Inventor · disambiguated record
Tadao Igarashi
Also filed as: IGARASHI TADAO
8 granted patents·72 citations·filing 1983–1991
86Inventor score
Technology areasG11B
Files withSONY CORP8
Top patents by PatentIndex Score
8 records- 0176US4918558AMagnetic tape cassette having reel locks controlled by an optical tape end detecting elementSONY CORP·Filed 1988·Granted Apr 17, 1990·23 cites·8 claims
- 0261US4791504ATape cassette with lid lock and tape characteristic indicating memberSONY CORP·Filed 1987·Granted Dec 13, 1988·13 cites·9 claims
- 0352US4896238ATape cassette with pressable cap for fixing reel on reel baseSONY CORP·Filed 1987·Granted Jan 23, 1990·9 cites·7 claims
- 0449US4864448ATape cassetteSONY CORP·Filed 1987·Granted Sep 5, 1989·8 cites·6 claims
- 0546US5143217ATape-cartridge case with thin, single layer side wall for reading upc codeSONY CORP·Filed 1991·Granted Sep 1, 1992·7 cites·5 claims
- 0646USD293569SReel for a video tape cassetteSONY CORP·Filed 1985·Granted Jan 5, 1988·5 cites·1 claims
- 0742US4646188AVTR tape cassetteSONY CORP·Filed 1983·Granted Feb 24, 1987·5 cites·5 claims
- 0835USD293570SReel for a video tape cassetteSONY CORP·Filed 1985·Granted Jan 5, 1988·2 cites·1 claims
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