito Kuboshima, Yusuke Ishizuka, Kenji Honjoh, Nobuhiro Kuwabara
  • Patent number: 9383715
    Abstract: A lubricant supplying device includes a lubricant supplier contacting an image bearer, a solid lubricant contacting the roller, a detector detecting a lubricant amount, and a controller controlling a supplying of the roller based on a detector detection. The detector outputs to the controller a first signal of a near-end state when the amount reaches a first amount, a second signal of an end state when the amount reaches a second amount smaller than the first amount, and a third signal of an absolute end state when the amount reaches a third amount smaller than the second amount. The controller temporarily stops the supplying when the second signal is output, cancels a roller temporary stopped state even when lubricant replacement is not completed after this state, stops the supplying when the third signal is output, and maintains a roller stopped state until the replacement is completed after this state.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: July 5, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kenji Honjoh, Takeshi Shintani, Nobuo Kuwabara, Yasuhiro Maehata, Yasuhito Kuboshima, Yusuke Ishizuka
  • Patent number: 9367021
    Abstract: An image forming apparatus includes a controller and multiple image forming units each of which includes an image bearer, a toner image forming device to form a toner image on the image bearer, a transfer device to transfer the toner image from the image bearer onto a transfer medium, a cleaning device to remove toner from a surface of the image bearer, a waste-toner tube through which toner removed by the cleaning device is transported, and a toner conveying member to transport toner by rotation and disposed inside the waste-toner tube. The controller changes a rotation speed of the toner conveying member for each of the multiple image forming units according to toner type including a first toner and a second toner having poorer flow properties than the first toner, and at least one image forming units uses the second toner and the rest use the first toner.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: June 14, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Yusuke Ishizuka, Takeshi Shintani, Nobuo Kuwabara, Kenji Honjoh, Yasuhito Kuboshima