公开(公告)号：US11880160B2

公开(公告)日：2024-01-23

申请号：US17494834

申请日：2021-10-06

Applicant: Hotaru Hashikawa ,  Tatsuya Kubo ,  Kazuki Yogosawa ,  Yuta Yabuta ,  Takuya Suganuma

Inventor： Hotaru Hashikawa ,  Tatsuya Kubo ,  Kazuki Yogosawa ,  Yuta Yabuta ,  Takuya Suganuma

IPC: G03G15/08 ,  G03G21/00 ,  B01D46/00 ,  G03G21/20 ,  B01D46/64 ,  B01D46/56

CPC classification number: G03G21/206 ,  B01D46/0005 ,  B01D46/56 ,  B01D46/64 ,  G03G15/0898 ,  B01D2275/10 ,  B01D2275/205 ,  B01D2275/307 ,  B01D2279/45 ,  G03G2221/1645

Abstract: A filter holding device includes an opening portion and a filter. The opening portion communicates an inside of the filter holding device with an outside of the filter holding device. The filter includes a first side and a second side. The first side faces the inside of the filter holding device. The second side faces the outside of the filter holding device. The filter has a lower weight density per unit volume at the first side than at the second side. At least a side face of the first side of the filter is covered with an air-impermeable member. The side face is a lateral face of the filter at the first side.

公开(公告)号：US10969708B2

公开(公告)日：2021-04-06

申请号：US16804812

申请日：2020-02-28

Applicant: Takuya Suganuma ,  Tatsuya Kubo

Inventor： Takuya Suganuma ,  Tatsuya Kubo

IPC: G03G15/08 ,  G03G15/09

Abstract: A developing device includes a developing roller to rotate in a predetermined direction of rotation and opposed to or in contact with an image bearer to form a development range, a cover to cover the developing roller downstream from the development range in the predetermined direction of rotation, a sheet member cantilevered by the cover to contact the developing roller with a flat face of the sheet member while trailing along the predetermined direction of rotation at a position downstream from the development range. The cover includes a large gap portion to form a first gap in a first predetermined range in the predetermined direction of rotation and a small gap portion disposed adjacent to and downstream from the large gap portion in the predetermined direction of rotation to form a second gap smaller than the first gap in a second predetermined range in the predetermined direction of rotation.

公开(公告)号：US20200301313A1

公开(公告)日：2020-09-24

申请号：US16804812

申请日：2020-02-28

Applicant: Takuya SUGANUMA ,  Tatsuya Kubo

Inventor： Takuya SUGANUMA ,  Tatsuya Kubo

IPC: G03G15/08 ,  G03G15/09

Abstract: A developing device includes a developing roller to rotate in a predetermined direction of rotation and opposed to or in contact with an image bearer to form a development range, a cover to cover the developing roller downstream from the development range in the predetermined direction of rotation, a sheet member cantilevered by the cover to contact the developing roller with a flat face of the sheet member while trailing along the predetermined direction of rotation at a position downstream from the development range. The cover includes a large gap portion to form a first gap in a first predetermined range in the predetermined direction of rotation and a small gap portion disposed adjacent to and downstream from the large gap portion in the predetermined direction of rotation to form a second gap smaller than the first gap in a second predetermined range in the predetermined direction of rotation.

公开(公告)号：US12189331B2

公开(公告)日：2025-01-07

申请号：US18015083

申请日：2021-08-17

Applicant: Kazuki Yogosawa ,  Tatsuya Kubo ,  Yuuki Tsuchiya ,  Shinya Karasawa

Inventor： Kazuki Yogosawa ,  Tatsuya Kubo ,  Yuuki Tsuchiya ,  Shinya Karasawa

IPC: G03G21/18 ,  G03G15/00 ,  G03G15/01 ,  G03G15/08 ,  G03G15/09 ,  G03G21/16

Abstract: A positioning member defines a facing distance between a first rotating body and a second rotating body. The positioning member includes a fitting portion, a groove, and a restricting member. A fitted portion of the first rotating body is to be rotatably fitted into the fitting portion. The groove has a groove shape extending in a predetermined direction from an opening to an abutting portion. A shaft portion of the second rotating body is to be slidably movable in the groove. The restricting member restricts movement of the shaft portion in the predetermined direction in a state in which the shaft portion abuts on the abutting portion in the groove. The restricting member is detachably disposed on the groove.

公开(公告)号：US11774878B2

公开(公告)日：2023-10-03

申请号：US17806297

申请日：2022-06-10

Applicant: Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo ,  Yuki Osato ,  Yuusuke Tomura ,  Masashi Hommi

Inventor： Ryotaro Konno ,  Junichi Matsumoto ,  Tatsuya Kubo ,  Yuki Osato ,  Yuusuke Tomura ,  Masashi Hommi

IPC: G03G15/08 ,  G03G15/00

CPC classification number: G03G15/086 ,  G03G15/0872 ,  G03G15/556 ,  G03G2215/0665 ,  G03G2215/0888

Abstract: An amount-of-remaining-toner detecting device includes: a toner housing portion in which a toner bottle is housed, the toner bottle having a bottle body that is cylindrical and in which toner is housed, and a cap that is attached to one end of the bottle body in an axial direction of the bottle body and from which the toner housed in the bottle body is discharged; and circuitry configured to detect an amount of remaining toner in the toner bottle housed in the toner housing portion. The toner housing portion includes a first pair of electrodes facing each other with the bottle body interposed between the first pair of electrodes, and a second pair of electrodes facing each other with the bottle body interposed between the second pair of electrodes, at respective positions closer to the cap than the first pair of electrodes are. The circuitry detects the amount of remaining toner in the bottle body, based on at least one of a capacitance value between the first pair of electrodes or a capacitance value between the second pair of electrodes.

公开(公告)号：US09897938B2

公开(公告)日：2018-02-20

申请号：US15368924

申请日：2016-12-05

Applicant: Shinnosuke Koshizuka ,  Koichi Yamazaki ,  Tatsuya Kubo ,  Atsushi Nakamoto ,  Nobuo Takami ,  Kazunori Suzuki ,  Naohiro Kawashima

Inventor： Shinnosuke Koshizuka ,  Koichi Yamazaki ,  Tatsuya Kubo ,  Atsushi Nakamoto ,  Nobuo Takami ,  Kazunori Suzuki ,  Naohiro Kawashima

IPC: G03G15/08

CPC classification number: G03G15/0881 ,  G03G15/081 ,  G03G15/0817

Abstract: A developing device includes a developer bearer to carry, by rotation, developer to a developing range, a casing including a developer container to contain the developer and housing the developer bearer, a gap retainer adjacent to the developer container and downstream from the developing range in a rotation direction of the developer bearer, an opposing wall opposing an end face of the gap retainer in an axial direction of the developer bearer, a first seal disposed between the end face of the gap retainer and the opposing wall, and a contact portion disposed adjacent to an end portion of the gap retainer in the axial direction of the developer bearer. The gap retainer secures a predetermined gap between the developer bearer and the gap retainer. The contact portion contacts, via a second seal, the gap retainer in a direction intersecting the axial direction of the developer bearer.

公开(公告)号：US09817335B2

公开(公告)日：2017-11-14

申请号：US15280268

申请日：2016-09-29

Applicant: Naohiro Kawashima ,  Koichi Yamazaki ,  Nobuo Takami ,  Atsushi Nakamoto ,  Shinnosuke Koshizuka ,  Tatsuya Kubo ,  Kazunori Suzuki ,  Hiroshi Hosokawa ,  Tetsuro Hirota ,  Kenji Kikuchi

Inventor： Naohiro Kawashima ,  Koichi Yamazaki ,  Nobuo Takami ,  Atsushi Nakamoto ,  Shinnosuke Koshizuka ,  Tatsuya Kubo ,  Kazunori Suzuki ,  Hiroshi Hosokawa ,  Tetsuro Hirota ,  Kenji Kikuchi

IPC: G03G15/08

CPC classification number: G03G15/0856 ,  G03G15/0858 ,  G03G15/086

Abstract: A powder amount detector includes a vibration plate secured to a powder container to contain powder and positioned at a predetermined position in a stationary state, a shaft to rotate inside the powder container, a contact member attached to the shaft, a vibration detector to detect vibration of the vibration plate, and a detection result processor to determine an amount of the powder in the powder container according to a detection result generated by the vibration detector. The contact member is to flip the vibration plate to cause the vibration plate to repeat elastic deformation and reversion to vibrate. The contact member is to exit an area opposed to the vibration plate after the contact member flips the vibration plate by the time the vibration plate returns to the predetermined position.

