|
| US4770744 | 10 Dic 1986 | 13 Sep 1988 | Devron-Hercules Inc. | Headbox slice lip adjustment device |
| US4803393 | 14 Jul 1987 | 7 Feb 1989 | Toyota Jidosha Kabushiki Kaisha | Piezoelectric actuator |
| US4841936 | 4 Jun 1986 | 27 Jun 1989 | Toyota Jidosha kabushiki Kaisha | Fuel injection control device of an internal combustion engine |
| US5155409 | 11 Jul 1991 | 13 Oct 1992 | Caterpillar Inc. | Integral conductor for a piezoelectric actuator |
| US5163209 | 18 Abr 1990 | 17 Nov 1992 | Hitachi, Ltd. Hitachi Metals, Ltd. | Method of manufacturing a stack-type piezoelectric element |
| US5218259 | 18 Feb 1992 | 8 Jun 1993 | Caterpillar Inc. | Coating surrounding a piezoelectric solid state motor stack |
| US5233260 | 15 Jul 1992 | 3 Ago 1993 | Hitachi, Ltd. Hitachi Metals, Ltd. | Stack-type piezoelectric element and process for production thereof |
| US5787947 | 19 Nov 1996 | 4 Ago 1998 | Tetra Laval Holdings & Finance S.A. | Flexible nozzle integrated with a transformable wire |
| US5866971 | 14 Ago 1996 | 2 Feb 1999 | Active Control Experts, Inc. | Hybrid motor |
| US5875632 | 30 May 1997 | 2 Mar 1999 | Siemens Aktiengesellschaft | Electrohydraulic drive |
| US6093995 | 25 Ene 1999 | 25 Jul 2000 | Active Control eXperts, Inc. | Hybrid motor |
| US6116144 | 11 Ago 1998 | 12 Sep 2000 | Bayer Aktiengesellschaft Carl Schenck Aktiengesellschaft | Pressure motor for electro-rheological fluids |
| US7157833 | 23 Feb 2005 | 2 Ene 2007 | Atlas Copco Electric Tools GmbH | Tool using a piezo actuator |
| US7928638 | 30 Jun 2008 | 19 Abr 2011 | | Electromechanical actuators |