Multilayer organic photoreceptor employing a dual layer of charge transporting polymers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 3, 1998
Grant Date -
N/A
app pub date -
Dec 20, 1991
filing date -
Dec 20, 1991
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This invention relates to a charge transport dual layer for use in a multilayer photoreceptor comprising a support layer, a charge generating layer and a charge transport dual layer including a first transport layer containing a charge-transporting polymer, and a second transport layer containing a charge-transporting polymer having a lower weight percent of charge transporting segments than the charge-transporting polymer in the first transport layer. This structure has greater resistance to corona effects and provides for a longer service life. The charge-transporting polymers preferably comprise polymeric arylamine compounds.
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 | |
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XEROX CORPORATION | 201 MERRITT 7 NORWALK CT 06851-1056 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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DeFeo, Paul J | Sodus Point, NY | 39 | 647 |
# of filed Patents : 39 Total Citations : 647 | |||
Limburg, William W | Penfield, NY | 83 | 2079 |
# of filed Patents : 83 Total Citations : 2079 | |||
Pai, Damodar M | Fairport, NY | 123 | 3059 |
# of filed Patents : 123 Total Citations : 3059 | |||
Yanus, John F | Webster, NY | 173 | 3545 |
# of filed Patents : 173 Total Citations : 3545 |
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Patent Citation Ranking
- 27 Citation Count
- G03G Class
- 81.27 % this patent is cited more than
- 27 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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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Jul 04, 2016 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 05, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 05, 2016 |
Jun 05, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jan 15, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Jun 05, 2012 | I | Issuance | |
Nov 01, 2011 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 02, 2009 | P | Published | |
Aug 25, 2008 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MIGUCHI, MITSUAKI;CHIDA, TAISUKE;EZAKI, GO;REEL/FRAME:021745/0544 Owner name: ROHM CO., LTD., JAPAN Effective Date: Aug 25, 2008 |
Jan 25, 2006 | F | Filing | |
Jan 25, 2005 | PD | Priority Date |

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