Inventor · disambiguated record
Eiji Kawaguchi
Also filed as: KAWAGUCHI EIJI
7 granted patents·2 pending applications·254 citations·filing 1993–2024
87Inventor score
Top patents by PatentIndex Score
9 records- 0187US6473516B1Large capacity steganographyASA SYSTEMS INC·Filed 1999·Granted Oct 29, 2002·119 cites·25 claims
- 0279US6978035B2Information hiding system, method, and printed matter into which information is hiddenASA SYSTEMS INC·Filed 2001·Granted Dec 20, 2005·24 cites·18 claims
- 0375US6697498B2Method and computer program product for hiding information in an indexed color imageASA SYSTEMS INC·Filed 2001·Granted Feb 24, 2004·32 cites·20 claims
- 0474US5408459AOpening/closing door mechanism for a recording/reproducing apparatusCOPAL CO LTD·Filed 1993·Granted Apr 18, 1995·33 cites·12 claims
- 0559US12249452B2Ignition coil for use in internal combustion engineDIAMOND & ZEBRA ELECTRIC MFG CO LTD·Filed 2022·Granted Mar 11, 2025·0 cites·8 claims
- 0659US2024274351A1Ignition coilDIAMOND&ZEBRA ELECTRIC MFG CO LTD·Filed 2024·Application pending·0 cites
- 0758US7231049B2Electronic mailing systemKAWAGUCHI EIJI·Filed 2002·Granted Jun 12, 2007·9 cites·14 claims
- 0846US6742712B1Information card and information card systemASA SYSTEMS INC·Filed 1999·Granted Jun 1, 2004·37 cites·18 claims
- 0934US2002051559A1Application of bit-plane decomposition steganography to progressively compressed dataFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →