Maro Publications


Patents with Abstracts

from 7/24/12

Maro Topics


Patents with Abstracts

2. Nanobarcodes

U.S. Patent 8,541,480 (September 24, 2013), “Apparatus and Method for Modifying Physical Properties of Nanostructure using Focused Electron Beam, and Nano-Barcode and Serial-Junction Nanowire Fabricated thereby,”  Jinsoo Joo, Young Ki Hong, Dong Hyuk Park, Seong Gi Jo, and Min Ho Koo (Korea University Research and Business Foundation, Seoul, South Korea).

Barcodes are efficient labels for areas from manufacturing to consumers.  Barcodes can efficiently store and transmit data in a variety of applications.  Nano or micro barcodes can greatly improves storage capacity and accuracy because of their small size.  Stable bar structures are developed and information stored by changing an observable property without changing the physical structure.  Joo et al found that pi.-conjugated polymer nanostructure can form stable bars of polythiophene, poly(p-phenylenevinylene), polythiophenevinylene, poly(p-phenylene), and poly(p-phenylacetylene), and polypyrrole.  The electronic structure or color can be changed by electron beams without changing outward structure.  The focused electron beam-irradiating unit may be from a scanning electron microscope, a transmission electron microscope or an E-beam lithography system.  The electron beam may have a diameter of 1 nm, and may be focused to a size of 1000 nm or less.   Thus a bar pattern of the above polymers may be formed and irradiated with a pattern of electron beams and read by a radiation detector. 

1. 8,215,943 
Heat-transfer label assembly and apparatus for applying heat-transfer labels
Tsai et al of Avery Dennison Corporation, California, developed a heat-transfer label assembly and an apparatus for applying heat-transfer labels.  Labels are positioned over the support for transfer from the support to an article, each of the labels including an ink design.  A plurality of spacers are positioned over the support but not over the label, the spacers not being transferable with the labels from the support to an article.  The distance from the top of the spacers to the support exceeds the distance from the top of the labels to the support so that, when the assembly is wound into a roll, the labels do not come into contact with the bottom surface of an underlying portion of the support. In a preferred embodiment, the apparatus for applying heat-transfer labels includes a pad, a die-mark reduction device on the pad, a heated die positioned over the pad, and a motor for moving the heated die into and out of engagement with the die-mark reduction device. One type of die-mark reduction device has a top that includes a plurality of recesses spaced apart from one another, the recesses constituting non-contact areas with the die, the spaces between the recesses constituting contact areas with the die. (RDC 7/24/2012)


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(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
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Copyright 2012 by Roger D. Corneliussen.
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** Date of latest addition; date of first entry is 7/24/2012.