Company Filing History:
4 out of 988 
4 out of 31 Years Active: 2016-2019
Title: The Innovative Mind of Yasumitsu Tanaka
Introduction
Yasumitsu Tanaka, an accomplished inventor located in Miyagi, Japan, has made significant strides in the field of lithium-ion battery technology. With a total of four patents to his name, Tanaka's work focuses on improving the performance and efficiency of negative electrode materials in lithium-ion secondary batteries.
Latest Patents
Tanaka's most recent patents include a novel method for producing negative electrode active materials for lithium-ion secondary batteries. This method involves charging either silicon with copper (II) oxide or copper metal in a pulverization device. The process not only pulverizes the mixture but also simultaneously mixes it, resulting in a high-quality negative electrode active material. His other patent highlights the characteristics of this material, which comprises silicon, copper, and oxygen, with fine silicon particles measuring 50 nm or less in average crystallite diameter. The elemental ratios are meticulously defined, emphasizing the presence of an intermetallic compound formed between silicon and copper, which enhances the battery's performance.
Career Highlights
Throughout his career, Yasumitsu Tanaka has been associated with notable organizations, including Tohoku University and Dowa Holdings Co., Ltd. His work at these institutions has been crucial in advancing research in battery technology and developing innovative materials that meet the growing demands of energy storage solutions.
Collaborations
Tanaka has collaborated with esteemed colleagues, such as Norihiro Shimoi and Kazuyuki Tohji. These partnerships have facilitated a collaborative approach to research, combining their expertise to push forward advancements in lithium-ion battery technology and enhance the performance of energy storage systems.
Conclusion
Yasumitsu Tanaka stands out as a significant figure in the realm of battery invention, with his innovative techniques and collaborative spirit paving the way for enhanced lithium-ion battery materials. His patents showcase a commitment to improving energy storage solutions, reflecting the evolving landscape of technology and innovation in this crucial field.