Inventor · disambiguated record
Kazuyoshi Koizumi
Also filed as: KOIZUMI KAZUYOSHI
6 granted patents·2 pending applications·107 citations·filing 1992–2010
84Inventor score
Top patents by PatentIndex Score
8 records- 0177US5522485ARotary damperNIFCO INC·Filed 1993·Granted Jun 4, 1996·36 cites·14 claims
- 0276USD486833SRotary damperNIFCO INC·Filed 2001·Granted Feb 17, 2004·22 cites·1 claims
- 0371US5211431AReciprocating device for movable memberNIFCO INC·Filed 1992·Granted May 18, 1993·33 cites·13 claims
- 0459US7938238B2Rotary damperNIFCO INC·Filed 2004·Granted May 10, 2011·8 cites·9 claims
- 0557US8827056B2Damper deviceKOIZUMI KAZUYOSHI·Filed 2010·Granted Sep 9, 2014·2 cites·8 claims
- 0642USD539296SRotary damperNIFCO INC·Filed 2005·Granted Mar 27, 2007·6 cites·1 claims
- 0741US2009277735A1Rotation damperYAMAGUCHI KEIJI·Filed 2006·Application pending·0 cites
- 0832US2012211317A1Damper deviceKOIZUMI KAZUYOSHI·Filed 2010·Application pending·0 cites
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