LED Phosphors and Down-Converters Patent Investigation

  • September 2013
  • -
  • KnowMade
  • -
  • 319 pages

OBJECTIVES OF THE REPORT

This report provides a detailed picture of the patent landscape for LED phosphors and other down-converters like quantum dots.
• Understand who owns what.
• Identify key patents by composition or assignees.
• Understand trends in phosphor composition IP.
• Identify the major players in LED phosphor IP and the relative strength of their portfolio.
• Identify collaboration networks between key players (industrial and academics).
• Emerging IP from China.
• Overview of past and current litigations, licensing agreements.
• Overview of essential market data and forecast for LED Phosphors.

The report identifies the key players with the most relevant IP. It provides an overview, of phosphor related IP litigation and licensing, that has shaped the industry since the mid 90s, as well as a detailed analysis for the major players involved.

Our search strategy combines automated and manual screenings that have led to the selection of more than 4,500 relevant patent families. Those have been segmented by type (composition patent or phosphor configuration patents) and organized in various technology segments that are analyzed in detail: garnets, silicates, nitrides and oxynitrides, quantum dots. The report also includes a special focus on the emerging LED phosphor IP in China. For each segment, the report provides a detailed analysis including the time evolution of patent filings, identification of the key players, collaborations and citation networks, as well as the identification of the key patents based-on citation and impacts in litigations.
The report also includes a companion excel database with all patents of the company profiled in the report. This database includes abstracts and hyperlinks to the original documents and allows multi-criteria searches (patent publication number, priority date, title, applicants, technological segments…).

Hundreds of companies are involved in LED phosphor IP. Most of the major LED players are present in the list of the top patent assignees. But independent phosphor manufacturers like Intematix or Mitsubishi that are offering their phosphors on the open market are also emerging as major forces in the IP landscape. Leading Taiwan based packagers are notably absent from this ranking. This weak position explains the large number of litigations and one way, royalty or supply based license agreements involving those companies.

The report provides an analysis and ranking of the relative strength of the top Led phosphor IP holders derived from their portfolio size, patent citations networks, number of family etc…
Based on this portfolio analysis as well as on their litigation and licensing history, we have identified 15 major players that are profiled in this report. Each profile includes a detailed portfolio analysis with the time evolution of patent filing by segment as well as a list of key patents, citations, collaborations, litigations and licensing.

Table Of Contents

The Authors
Scope Of the Report
What’s in the Report / What’s Not
Terminology for Patent Analysis
Methodology
Search Strategy and Patent Screening
Technological Segmentation
Different Types of Phosphor Converted LED
Examples
Executive Summary

Introduction
•LED Phosphor Market Forecast
•Industry Landscape
•How Phosphor Patents Shaped the Industry
•Phosphor Related License Agreements
•Litigations Plaintiffs and Defendants
•Litigations by Patent Families
•Time Evolution of Patent Filing
•Main Patent Assignees Ranking
•Analysis
•Strength of Main Assignee Portfolio
•Portfolio Strength and Revenue
•Geographic Breakdown of Patent Filings
•Material Trends
•Nichia Patent Invalidation Attempts
•Analysis of Technology Segments (Silicates, Garnets, Nitrides, QD)
•Overview
•Main Patent Assignees
•Major Reference Patents
•China
•Conclusions

I - Overview of The LED Industry
•LED Market Segments
•History of the LED Industry
•Packaged LED Revenue Forecast by Application
•Packaged LED Volume Forecast by Application
•LED Penetration Rates - Comparison 2012 vs. 2020

II - LED Phosphor Market Overview
•Phosphors for LEDs: How to Make White Light?
•Major LED Phosphor Materials
•LED Phosphor Materials Trends
•Remote Phosphors
•LED Phosphor Industry Landscape
•Market Quantifications: Methodology
•Market Quantifications: Challenges
•Market Quantifications: Key Hypothesis
•Market Quantifications: Scenario #1: No Remote Phosphors
•Market Quantification: Remote Phosphors Hypothesis
•Market Quantification: Scenario #2: Volumes with Remote Phosphors
•Market Quantification: Revenue
•Market Quantification: Captive and Open Market

III - IP Landscape Overview
•Time Evolution of Patent Filing
•Example of Fundamental Phosphor Patents
•Geographic Breakdown of Patent Filing: Phosphor Materials
•Geographic Breakdown of Patent Filing: LED with WL Conversion
•Time Evolution by Country of Filing: Phosphor Material
•Time Evolution by Country of Publication: Phosphor Material
•Time Evolution by Country of Filing: LED with WL Conversion
•Time Evolution by Country of Publication: LED with WL Conversion
•Legal Status Breakdown
•Main IPC Classes: Phosphor Materials
•Main IPC Classed: LED with WL Conversion
•Main Patent Assignees Ranking
•Time Evolution of Top-15 Patent Assignees: Phosphor Materials
•Time Evolution of Top-15 Patent Assignees: LED with WL Conversion
•Country of Filing for Top-15 Patent Assignees: Phosphor Materials
•Country of Filing for Top-15 Patent Assignees: LED with WL Conversion
•Main Academic Patent Assignees
•Patent Assignee IP Network: Phosphor Materials
•Patent Assignee Network: LED with WL Conversion
•Summary of Main Assignee Portfolio: Phosphor Materials
•Summary of Main Assignee Portfolio: LED with WL Conversion
•Summary of Main Assignee Portfolio: Analysis
•Strength of Main Assignee Portfolio: Phosphor Materials
•Strength of Main Assignee Portfolio: LED with WL Conversion
•Strength of Main Assignee Portfolio: Analysis
•Portfolio Strength and Revenue

IV - Analysis of Technology Segments
•Matrix Applicants/Phosphor Composition
•Discussion

Garnets
•Overview
•Composition and IP
•Time Evolution of Patent Filings
•Main Patent Assignees
•Other Garnets
•Time Evolution of Patent Assignees
•Countries of Filing for Main Patent Assignees
•Patent Assignee IP Network
•Assignee Citation Network
•Main Cited Patents
•Major Reference Patents

Silicates
•Overview
•Time Evolution of Patent Filings
•Main Patent Assignees
•Other Silicates
•Time Evolution of Main Patent Assignees
•Country of Filing for Main Patent Assignees
•Patent Assignee Network
•Assignee Citation Network
•Most Cited Patents
•Major Reference Patents
•Litigations and Licensing Landscape

Nitrides and Oxynitrides
•History and IP Overview
•Main Players
•Examples
•Time Evolution of Patent Filings
•Main Patent Assignees
•Time Evolution of Main Patent Assignees: Nitrides
•Time Evolution of Patent Assignees: Oxynitrides
•Countries of Filing for Main Patent Assignees: Nitrides
•Countries of Filing For Main Patent Assignees: Oxynitrides
•Patent Assignee Network: Nitrides
•Patent Assignee IP Network: Oxynitrides
•Assignee Citation Network: Nitrides
•Assignee Citation Network: Oxynitrides
•Most Cited Patents: Nitrides
•Most Cited Patents: Oxynitrides
•Major Reference Patents
•Carbidonitrides

Quantum Dots
•Introduction
•Quantum Dots for Display Applications
•IP Overview
•Time Evolution of Patent Filings
•Main Patent Assignees
•Time Evolution of Main Patent Assignees
•Countries of Filing for Main Patent Assignees
•Patent Assignee Network
•Assignee Citation Network
•Most Cited Patents
•Major Reference Patents
•Litigations and Licensing Landscape

Remote Phosphors
•Introduction
•Remote Phosphors IP Overview
•Patent Screening
•Time Evolution of Patent Filing
•Main Patent Assignees
•Time Evolution of Main Patent Assignees
•Country of filing for Main Patent Assignees
•Patent Assignee IP Network
•Assignee Citation Index
•Most Cited Patents
•Major Reference Patents

V - Focus On China
•Overview
•Main Patent Assignees
•Main Patent Assignees: Patent portfolio comparison
•Other Patent Assignees
•Patent Assignee IP Network

VI - Litigation and Licensing Landscape
•Overview and History
•Chronology
•Overview of Phosphor Related License Agreements
•Main litigations Plaintiffs and Defendants
•Litigation by Patent Families
•Patent Families Involved in Litigation by Priority Date
•Consequences
•Counterfeit Phosphors

VII - Focus On Key Players
CREE
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

Denka (Denki Kagaku Kogyo Kabushiki Kaisha)
•Portfolio Analysis
•Key Patents, Citations and Collaborations

General Electric / Gelcore (Lumination) / GE Lighting
•Portfolio Analysis
•Key Patents, Citations and Collaborations

Intematix
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

LG
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

Mitsubishi (Mitsubishi Cable + Mitsubishi Chemical)
•Portfolio Analysis
•Key Patents, Citations and Collaborations

Nichia
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses
•Invalidation Attempts
•Nichia’s Approach to IP
•IP Revenues

NIMS (National Institute for Materials Science)
•Portfolio Analysis
•Key Patents, Citations and Collaborations

OSRAM
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

Philips
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

Samsung (Samsung Led - Samsung Electro Mechanics - Samsung Electronics)
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

Seoul Semiconductor
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

Toyoda Gosei
•Portfolio Analysis
•Key Patents, Citations and Collaborations
•Litigations and Licenses

Others: Toshiba, Sharp, Panasonic, Sumitom
•Portfolio Analysis

Annexes: Focus on Inventor Prof. Dr. rer. nat. Thomas Jüstel
•Time Evolution of Patent Filings
•Collaboration Network and Composition Segmentation

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