Tomokazu Kumeuchi is a renowned inventor based in Sendai, Japan. With a remarkable portfolio of six patents, Kumeuchi has made significant strides in the field of energy storage technologies, particularly focusing on lithium-ion secondary batteries. His innovative approach addresses common challenges associated with battery efficiency and safety.

Latest Patents

Kumeuchi's latest patents include groundbreaking inventions designed to enhance the performance and safety of secondary batteries. One of his notable patents describes a stacked secondary battery with a separator between electrodes, aimed at preventing electrode material shedding that can lead to short circuits during use. This invention details a unique folding method of the porous separator, improving the reliability of the battery.

Another recent patent focuses on a method for manufacturing lithium-ion secondary batteries that hold high capacity retention rates over extended periods. This patent outlines a comprehensive manufacturing process that includes pre-charging the battery before vacuum sealing its packaging, ensuring optimal functionality upon regular use. These inventions highlight Kumeuchi's dedication to improving battery technology for various applications.

Career Highlights

Kumeuchi is currently affiliated with NEC Energy Devices, Ltd., where he continues to push the boundaries of energy storage technology. His work at NEC has placed him at the forefront of innovation, allowing him to influence the development of safer and more efficient battery solutions. With his expertise, he has played a vital role in enhancing the company's contributions to the battery industry.

Collaborations

Throughout his career, Kumeuchi has collaborated with talented individuals such as Koichi Zama and Takao Daidoji. These partnerships have fostered a collaborative environment where innovative ideas can flourish, contributing to the successful development of multiple patents related to energy storage systems.

Conclusion

Tomokazu Kumeuchi's contributions to the field of lithium-ion secondary batteries are significant and impactful. As a dedicated inventor, his work not only addresses pressing issues within battery technology but also paves the way for future advancements. With a strong foundation in innovation and collaboration, Kumeuchi continues to inspire the next generation of inventors in the energy sector.

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