IP, Reports & Roadmaps | Aug 23, 2006

Sidley Austin LLP announces client settlement of patent infringement claims against LED manufacturer

Sidley Austin LLP announced today that the firm represented Professor Gertrude Neumark Rothschild in her settlement of claims of patent infringement against Toyoda Gosei Co. Ltd., and Toyoda Gosei North America Corporation.

On July 27, 2005, Professor Neumark filed suit in the Southern District of New York alleging that Toyoda Gosei had infringed U.S. Patent No. 4,904,618, "Process for Doping Crystals of Wide Band Gap Semiconductors," and U.S. Patent No. 5,252,499, "Wide Band-Gap Semiconductors Having Low Bipolar Resistivity and Method of Formation" through the unauthorized manufacture, importation, use, sale and/or offer for sale of light emitting diodes ("LEDs") and laser diode created using the processes described and claimed in each of these patents. Pursuant to the settlement agreement, Professor Neumark has granted rights under both of the Neumark patents to Toyoda Gosei.

LEDs are semiconductor diodes which convert electricity into light. Semiconductors are materials with resistivities in the range between metals and insulators, in which the electrical charge carrier concentration increases with increasing temperature over a given temperature range. Despite the recognized potential of LEDs, their commercial use was initially limited because it was not commercially feasible to produce LEDs in green and other high spectral ranges. Through the process claimed in Professor Neumark`s patents, it has become commercially feasible to produce such LEDs, and they have increasingly gained general acceptance as a superior lighting source for a large number of products.

Professor Neumark is Howe Professor Emerita of Materials Science and Engineering, Professor Emerita of Applied Physics and Applied Mathematics and a Special Research Scientist, Columbia University, New York, New York, from where she also received her Ph.D in chemistry in 1949. She was the first woman to hold a named Chair in the Faculty of Engineering and Applied Science at Columbia University.

Sidley Austin LLP is one of the world`s largest full-service law firms, with more than 1,600 lawyers practicing in 15 U.S. and international cities including Beijing, Brussels, Frankfurt, Geneva, Hong Kong, London, Shanghai, Singapore and Tokyo. 

Add comment

You can add a comment by filling out the form below. Plain text formatting. Comments are moderated.

Question: What is 1 + 5 ?
Your answer:
FEATURED

BJB Connection Interface for Outdoor LED Modules

BJB Connection Interface for Outdoor LED Modules The model for the future design of human living areas is a "smart city" with intelligent technologies and applications. Smart Cities utilize sensors and controllers in outdoor lighting to conserve resources and enhance human comfort and safety. Read more »

FEATURED

Cree Launches Industry’s Highest Efficacy 90 CRI COB LEDs

Cree Launches Industry’s Highest Efficacy 90 CRI COB LEDs Cree, Inc. announces the XLamp® eTone™ LEDs, a breakthrough set of chip-on-board (COB) LEDs that delivers beautiful 90 color rendering index (CRI) light quality at the same efficacy as today’s standard 80 CRI LEDs. Delivering up to 155 lumens per watt (LPW) at 3000K CCT, 85°C, Cree’s new eTone COB ... Read more »

FEATURED

Nanosilica Filled Epoxy with High Abrasion Resistance

Nanosilica Filled Epoxy with High Abrasion Resistance Master Bond EP30NS is a two component epoxy system that cures at room temperature or more rapidly at elevated temperatures. It is optically clear especially in thin sections and can be used as an adhesive, sealant, coating and encapsulation compound. EP30NS offers dimensional stability, linear ... Read more »

FEATURED

WHITE PAPER - How to Overcome the Security Challenges of Smart Lighting

WHITE PAPER - How to Overcome the Security Challenges of Smart Lighting IoT-powered lighting systems are backbones for smart building applications such as energy harvesting, space optimization, and predictive maintenance. Read more »

EDITORIAL

High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »

page_peel