Inventor · disambiguated record
Akira Ushimaru
Also filed as: USHIMARU AKIRA
18 granted patents·208 citations·filing 1977–1995
94Inventor score
Files withFUJI PHOTO FILM CO LTD18
Top patents by PatentIndex Score
18 records- 0186US4428974AProcess for producing magnetic recording materialFUJI PHOTO FILM CO LTD·Filed 1982·Granted Jan 31, 1984·27 cites·10 claims
- 0278US4861674AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1988·Granted Aug 29, 1989·23 cites·9 claims
- 0373US5626796ALight sensitive composition for black matrix, substrate for color filter, and liquid crystal displayFUJI PHOTO FILM CO LTD·Filed 1995·Granted May 6, 1997·35 cites·12 claims
- 0470US5165999AMagnetic recording medium containing a polyurethane resin having a modified amine acid incorporated into the resinFUJI PHOTO FILM CO LTD·Filed 1990·Granted Nov 24, 1992·18 cites·17 claims
- 0565US5153053AMagnetic recording medium comprising a lower magnetic layer containing an amine modified vinyl chloride copolymer and an upper magnetic layer containing a vinyl chloride copolymer with a polar groupFUJI PHOTO FILM CO LTD·Filed 1990·Granted Oct 6, 1992·15 cites·15 claims
- 0665US4612235AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1985·Granted Sep 16, 1986·13 cites·5 claims
- 0760US4222777AProcess for forming color imagesFUJI PHOTO FILM CO LTD·Filed 1977·Granted Sep 16, 1980·7 cites·22 claims
- 0859US5063119AMagnetic recording medium comprising a fluorine containing oligomer surfactant in or on the magnetic layerFUJI PHOTO FILM CO LTD·Filed 1990·Granted Nov 5, 1991·12 cites·7 claims
- 0951US5368949AMagnetic recording medium having specific subbing layers and process for recovery and processing thereofFUJI PHOTO FILM CO LTD·Filed 1991·Granted Nov 29, 1994·8 cites·23 claims
- 1051US5336561AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1992·Granted Aug 9, 1994·8 cites·12 claims
- 1144US5073439AMagnetic recording medium comprising a vinyl chloride based resin group containing an epoxy group or a polar or both and further a polyurethane resin containing three hydroxyl groups and one polar groupFUJI PHOTO FILM CO LTD·Filed 1990·Granted Dec 17, 1991·6 cites·7 claims
- 1243US5132179AMagnetic recording medium comprising plural magnetic layersFUJI PHOTO FILM CO LTD·Filed 1991·Granted Jul 21, 1992·5 cites·10 claims
- 1342US5164259AMagnetic recording medium having a specified fatty acid hydroxylaluminum salt as a lubricant contained in or on the magnetic layerFUJI PHOTO FILM CO LTD·Filed 1991·Granted Nov 17, 1992·8 cites·16 claims
- 1442US5139866AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1990·Granted Aug 18, 1992·5 cites·8 claims
- 1538US5254404AMagnetic recording medium comprising ferromagnetic particles having crystallite size of less than 450 angstroms and a specified polyurethane binderFUJI PHOTO FILM CO LTD·Filed 1992·Granted Oct 19, 1993·6 cites·4 claims
- 1637US5356726AMagnetic recording medium comprising a magnetic layer having ferromagnetic powder, a specified binder and a lubricant composition which includes a specified tertiary branched chain fatty acid esterFUJI PHOTO FILM CO LTD·Filed 1993·Granted Oct 18, 1994·3 cites·4 claims
- 1735US5270109AMagnetic recording medium having a magnetic layer comprising ferromagnetic powder, a binder and a specified organosilicon lubricant compoundFUJI PHOTO FILM CO LTD·Filed 1992·Granted Dec 14, 1993·4 cites·12 claims
- 1835US5244736AMagnetic recording medium having multiple magnetic layers with specified compositionsFUJI PHOTO FILM CO LTD·Filed 1991·Granted Sep 14, 1993·5 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →