Inventor · disambiguated record
Hiroyuki Hashizume
Also filed as: HASHIZUME HIROYUKI
5 granted patents·87 citations·filing 1976–1997
82Inventor score
Top patents by PatentIndex Score
5 records- 0159US5999495ATimepiece movementSEIKO CLOCK INC·Filed 1997·Granted Dec 7, 1999·27 cites·17 claims
- 0259US4047846APower-steering pumpKAYABA INDUSTRY CO LTD·Filed 1976·Granted Sep 13, 1977·16 cites·8 claims
- 0354US4492545ACam ring for vane pumpKAYABA INDUSTRY CO LTD·Filed 1982·Granted Jan 8, 1985·14 cites·19 claims
- 0446US5930205ATimepiece movementSEIKO CLOCK INC·Filed 1997·Granted Jul 27, 1999·14 cites·26 claims
- 0544US5566140AClock movementSEIKO CLOCK INC·Filed 1995·Granted Oct 15, 1996·16 cites·36 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →