Patents by Inventor Hiroyuki Uenishi
Hiroyuki Uenishi 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).
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Patent number: 11307515Abstract: A developing device includes a developer bearer, a developer regulator, a developer supply passage, and a stopper. The developer bearer includes a magnetic field generator and is configured to bear a developer containing toner and magnetic carriers and conveys the developer to a developing area by rotation. A stopper prevents the developer blocked by the developer regulator from moving to a surface of the developer bearer, while securing a supply path for passing the developer in the developer supply passage to the developer bearer between the stopper and an upper end of a side wall of the developer supply passage that is opposite to the developing bearer. A width of the supply path in a direction perpendicular to a direction of a rotation axis of the developer bearer is in a range of 7%-10% of a circumference of an outer diameter of the developing bearer.Type: GrantFiled: July 8, 2020Date of Patent: April 19, 2022Assignee: RICOH COMPANY, LTD.Inventors: Hiroshi Kikuchi, Akira Fujimori, Hideki Kimura, Yutaka Takahashi, Johji Yahagi, Hiroyuki Uenishi, Yusuke Ishizuka
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Patent number: 10935907Abstract: A developer conveyance device includes a downward conveyance path in which a developer falls under gravity, a transverse conveyance path communicating with a lower end of the downward conveyance path and extending in a transverse direction intersecting with the downward conveyance path, a transport screw disposed in the transverse conveyance path, and a floating member. The transport screw is configured to rotate in a predetermined direction to transport the developer in the transverse direction. The floating member is configured to contact the transport screw rotating in the predetermined direction to float in the downward conveyance path.Type: GrantFiled: May 18, 2020Date of Patent: March 2, 2021Assignee: RICOH COMPANY, LTD.Inventors: Yusuke Ishizuka, Akira Fujimori, Hideki Kimura, Yutaka Takahashi, Hiroshi Kikuchi, Hiroyuki Uenishi, Johji Yahagi
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Publication number: 20210033998Abstract: A developing device includes a developer bearer, a developer regulator, a developer supply passage, and a stopper. The developer bearer includes a magnetic field generator and is configured to bear a developer containing toner and magnetic carriers and conveys the developer to a developing area by rotation. A stopper is configured to prevent the developer blocked by the developer regulator from moving to a surface of the developer bearer, while securing a supply path for passing the developer in the developer supply passage to the developer bearer between the stopper and an upper end of a side wall of the developer supply passage that is opposite to the developing bearer. A width of the supply path in a direction perpendicular to a direction of a rotation axis of the developer bearer is in a range of 7% or more and less than 10% of a circumference of an outer diameter of the developing bearer.Type: ApplicationFiled: July 8, 2020Publication date: February 4, 2021Inventors: Hiroshi KIKUCHI, Akira FUJIMORI, Hideki KIMURA, Yutaka TAKAHASHI, Johji YAHAGI, Hiroyuki UENISHI, Yusuke ISHIZUKA
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Publication number: 20200387085Abstract: A developer conveyance device includes a downward conveyance path in which a developer falls under gravity, a transverse conveyance path communicating with a lower end of the downward conveyance path and extending in a transverse direction intersecting with the downward conveyance path, a transport screw disposed in the transverse conveyance path, and a floating member. The transport screw is configured to rotate in a predetermined direction to transport the developer in the transverse direction. The floating member is configured to contact the transport screw rotating in the predetermined direction to float in the downward conveyance path.Type: ApplicationFiled: May 18, 2020Publication date: December 10, 2020Inventors: Yusuke ISHIZUKA, Akira FUJIMORI, Hideki KIMURA, Yutaka TAKAHASHI, Hiroshi KIKUCHI, Hiroyuki UENISHI, Johji YAHAGI
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Patent number: 10824378Abstract: An image forming apparatus used by a plurality of users who have mutually different characteristics comprises a first storage, a second storage, a management part, and a notification part. The first storage stores a characteristic information indicating characteristics of the plurality of users. The second storage is capable of storing a plurality of application programs used by the plurality of users. The management part manages installation and execution of the plurality of application programs. The notification part notifies, according to the characteristic information, a recommendation information related to the application program for the plurality of users.Type: GrantFiled: October 9, 2019Date of Patent: November 3, 2020Assignee: KYOCERA Document Solutions, Inc.Inventors: Shoichi Sakaguchi, Hiroyuki Uenishi
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Publication number: 20200233365Abstract: A cleaning device includes a brush roller configured to contact an image bearer while rotating to remove toner adhering to an image bearer, a bias applying device configured to apply a bias to the brush roller, and control circuitry configured to causes the bias applying device to apply a first bias in a first period from when the brush roller is new to when a cumulative travel distance or a cumulative rotation time of the brush roller reaches a predetermined value, and to apply a second bias in a second period after the first period. The first bias sends a first current through the brush roller, and the second bias sends a second current through the brush roller. The absolute value of the first current is smaller than the absolute value of the second current.Type: ApplicationFiled: January 6, 2020Publication date: July 23, 2020Applicant: Ricoh Company, Ltd.Inventors: Hideki Kimura, Akira Fujimori, Hiroshi Kikuchi, Yutaka Takahashi, Hiroyuki Uenishi, Yusuke Ishizuka, Johji Yahagi
