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1. 发明授权

US11586128B2 Conduction mechanism and image forming apparatus 有权
公开(公告)号：US11586128B2
公开(公告)日：2023-02-21
申请号：US17677318
申请日：2022-02-22
申请人： SHARP KABUSHIKI KAISHA
发明人： Shohtaroh Okamoto
IPC分类号： G03G15/00 , G03G15/09 , G03G21/16
摘要： A conduction mechanism includes: a conductive bearing that rotatably supports a rotary shaft; a non-conductive axial positioner that has a cylinder externally fitted to the bearing; and a contact terminal attached to an outer circumferential surface side of the cylinder. The cylinder has a slit, and the contact terminal has an abutment piece that is exposed to an inner circumferential surface side of the cylinder from the slit and abuts an outer circumferential surface of the bearing.

2. 发明授权

US11573504B2 Channel state information measurements for license assisted access 有权
公开(公告)号：US11573504B2
公开(公告)日：2023-02-07
申请号：US16773745
申请日：2020-04-14
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： Mattias Frenne , Jung-Fu Cheng , Sorour Falahati , Havish Koorapaty , Daniel Larsson
IPC分类号： H04W16/14 , G03G15/08 , H04B7/06 , H04L5/00 , H04L27/00 , G03G21/18 , H04W76/15 , G03G15/09 , G03G21/16
摘要： Systems and methods relating to accurate Channel State Information (CSI) measurements for a License Assisted Secondary Cell (LA SCell) are disclosed herein. In some embodiments, a wireless device enabled to operate in a cellular communications network according to a carrier aggregation scheme using both a licensed frequency band and an unlicensed frequency band operates to determine whether a Channel State Information Reference Symbol (CSI-RS) transmission from a LA SCell of the wireless device is present in a subframe, where the LA SCell is in an unlicensed frequency band. The wireless device further operates to process a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is present in the subframe and refrain from processing a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is not present in the subframe.

3. 发明授权

US11520251B2 Developer conveyor having helical blades and protrusions 有权
公开(公告)号：US11520251B2
公开(公告)日：2022-12-06
申请号：US17416660
申请日：2020-06-23
申请人： Hewlett-Packard Development Company, L.P.
发明人： Kazuhiko Takemoto
IPC分类号： G03G15/08 , G03G15/09
摘要： A developing device includes a developer carrier to carry a developer, and a developer conveyor to supply the developer to the developer carrier. The developer conveyor includes a shaft extending in an axial direction to rotate in a rotational direction, a helical blade having a conveying surface to convey the developer around the shaft along the axial direction, and a protrusion attached to a rear surface of the helical blade, which faces the conveying surface, and having a leading surface extending from an upstream end to a downstream end in the rotational direction of the shaft.

4. 发明授权

US11513453B2 Developing device and image forming apparatus 有权
公开(公告)号：US11513453B2
公开(公告)日：2022-11-29
申请号：US17469936
申请日：2021-09-09
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Nobuaki Takahashi
IPC分类号： G03G15/16 , G03G15/09 , G03G15/08
摘要： According to one embodiment, the developing device includes a developing case containing toner, a mixer configured to diffuse the toner in the developing case, and a developing roller configured to develop a latent image formed on an image carrier. The developing case includes a circulation path through which air containing the toner flows. The developing roller is partially exposed from the developing case. The developing roller includes a sleeve rotating along with the movement of the image carrier and a plurality of magnetic pole portions disposed inside the sleeve. The developing roller holds the toner on the sleeve and supplies the toner to the image carrier to develop the latent image. The developing device further includes a magnet disposed apart from the developing roller. The magnet faces one of the magnetic pole portions across the sleeve.

5. 发明授权

US11506997B1 Developing device and image forming apparatus 有权
公开(公告)号：US11506997B1
公开(公告)日：2022-11-22
申请号：US17411625
申请日：2021-08-25
申请人： FUJIFILM Business Innovation Corp.
发明人： Kenta Urayama , Tomoyuki Yoshii , Yoshifumi Ozaki , Norihiro Tamazawa
IPC分类号： G03G15/09 , G03G15/08
摘要： A developing device includes a developing rotator configured to rotate through a developing region while carrying a magnetic developer, a supply transport member configured to rotate to transport the developer to be supplied to the developing rotator, a non-magnetic movement assist member arranged between the developing rotator and the supply transport member, and having a slope that receives the developer from the supply transport member and moves the developer to the developing rotator, a first adjusting member having a facing surface that faces, with distances, the slope of the movement assist member and a surface of the developing rotator at a part passing over the movement assist member, and configured to adjust a movement amount of the developer from the movement assist member to the developing rotator and a carrying amount of the developer on the surface of the developing rotator, and a second adjusting member having a distance from the surface of the developing rotator at a part passing over the first adjusting member, and configured to adjust the carrying amount of the developer on the surface of the developing rotator before the developer reaches the developing region. A first minimum distance between the slope of the movement assist member and the facing surface of the first adjusting member, a second minimum distance between the facing surface of the first adjusting member and the surface of the developing rotator, and a third minimum distance between the second adjusting member and the surface of the developing rotator are reduced in descending order.

