Fixing device and image forming apparatus including a multi-layer nip formation pad

US9529309B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9529309-B2
Application numberUS-201414531313-A
CountryUS
Kind codeB2
Filing dateNov 3, 2014
Priority dateNov 7, 2013
Publication dateDec 27, 2016
Grant dateDec 27, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via the nip formation pad to support the nip formation pad against pressure from the pressure rotator. The nip formation pad conducts heat in a thickness direction thereof perpendicular to an axial direction of the fixing rotator and a recording medium conveyance direction. The nip formation pad includes a multi-conductivity layer having a thermal conductivity varying in the axial direction of the fixing rotator and a support side layer contacting the support and having a thermal conductivity greater than a thermal conductivity of the support.

First claim

Opening claim text (preview).

What is claimed is: 1. A fixing device comprising: a fixing rotator rotatable in a predetermined direction of rotation; a heater disposed opposite the fixing rotator to heat the fixing rotator; a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator; a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, the fixing nip through which a record…

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Frequently asked questions

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What does patent US9529309B2 cover?
A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via …
Who is the assignee on this patent?
Ishii Kenji, Takagi Hiromasa, Seki Takayuki, and 2 more
What technology area does this patent fall under?
Primary CPC classification G03G15/2053. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).