Inventor · disambiguated record
Ryoichi Tsukada
Also filed as: TSUKADA RYOICHI
6 granted patents·476 citations·filing 1988–1998
89Inventor score
Files withTOTO LTD6
Top patents by PatentIndex Score
6 records- 0197US4971106AAutomatically operating valve for regulating water flow and faucet provided with said valveTOTO LTD·Filed 1988·Granted Nov 20, 1990·109 cites·13 claims
- 0297US4955535AAutomatically operating valve for regulating water flow and faucet provided with said valveTOTO LTD·Filed 1989·Granted Sep 11, 1990·123 cites·5 claims
- 0396US4967794AAutomatically operating valve for regulating water flow and faucet provided with said valveTOTO LTD·Filed 1989·Granted Nov 6, 1990·86 cites·11 claims
- 0494US5085399AAutomatically operating valve for regulating water flow and faucet provided with said valveTOTO LTD·Filed 1990·Granted Feb 4, 1992·75 cites·5 claims
- 0583US5926863ALow flush volume toiletTOTO LTD·Filed 1997·Granted Jul 27, 1999·33 cites·16 claims
- 0677US5983413AHigh performance flush toiletTOTO LTD·Filed 1998·Granted Nov 16, 1999·50 cites·36 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →