Inventor · disambiguated record
Tsunehiro Maruo
Also filed as: MARUO TSUNEHIRO
5 granted patents·129 citations·filing 1975–1997
83Inventor score
Files withSONY CORP5
Top patents by PatentIndex Score
5 records- 0189US4053829AApparatus for detecting the direction of a magnetic field to sense the position of, for example, a rotary element or the likeSONY CORP·Filed 1975·Granted Oct 11, 1977·57 cites·17 claims
- 0281US5282190AData storage disk drive with a piezoelectric member and a resilient member between a head and a diskSONY CORP·Filed 1992·Granted Jan 25, 1994·33 cites·8 claims
- 0372US5663940AOptical pickup apparatus including hologram elementSONY CORP·Filed 1994·Granted Sep 2, 1997·19 cites·10 claims
- 0451US4438398APosition detecting signal generatorSONY CORP·Filed 1981·Granted Mar 20, 1984·12 cites·24 claims
- 0549US5717667AOptical pickup apparatus including an optical rotation deviceSONY CORP·Filed 1997·Granted Feb 10, 1998·8 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →