Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus each including the electrophotographic photosensitive member
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Dec 21, 2017
app pub date -
Jun 16, 2017
filing date -
Jun 21, 2016
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
Provided is an electrophotographic photosensitive member capable of suppressing a ghost image. The electrophotographic photosensitive member includes, in this order: a support; an intermediate layer containing metal oxide particles; and a photosensitive layer, in which the intermediate layer contains at least one kind of compound X selected from the group consisting of a compound represented by the formula (1) and a compound represented by the formula (2).
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CANON KABUSHIKI KAISHA | 30-2 SHIMOMARUKO 3-CHOME OHTA-KU TOKYO 146-8501 |
International Classification(s)

- 2017 Application Filing Year
- G03G Class
- 2629 Applications Filed
- 2246 Patents Issued To-Date
- 85.44 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kawaguchi, Daisuke | Toride, JP | 106 | 391 |
# of filed Patents : 106 Total Citations : 391 | |||
Murakami, Takeshi | Numazu, JP | 273 | 5723 |
# of filed Patents : 273 Total Citations : 5723 | |||
Sugiyama, Kazumichi | Numazu, JP | 39 | 267 |
# of filed Patents : 39 Total Citations : 267 | |||
Tanaka, Daisuke | Yokohama, JP | 276 | 1679 |
# of filed Patents : 276 Total Citations : 1679 |
Cited Art Landscape
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Patent Citation Ranking
- 5 Citation Count
- G03G Class
- 23.29 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 10, 2026 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 10, 2030 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Dec 17, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jul 31, 2018 | P | Publication | |
Jul 11, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 15, 2018 | P | Published | |
Aug 31, 2017 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 04, 2017 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SOMEYA, TAKAHISA;WAKUDA, KENSAKU;REEL/FRAME:043738/0589 Owner name: SONY CORPORATION, JAPAN Effective Date: Aug 04, 2017 |
Mar 11, 2016 | F | Filing | |
Mar 24, 2015 | PD | Priority Date |

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