Naoko Yamakawa

Title: Naoko Yamakawa: Innovator in Secondary Battery Technology

Introduction

Naoko Yamakawa is a prominent inventor based in Kyoto, Japan. She has made significant contributions to the field of secondary battery technology, holding a total of five patents. Her innovative work focuses on enhancing the performance and efficiency of batteries, which are crucial for various applications in modern technology.

Latest Patents

Yamakawa's latest patents include advancements in secondary battery design. One of her patents describes a secondary battery that features a positive electrode made from a lithium-cobalt composite oxide with a layered rock-salt crystal structure. The negative electrode consists of graphite. This design allows the battery to operate effectively with a closed circuit voltage of 4.42 V or higher, ensuring a unit capacity that meets specific performance criteria. Another patent outlines a similar secondary battery configuration, emphasizing the importance of the open circuit potential of the negative electrode and its performance during discharge cycles.

Career Highlights

Throughout her career, Naoko Yamakawa has worked with notable companies, including Murata Manufacturing Co., Ltd. Her experience in these organizations has allowed her to refine her expertise in battery technology and contribute to the development of innovative solutions in the field.

Collaborations

Yamakawa has collaborated with talented individuals such as Takaaki Matsui and Taichi Kogure. These partnerships have fostered a creative environment that has led to the successful development of her patented technologies.

Conclusion

Naoko Yamakawa's contributions to secondary battery technology highlight her role as an influential inventor in the field. Her innovative patents and collaborations demonstrate her commitment to advancing battery performance and efficiency.