Inventor · disambiguated record
Gumpei Yokoyama
Also filed as: YOKOYAMA GUMPEI
2 granted patents·31 citations·filing 1975–1998
61Inventor score
Top patents by PatentIndex Score
2 records- 0162US6470907B1Existing pipe cut-off method, existing pipe slitting method, piping structure, and valve insertion method for inserting a valve in a line without stopping passage of water or fluidSUIKEN CO LTD·Filed 1998·Granted Oct 29, 2002·25 cites·34 claims
- 0235US3988983ATransfer machine and systemKAWASAKI HEAVY IND LTD·Filed 1975·Granted Nov 2, 1976·6 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →