Patents by Inventor Hirokazu Fujii
Hirokazu Fujii 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: 9069331Abstract: A support unit that supports a member to be supported is inserted in an apparatus main body thus to be mounted therein. The support unit includes a wall portion, a connector unit, and a cover member. The wall portion is provided on an upstream end portion of the support unit in the direction in which the support unit is inserted. The connector unit is provided on the wall portion for electrical connection between the apparatus main body and the support unit. The cover member is pivotably supported by a bearing portion provided on the wall portion, so as to pivot between a first position in which the connector unit is exposed so as to allow an operator to grasp the cover member, and a second position in which the connector unit is concealed.Type: GrantFiled: December 3, 2013Date of Patent: June 30, 2015Assignee: KYOCERA DOCUMENT SOLUTIONS INC.Inventor: Hirokazu Fujii
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Publication number: 20150108708Abstract: A paper separating device for separating a paper sheet includes a frame member, an image carrier, a securing plate, and two types of assemblies. The two types of assemblies include: a first assembly that includes a separation claw configured to separate the paper sheet from the image carrier, a guiding member configured to guide the paper sheet, and a holder with an engaging portion; and a second assembly that engages the guiding member alone to the holder with the engaging portion without holding the separation claw. The frame member and the securing plate each include an assembly securing portion with an engaged portion to be engaged with the engaging portion of the holder. One of the two types of assemblies is secured to the assembly securing portion disposed at the securing plate while another is secured to the assembly securing portion disposed at the frame member.Type: ApplicationFiled: September 12, 2014Publication date: April 23, 2015Inventor: Hirokazu Fujii
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Patent number: 8995883Abstract: A developing device includes a developing container, a first agitating/conveying member, a second agitating/conveying member, a developer supply member, a supply port, and a supply section. The developing container is separated into a developer supply passage, a first conveying chamber, and a second conveying chamber, which are arranged substantially parallel to one another. The supply section is disposed between the developer supply passage and the first conveying chamber, and through the supply section, the developer is supplied from the developer supply passage into the first conveying chamber.Type: GrantFiled: April 4, 2014Date of Patent: March 31, 2015Assignee: Kyocera Document Solutions Inc.Inventors: Koji Kuramashi, Tatsuya Yamanaka, Hirokazu Fujii
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Publication number: 20150071691Abstract: A cleaning apparatus includes a blade, a screw, a toner crushing member, and a casing. The toner crushing member is located in contact with the screw. The toner crushing member is provided in association with the screw and configured to crush toner accumulated between the screw and the blade, by being swung by the screw rotating. The casing houses the screw and the toner crushing member. The screw rotates in the direction reverse to the rotational direction of the photoreceptor drum. The toner crushing member is configured having a first part and a second part, with a base-end side of the first part being secured to the casing, and the second part being folded back along a distal-end side of the first part, such that a distal-end side of the second part swings between the blade and the screw, in association with the rotation of the screw.Type: ApplicationFiled: September 10, 2014Publication date: March 12, 2015Inventor: Hirokazu Fujii
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Patent number: 8903271Abstract: An image forming apparatus includes a housing with an inner space, a photosensitive drum, a drum unit, a rail member, and a static eliminator. The photosensitive drum includes a rotating shaft, and a circumferential surface to be drivingly rotated around the rotating shaft for carrying an image thereon. The drum unit is inserted in the inner space of the housing along an axis direction of the rotating shaft in a state that the photosensitive drum is integrally supported to be mounted in the inner space. The rail member extends along the axis direction in the inner space for guiding the drum unit in the axis direction when the drum unit is mounted. The static eliminator is fixed to the rail member, and disposed to face the photosensitive drum in the drum unit mounted in the inner space for irradiating the circumferential surface of the photosensitive drum with static eliminating light.Type: GrantFiled: May 14, 2013Date of Patent: December 2, 2014Assignee: KYOCERA Document Solutions Inc.Inventor: Hirokazu Fujii
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Publication number: 20140314450Abstract: A developing device includes a developing container, a first agitating/conveying member, a second agitating/conveying member, a developer supply member, a supply port, and a supply section. The developing container is separated into a developer supply passage, a first conveying chamber, and a second conveying chamber, which are arranged substantially parallel to one another. The supply section is disposed between the developer supply passage and the first conveying chamber, and through the supply section, the developer is supplied from the developer supply passage into the first conveying chamber.Type: ApplicationFiled: April 4, 2014Publication date: October 23, 2014Applicant: KYOCERA Document Solutions Inc.Inventors: Koji KURAMASHI, Tatsuya YAMANAKA, Hirokazu FUJII
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Publication number: 20140301753Abstract: An image forming apparatus according to an aspect of the present disclosure includes a drum unit, a developing unit, a pressing unit, and a projection portion. Drum unit includes photosensitive drum. Developing unit includes a developing roller that develops a toner image on the photosensitive drum. Each of drum unit and developing unit is configured to be extractable from an apparatus body. Pressing unit is configured to make developing unit movable between a pressing position at which developing roller is pressed against photosensitive drum and a pressing-releasing position at which developing roller is separated from photosensitive drum so as to release the pressing. Projection portion is provided integrally with developing unit and configured to be projected to an extraction path of drum unit when developing unit is located at pressing position and to retract from extraction path of drum unit when developing unit is located at the pressing-releasing position.Type: ApplicationFiled: April 2, 2014Publication date: October 9, 2014Applicant: KYOCERA Document Solutions Inc.Inventor: Hirokazu Fujii
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Patent number: 8787795Abstract: What is provided is an image formation apparatus including: an image formation part provided inside a main body so that the image formation part may be attached to the main body and detached from the main body; a plurality of opening-closing parts which may be opened and closed to attach the image formation part to the main body or detach the image formation part from the main body; and a plurality of locking parts latching each of the plurality of opening-closing parts to the main body, wherein when one of the plurality of locking parts undergoes a releasing operation, an other one of the plurality of locking parts also undergoes a releasing operation.Type: GrantFiled: December 27, 2011Date of Patent: July 22, 2014Assignee: Kyocera Document Solutions Inc.Inventors: Hirokazu Fujii, Daijiro Ueno, Hiroki Takahashi, Tatsuya Yamanaka
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Publication number: 20140153953Abstract: A support unit that supports a member to be supported is inserted in an apparatus main body thus to be mounted therein. The support unit includes a wall portion, a connector unit, and a cover member. The wall portion is provided on an upstream end portion of the support unit in the direction in which the support unit is inserted. The connector unit is provided on the wall portion for electrical connection between the apparatus main body and the support unit. The cover member is pivotably supported by a bearing portion provided on the wall portion, so as to pivot between a first position in which the connector unit is exposed so as to allow an operator to grasp the cover member, and a second position in which the connector unit is concealed.Type: ApplicationFiled: December 3, 2013Publication date: June 5, 2014Applicant: KYOCERA Document Solutions Inc.Inventor: Hirokazu Fujii
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Publication number: 20130308977Abstract: An image forming apparatus includes a housing with an inner space, a photosensitive drum, a drum unit, a rail member, and a static eliminator. The photosensitive drum includes a rotating shaft, and a circumferential surface to be drivingly rotated around the rotating shaft for carrying an image thereon. The drum unit is inserted in the inner space of the housing along an axis direction of the rotating shaft in a state that the photosensitive drum is integrally supported to be mounted in the inner space. The rail member extends along the axis direction in the inner space for guiding the drum unit in the axis direction when the drum unit is mounted. The static eliminator is fixed to the rail member, and disposed to face the photosensitive drum in the drum unit mounted in the inner space for irradiating the circumferential surface of the photosensitive drum with static eliminating light.Type: ApplicationFiled: May 14, 2013Publication date: November 21, 2013Applicant: KYOCERA Document Solutions Inc.Inventor: Hirokazu Fujii
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Patent number: 8565651Abstract: A toner supply device configured to be detachably attached into an apparatus main body of an image forming apparatus and supplying a toner to a developing device, the toner supply device being: provided with a container main body configured substantially in a rectangular solid shape and configured to be inserted into the apparatus main body along a longitudinal direction of the container main body, having a toner containing part communicating with a developing device, and a barrel part that moves downward upon receipt of a biasing force from a direction of the apparatus main body when being inserted into the apparatus main body and a lock part arranged at a rear of the barrel part; the handle member being inserted into said apparatus main body side according to the downward movement of said barrel part and fixing said toner supply device in said apparatus main body.Type: GrantFiled: March 3, 2011Date of Patent: October 22, 2013Assignee: Kyocera Documents Solutions Inc.Inventor: Hirokazu Fujii
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Patent number: 8383319Abstract: Lithographic printing plate precursors have been designed so that they can be stored, shipped, and used in stacks without interleaf paper between individual precursors. This is achieved by incorporating polymeric particles having an average diameter of from about 3 to about 20 ?m into the outermost precursor layer such as an imagable layer or topcoat. The polymeric particles comprise a core of a crosslinked polymer and have grafted hydrophilic polymeric surface groups that are grafted onto the particle surfaces by polymerizing hydrophilic monomers in the presence of the crosslinked polymeric particles. The lithographic printing plates can be either negative- or positive-working elements.Type: GrantFiled: August 25, 2009Date of Patent: February 26, 2013Assignee: Eastman Kodak CompanyInventors: Jianbing Huang, Shashikant Saraiya, Frederic E. Mikell, Eiji Hayakawa, Hirokazu Fujii, Akira Igarashi
