Inventor · disambiguated record
Masahiro Utumi
Also filed as: UTUMI MASAHIRO
12 granted patents·230 citations·filing 1977–1985
92Inventor score
Files withFUJI PHOTO FILM CO LTD12
Top patents by PatentIndex Score
12 records- 0196US4135031AMagnetic recording substanceFUJI PHOTO FILM CO LTD·Filed 1977·Granted Jan 16, 1979·58 cites·12 claims
- 0290US4138229ACleaning tape for magnetic headFUJI PHOTO FILM CO LTD·Filed 1977·Granted Feb 6, 1979·34 cites·10 claims
- 0380US4146031ALeader or trailer for a magnetic tapeFUJI PHOTO FILM CO LTD·Filed 1977·Granted Mar 27, 1979·19 cites·10 claims
- 0477US4617226AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1984·Granted Oct 14, 1986·32 cites·12 claims
- 0577US4582757AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1984·Granted Apr 15, 1986·18 cites·13 claims
- 0669US4171406AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1978·Granted Oct 16, 1979·13 cites·9 claims
- 0761US4745017AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1984·Granted May 17, 1988·10 cites·6 claims
- 0861US4598014AMagnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1984·Granted Jul 1, 1986·10 cites·13 claims
- 0960US4567057AMethod of making magnetic recording mediumFUJI PHOTO FILM CO LTD·Filed 1984·Granted Jan 28, 1986·10 cites·2 claims
- 1058US4275108ALeader or trailer tape for a magnetic tapeFUJI PHOTO FILM CO LTD·Filed 1979·Granted Jun 23, 1981·15 cites·12 claims
- 1150US4670333AMagnetic recording mediaFUJI PHOTO FILM CO LTD·Filed 1985·Granted Jun 2, 1987·7 cites·8 claims
- 1240US4567063AProcess for producing magnetic recording mediaFUJI PHOTO FILM CO LTD·Filed 1985·Granted Jan 28, 1986·4 cites·11 claims
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