Inventor · disambiguated record
Johannes J. M. Schoenmakers
Also filed as: SCHOENMAKERS JOHANNES J M
10 granted patents·100 citations·filing 1977–1989
89Inventor score
Technology areasG11B
Files withPHILIPS CORP10
Top patents by PatentIndex Score
10 records- 0175US4615585AOptical focusing devicePHILIPS CORP·Filed 1985·Granted Oct 7, 1986·22 cites·5 claims
- 0274US4485420AMagnetic-tape cassette apparatus having very low azimuth errorPHILIPS CORP·Filed 1982·Granted Nov 27, 1984·19 cites·26 claims
- 0363US4926278AMagnetic tape cassette apparatus having reduced azimuth errorPHILIPS CORP·Filed 1989·Granted May 15, 1990·13 cites·22 claims
- 0460US4497008AMagnetic-tape cassette with pivotal, nesting coverPHILIPS CORP·Filed 1982·Granted Jan 29, 1985·11 cites·9 claims
- 0560US4329723AAdjustable mounting for a magnetic tape headPHILIPS CORP·Filed 1980·Granted May 11, 1982·11 cites·9 claims
- 0655US4451862AMagnetic head mounting mechanism for automatic azimuth controlPHILIPS CORP·Filed 1982·Granted May 29, 1984·9 cites·30 claims
- 0750US4484719AMagnetic-tape cassette with anti-telescoping guides and reelsPHILIPS CORP·Filed 1982·Granted Nov 27, 1984·7 cites·18 claims
- 0843US4468711AMode-switching linkage for a tape cassette apparatusPHILIPS CORP·Filed 1981·Granted Aug 28, 1984·5 cites·10 claims
- 0933US4434955AMagnetic-tape cassettePHILIPS CORP·Filed 1982·Granted Mar 6, 1984·2 cites·1 claims
- 1030US4152735ATape transport arrangement for tensioning and transporting a magnetic tapePHILIPS CORP·Filed 1977·Granted May 1, 1979·1 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →