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III-Nitrides 2012-2013 Patent Landscape

  • May 2013
  • -
  • KnowMade
  • -
  • 59 pages

Group III nitride semiconductors are recognized as having great potential for short wave length emission (LEDs, LDs, UV detectors) and high-temperature electronics devices. The field of III-N semiconductors has shown an intensive patenting activity since early 1990s, with a substantial increase during the past decade. Today, there are more than 27,000 patent families filed all over the world. The most active companies are Panasonic, Toshiba, Samsung, Sumitomo and Hitachi. The patents related to LED technology account for more than 40% of filings, followed by those related to GaN substrates (<20%), Power Devices (<15%), Epi-wafers (<10%), Laser (>5%) and RF & Advanced Electronics (<5%).

More than 1,570 new patent families were published between early April 2012 and late March 2013. They were filed by about 350 patent applicants mainly located in Japan, Korea, USA and China. The main patent applicants are Sumitomo, Toshiba, Samsung, Sharp and Mitsubishi which represent together almost 25% of the patents published the last 12 months. The academic organisms account for almost 15% of new patent filings and they are mainly located in China. The data set was segmented by type of application (Substrates, Epi-wafers, LED & Laser, Power Devices, RF & Advanced Electronics, Photovoltaics, Sensors-Detectors-MEMS). About 45% of new patent families published the last 12 months are related to LED technology. They were mainly filed by Toshiba, LG and Samsung, while Chinese companies are increasing their patent activity (Tongfang, Sanan Optoelectronics). The patents claiming an invention related to III-N Substrates and Power Devices represent 20% and 14% of new filings respectively. The patents dedicated to Substrate technology were mainly filed by Sumitomo, Hitachi and Mitsubishi, while University of California and Soitec filed 15 and 8 new patents respectively. The patents dedicated to Power Devices were mainly filed by Advanced Power Device Research Association, Samsung and Sumitomo, and the patent filings remain dominated by Japanese companies. Numerous patent applications published this year are offered for sale or for license. This year, the most relevant offers are the ones from the University of California (e.g. Ammonothermal growth technique, CAVET for High Power Application, Defect reduction of semi-polar III-N, GaN substrates, III-N tandem solar cells …).

This report also provides an Excel database of all the relevant patents KnowMade has analyzed, allowing for multi-criteria searching:

Patent information
- Patent publication number
- Hyperlink to original documents
- Oldest priority date
- Title
- Abstract
- Applicants

Technological segments
- LED
- Laser
- Power
- RF & Advanced Electronics
- Substrate
- Photovoltaic
- Sensor-Detector-MEMS
- Epi-wafer

Table Of Contents

III-Nitrides 2012-2013 Patent Landscape
Table of Contents

Terminologies for Patent Analysis

Objectives and Methodology

Executive Summary

Companies Mentioned in This Report

Patent Landscape Overview
Geographic Breakdown of Patent Filings
Main Patent Applicants
Main Inventors
Main Academic Patent Applicants
Legal Status of Patent Filings
Countries of Filings for Main Patent Applicants
Patent Applicant IP Network
Patent Applicant/Inventor IP Network
Main IPC Classes
Backward Citations Map

Technology Breakdown of Patent Filings

Light Emitting Diodes (LED)
Geographic Breakdown of Patent Filings
Main Patent Applicants
Main Inventors
Main Academic Patent Applicants
Legal Status of Patent Filings
Countries of Filings for Main Patent Applicants
Patent Applicant IP Network
Patent Applicant/Inventor IP Network
Main IPC Classes

Substrate
Geographic Breakdown of Patent Filings
Main Patent Applicants
Main Inventors
Main Academic Patent Applicants
Legal Status of Patent Filings
Countries of Filings for Main Patent Applicants
Patent Applicant IP Network
Patent Applicant/Inventor IP Network
Main IPC Classes

Power
Geographic Breakdown of Patent Filings
Main Patent Applicants
Main Inventors
Main Academic Patent Applicants
Legal Status of Patent Filings
Countries of Filings for Main Patent Applicants
Patent Applicant IP Network
Patent Applicant/Inventor IP Network
Main IPC Classes

Available Technologies



Companies Mentioned

Advanced Optoelectronic Technology (AOT), Advanced Power Device Research Association,
National Institute of Advanced Industrial Science and Technology (AIST),
Electronics and Telecommunications Research Institute (ETRI), Fujitsu, Georgia Tech Research Corp. (GTRC), Hitachi, HRL Laboratories, Chinese Academy of Sciences (CAS), International Rectifier,
Industrial Technology Research Institute (ITRI), Japan Science and Technology Agency (JST), Kaai,
Korea Advanced Institute of Science and Technology (KAIST), Korea Electronics Technology Institute (KETI),
Kyungpook National University, LG , Mitsubishi, Nanjing University, National Chiao Tung University, NGK Insulators, Nichia, Panasonic, Pohang University of Science and Technology (Postech), Ricoh, Rohm, Samsung,
Sanan Optoelectronics, Sanken Electric, Sanyo Electric, Sharp, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO-CAS), Soitec, Sony, Soraa, Sumitomo, Suzhou Synta Optical Technology, Tongfang, Toshiba, Toyoda Gosei, University of Electronic Science and Technology of China (UESTC), University of Arizona, University of California, University of Osaka, University of Shanghai, University of Sun Yat Sen,
University of Tohoku, University of Tokyo, Xidian University

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