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Wireless Electric Vehicle Charging Apr, 2020 SAMPLE LANDSCAPE STUDY WIRELESS ELECTRIC VEHICLE CHARGING APR, 2020 COPY RIGHT ©2020 IIPRD. ALL RIGHTS RESERVED TABLE OF CONTENTS 1. WIRELESS CHARGING ______________________________________________________________ 3 2. OBJECTIVES ______________________________________________________________________ 9 3. SEARCH METHODOLOGY ___________________________________________________________ 9 4. SUMMARY _____________________________________________________________________ 10 5. NON-TECHNICAL ANALYSIS ________________________________________________________ 11 5.1 PRIORITY, FILING, PUBLICATION YEAR BASED TREND ANALYSIS _________________________ 11 5.1.1 ANALYSIS BASED ON REPRESENTATIVE MEMBER PER INPADOC FAMILY ______________ 11 5.2 ASSIGNEE BASED TREND ANALYSIS _______________________________________________ 12 5.2.1 MAJOR ASSIGNEES – COMPANIES (BASED ON REPRESENTATIVE MEMBER PER FAMILY) __ 12 5.2.2 MAJOR ASSIGNEES – UNIVERSITIES & RESEARCH INSTITUTES (BASED ON REPRESENTATIVE MEMBER PER FAMILY) ____________________________________________________________ 13 5.3 KEY INVENTORS _______________________________________________________________ 14 5.4 GEOGRAPHY BASED TREND ANALYSIS _____________________________________________ 15 5.5 INTERNATIONAL PATENT CLASSIFICATION BASED TREND ______________________________ 17 5.6 INTERNATIONAL PATENT SUB-CLASSIFICATION BASED TREND __________________________ 18 6. TECHNICAL ANALYSIS _____________________________________________________________ 19 6.1 TAXONOMY DEVELOPED FOR BUCKETING OF RELEVANT PATENT DOCUMENTS ____________ 19 6.2 DISTRIBUTION OF PATENTS/APPLICATIONS PERTAINING TO EV- WIRELESS CHARGING _______ 20 6.3 TECHNOLOGY DISTRIBUTION V FILING DATE ________________________________________ 25 6.4 TECHNOLOGY DISTRIBUTION V MAJOR ASSIGNEE (COMPANIES) ________________________ 26 6.5 TECHNOLOGY DISTRIBUTION V MAJOR ASSIGNEE (UNIVERSITIES & RESEARCH INSTITUTES) __ 27 6.6 KEY PATENTS _________________________________________________________________ 28 7. PATENT PORTFOLIO ANALYSIS ______________________________________________________ 31 8. THE FUTURE ____________________________________________________________________ 34 9. CONCLUSION ___________________________________________________________________ 36 APPENDIX- A ______________________________________________________________________ 37 APPENDIX- B ______________________________________________________________________ 39 APPENDIX- C ______________________________________________________________________ 41 DISCLAIMER ______________________________________________________________________ 42 About IIPRD ______________________________________________________________________ 43 Patent Searching | Research and Analytics | Patent Filing | Prosecution | Litigation and E-Discovery | IP Valuation 2 | Patent Portfolio | Landscape 1. WIRELESS CHARGING WHAT IS WIRELESS CHARGING? “Wireless charging" is the process of electrically charging battery-powered devices and equipment without the need for a wired electrical power connection. It enables the wireless transfer of electrical charge from a charging device or node to the recipient device. Wireless charging can be of different types: Inductive Charging • Uses EM waves to transfer energy and charge devices wirelessly. Inductive charging requires the device to be placed on a conductive charging pad/ equipment, which is directly connected to a wall socket. It is mainly used to charge small hand-held devices such as, smartphones, PDAs and mobile phones. Radio Charging • Similar to inductive charging, radio charging use wireless radio waves to transfer energy to small devices and equipment. The device is placed on a radio wave emitting transmitter that transmits radio waves to charge the device. Resonance Charging • Used for charging large devices and equipment such as laptops, robots, cars and more. It consists of a sending (sender) copper coil and a receiving (receiver) copper coil at the device end. The sender and receiver must configure the same electronic magnetic frequency to transfer electrical energy. Patent Searching | Research and Analytics | Patent Filing | Prosecution | Litigation and E-Discovery | IP Valuation 3 | Patent Portfolio | Landscape MARKET GROWTH The global wireless charging market size was valued at $5.22 billion in 2017, and is projected to reach $71.21 billion by 2025, registering a CAGR of 38.7% from 2018 to 2025. Top Impacting Factors Continuous growth in Frequent need of Increased sale of EV's Portable electronics and harvesting ambient RF wearables market energy Samsung Electronics Co., Ltd. Qualcomm Incorporated. Texas Instruments, Inc. Integrated Device Technology, Inc. Key Investors in the Powermat Technologies Ltd. technology domain WiTricity Corporation. Energizer Holdings, Inc. Murata Manufacturing Co. Ltd. Sony Corporation. Fulton Innovation LLC. Patent Searching | Research and Analytics | Patent Filing | Prosecution | Litigation and E-Discovery | IP Valuation 4 | Patent Portfolio | Landscape TECHNICAL STANDARDS Huawei, LG Electronics, Motorola Mobility, Nokia, Samsung, BlackBerry, In order to provide interoperability, a Xiaomi, and Sony. key requirement for wireless charging, it was necessary to develop a standard AirFuel Alliance: that could be adopted by the major In January 2012, the IEEE announced manufacturers. Standards refer to the the initiation of the Power Matters different set of operating systems with Alliance (PMA) under the IEEE Standards which devices are compatible[3][4]. Association (IEEE-SA) Industry Connections. The alliance is formed to Small Personal Electronics - Wireless publish set of standards for inductive Charging Standards power that are safe and energy There are two main standards: Qi and efficient, and possess smart power PMA. Both operate in a similar fashion management. The PMA will also focus but are using different transmission on the creation of an inductive power frequencies and connection protocols. ecosystem[4]. Consequently, devices compatible with one standard are not necessarily EV- Wireless Charging Standards compatible with the other standard. Wireless charging helps EV’s to charge However, there are devices compatible without any need of plug in. In order to with both standards. make wireless EV charging more Qi- is an open interface standard that effective and user friendly several defines wireless power transfer using international organizations like inductive charging over distances of up International Electro Technical to 4 cm (1.6 inches), developed by the Commission (IEC), the Society of Wireless Power Consortium. The system Automotive Engineers (SAE), uses a charging pad and a compatible Underwriters Laboratories (UL), Institute device, which is placed on top of the of Electrical and Electronics Engineers pad, charging via resonant inductive (IEEE) are working on this standard, coupling. Mobile device manufacturers among other standards. that are working with this standard include Apple, Asus, Google, HTC, Patent Searching | Research and Analytics | Patent Filing | Prosecution | Litigation and E-Discovery | IP Valuation 5 | Patent Portfolio | Landscape SAE J2954 defines WPT for Light-Duty IEC 62827-2 Ed.1.0 defines WPT- Plug-In EVs and Alignment Methodology. Management: Multiple Device Control According to this standard, level 1 offers Management. maximum input power of 3.7 KW, level 2 IEC 63028 Ed.1.0 defines WPT-Air Fuel offers 7.7 KW, level 3 offers 11 KW and Alliance Resonant Baseline System level 4 offers 22 KW. The minimum target Specification[5]. efficiency must be greater than 85% when aligned. Allowable ground EV- WIRELESS CHARGING clearance should be upto 10 inches and How it works: Instead of using a plug-in side to side tolerance is upto 4 inches. cable to charge the Electric Vehicle The most preferable alignment method (EV), Wireless Electric Vehicle Charging is magnetic triangulation that assists to (WEVC) technology uses the principle of stay within charge range in manual magnetic induction to wirelessly charge parking and assists to find parking spots the vehicle’s battery. Power is for autonomous vehicles. transferred between a Base Charging SAE J1772 standard defines EV/PHEV Unit (BCU) installed either on or below Conductive Charge Coupler. the paved surface of the charging bay SAE J2847/6 standard defines and a Vehicle Charging Unit (VCU) Communication Between Wireless which is fitted to the underside of the Charged Vehicles and Wireless EV vehicle. A magnetic “Flux Pipe” couples Chargers. power between the BCU and VCU SAE J1773 standard defines EV charging pads and energy is wirelessly Inductively Coupled Charging. transferred between the two units to SAE J2836/6 standard defines Use Cases charge the EV battery[6]. for Wireless Charging Communication for PEV. Based on the application, Wireless UL subject 2750 defines Outline of charging systems for EV can be Investigation, for WEVCS. distinguished into two categories: [5][7] IEC 61980-1 Cor.1 Ed.1.0 defines EV WPT 1. Static Wireless Charging Systems General Requirements. 2. Dynamic Wireless Charging Patent Searching | Research and Analytics | Patent Filing | Prosecution | Litigation and E-Discovery | IP Valuation 6 | Patent Portfolio | Landscape Static Wireless Charging Dynamic Wireless Charging System (DWCS): As the name indicates, the vehicle gets charged when it remains static. One As the name indicates, vehicle get can simply park the EV at the parking charged while its in motion. The power spot or in garage which is incorporated transfers over the air
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