Richard W Kooyer

US Patent:

6517591, Feb 11, 2003

Filed:

Dec 5, 2000

Appl. No.:

09/730054

Inventors:

Eric J. Hanson - Hudson WI
Richard L. Kooyer - Hastings MN

Assignee:

3M Innovative Properties Company - St. Paul MN
Hydro-Quebec Corporation - Montreal

International Classification:

H01M 600

US Classification:

296231, 429209, 42923195, 429233

Abstract:

An apparatus and method for treating a cathode material provided on a surface of a continuous thin-film substrate and a treated thin-film cathode having increased smoothness are disclosed. A web of untreated cathode material is moved between a feed mechanism and a take-up mechanism, and passed through a treatment station. The web of cathode material typically includes areas having surface defects, such as prominences extending from the surface of the cathode material. The surface of the cathode material is treated with an abrasive material to reduce the height of the prominences so as to increase an 85 degree gloss value of the cathode material surface by at least approximately 10. The web of cathode material may be subjected to a subsequent abrasive treatment at the same or other treatment station. Burnishing or lapping film is employed at a treatment station to process the cathode material. An abrasive roller may alternatively be used to process the web of cathode material.

US Patent:

62354256, May 22, 2001

Filed:

Dec 12, 1997

Appl. No.:

8/989502

Inventors:

Eric J. Hanson - Hudson WI
Richard L. Kooyer - Hastings MN

Assignee:

3M Innovative Properties Company - St. Paul MN
Hydro-Quebec - Montreal

International Classification:

H01M 402

US Classification:

429209

Abstract:

An apparatus and method for treating a cathode material provided on a surface of a continuous thin-film substrate and a treated thin-film cathode having increased smoothness are disclosed. A web of untreated cathode material is moved between a feed mechanism and a take-up mechanism, and passed through a treatment station. The web of cathode material typically includes areas having surface defects, such as prominences extending from the surface of the cathode material. The surface of the cathode material is treated with an abrasive material to reduce the height of the prominences so as to increase an 85 degree gloss value of the cathode material surface by at least approximately 10. The web of cathode material may be subjected to a subsequent abrasive treatment at the same or other treatment station. Burnishing or lapping film is employed at a treatment station to process the cathode material.

US Patent:

6037019, Mar 14, 2000

Filed:

Jan 8, 1998

Appl. No.:

8/981997

Inventors:

Richard L. Kooyer - Hastings MN
William A. Hendrickson - Stillwater MD

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

B29C 3508

US Classification:

427598

Abstract:

The present invention relates to a process for adhering a powder to a substrate. The process includes the steps of: a) providing an oscillating magnetic field, b) continuously introducing into the magnetic field coating material, a substrate, and a means of affixing the coating material to the substrate by forming a fluidized bed of at least the coating material and providing sufficient force to cause the coating material to adhere to the surface of the substrate, and c) continuously collecting the coated substrate.