Patents by Inventor Shinichi IIJIMA
Shinichi IIJIMA 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: 10254702Abstract: An end member includes a tubular bearing member and a shaft member held by the bearing member. The shaft member includes a rotating shaft rotatable around an axis and movable in an axial direction, and a rotating force receiving member disposed in one end portion of the rotating shaft and including an engaging member to be engaged with a driving shaft of the image forming apparatus body. The engaging member is switchable between a posture of being engaged with the driving shaft and a posture of not being engaged with the driving shaft. A maximum static friction coefficient applied when the rotating shaft moves in a rotating axial direction with respect to the bearing member is equal to or less than 0.40 where a force that acts in a direction orthogonal to a frictional force direction is 2.5 to 10.5 N.Type: GrantFiled: December 15, 2017Date of Patent: April 9, 2019Assignees: Mitsubishi Chemical Corporation, General Plastic Industrial Co., Ltd.Inventors: Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima
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Patent number: 10146167Abstract: An end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body, comprises: a tubular bearing member; and a shaft member held by the bearing member, wherein the shaft member includes a rotating shaft which is disposed in the bearing member, and moves in an axial direction, and a rotating force receiving member which is provided with an engagement hook that is disposed in one end portion of the rotating shaft, swings with respect to an axis of the rotating shaft, and is engaged with a driving shaft of the image forming apparatus main body.Type: GrantFiled: December 7, 2016Date of Patent: December 4, 2018Assignee: Mitsubishi Chemical CorporationInventors: Shuichi Ikeda, Yohei Matsuoka, Susumu Taguchi, Shinichi Iijima
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Patent number: 10133235Abstract: There is provided an end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body, comprising: a tubular bearing member; and a shaft member held by the bearing member, in which the shaft member includes a rotating shaft which oscillates within a range of 18° or less with respect to a direction along an axis of the bearing member, a rotating force receiving member which is disposed in one end portion of the rotating shaft and is provided with an engaging member which is engaged with a driving shaft of the image forming apparatus main body, and a regulating member which is engaged with or disengaged from the rotating shaft or the rotating force receiving member by pressing, and switches a posture in which the engaging member is engaged with the driving shaft and a posture in which the engaging member is not engaged with the driving shaft.Type: GrantFiled: August 11, 2017Date of Patent: November 20, 2018Assignee: Mitsubishi Chemical CorporationInventors: Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima, Teruyuki Mitsumori, Daishi Kato, Hiroshi Takata
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Publication number: 20180203403Abstract: An end member includes a tubular bearing member and a shaft member held by the bearing member. The shaft member includes a rotating shaft rotatable around an axis and movable in an axial direction, and a rotating force receiving member disposed in one end portion of the rotating shaft and including an engaging member to be engaged with a driving shaft of the image forming apparatus body. The engaging member is switchable between a posture of being engaged with the driving shaft and a posture of not being engaged with the driving shaft. A maximum static friction coefficient applied when the rotating shaft moves in a rotating axial direction with respect to the bearing member is equal to or less than 0.40 where a force that acts in a direction orthogonal to a frictional force direction is 2.5 to 10.5 N.Type: ApplicationFiled: December 15, 2017Publication date: July 19, 2018Applicants: Mitsubishi Chemical Corporation, GENERAL PLASTIC INDUSTRIAL CO., LTD.Inventors: Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima
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Publication number: 20180088493Abstract: The invention provides devices and methods for remanufacturing toner printer cartridges and their components by reusing a seal for the toner opening port. The invention also provides devices and methods for remanufacturing a printer cartridge by resealing the toner opening port of the toner hopper. The invention also relates to devices and methods to install and replace seals on a toner hopper, refill toner in a toner hopper, replace a bag of toner in a toner hopper, and replace a chip for a toner cartridge. Also included are devices and methods of sealing a toner cartridge and reattaching a toner cartridge end cap to a waste hopper. A soft shell bottle suitable for use in a toner cartridge composed of a soft polymeric material is also provided.Type: ApplicationFiled: March 14, 2016Publication date: March 29, 2018Applicant: MITSUBISHI KAGAKU IMAGING CORPORATIONInventors: Craig RUMMLER, Shinichi IIJIMA, Mark DRAKE, Valeriy KISELEV, Manuel NUNEZ, Carlos GORDON, Gerardo MARTINEZ
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Patent number: 9804551Abstract: Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member.Type: GrantFiled: September 22, 2016Date of Patent: October 31, 2017Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima, Teruyuki Mitsumori, Daishi Kato, Hiroshi Takata