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Publication number: 20120163858Abstract: What is provided is an image formation apparatus including: an image formation part provided inside a main body so that the image formation part may be attached to the main body and detached from the main body; a plurality of opening-closing parts which may be opened and closed to attach the image formation part to the main body or detach the image formation part from the main body; and a plurality of locking parts latching each of the plurality of opening-closing parts to the main body, wherein when one of the plurality of locking parts undergoes a releasing operation, an other one of the plurality of locking parts also undergoes a releasing operation.Type: ApplicationFiled: December 27, 2011Publication date: June 28, 2012Inventors: Hirokazu FUJII, Daijiro UENO, Hiroki TAKAHASHI, Tatsuya YAMANAKA
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Patent number: 8086147Abstract: An intermediate transfer unit of an image forming apparatus is provided between a plurality of developer containers for containing developer and a plurality of developing devices. The intermediate transfer unit includes an intermediate transfer unit for secondarily transferring primarily transferred developed images from the plurality of image carriers onto a paper, an intermediate transfer unit driving mechanism for driving the intermediate transfer unit, and a housing for supporting the intermediate transfer unit driving mechanism. One end of the housing includes a plurality of developer inlet ports positionally corresponding to the developer supply ports of the developer containers respectively, a plurality of developer outlet ports positionally corresponding to the developer receiving ports of the developing devices respectively, and a plurality of developer supply paths connecting between the developer inlet ports and the developer outlet ports respectively.Type: GrantFiled: February 23, 2010Date of Patent: December 27, 2011Assignee: Kyocera Mita CorporationInventors: Shinji Furuta, Koju Yamamoto, Hirokazu Fujii, Hiroki Morishita, Yoshiaki Ikebata
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Publication number: 20110236076Abstract: A toner supply device configured to be detachably attached into an apparatus main body of an image forming apparatus and supplying a toner to a developing device, the toner supply device being: provided with a container main body configured substantially in a rectangular solid shape and configured to be inserted into the apparatus main body along a longitudinal direction of the container main body, having a toner containing part communicating with a developing device, and a barrel part that moves downward upon receipt of a biasing force from a direction of the apparatus main body when being inserted into the apparatus main body and a lock part arranged at a rear of the barrel part; the handle member being inserted into said apparatus main body side according to the downward movement of said barrel part and fixing said toner supply device in said apparatus main body.Type: ApplicationFiled: March 3, 2011Publication date: September 29, 2011Applicant: KYOCERA MITA CORPORATIONInventor: Hirokazu Fujii
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Publication number: 20110053085Abstract: Lithographic printing plate precursors have been designed so that they can be stored, shipped, and used in stacks without interleaf paper between individual precursors. This is achieved by incorporating polymeric particles having an average diameter of from about 3 to about 20 ?m into the outermost precursor layer such as an imageable layer or topcoat. The polymeric particles comprise a core of a crosslinked polymer and have grafted hydrophilic polymeric surface groups that are grafted onto the particle surfaces by polymerizing hydrophilic monomers in the presence of the crosslinked polymeric particles. The lithographic printing plates can be either negative- or positive-working elements.Type: ApplicationFiled: August 25, 2009Publication date: March 3, 2011Inventors: Jianbing Huang, Shashikant Saraiya, Frederic E. Mikell, Eiji Hayakawa, Hirokazu Fujii, Akira Igarashi
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Patent number: 7885594Abstract: An image forming apparatus has a spacer roller that contacts a photosensitive drum outside a running region of a transfer member. The spacer roller forms a gap between a developing roller and the photosensitive drum. A cleaning device is positioned at downstream side of a nip position formed between the photosensitive drum and the transfer member. A toner removing blade is disposed between the downstream side of the nip and an upstream side of the cleaning device. The toner removing blade has a contact portion that contacts a contact region between the photosensitive drum and the spacer roller. The rotation axis of the photosensitive drum extends along an inner end of the contact portion. This inner end of the contact portion is positioned within a toner collecting region in which toner is scraped off by the cleaning device.Type: GrantFiled: April 21, 2009Date of Patent: February 8, 2011Assignee: Kyocera Mita CorporationInventor: Hirokazu Fujii
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Patent number: 7868496Abstract: A plurality of winding parts are wound around teeth of an iron core with insulators disposed therebetween, and a printed wiring board is electrically connected to the winding part with a plurality of terminal pins. Each terminal pin is extends along an axial direction of the iron core and is attached to one of the insulators. An end portion of each winding part is wound around one of the terminal pins, and the terminal pin is soldered to the printed wiring board together with the end portion of the winding part. The terminal pins extend through hole portions of the printed wiring board.Type: GrantFiled: October 1, 2007Date of Patent: January 11, 2011Assignee: Daikin Industries, Ltd.Inventors: Hirokazu Fujii, Hiroki Fujita, Kouji Inoue, Mikio Itou
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Patent number: D655332Type: GrantFiled: September 27, 2010Date of Patent: March 6, 2012Assignee: Kyocera Mita CorporationInventor: Hirokazu Fujii
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Patent number: D679750Type: GrantFiled: September 23, 2011Date of Patent: April 9, 2013Assignee: Kyocera Mita CorporationInventor: Hirokazu Fujii