Inventor · disambiguated record
Hiromasa Marumo
Also filed as: MARUMO HIROMASA
6 granted patents·1 pending application·110 citations·filing 1989–2006
84Inventor score
Top patents by PatentIndex Score
7 records- 0180US6554476B2Dynamic pressure bearing device and method of manufacturing the sameSANKYO SEIKI SEISAKUSHO KK·Filed 2001·Granted Apr 29, 2003·20 cites·8 claims
- 0276US5122896AElectrochromic display device with the counter electrode being preliminarily held in reduced or oxidized stateSANKYO SEIKI SEISAKUSHO KK·Filed 1989·Granted Jun 16, 1992·43 cites·16 claims
- 0359US5599864APolyarylene sulfide resin composition and optical pick-up parts formed from the sameSANKYO SEIKI SEISAKUSHO KK·Filed 1994·Granted Feb 4, 1997·11 cites·14 claims
- 0456US6155721ADynamic-pressure fluid bearingSANKYO SEIKI SEISAKUSHO KK·Filed 1998·Granted Dec 5, 2000·20 cites·6 claims
- 0549US6758597B2Bearing member and method for manufacturing the same and dynamic pressure bearing deviceSANKYO SEIKI SEISAKUSHO KK·Filed 2001·Granted Jul 6, 2004·3 cites·9 claims
- 0645US5763967ADynamic-pressure fluid bearingSANKYO SEIKI SEISAKUSHO KK·Filed 1996·Granted Jun 9, 1998·13 cites·6 claims
- 0731US2006239169A1Optical head device and manufacturing method thereforMARUMO HIROMASA·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →