Inventor · disambiguated record
Ryoichi Shibata
Also filed as: SHIBATA RYOICHI
11 granted patents·1 pending application·342 citations·filing 1982–2007
93Inventor score
Top patents by PatentIndex Score
12 records- 0193US5579825ADie casting method and die casting machineHITACHI METALS LTD·Filed 1994·Granted Dec 3, 1996·54 cites·50 claims
- 0291US4724305ADirectly-heating roller for fuse-fixing toner imagesHITACHI METALS LTD·Filed 1986·Granted Feb 9, 1988·46 cites·20 claims
- 0390US5979534ADie casting methodHITACHI METALS LTD·Filed 1996·Granted Nov 9, 1999·47 cites·18 claims
- 0485US4776070ADirectly-heating roller for fixing toner imagesHITACHI METALS LTD·Filed 1987·Granted Oct 11, 1988·30 cites·19 claims
- 0584US6546815B2Reading method of screw rotation angle of hand-held impact wrench, hand-vibration detection method, tightening evaluation method and control method of hand-held power screw loosening toolKUKEN CO LTD·Filed 2001·Granted Apr 15, 2003·38 cites·15 claims
- 0682US4888464AHeat roll for electrophotographyHITACHI METALS LTD·Filed 1988·Granted Dec 19, 1989·27 cites·6 claims
- 0780US6478075B1Die-casting method and die-castings obtained therebyHITACHI METALS LTD·Filed 1998·Granted Nov 12, 2002·26 cites·16 claims
- 0876US5595615AHigh toughness and high strength aluminum alloy castingHITACHI METALS LTD·Filed 1994·Granted Jan 21, 1997·24 cites·8 claims
- 0976US4557337AImpact wrenchKATUSHIKI KIISHA KUKEN·Filed 1984·Granted Dec 10, 1985·27 cites·6 claims
- 1050US4874927AHeating roll for fixing tonerHITACHI METALS LTD·Filed 1988·Granted Oct 17, 1989·13 cites·3 claims
- 1149US2009308624A1Screw tightening axial force control method using impact wrenchSHIBATA RYOICHI·Filed 2007·Application pending·0 cites
- 1248US4460049AImpact wrenchKUKEN KK·Filed 1982·Granted Jul 17, 1984·10 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →