Avery Dennison Corporation

Michael Lang

Eng-Pi Chang

Ronald F Sieloff

Philip Yi Zhi Chu

Dong-Tsai Hseih

Le-Hoa Hong

Zhisong Huang

Mark Wisniewski

Reza Mehrabi

Karen L Spilizewski

Kejian (Kevin) Huang

Hsiao Ken Chuang

Craig S Corcoran

Cindy Chia-Wen Chiu

William J Jaecklein

A method of making a microneedle array structure () comprising a plurality of simultaneously formed microneedles (), each microneedle () having a protrusion () and a passageway () extending therethrough. The method comprises the steps of pressing an embossable sheet material between a complimentary tools and radiantly heating the sheet material using radiant energy from a radiant energy source. One tool is relatively-radiantly-transparent, and another tool and/or the sheet material is relatively-radiantly-absorptive.

Method of making microneedles

A microchamber structure () comprising a base layer (), a lid layer (), and at least one microchamber () having a cross-sectional shape with a depth (d) of less than 1000 microns and a width (w) of less than 1000 microns. The base layer () includes a depression () and the lid layer () includes a projection () positioned within the depression () to together define the cross-sectional shape of the microchamber ().

Covered microchamber structures

Growing community of inventors

Chagrin Falls, OH, United States of America

Michael Lang