Inventor · disambiguated record
Keiji Akiyama
Also filed as: AKIYAMA KEIJI
26 granted patents·621 citations·filing 1987–2018
97Inventor score
Files withFUJI PHOTO FILM CO LTD20SONY CORP3JGC CORP1OSADA MASAKAZU1SONY SEMICONDUCTOR SOLUTIONS CORP1
Top patents by PatentIndex Score
26 records- 0197US6455222B1Lithographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 2000·Granted Sep 24, 2002·50 cites·5 claims
- 0296US6985714B2Communication system, communication terminal and communication methodSONY CORP·Filed 2002·Granted Jan 10, 2006·167 cites·28 claims
- 0394US6653042B1Lithographic printing plate precursor, method for producing the same, and method of lithographic printingFUJI PHOTO FILM CO LTD·Filed 2000·Granted Nov 25, 2003·37 cites·6 claims
- 0493US6397749B1Heat-sensitive lithographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 2000·Granted Jun 4, 2002·28 cites·22 claims
- 0592US6423467B1Photosensitive resin compositionFUJI PHOTO FILM CO LTD·Filed 1999·Granted Jul 23, 2002·48 cites·3 claims
- 0687US6632589B2Lithographic printing processFUJI PHOTO FILM CO LTD·Filed 2001·Granted Oct 14, 2003·21 cites·10 claims
- 0785US6884560B2Lithographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 2001·Granted Apr 26, 2005·16 cites·8 claims
- 0884US4845008ALight-sensitive positive working, o-guinone diazide presensitized plate with mixed solventFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jul 4, 1989·48 cites·11 claims
- 0981US6114089APositive working photosensitive lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 1998·Granted Sep 5, 2000·32 cites·2 claims
- 1079US5464724APS plate and method for processing sameFUJI PHOTO FILM CO LTD·Filed 1993·Granted Nov 7, 1995·40 cites·17 claims
- 1169US6277541B1Photosensitive lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 1999·Granted Aug 21, 2001·20 cites·13 claims
- 1263US6637334B2Heat-sensitive lithographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 2001·Granted Oct 28, 2003·17 cites·13 claims
- 1362US5047309APhotosensitive diazonium recording material with sulfur compound containing undercoat layerFUJI PHOTO FILM CO LTD·Filed 1989·Granted Sep 10, 1991·15 cites·15 claims
- 1460US7532665B2Wireless communication apparatus and method, and computer programSONY CORP·Filed 2005·Granted May 12, 2009·2 cites·3 claims
- 1556US6852470B1Heat-sensitive lithographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 2000·Granted Feb 8, 2005·2 cites·9 claims
- 1656US5254430APresensitized plate having anodized aluminum substrate, hydrophilic layer containing phosphonic or phosphinic compound and photosensitive layer containing O-quinone diazide compoundFUJI PHOTO FILM CO LTD·Filed 1992·Granted Oct 19, 1993·13 cites·16 claims
- 1753US5250393AMethod for developing presensitized plate for use in making lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 1991·Granted Oct 5, 1993·12 cites·11 claims
- 1853US5149614ADeveloper compositions for ps plates and method for developing the same wherein the developer composition contains a surfactant having an aryl group, an oxyalkylene group and a sulfate ester or sulfonic acid groupFUJI PHOTO FILM CO LTD·Filed 1989·Granted Sep 22, 1992·10 cites·8 claims
- 1952US5582952APhotosensitive lithographic printing plate containing a two-equivalent coupler residue-containing polymerFUJI PHOTO FILM CO LTD·Filed 1995·Granted Dec 10, 1996·13 cites·4 claims
- 2049US5126229AProcess for preparing positive or negative lithographic printing plates using a developer having at least one alkali-soluble mercapto compound and/or thioether compoundFUJI PHOTO FILM CO LTD·Filed 1990·Granted Jun 30, 1992·9 cites·27 claims
- 2148US8137433B2Method of regenerating metal, regenerated metal, material for lithographic printing plate bases, and lithographic printing plateOSADA MASAKAZU·Filed 2008·Granted Mar 20, 2012·0 cites·5 claims
- 2244US11177891B2Communication device, communication system, and communication methodSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2018·Granted Nov 16, 2021·0 cites·12 claims
- 2340US10215486B2Liquefied gas production facilityJGC CORP·Filed 2013·Granted Feb 26, 2019·0 cites·6 claims
- 2439US5684806ACommunication apparatus for TDMA systemSONY CORP·Filed 1995·Granted Nov 4, 1997·13 cites·11 claims
- 2537US5230988AMethod of making lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 1992·Granted Jul 27, 1993·4 cites·18 claims
- 2635US5958646APositive-working photosensitive composition and process for image formationFUJI PHOTO FILM CO LTD·Filed 1995·Granted Sep 28, 1999·4 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →