公开(公告)号：US20230285627A1

公开(公告)日：2023-09-14

申请号：US18118470

申请日：2023-03-07

Applicant: SHARP KABUSHIKI KAISHA

Inventor： MASAFUMI SAKAMOTO ,  TATSUFUMI ATSUMI ,  NORIAKI TAGUCHI

IPC: A61L9/20

CPC classification number: A61L9/205 ,  A61L2209/14 ,  A61L2209/111 ,  A61L2209/12

Abstract: The air purifier is provided with a housing having an air intake port and an exhaust port, a filter unit including a photocatalytic filter and housed in a unit housing section within the housing, a light source that irradiates the photocatalytic filter with light, an air blowing fan that generates an air flow passing through the unit housing section, and a contamination sensor provided between the photocatalytic filter and the air blowing fan. In a case where a controller determines that organic substances excessively adheres to the photocatalytic filter on the basis of detection values of the contamination sensor, it drives the light source at the maximum light quantity and drives the air blowing fan at the minimum air speed to refresh the photocatalytic filter.

公开(公告)号：US20230243531A1

公开(公告)日：2023-08-03

申请号：US18103810

申请日：2023-01-31

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Takaki KAWAGOSHI ,  NORIAKI TAGUCHI ,  MASAFUMI SAKAMOTO ,  TATSUFUMI ATSUMI

IPC: F24F8/15 ,  B01D53/88

CPC classification number: F24F8/15 ,  B01D53/885 ,  B01D2255/802

Abstract: An air purifier includes a housing that includes an intake port and an exhaust port, a filter unit that includes a photocatalytic filter and is housed in a unit housing within the housing, a light source that exposes the photocatalytic filter to light, and a blast fan that generates a flow of air passing through the unit housing. The photocatalytic filter is formed in a wavy shape in which ridge portions and trough portions extending in a first direction are alternately arranged in a second direction orthogonal to the first direction, and the photocatalytic filter is housed in the unit housing such that the flow of air flows along the first direction.

公开(公告)号：US20190196398A1

公开(公告)日：2019-06-27

申请号：US16231562

申请日：2018-12-23

Applicant: SHARP KABUSHIKI KAISHA

Inventor： MASAFUMI SAKAMOTO ,  HIDEAKI KADOWAKI

IPC: G03G21/20 ,  G03G15/20

CPC classification number: G03G21/206 ,  G03G15/2017 ,  G03G15/2039 ,  G03G15/2064 ,  G03G2221/1645

Abstract: An image forming apparatus includes an exhaust unit. The exhaust unit includes a first duct. The first duct includes a plurality of communication ports, and an exhaust fan for discharging air of the first duct to an outside. The plurality of communication ports are each formed such that distances to the exhaust fan are different from each other. Further, the first duct includes an inflow port which is formed on an upstream of flow of air from the communication port formed on the most upstream side of the flow of the air among the plurality of communication ports, and to which the auxiliary air is supplied from a first exhaust fan provided in the outside.

公开(公告)号：US20190234812A1

公开(公告)日：2019-08-01

申请号：US16256753

申请日：2019-01-24

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIDEAKI KADOWAKI ,  MASAFUMI SAKAMOTO

IPC: G01L1/04 ,  G01D5/02 ,  G03G21/16 ,  G03G15/00

CPC classification number: G01L1/046 ,  G01D5/02 ,  G03G15/50 ,  G03G21/1633

Abstract: A detection device according to a first aspect includes a first arm, a second arm, and a detection unit having two states as output. The first arm and the second arm each have a corresponding pressure receiving portion pushed by one of detection targets and are respectively rotatable about rotation axes as rotation centers along the same straight line such that the first arm and the second arm have different positions when the corresponding pressure receiving portion is pushed and not pushed by one of the detection targets. The output of the detection unit is switched to one of the two states in accordance with the positions of the arms.

公开(公告)号：US20190196397A1

公开(公告)日：2019-06-27

申请号：US16231408

申请日：2018-12-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： MASAFUMI SAKAMOTO ,  HIDEAKI KADOWAKI

IPC: G03G21/20 ,  G03G15/20 ,  G03G15/00

CPC classification number: G03G21/206 ,  G03G15/2017 ,  G03G15/6555 ,  G03G2221/1645

Abstract: An image forming apparatus includes an apparatus body and an exhaust unit. The exhaust unit includes a first duct and a separating member. The first duct includes a first duct A forming member and a first duct B forming member provided with a plurality of communication ports which form one side surface of a second sheet transport path through which a sheet after heating and fixing is transported, a first exhaust fan for discharging air of the first duct to an outside of the apparatus body, and a filter disposed on a downstream side from the second sheet transport path. The first duct separates the second sheet transport path from spaces other than the first duct in the apparatus body. Further, the separating member separates the second sheet transport path from spaces other than the first duct in the image forming apparatus.