Spine formation device, saddle-stitch bookbinding apparatus, sheet-edge cutting apparatus, sheet processing apparatus, and image forming apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 29, 2012
Grant Date -
Sep 23, 2010
app pub date -
Mar 16, 2010
filing date -
Mar 18, 2009
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A spine formation device includes a sheet conveyer, a presser, and a spine formation member. The sheet conveyer conveys a bundle of folded sheets with a folded portion of the bundle of sheets forming a front end portion of the bundle of sheets. The presser is disposed downstream from the sheet conveyer in a sheet conveyance direction in which the sheet conveyer conveys the bundle of sheets. The presser is movable to press opposed sides of the front end portion of the bundle of sheets. The spine formation member is movably disposed downstream from the presser in the sheet conveyance direction. The spine formation member includes a groove portion that contacts and positions the bundle of sheets to define an amount by which the bundle of sheets protrudes from the presser and a spine formation face that forms a spine at the folded portion of the bundle of sheets.
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 | |
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RICOH COMPANY LIMITED | TOKYO 143-8555 |
International Classification(s)

- 2010 Application Filing Year
- B31F Class
- 104 Applications Filed
- 64 Patents Issued To-Date
- 61.54 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Asami, Shinji | Machida, JP | 60 | 1100 |
# of filed Patents : 60 Total Citations : 1100 | |||
Kikkawa, Naohiro | Kawasaki, JP | 60 | 996 |
# of filed Patents : 60 Total Citations : 996 | |||
Suzuki, Nobuyoshi | Tokyo, JP | 186 | 3968 |
# of filed Patents : 186 Total Citations : 3968 |
Cited Art Landscape
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Patent Citation Ranking
- 5 Citation Count
- B31F Class
- 4.12 % this patent is cited more than
- 13 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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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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

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