Hutchinson Technology Corporation

Mound Laser & Photonics Center, Inc.

Philip W Anderson

Michael Wayne Davis

Peter Francis Ladwig

Kurt C Swanson

Paul Valentine Pesavento

John A Theget

Joel B Michaletz

Timothy A McDaniel

Patrick R LaLonde

A method for forming a cutting tool includes masking a metal base with one or more masks, the one or more masks including at least one variable permeability mask, and chemically etching the masked metal base to form a blade of the cutting tool.

Chemically sharpening blades

A chemically etched needle is provided herein. The chemically etched needle includes a metal base having a first side and a second side. The chemically etched needle also includes a chemically etched blade at one end of the metal base and formed at an intersection of a distal diverging surface and a proximal diverging surface, at least one of the diverging surfaces slopes inward towards the second side.

Needle with rounded edge

A chemically etched cutting tool includes a metal base having a first side and a second side, and a chemically etched blade on at least one side of the metal base, the chemically etched blade forming a cutting edge at the intersection of the first side of the chemically etched blade and the second side of the chemically etched blade. The first side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions. The second side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions.

Chemically sharpened blades

Growing community of inventors

Dassel, MN, United States of America

Philip W Anderson