公开(公告)号：US09400450B2

公开(公告)日：2016-07-26

申请号：US14802747

申请日：2015-07-17

Applicant: Teppei Kikuchi ,  Hideki Kosugi ,  Tatsuya Kubo ,  Akira Fujimori ,  Kentaro Nodera ,  Shinnosuke Koshizuka

Inventor： Teppei Kikuchi ,  Hideki Kosugi ,  Tatsuya Kubo ,  Akira Fujimori ,  Kentaro Nodera ,  Shinnosuke Koshizuka

IPC: G03G15/08

CPC classification number: G03G15/0889 ,  G03G15/0865 ,  G03G15/0868 ,  G03G15/0875 ,  G03G2215/0665 ,  G03G2215/0819 ,  G03G2215/085

Abstract: A toner cartridge includes a toner container to store toner and two rotary agitation members to rotate to agitate toner in the toner container. The toner container has two arc-shaped portions adjacent to each other at an inner bottom wall of the toner container. The two rotary agitation members has edges to rotate along the two arc-shaped portions with rotation phases thereof shifted from each other. The two rotary agitation members are placed with rotation trajectories thereof partially overlapping each other.

公开(公告)号：US20130243491A1

公开(公告)日：2013-09-19

申请号：US13783528

申请日：2013-03-04

Applicant: Kentaro NODERA ,  Emi Kita ,  Akihiro Takayama ,  Susumu Tateyama ,  Shinnosuke Koshizuka ,  Tatsuya Kubo ,  Teppei Kikuchi

Inventor： Kentaro NODERA ,  Emi Kita ,  Akihiro Takayama ,  Susumu Tateyama ,  Shinnosuke Koshizuka ,  Tatsuya Kubo ,  Teppei Kikuchi

IPC: G03G15/08

CPC classification number: G03G15/0865 ,  G03G15/0867 ,  G03G15/0868 ,  G03G15/0879 ,  G03G15/0886

Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.

公开(公告)号：US20120163875A1

公开(公告)日：2012-06-28

申请号：US13413262

申请日：2012-03-06

Applicant: Susumu Tateyama ,  Yoshitaka Fujinuma ,  Tatsuya Kubo

Inventor： Susumu Tateyama ,  Yoshitaka Fujinuma ,  Tatsuya Kubo

IPC: G03G15/095

CPC classification number: G03G15/0893 ,  G03G15/0855 ,  G03G15/0865 ,  G03G2215/0827

Abstract: A developing device, process cartridge and image forming apparatus of a premix developing system, with which developer splashed by the transport member is not discharged from the device, fluctuations of the amount of developer discharged to the outside are not produced, and the output image quality is stable. This developing device is provided with a pocket part, which is installed in a depressed manner facing the outside in relation to the transport route formed by the transport member, and into and out of which part of the developer transported in the transport route flows. This pocket part is provided with a discharge port for discharging developer to outside the device when the surface of the developer flowing into the pocket part exceeds a specified height.

Abstract translation: 预处理显影系统的显影装置，处理盒和图像形成装置，由传送构件溅出的显影剂不会从装置中排出，不会产生排出到外部的显影剂的量的波动，并且输出图像质量 是稳定的 该显影装置设置有袋部，其相对于由输送部件形成的输送路径以面向外部的凹陷方式安装，并且输送到输送路径中输送的显影剂的哪一部分流动。 该袋部设置有当显影剂流入袋部的表面超过规定高度时将显影剂排出到装置外部的排出口。