Inventor · disambiguated record
Toshio Kawamata
Also filed as: KAWAMATA TOSHIO
31 granted patents·515 citations·filing 1972–1999
97Inventor score
Top patents by PatentIndex Score
31 records- 0196US4963433AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1989·Granted Oct 16, 1990·72 cites·8 claims
- 0292US4952444AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1988·Granted Aug 28, 1990·45 cites·6 claims
- 0388US4071362AElectrophotographic copying filmFUJI PHOTO FILM CO LTD·Filed 1973·Granted Jan 31, 1978·30 cites·15 claims
- 0487US5384175AMagnetic recording disc comprising a non-magnetic underlayer and a magnetic layer comprising ferromagnetic particles and a binderFUJI PHOTO FILM CO LTD·Filed 1992·Granted Jan 24, 1995·41 cites·4 claims
- 0584US4096015AMethod of making laminated plastic cardsFUJI PHOTO FILM CO LTD·Filed 1976·Granted Jun 20, 1978·39 cites·6 claims
- 0679US5958565AMagnetic recording tape favorably employable for computer data storageFUJI PHOTO FILM CO LTD·Filed 1997·Granted Sep 28, 1999·31 cites·32 claims
- 0779US5112679AMagnetic diskFUJI PHOTO FILM CO LTD·Filed 1989·Granted May 12, 1992·24 cites·6 claims
- 0876US6251509B1Magnetic tapeFUJI PHOTO FILM CO LTD·Filed 1999·Granted Jun 26, 2001·27 cites·6 claims
- 0974US5300314AProcess for preparing a magnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1992·Granted Apr 5, 1994·22 cites·10 claims
- 1073US5358777AMagnetic recording medium comprising an underlayer of non magnetic powder and binder resin and a magnetic layer with a specified Young's modulusFUJI PHOTO FILM CO LTD·Filed 1993·Granted Oct 25, 1994·36 cites·7 claims
- 1171US5370917AMagnetic recording disc comprising magnetic powder and a binder in a container which includes a nonwoven fabric liner comprising polypropylene and rayon fibersFUJI PHOTO FILM CO LTD·Filed 1993·Granted Dec 6, 1994·19 cites·5 claims
- 1258US5549955AMagnetic recording diskFUJI PHOTO FILM CO LTD·Filed 1995·Granted Aug 27, 1996·13 cites·6 claims
- 1358US5389418AFlexible magnetic recording disk and method for preparing the sameFUJI PHOTO FILM CO LTD·Filed 1993·Granted Feb 14, 1995·11 cites·11 claims
- 1458US4654258AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1986·Granted Mar 31, 1987·10 cites·14 claims
- 1557US3938178AProcess for treatment of semiconductorORIGIN ELECTRIC·Filed 1972·Granted Feb 10, 1976·10 cites·9 claims
- 1654US5085911AFlexible magnetic disc with a two layer protective coating which top layer is a ultra violet radiation cured compound with specified elasticity modulusFUJI PHOTO FILM CO LTD·Filed 1990·Granted Feb 4, 1992·9 cites·8 claims
- 1753US4518626AProcess for preparing magnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1983·Granted May 21, 1985·7 cites·5 claims
- 1852US5455093AFlexible magnetic disk and process for preparing the sameFUJI PHOTO FILM CO LTD·Filed 1993·Granted Oct 3, 1995·8 cites·7 claims
- 1950US5049448AMagnetic recording medium containing an ester lubricant branched from the number 2 carbon position of the acid residueFUJI PHOTO FILM CO LTD·Filed 1989·Granted Sep 17, 1991·7 cites·11 claims
- 2050US5022519AFlexible disk jacketFUJI PHOTO FILM CO LTD·Filed 1984·Granted Jun 11, 1991·6 cites·6 claims
- 2149US6129979AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1998·Granted Oct 10, 2000·8 cites·26 claims
- 2243US4970121AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1988·Granted Nov 13, 1990·8 cites·9 claims
- 2340US4577077ASurface smoothing method for disk-like recording mediumFUJI PHOTO FILM CO LTD·Filed 1983·Granted Mar 18, 1986·3 cites·7 claims
- 2440US4548772ASurface smoothing method for magnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1983·Granted Oct 22, 1985·6 cites·5 claims
- 2538US5057373AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1989·Granted Oct 15, 1991·6 cites·10 claims
- 2637US5011395ASurface smoothing apparatus for magnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1983·Granted Apr 30, 1991·6 cites·3 claims
- 2736US5508117AMagnetic recording medium and production process thereofFUJI PHOTO FILM CO LTD·Filed 1993·Granted Apr 16, 1996·5 cites·4 claims
- 2835US5145738AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1989·Granted Sep 8, 1992·2 cites·7 claims
- 2933US5178925AMagnetic disc having a magnetic layer with a glass transition temperature of at least 75° C. which contains magnetic metal powder of specified pH and surface areaFUJI PHOTO FILM CO LTD·Filed 1990·Granted Jan 12, 1993·3 cites·14 claims
- 3032US4992328AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1988·Granted Feb 12, 1991·1 cites·14 claims
- 3130US5024885AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1988·Granted Jun 18, 1991·0 cites·7 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →