This inventor holds 23 USPTO granted patents and 10 published patent applications and 1 EPO patent, primarily in Secondary Battery Technology. Top assignees: Murata Manufacturing Co., Ltd., Sumitomo Heavy Industries, Ltd., Sony Corporation. Active years: 2015-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Fukushima, JP (2015 - 2020)
- Tokyo, JP (2016 - 2024)
- Kyoto, JP (2020 - 2024)
Company Filing History:
14 out of 13,796 
5 out of 1,250 
3 out of 58,145 
Years Active: 2015-2025
Areas of Expertise:
Title: Takaaki Matsui – Innovator in Secondary Battery Technology
Introduction
Takaaki Matsui is a notable inventor hailing from Fukushima, Japan, recognized for his significant contributions to the field of battery technology. With an impressive portfolio of 21 patents, Matsui has demonstrated a commitment to advancing innovations that enhance energy storage solutions.
Latest Patents
Among Matsui's latest inventions is a groundbreaking secondary battery design, which features a positive electrode composed of a lithium-cobalt composite oxide. This composite oxide is characterized by its layered rock-salt crystal structure, providing an efficient electrochemical performance. Additionally, the secondary battery includes a negative electrode made from graphite, optimizing the charging and discharging capabilities, particularly at upper circuit voltages exceeding 4.42 V. For the unit capacity, significant performance metrics are defined, ensuring a balance between efficiency and effectiveness. Another significant patent involves a unique wound electrode body that integrates a positive electrode, a negative electrode, and a separator, enhancing the structural integrity and performance efficiency of the battery.
Career Highlights
Throughout his career, Takaaki Matsui has been affiliated with reputable companies, including Murata Manufacturing Co., Ltd. and Sumitomo Heavy Industries, Ltd. His work at these organizations has played a pivotal role in shaping the advancements in secondary battery technologies, contributing to the burgeoning field of electric vehicles and energy storage systems.
Collaborations
Collaborative efforts have been integral to Matsui's success. Notable colleagues include Taichi Kogure and Kazuki Honda, who have worked alongside him in developing innovative solutions that push the boundaries of current battery technologies.
Conclusion
Takaaki Matsui stands out as a leading figure in battery innovation, with a strong collection of patents that reflect his expertise and vision for the future of energy storage. His contributions are crucial not only to the advancement of electric power tools and vehicles but also to broader applications in electronic apparatuses and power storage systems. As the world moves toward sustainable energy solutions, Matsui's innovations will undoubtedly play a vital role in shaping the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile