Fixing device and image forming apparatus having nip pad including a center bend line
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 26, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jun 20, 2017
filing date -
Jul 15, 2016
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A fixing device includes a nip former including a first face to form a fixing nip, a second face being disposed upstream from the first face in a rotation direction of a rotator and defining a predetermined angle relative to the first face, and a bent portion coupling the first face to the second face. An inner circumferential surface of the rotator slides over the first face. A lateral end accumulation portion and a center accumulation portion are defined by the second face and the bent portion of the nip former and the inner circumferential surface of the rotator. The lateral end accumulation portion is accumulated with a lubricant in a first amount. The center accumulation portion is disposed inboard from the lateral end accumulation portion in an axial direction of the rotator and accumulated with the lubricant in a second amount greater than the first amount.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
RICOH COMPANY LTD | 3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 1438555 ?1438555 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fujimoto, Ippei | Kanagawa, JP | 123 | 6491 |
# of filed Patents : 123 Total Citations : 6491 | |||
Ishii, Kenji | Kanagawa, JP | 331 | 9787 |
# of filed Patents : 331 Total Citations : 9787 | |||
Sawada, Kazunari | Shizuoka, JP | 37 | 495 |
# of filed Patents : 37 Total Citations : 495 | |||
Seki, Takayuki | Kanagawa, JP | 99 | 1512 |
# of filed Patents : 99 Total Citations : 1512 | |||
Seto, Takashi | Kanagawa, JP | 99 | 1638 |
# of filed Patents : 99 Total Citations : 1638 | |||
Yoshinaga, Hiroshi | Chiba, JP | 255 | 10871 |
# of filed Patents : 255 Total Citations : 10871 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- G03G Class
- 30.80 % this patent is cited more than
- 6 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 26, 2026 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 26, 2030 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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Oct 31, 2022 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 31, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Sep 23, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 23, 2022 |
May 16, 2022 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 15, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551) year of fee payment: 4 |
Sep 23, 2014 | I | Issuance | |
Sep 03, 2014 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 24, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHRISTMAS, MICHAEL C.;HALL, TREVOR;SIGNING DATES FROM 20130109 TO 20130110;REEL/FRAME:029685/0352 Owner name: RENOLD PLC., UNITED KINGDOM |
Sep 06, 2012 | P | Published | |
Mar 05, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHERER, STEFAN;GLOECKLE, MARKUS;PFISTER, TOBIAS;REEL/FRAME:028248/0480 Owner name: ROBERT BOSCH GMBH, GERMANY Effective Date: Mar 05, 2012 |
Feb 23, 2012 | F | Filing | |
Feb 23, 2011 | PD | Priority Date |

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