US Patent No: 7,403,924

Number of patents in Portfolio can not be more than 2000

Communication terminal, portable terminal, circulating server, providing server, electronic book distributing method, and electronic book distributing program

ALSO PUBLISHED AS: 20040153422

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Importance

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Abstract

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A portable terminal 20 according to the present invention is provided with an electronic book coupon storage 22, a book data receiver 24, an electronic book coupon deductor 25, and a book data decryptor 26. The electronic book coupon storage 22 stores an electronic book coupon used in acquisition of book data containing a plurality of page data units, along with a decryption key used in decryption of the plurality of page data units. The book data receiver 24 receives the book data from an electronic book providing server 30. The electronic book coupon deductor 25 deducts an electronic worth equivalent to a price according to page data requested to be readout, from the electronic book coupon. The book data decryptor 26 decrypts the page data in steps of one page data unit by use of the decryption key in conjunction with the deduction of the electronic worth.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KEN SAKAMURATOKYO4
NOBORU KOSHIZUKATOKYO, JP4
NTT DOCOMO, INC.TOKYO2283

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aono, Hiroshi Yokosuka, JP 49 163
Hongo, Sadayuki Yokohama, JP 55 172
Ishii, Kazuhiko Yokohama, JP 85 404
Koshizuka, Noboru Musashino, JP 47 100
Mori, Kensaku Yokohama, JP 76 147
Sakamura, Ken Shinagawa-ku, JP 71 386

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2002/0112,172 System and method for secure distribution of digital products 35 2002
* 2007/0073,624 CONTENT TRANSACTION SYSTEM AND METHOD, AND PROGRAM PROVIDING MEDIUM THEREFOR 13 2006
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 5,532,920 Data processing system and method to enforce payment of royalties when copying softcopy books 420 1994
 
ADREA, LLC (1)
* 5,986,690 Electronic book selection and delivery system 177 1994
 
E-NET CO., LTD. (1)
* 2001/0011,234 System and method for transacting with graded prices by users based on a network 1 2001
 
HITACHI MAXELL, LTD. (1)
* 6,895,393 Electronic book distributing system by use of purchase certificate and devices therefor 10 1999
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
* 6,453,305 Method and system for enforcing licenses on an open network 30 1999
 
InterTrust Technologies Corp. (1)
* 5,892,900 Systems and methods for secure transaction management and electronic rights protection 2012 1996
 
NUVOMEDIA, INC. (AGREEMENT AND APPROVAL OF MERGER BETWEEN GEMSTAR EBOOK GROUP AND NUVOMEDIA, INC.) (1)
2001/0011,238 DIGITAL RIGHTS MANAGEMENT SYSTEM 32 1998
 
TELEPAQ TECHNOLOGY INC. (1)
* 2001/0051,926 Method for safely encrypting transmission data 6 2001
 
STUART J. RADLOFF, OPERATING TRUSTEE IN BANKRUPTCY (1)
* 6,633,877 Method and apparatus for delivery of selected electronic works and for controlling reproduction of the same 57 2000
 
BOZAK INVESTMENTS, LLC (1)
* 6,434,535 System for prepayment of electronic content using removable media and for prevention of unauthorized copying of same 146 1998
 
SCHIEWE, TIMOTHY R., JOINT TENANT WITH RIGHTS OF SURVIVORSHIP (1)
* 6,385,614 Electronic bookshelf with multi-user features 70 1998
 
INTEL CORPORATION (1)
* 6,647,411 Secure cached subscription service 36 1999
 
LIGHTNING SOURCE, INC. (1)
* 6,704,733 Distributing electronic books over a computer network 84 2001
 
COLUMBIA INNOVATION ENTERPRISE (1)
* 7,013,296 Using electronic security value units to control access to a resource 18 2000
 
NOKIA CORPORATION (1)
* 6,886,036 System and method for enhanced data access efficiency using an electronic book over data networks 50 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
CRANBROOK TECHNOLOGY, LLC (1)
* 2011/0191,692 SYSTEM AND METHOD FOR E-BOOK CONTEXTUAL COMMUNICATION 6 2010
 
BLACKBERRY LIMITED (2)
8,656,316 Device, system and method for selecting, sharing and displaying electronic content 0 2010
8,588,693 Device, system and method for selecting, sharing and displaying electronic content 0 2010
 
AMAZON TECHNOLOGIES, INC. (2)
* 8,150,864 Automated monitoring and control of access to content from a source 0 2006
8,380,728 Personalized searchable library with highlighting capabilities 0 2009
 
GOOGLE INC. (1)
8,255,820 Electronic paper display device event tracking 0 2009
* Cited By Examiner

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 22, 2016
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 22, 2020
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