6. 发明申请

US20220308515A1 PRINTING APPARATUS 有权
公开(公告)号：US20220308515A1
公开(公告)日：2022-09-29
申请号：US17656054
申请日：2022-03-23
申请人： SEIKO EPSON CORPORATION
发明人： Yusuke MATSUMOTO , Toru MATSUYAMA
IPC分类号： G03G15/00 , G03G15/09 , G03G15/16
摘要： A printing apparatus includes a printing section that performs printing on a medium containing calcium carbonate, a transport section that rotationally drives a transport belt that forms at least a portion of a transport path in which the medium is transported, a voltage supply section that supplies a charging voltage to a charging roller for charging the transport belt, a detection section that detects whether or not charging abnormality has occurred in the transport belt, and a determination section that determines whether abnormality has occurred in the voltage supply section or the transport belt, or abnormality has occurred in the voltage supply section and the transport belt, based on a rotation amount of the transport belt and the detection result of the detection section. The transport belt is coated with melamine resin.

7. 发明申请

US20220308500A1 PRINTING APPARATUS 有权
公开(公告)号：US20220308500A1
公开(公告)日：2022-09-29
申请号：US17656048
申请日：2022-03-23
申请人： SEIKO EPSON CORPORATION
发明人： Yusuke MATSUMOTO , Toru MATSUYAMA
IPC分类号： G03G15/09 , G03G15/00
摘要： A printing apparatus includes a voltage supply section that supplies a charging voltage for charging a transport belt, a detection section that detects whether or not charging abnormality has occurred in the transport belt, and a determination section that determines a cause of the charging abnormality. The determination section determines that the cause of the charging abnormality is abnormality of the voltage supply section, when the movement period includes the period for which the detection section detects the charging abnormality and does not include the period for which the detection section does not detect the charging abnormality.

8. 发明申请

US20220236657A1 MAGNETIC CARRIER, TWO-COMPONENT DEVELOPER, AND DEVELOPER FOR REPLENISHMENT 有权
公开(公告)号：US20220236657A1
公开(公告)日：2022-07-28
申请号：US17585315
申请日：2022-01-26
申请人： CANON KABUSHIKI KAISHA
发明人： Yuto Onozaki , Ryuji Murayama , Nobuhiro Yoshida , Hironori Minagawa
IPC分类号： G03G9/107 , G03G9/087 , G03G15/09 , G03G9/113 , G03G9/13
摘要： A magnetic carrier including a magnetic core and a coating resin configured to coat the surface of the magnetic core. The coating resin contains a graft resin A and a graft resin B. The coating resin (i) contains 1.0 mass % or more and 50.0 mass % or less of the graft resin A, and (ii) contains 50.0 mass % or more and 99.0 mass % or less of the graft resin B. The graft resin A has a unit Y1 represented by formula (1) and a unit Y2 represented by formula (2). The graft resin B (i) is a comb-shaped polymer having, as a branch, at least one moiety selected from, for example, a styrene-based polymer moiety and a (meth)acrylate-based polymer moiety, and (ii) contains the polysiloxane structure moiety at a content of 0.1 mass % or less.

9. 发明申请

US20220146963A1 DEVELOPING APPARATUS 有权
公开(公告)号：US20220146963A1
公开(公告)日：2022-05-12
申请号：US17582034
申请日：2022-01-24
申请人： CANON KABUSHIKI KAISHA
发明人： Kyosuke Takahashi
IPC分类号： G03G15/09 , G03G15/08
摘要： A change of a magnetic flux density distribution adjacent to a regulating blade 9 opposed to a developer regulation pole is suppressed at a low cost, while suppressing influence to design latitude of magnetic poles. A position on the outer peripheral surface of the developing sleeve where the magnetic flux density in the normal line direction of the outer peripheral surface of the developing sleeve is a maximum value position. The position on the outer peripheral surface of the developing sleeve 8 corresponding to a center portion position of the half peak range of the magnetic flux density distribution of the developer regulation pole is called half peak center portion. The developer regulation pole is formed such that the maximum value position is deviated not less than 3° in the circumferential direction of the developing sleeve from the half peak center portion position, and the position when the regulating blade 9 opposite is the developing sleeve is in a side of the maximum value position in which the half peak center portion position exists.

10. 发明申请

US20220075292A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220075292A1
公开(公告)日：2022-03-10
申请号：US17469936
申请日：2021-09-09
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Nobuaki Takahashi
IPC分类号： G03G15/09 , G03G15/08
摘要： According to one embodiment, the developing device includes a developing case containing toner, a mixer configured to diffuse the toner in the developing case, and a developing roller configured to develop a latent image formed on an image carrier. The developing case includes a circulation path through which air containing the toner flows. The developing roller is partially exposed from the developing case. The developing roller includes a sleeve rotating along with the movement of the image carrier and a plurality of magnetic pole portions disposed inside the sleeve. The developing roller holds the toner on the sleeve and supplies the toner to the image carrier to develop the latent image. The developing device further includes a magnet disposed apart from the developing roller. The magnet faces one of the magnetic pole portions across the sleeve.

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