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Publication number: 20200117404Abstract: An image forming apparatus used by a plurality of users who have mutually different characteristics comprises a first storage, a second storage, a management part, and a notification part. The first storage stores a characteristic information indicating characteristics of the plurality of users. The second storage is capable of storing a plurality of application programs used by the plurality of users. The management part manages installation and execution of the plurality of application programs. The notification part notifies, according to the characteristic information, a recommendation information related to the application program for the plurality of users.Type: ApplicationFiled: October 9, 2019Publication date: April 16, 2020Applicant: KYOCERA Document Solutions Inc.Inventors: Shoichi SAKAGUCHI, Hiroyuki UENISHI
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Publication number: 20180114003Abstract: An authentication device includes a storage unit, an operation display, and an authentication unit. The storage unit stores a registered password for authentication associated with a user name. The operation display generates a password for temporary authentication in response to entering the user name. The password for temporary authentication is generated by removing a part of the registered password for authentication. The operation display displays removal specifying information for identifying the removal and accepts entering a password candidate. The authentication unit performs authentication when the entered password candidate matches the password for temporary authentication and does not perform authentication when the password does not match the password for temporary authentication.Type: ApplicationFiled: October 26, 2017Publication date: April 26, 2018Inventor: Hiroyuki Uenishi
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Patent number: 9813584Abstract: An image processing apparatus includes a switch section, a power supply section, an operation display section, an initialization control section, an image processing section, and a condition receiving section. The initialization control section causes the operation display section to start a first initialization processing when supply of a power supply voltage is started, and subsequently causes the image processing section to start a second initialization processing. The condition receiving section accepts an input of an execution condition. The operation display section includes a display part, a storage part, a display control part, and a condition setting part. The display control part causes the display part to display a screen after completion of the first initialization processing.Type: GrantFiled: November 23, 2015Date of Patent: November 7, 2017Assignee: KYOCERA Document Solutions Inc.Inventor: Hiroyuki Uenishi
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Patent number: 9703253Abstract: A toner conveyance device includes a toner conveyance path through which toner is transported. The toner conveyance path includes a flexible portion, a toner conveyor inside the conveyance path to convey the toner, and a restrictor outside the toner conveyance path to restrict deformation of the toner conveyance path.Type: GrantFiled: April 18, 2016Date of Patent: July 11, 2017Assignee: RICOH COMPANY, LTD.Inventors: Daisuke Tomita, Toshiya Satoh, Satoshi Hatori, Takeshi Fukao, Hajime Teraji, Norio Kudoh, Hiroyuki Uenishi
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Patent number: 9690250Abstract: An image forming apparatus includes an image bearer; a charger to charge a surface of the image bearer; an exposure device to expose the surface of the image bearer and form an electrostatic latent image on the image bearer; a developing device to adhere electrically charged toner to the electrostatic latent image on the image bearer, to thereby form a toner image; a microprocessor to control rotation of the image bearer; and a sensor to detect temperature and humidity. In a state of suspended rotation of the image bearer, the microprocessor controls the image bearer to rotate a predetermined amount at a predetermined interval and determines whether a rotation operation of the image bearer is to be performed, based on a detection result of the sensor.Type: GrantFiled: February 4, 2016Date of Patent: June 27, 2017Assignee: Ricoh Company, Ltd.Inventors: Tomohiko Saito, Toshiya Satoh, Norio Kudoh, Hiroyuki Uenishi, Daisuke Tomita
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Patent number: 9654653Abstract: A control section includes a track detecting section, a pattern determining section, and a character string display section. The track detecting section detects a track of a touch point on a touch panel by a user. The pattern determining section determines whether or not there is a match between the track of the touch point detected by the track detecting section and any of a plurality of patterns stored by a storage section. Upon the pattern determining section determining that there is a match, the character string display section reads a character string from the storage section that is associated with a pattern determined to match the track of the touch point from among the plurality of patterns. The character string display section causes pasting and display of the character string in an input region displayed by a display section.Type: GrantFiled: December 3, 2015Date of Patent: May 16, 2017Assignee: KYOCERA Document Solutions Inc.Inventor: Hiroyuki Uenishi
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Patent number: 9632475Abstract: 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: GrantFiled: August 19, 2015Date of Patent: April 25, 2017Assignee: Ricoh Company, Ltd.Inventors: Hiroyuki Uenishi, Takeshi Shintani, Kenji Honjoh, Shinya Karasawa, Daisuke Tomita, Kohsuke Yamamoto, Norio Kudo
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Patent number: 9563167Abstract: An image forming apparatus includes an image bearer; a charger to charge a surface of the image bear; a developing device to develop a toner image on the surface of the image bearer; an image bearer cleaner to remove residual toner remaining on the surface of the image bearer after a transfer process; and a controller to cause the image forming apparatus to perform, before a start of printing operation, a corona products removal mode. In the image forming apparatus further including a temperature and humidity sensor to measure temperature and humidity of an ambient environment of the image bearer, the controller to cause the image forming apparatus to perform, before a start of an image forming operation, a corona products removal mode based on an absolute humidity obtained by the temperature and humidity detected by the temperature and humidity sensor.Type: GrantFiled: February 5, 2016Date of Patent: February 7, 2017Assignee: Ricoh Company, Ltd.Inventors: Daisuke Tomita, Toshiya Satoh, Norio Kudoh, Hiroyuki Uenishi, Tomohiko Saito
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Publication number: 20160306318Abstract: A toner conveyance device includes a toner conveyance path through which toner is transported. The toner conveyance path includes a flexible portion, a toner conveyor inside the conveyance path to convey the toner, and a restrictor outside the toner conveyance path to restrict deformation of the toner conveyance path.Type: ApplicationFiled: April 18, 2016Publication date: October 20, 2016Inventors: Daisuke TOMITA, Toshiya SATOH, Satoshi HATORI, Takeshi FUKAO, Hajime TERAJI, Norio KUDOH, Hiroyuki UENISHI
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Publication number: 20160231704Abstract: An image forming apparatus includes an image bearer; a charger to charge a surface of the image bearer; an exposure device to expose the surface of the image bearer and form an electrostatic latent image on the image bearer; a developing device to adhere electrically charged toner to the electrostatic latent image on the image bearer, to thereby form a toner image; a microprocessor to control rotation of the image bearer; and a sensor to detect temperature and humidity. In a state of suspended rotation of the image bearer, the microprocessor controls the image bearer to rotate a predetermined amount at a predetermined interval and determines whether a rotation operation of the image bearer is to be performed, based on a detection result of the sensor.Type: ApplicationFiled: February 4, 2016Publication date: August 11, 2016Applicant: Ricoh Company, Ltd.Inventors: Tomohiko Saito, Toshiya Satoh, Norio Kudoh, Hiroyuki Uenishi, Daisuke Tomita
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Publication number: 20160231689Abstract: An image forming apparatus includes an image bearer; a charger to charge a surface of the image bear; a developing device to develop a toner image on the surface of the image bearer; an image bearer cleaner to remove residual toner remaining on the surface of the image bearer after a transfer process; and a controller to cause the image forming apparatus to perform, before a start of printing operation, a corona products removal mode. In the image forming apparatus further including a temperature and humidity sensor to measure temperature and humidity of an ambient environment of the image bearer, the controller to cause the image forming apparatus to perform, before a start of an image forming operation, a corona products removal mode based on an absolute humidity obtained by the temperature and humidity detected by the temperature and humidity sensor.Type: ApplicationFiled: February 5, 2016Publication date: August 11, 2016Inventors: Daisuke TOMITA, Toshiya SATOH, Norio KUDOH, Hiroyuki UENISHI, Tomohiko SAITO
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Publication number: 20160182749Abstract: A control section includes a track detecting section, a pattern determining section, and a character string display section. The track detecting section detects a track of a touch point on a touch panel by a user. The pattern determining section determines whether or not there is a match between the track of the touch point detected by the track detecting section and any of a plurality of patterns stored by a storage section. Upon the pattern determining section determining that there is a match, the character string display section reads a character string from the storage section that is associated with a pattern determined to match the track of the touch point from among the plurality of patterns. The character string display section causes pasting and display of the character string in an input region displayed by a display section.Type: ApplicationFiled: December 3, 2015Publication date: June 23, 2016Applicant: KYOCERA Document Solutions Inc.Inventor: Hiroyuki UENISHI
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Patent number: 9360826Abstract: An image forming apparatus includes an image bearer; a toner image forming unit 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 untransferred toner from the image bearer; and a lubrication device including a solid lubricant, an applicator to apply lubricant scraped off from the solid lubricant to the image bearer while rotating, and an applicator driving device to rotate the applicator; and a controller to control the applicator driving device according to a predetermined variable to change a rotational frequency of the applicator during idle running of the image bearer.Type: GrantFiled: November 20, 2014Date of Patent: June 7, 2016Assignee: RICOH COMPANY, LTD.Inventors: Tomohiko Saito, Fumihito Itoh, Toshiya Sato, Norio Kudoh, Hiroyuki Uenishi
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Publication number: 20160156808Abstract: An image processing apparatus includes a switch section, a power supply section, an operation display section, an initialization control section, an image processing section, and a condition receiving section. The initialization control section causes the operation display section to start a first initialization processing when supply of a power supply voltage is started, and subsequently causes the image processing section to start a second initialization processing. The condition receiving section accepts an input of an execution condition. The operation display section includes a display part, a storage part, a display control part, and a condition setting part. The display control part causes the display part to display a screen after completion of the first initialization processing.Type: ApplicationFiled: November 23, 2015Publication date: June 2, 2016Inventor: Hiroyuki Uenishi