Positively chargeable single-layer electrophotographic photosensitive member, process cartridge, and image forming apparatus
US-2016349635-A1 · Dec 1, 2016 · US
Quinone derivative and electrophotographic photosensitive member
US10126667B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10126667-B2 |
| Application number | US-201715616381-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 7, 2017 |
| Priority date | Jun 15, 2016 |
| Publication date | Nov 13, 2018 |
| Grant date | Nov 13, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A quinone derivative is represented by general formula (1), (2), or (3). In general formulae (1), (2), and (3), R 1 , R 2 , R 3 , R 4 , R 11 , R 12 , R 13 , R 14 , R 21 , R 22 , R 23 , and R 24 each represent, independently of one another, a hydrogen atom, a cyano group, a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, or an optionally substituted alkoxy group having a carbon number of 1-6. R 5 , R 6 , R 15 , R 16 , R 25 , and R 26 each represent, independently of one another, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, an optionally substituted aryl group having a carbon number of 6-14, an optionally substituted aralkyl group having a carbon number of 7-12, or an optionally substituted cycloalkyl group having a carbon number of 3-10.
First claim
Opening claim text (preview).
What is claimed is: 1. A quinone derivative represented by chemical formula (1-3) shown below: 2. An electrophotographic photosensitive member comprising a conductive substrate and a photosensitive layer, wherein the photosensitive layer contains a charge generating material, a hole transport material, the quinone derivative according to claim 1 , and a binder resin. 3. The electrophotographic photosensitive member according to claim 2 , wherein the photosensitive layer is a single-layer photosensitive layer. 4. The electrophotographic photosensitive member according to claim 2 , wherein the charge generating material includes X-form metal-free phthalocyanine or Y-form titanyl phthalocyanine. 5. The electrophotographic photosensitive member according to claim 2 , wherein the hole transport material includes a compound represented by chemical formula (H-1) shown below:
Assignees
Inventors
Classifications
- G03G5/0609Primary
containing oxygen · CPC title
containing oxygen and nitrogen · CPC title
Polycarbonates · CPC title
the ring being unsaturated · CPC title
containing cyano groups and doubly-bound oxygen atoms bound to the carbon skeleton · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10126667B2 cover?
- A quinone derivative is represented by general formula (1), (2), or (3). In general formulae (1), (2), and (3), R 1 , R 2 , R 3 , R 4 , R 11 , R 12 , R 13 , R 14 , R 21 , R 22 , R 23 , and R 24 each represent, independently of one another, a hydrogen atom, a cyano group, a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, or an optionally substituted alkoxy gro…
- Who is the assignee on this patent?
- Kyocera Document Solutions Inc
- What technology area does this patent fall under?
- Primary CPC classification G03G5/0609. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 13 2018 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).