DR. WILLIAM HUGO JOHNSON, D.D.S.
Dentist in Saint Paul, MN

6560089, May 6, 2003

Dec 18, 2001

10/022089

Thomas P. Miltich - Maple Grove MN
Paul A. Pignato - Stacy MN
Mark D. Breyen - Plymouth MN
Kurt J. Casby - Grant Township MN
William L. Johnson - Vadnais Heights MN

Medtronic, Inc. - Minneapolis MN

H01G 9045

361509, 361503, 361508, 361523, 361517, 29 2503, 29 2501

Flat electrolytic capacitors particularly for use in implantable medical devices having stacked cathode and anode layers particular electrical connections of the capacitor anode and cathode layers with a capacitor connector assembly. Anode terminal means extend through the capacitor case side wall for electrically connecting a plurality of the anode tabs to one another and providing an anode connection terminal at the exterior of the case that is electrically insulated from the case. A cathode terminal extends through or to an encapsulation area of the capacitor case side wall via a cathode terminal passageway for electrically connecting a plurality of the cathode tabs to one another and providing a cathode connection terminal at the exterior of the case. The connector assembly is electrically attached to the anode connection terminal for making electrical connection with the anode tabs and to the cathode connection terminal for making electrical connection with the cathode tabs. The cathode terminal passageway comprises a cathode opening extending through the case wall, and the cathode terminal comprises a cathode wire or feedthrough pin extending from the gathered cathode tabs into or through the cathode opening providing the cathode connection terminal electrically connected with the case.

6459566, Oct 1, 2002

May 19, 2000

09/574480

Kurt J. Casby - Eagan MN
Mark D. Breyen - Plymouth MN
William L. Johnson - Vadnais Heights MN
Thomas M. Nutzman - Andover MN
Anthony W. Rorvick - Brooklyn Park MN
Thomas P. Miltich - Maple Grove MN

Medtronic, Inc. - Minneapolis MN

H01G 900

361517, 361535, 361508, 361503, 607 5

An implantable medical device such as a defibrillator is described. The device includes an hermetically sealed housing containing a flat electrolytic capacitor and an energy source such as a battery. The battery is connected to the capacitor and provides charge thereto. The capacitor stores the charge at a relatively high voltage. The charge stored in the capacitor is discharged through a defibrillation lead to a site on or in the heart when fibrillation of the heart is detected by the implantable medical device. Methods of making and using the implantable medical device, the capacitor, and their various components are disclosed.

6402793, Jun 11, 2002

Jun 30, 2000

09/608206

Thomas P. Miltich - Maple Grove MN
Paul A. Pignato - Stacy MN
Mark D. Breyen - Plymouth MN
Kurt J. Casby - Grant Township MN
William L. Johnson - Vadnais Heights MN

Medtronic, Inc. - Minneapolis MN

H01G 900

29 2503, 361509, 361520, 361522, 361529, 361538, 361540, 361541, 607 5

Flat electrolytic capacitors particularly for use in implantable medical devices having stacked cathode and anode layers particular electrical connections of the capacitor anode and cathode layers with a capacitor connector assembly. Anode terminal means extend through the capacitor case side wall for electrically connecting a plurality of the anode tabs to one another and providing an anode connection terminal at the exterior of the case that is electrically insulated from the case. A cathode terminal extends through or to an encapsulation area of the capacitor case side wall via a cathode terminal passageway for electrically connecting a plurality of the cathode tabs to one another and providing a cathode connection terminal at the exterior of the case. The connector assembly is electrically attached to the anode connection terminal for making electrical connection with the anode tabs and to the cathode connection terminal for making electrical connection with the cathode tabs. The cathode terminal passageway comprises a cathode opening extending through the case wall, and the cathode terminal comprises a cathode wire or feedthrough pin extending from the gathered cathode tabs into or through the cathode opening providing the cathode connection terminal electrically connected with the case.

6009348, Dec 28, 1999

Jun 24, 1998

9/103972

Anthony W. Rorvick - Brooklyn Park MN
Mark D. Breyen - Plymouth MN
William L. Johnson - Vadnais Heights MN
Paul Pignato - Stacy MN
Joseph F. Lessar - Coon Rapids MN
Norma K. Bullock - Maple Grove MN

Medtronic, Inc. - Minneapolis MN

A61N 139, H01G 900

607 5

An implantable medical device such as a defibrillator is described. The device includes an hermetically sealed housing containing a flat electrolytic capacitor and an energy source such as a battery. The battery is connected to the capacitor and provides charge thereto. The capacitor stores the charge at a relatively high voltage. The charge stored in the capacitor is discharged through a defibrillation lead to a site on or in the heart when fibrillation of the heart is detected by the implantable medical device. Methods of making and using the implantable medical device, the capacitor, and their various components are disclosed.

6118652, Sep 12, 2000

Jun 24, 1998

9/104311

Kurt J. Casby - Eagan MN
Mark D. Breyen - Plymouth MN
William L. Johnson - Vadnais Heights MN
Thomas M. Nutzman - Andover MN
Anthony R. Rorvick - Brooklyn Park MN

Medtronic, Inc. - Minneapolis MN

H01G 900, A61N 139

361517

An implantable medical device such as a defibrillator is described. The device includes an hermetically sealed housing containing a flat electrolytic capacitor and an energy source such as a battery. The battery is connected to the capacitor and provides charge thereto. The capacitor stores the charge at a relatively high voltage. The charge stored in the capacitor is discharged through a defibrillation lead to a site on or in the heart when fibrillation of the heart is detected by the implantable medical device. Methods of making and using the implantable medical device, the capacitor, and their various components are disclosed.

8160284, Apr 17, 2012

Sep 9, 2008

12/207317

William A. Johnson - Roseville MN, US
Mead C. Killion - Elk Grove Village IL, US

Etymotic Research, Inc. - Elk Grove Village IL

H04R 25/00

381321, 381312

Certain embodiments of the present technology provide improved amplification circuits and hearing aids that can utilize such amplification circuits. In an embodiment, for example, an amplification circuit includes: a first sub circuit configured to create a voltage drop when a supply voltage is above a first voltage; and a second sub circuit configured to create a reverse voltage drop when the supply voltage is below a second voltage, wherein the first and second sub circuits operate to maintain idling current within a range. Certain embodiments of the present technology also provide hearing aids that include removable dampers.

D523144, Jun 13, 2006

Nov 19, 2004

29/217589

William K. Wenger - Minneapolis MN, US
William L. Johnson - Vadnais Heights MN, US
Jeffrey A. Swanson - Cambridge MN, US

2403

D24155

2012017, Jul 5, 2012

Mar 12, 2012

13/418110

William A. Johnson - Roseville MN, US
Mead C. Killion - Elk Grove Village IL, US

ETYMOTIC RESEARCH, INC. - Elk Grove Village IL

H04R 25/00

381321

Certain embodiments of the present technology provide improved amplification circuits and hearing aids that can utilize such amplification circuits. In an embodiment, for example, an amplification circuit includes: a first sub circuit configured to create a voltage drop when a supply voltage is above a first voltage; and a second sub circuit configured to create a reverse voltage drop when the supply voltage is below a second voltage, wherein the first and second sub circuits operate to maintain idling current within a range. Certain embodiments of the present technology also provide hearing aids that include removable dampers.