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Publication number: 20170219985Abstract: There is provided a bearing member which is disposed at an end section of a photoreceptor drum for attaching a shaft member that transmits a rotating force to the bearing member, the bearing member including a tubular body, and a holding section which is disposed inside the tubular body attachably and detachably, and holds a rotating force transmission pin provided in the shaft member, wherein the holding section includes at least two swing grooves provided extending along an axial direction of the tubular body, and opposing each other, and introduction grooves, each having one end communicating with the swing groove and the other end communicating with an outside of the swing groove, and the introduction grooves in a posture in which the shaft member transmits the rotating force are disposed entirely at a position to be lower than an entirety or a part of the rotating force transmission pin.Type: ApplicationFiled: April 14, 2017Publication date: August 3, 2017Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinichi IIJIMA, Shuichi IIKEDA
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Patent number: 9690248Abstract: There is provided a bearing member which is disposed at an end section of a photoreceptor drum for attaching a shaft member that transmits a rotating force to the bearing member, the bearing member including a tubular body, and a holding section which is disposed inside the tubular body attachably and detachably, and holds a rotating force transmission pin provided in the shaft member, wherein the holding section includes at least two swing grooves provided extending along an axial direction of the tubular body, and opposing each other, and introduction grooves, each having one end communicating with the swing groove and the other end communicating with an outside of the swing groove, and the introduction grooves in a posture in which the shaft member transmits the rotating force are disposed entirely at a position to be lower than an entirety or a part of the rotating force transmission pin.Type: GrantFiled: September 25, 2015Date of Patent: June 27, 2017Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinichi Iijima, Shuichi Ikeda
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Patent number: 9494917Abstract: Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member. The shaft member includes a turning shaft which moves in an axial line direction in accordance with turning about an axial line, a rotary power reception member which is arranged at one end of the turning shaft and includes an engagement member engaging with a drive shaft of an image forming apparatus body, and a regulation member which is pressed to engage with or be detached from the turning shaft or the rotary power reception member, whereby the engagement member switches between an engagement posture and a non-engagement posture with respect to the drive shaft.Type: GrantFiled: October 28, 2015Date of Patent: November 15, 2016Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima, Teruyuki Mitsumori, Daishi Kato, Hiroshi Takata
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Patent number: 9400484Abstract: A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.Type: GrantFiled: October 27, 2015Date of Patent: July 26, 2016Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuichi Ikeda, Shinichi Iijima
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Patent number: 9268303Abstract: A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.Type: GrantFiled: December 23, 2014Date of Patent: February 23, 2016Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuichi Ikeda, Shinichi Iijima
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Publication number: 20160048103Abstract: A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.Type: ApplicationFiled: October 27, 2015Publication date: February 18, 2016Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuichi IKEDA, Shinichi IIJIMA
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Publication number: 20160018777Abstract: There is provided a bearing member which is disposed at an end section of a photoreceptor drum for attaching a shaft member that transmits a rotating force to the bearing member, the bearing member including a tubular body, and a holding section which is disposed inside the tubular body attachably and detachably, and holds a rotating force transmission pin provided in the shaft member, wherein the holding section includes at least two swing grooves provided extending along an axial direction of the tubular body, and opposing each other, and introduction grooves, each having one end communicating with the swing groove and the other end communicating with an outside of the swing groove, and the introduction grooves in a posture in which the shaft member transmits the rotating force are disposed entirely at a position to be lower than an entirety or a part of the rotating force transmission pin.Type: ApplicationFiled: September 25, 2015Publication date: January 21, 2016Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinichi IIJIMA, Shuichi IKEDA
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Publication number: 20160011560Abstract: There is provided a method for detaching a shaft member swingably held by a bearing member from the bearing member which transmits a rotating force to a photoreceptor drum, wherein the shaft member includes a base end section received inside the bearing member, a rotating force transmission pin which protrudes from the base end section, and a rotating force receiving section which is disposed to protrude from the bearing member, and the method includes a process of detaching the shaft member from the bearing member by a force acting on the base end section.Type: ApplicationFiled: September 23, 2015Publication date: January 14, 2016Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinichi IIJIMA, Shuichi Ikeda, Wataru Miyashita, Susumu Taguchi, Takeshi Hiramatsu
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Patent number: 9217490Abstract: Devices and methods for remanufacturing a printer cartridge component are provided. The printer cartridge component is a drum gear assembly configured for attachment to an organic photoconductor (OPC) drum configured for use in a printer cartridge. The drum gear assembly has a drum drive gear and a drive axle attached to the drum drive gear. The drive axle has a first end with teeth portions. The device has a first portion having a drive axle engagement end configured to engage the drive axle. The device further has a second portion coupled to the first portion. The second portion has a teeth engagement portion to engage one or more of the teeth portions of the drive axle. The first portion and the second portion are configured for assembling and disassembling the drum gear assembly.Type: GrantFiled: August 21, 2014Date of Patent: December 22, 2015Assignee: Mitsubishi Kagaku Imaging CorporationInventors: William F. Niederstadt, Shinichi Iijima, Kozo Ishio, Edgar Covarrubias
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Patent number: 9182731Abstract: There is provided an end-side member to be arranged at an end of a photoreceptor drum unit which is detachably attached to an image forming apparatus body, the image forming apparatus body including a drive shaft having a concave portion, the concave portion being a hole having a substantially triangular cross-sectional shape and twisted in an extending direction of an axial line of the drive shaft. The end-side member includes a convex-shaped bearing member which is engageable with and disengageable from the concave portion. A depression to be engaged with a rim of an opening of the concave portion is formed in at least a part of an outer circumferential surface of the bearing member.Type: GrantFiled: April 21, 2014Date of Patent: November 10, 2015Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuichi Ikeda, Shinichi Iijima
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Patent number: 9058007Abstract: There is provided a torque transmitting member that appropriately maintains conductivity between an image forming apparatus body and a photosensitive drum and can suppress the occurrence of conduction failure. A torque transmitting member, which is disposed at an end portion of a photosensitive drum unit and transmits torque, includes: an cylindrical end member that includes a bearing portion at one end portion thereof and a fitting portion, which is inserted into a photosensitive drum, at the other end portion thereof; and a conductive conducting shaft member that is disposed so as to extend along a cylindrical shaft of the end member and includes a conductive material, which is elastically deformed, on at least a part thereof.Type: GrantFiled: August 15, 2013Date of Patent: June 16, 2015Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinichi Iijima, Shuichi Ikeda
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Publication number: 20150110522Abstract: A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuichi IKEDA, Shinichi Iijima
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Publication number: 20150053033Abstract: Devices and methods for remanufacturing a printer cartridge component are provided. The printer cartridge component is a drum gear assembly configured for attachment to an organic photoconductor (OPC) drum configured for use in a printer cartridge. The drum gear assembly has a drum drive gear and a drive axle attached to the drum drive gear. The drive axle has a first end with teeth portions. The device has a first portion having a drive axle engagement end configured to engage the drive axle. The device further has a second portion coupled to the first portion. The second portion has a teeth engagement portion to engage one or more of the teeth portions of the drive axle. The first portion and the second portion are configured for assembling and disassembling the drum gear assembly.Type: ApplicationFiled: August 21, 2014Publication date: February 26, 2015Applicant: Mitsubishi Kagaku Imaging CorporationInventors: William F. Niederstadt, Shinichi Iijima, Kozo Ishio, Edgar Covarrubias
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Patent number: 8953984Abstract: A rotating part for an image forming apparatus includes a drive member for transmitting power; and a driven member that is rotated by the drive member. The drive member has a male part formed in a direction of a rotation axis, and the driven member has a female part that is formed in the direction of the rotation axis and into which the male part is inserted. The male part is a hexagonal male part whose cross section perpendicular to the rotation axis assumes a hexagonal shape. The female part is a twisted triangular female part that assumes a triangular cross sectional profile in a direction perpendicular to the rotation axis, and a triangle which forms a cross section of a base and a cross section of a top is twisted at a predetermined angle with respect to the rotation axis.Type: GrantFiled: March 15, 2013Date of Patent: February 10, 2015Assignee: Mitsubishi Chemical CorporationInventors: Shinichi Iijima, Shuichi Ikeda, Makoto Furuune, Teruyuki Mitsumori