Inventor · disambiguated record
Kunihiko Tatsu
Also filed as: TATSU KUNIHIKO
6 granted patents·3 pending applications·351 citations·filing 1986–2009
87Inventor score
Top patents by PatentIndex Score
9 records- 0193US5031925AKeyless chuck for rotary toolMATSUSHITA ELECTRIC WORKS LTD·Filed 1989·Granted Jul 16, 1991·98 cites·5 claims
- 0292US4695065AKeyless chuck for rotary toolMATSUSHITA ELECTRIC WORKS LTD·Filed 1986·Granted Sep 22, 1987·116 cites·9 claims
- 0388US5964039ACutting method and saw toolMATSUSHITA ELECTRIC WORKS LTD·Filed 1996·Granted Oct 12, 1999·92 cites·4 claims
- 0480US7694750B2Hammer drillPANASONIC ELEC WORKS CO LTD·Filed 2006·Granted Apr 13, 2010·14 cites·8 claims
- 0569US7828074B2Hammer drillPANASONIC ELEC WORKS CO LTD·Filed 2009·Granted Nov 9, 2010·7 cites·2 claims
- 0661US5044233ADepth adjuster for rotary tools such as screwdriversMATSUSHITA ELECTRIC WORKS LTD·Filed 1990·Granted Sep 3, 1991·24 cites·2 claims
- 0747US2007131439A1Power impact tool adapterMATSUSHITA ELECTRIC WORKS LTD·Filed 2006·Application pending·0 cites
- 0846US2009065228A1Power impact toolHASHIMOTO KOICHI·Filed 2008·Application pending·0 cites
- 0944US2007131440A1Power impact tool adapterMATSUSHITA ELECTRIC WORKS LTD·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →