Inventor · disambiguated record
Shigeyoshi Nagata
Also filed as: NAGATA SHIGEYOSHI
8 granted patents·134 citations·filing 1978–2003
88Inventor score
Files withEBARA CORP2OVAL ENG CO LTD2HITACHI POWDERED METALS1KYOIKU HAGUROMA KOGYO KABUSHIK1KYOUIKO GEAR MFG1
Top patents by PatentIndex Score
8 records- 0182US4329130AFlow meter with helical toothed rotors having no pulsation and zero contact pressureOVAL ENG CO LTD·Filed 1979·Granted May 11, 1982·31 cites·3 claims
- 0281US4224015APositive displacement flow meter with helical-toothed rotorsOVAL ENG CO LTD·Filed 1978·Granted Sep 23, 1980·30 cites·4 claims
- 0372US4899609AGears having a tooth-profile with a smaller relative of curvature at a contact pointKYOUIKO GEAR MFG·Filed 1986·Granted Feb 13, 1990·31 cites·8 claims
- 0462US5697772AScrew rotor and method of generating tooth profile thereforEBARA CORP·Filed 1996·Granted Dec 16, 1997·14 cites·11 claims
- 0557US5800151AScrew rotor and method of generating tooth profile thereforEBARA CORP·Filed 1997·Granted Sep 1, 1998·12 cites·11 claims
- 0651US7048666B2Silent chain power transmitting apparatusHITACHI POWDERED METALS·Filed 2003·Granted May 23, 2006·5 cites·7 claims
- 0739US5205679ARotary tool for generating bevel gearsKYOIKU HAGUROMA KOGYO KABUSHIK·Filed 1992·Granted Apr 27, 1993·10 cites·9 claims
- 0822US4971487AMethod for cutting involute gearsTECHNOMAX EIGHTY FIVE KK·Filed 1987·Granted Nov 20, 1990·1 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →