Summary
This report was prepared by MarkLines based on patent information from the "Technical Information Distribution Service - swimy" provided by Toyota Technical Development Corporation (TTDC), and reports on recent technology topics surrounding the auto industry. The two business areas of TTDC are intellectual property (IP) and measurement control solutions. The IP side of TTDC is involved in the collection and analysis of information on automotive technology developments globally, and provides services such as consulting for research planning, applying for patents in foreign languages, and technical translation.
The development of wireless charging is progressing in countries around the world, and it is expected that with this technology electric vehicles will become even more widespread. Therefore, this report will present the technology trends of this technical area and development items that are being developed based on patent information on wireless charging technology for electric vehicles.
The number of patent applications was increasing from 2020 to 2021, but a downward trend is seen in 2022. By technology field, stationary wireless charging is the most common, but there are also many patent applications for wireless charging while driving. Development items include high-precision position control and power supply systems that respond to abnormalities, contactless power supply and vehicle management systems, and heat generation countermeasure technology for wireless charging devices.
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TTDC Related Reports:
Hyundai Motor Group’s Communication Technology (Nov. 2024)
BYD's Electric Vehicle Development Trends (Sep. 2024)
Trends in Collaborative Development of All-Solid-State Batteries (Aug. 2024)
Xiaomi's Automotive Technology Development Trends (Jul. 2024)
Trend Survey of Vehicle Seat Materials (Feb. 2024)
Local Reconstruction Note
This article has been expanded from the visible local mirror text, headings, tags, image captions, tables, and related local article titles. It is presented as a reconstructed reading version, not as a hidden original document.
High-precision position control and power supply system for handling abnormalities (Toyota, Denso)
The source outline identifies this section as part of “Trends in Wireless Charging Technology for Electric Vehicles”. Based on the available local metadata, this section should be read through the lens of Wireless Charging, Japanese Suppliers, TTDC patent trends, Technology Show, Charging Infrastructure, Toyota and the visible introduction, figures, captions, and tables.
Power Supply Apparatus and Power Supply Method (Toyota, Denso)
The source outline identifies this section as part of “Trends in Wireless Charging Technology for Electric Vehicles”. Based on the available local metadata, this section should be read through the lens of Wireless Charging, Japanese Suppliers, TTDC patent trends, Technology Show, Charging Infrastructure, Toyota and the visible introduction, figures, captions, and tables.
Wireless Charging Device and Transportation Means Comprising Same (SKC Corporation)
The source outline identifies this section as part of “Trends in Wireless Charging Technology for Electric Vehicles”. Based on the available local metadata, this section should be read through the lens of Wireless Charging, Japanese Suppliers, TTDC patent trends, Technology Show, Charging Infrastructure, Toyota and the visible introduction, figures, captions, and tables.
Evolution of Contactless Automotive Power Supply Systems (Denso, University of Tokyo, et al.)
The source outline identifies this section as part of “Trends in Wireless Charging Technology for Electric Vehicles”. Based on the available local metadata, this section should be read through the lens of Wireless Charging, Japanese Suppliers, TTDC patent trends, Technology Show, Charging Infrastructure, Toyota and the visible introduction, figures, captions, and tables.
Vehicle Control Technology for Contactless Road Power Supply Systems (Denso Corporation, The University of Tokyo, Bridgestone Corporation, Toyota Motor Corporation)
The source outline identifies this section as part of “Trends in Wireless Charging Technology for Electric Vehicles”. Based on the available local metadata, this section should be read through the lens of Wireless Charging, Japanese Suppliers, TTDC patent trends, Technology Show, Charging Infrastructure, Toyota and the visible introduction, figures, captions, and tables.
Related Local Signals
Nearby records in the local archive include Taipei AMPA 2026: Foxconn’s EV Technology; Smart Energy Week 2026: Batteries and Charging; Electrified Vehicle (xEV) Sales Monthly Report (March 2026); Geely i-HEV Intelligent Hybrid Technology Presentation. These titles can be used as adjacent evidence when comparing suppliers, technologies, markets, and reporting periods.