Yuyu Ohnuma

Title: Yuyu Ohnuma: Innovator in Battery Technology

Introduction

Yuyu Ohnuma is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of battery technology, holding a total of four patents. His work focuses on developing nonaqueous electrolyte solutions and secondary batteries that enhance performance and longevity.

Latest Patents

Ohnuma's latest patents include a nonaqueous electrolyte solution for batteries and a nonaqueous electrolyte secondary battery utilizing this solution. The nonaqueous electrolyte solution is designed to maintain low internal resistance and high electrical capacitance over extended use. It employs a crystalline carbon material with high crystallinity as an active material and utilizes a polymeric carboxylic compound as a binding agent for the negative electrode. The solution comprises various components, including unsaturated phosphate ester compounds, sulfite ester compounds, and an organic solvent, among others. The secondary battery features a negative electrode made of graphite particles and a positive electrode containing lithium-based materials, ensuring efficient energy storage and transfer.

Career Highlights

Throughout his career, Yuyu Ohnuma has worked with notable companies such as Adeka Corporation and Denso Corporation. His experience in these organizations has contributed to his expertise in battery technology and innovation.

Collaborations

Ohnuma has collaborated with talented individuals in his field, including Takayuki Taki and Hiroaki Watanabe. These partnerships have fostered a collaborative environment that encourages innovation and the development of advanced technologies.

Conclusion

Yuyu Ohnuma's contributions to battery technology through his innovative patents and collaborations highlight his role as a key figure in the industry. His work continues to influence the development of efficient energy storage solutions.