Inventor · disambiguated record
Shigeyuki Hadama
Also filed as: HADAMA SHIGEYUKI
3 granted patents·40 citations·filing 1976–1991
71Inventor score
Top patents by PatentIndex Score
3 records- 0155US4087213ASelf-aligning reciprocating plunger pumpATSUGI MOTOR PARTS CO LTD·Filed 1976·Granted May 2, 1978·14 cites·1 claims
- 0249US4573890AVane pump with locating pins for cam ringATSUGI MOTOR PARTS CO LTD·Filed 1984·Granted Mar 4, 1986·15 cites·4 claims
- 0348US5187337AFluid pressure actuated switch for fluid pumpATSUGI UNISIA CORP·Filed 1991·Granted Feb 16, 1993·11 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →