Yoshihisa Tokumaru

Title: Innovations of Yoshihisa Tokumaru

Introduction

Yoshihisa Tokumaru is a prominent inventor based in Tokushima, Japan. He has made significant contributions to the field of electrochemical devices, holding a total of nine patents. His work focuses on improving the reliability and durability of various electrochemical solutions and devices.

Latest Patents

Among his latest patents, Tokumaru has developed an electrolyte for electrochemical devices, which aims to suppress the increase in OH⁻ ion concentration during electrochemical changes. This innovation helps reduce the deterioration or corrosion of materials such as resin, rubber, or metal, thereby enhancing the reliability of electrochemical devices. Additionally, he has created a nonaqueous electrolytic solution for electric double layer capacitors, which is designed to provide excellent durability. This solution is prepared by dissolving a quaternary ammonium salt in a nonaqueous solvent, achieving an alkali metal cation concentration of 0.1 to 30 ppm.

Career Highlights

Throughout his career, Yoshihisa Tokumaru has worked with notable companies, including Otsuka Chemical Co., Ltd. and Otsuka Kagaku Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in the development of innovative electrochemical solutions.

Collaborations

Tokumaru has collaborated with esteemed colleagues such as Taiji Nakagawa and Shoji Hiketa, further enhancing his research and development efforts in the field of electrochemistry.

Conclusion

Yoshihisa Tokumaru's contributions to electrochemical devices and solutions demonstrate his commitment to innovation and reliability in technology. His patents reflect a deep understanding of the challenges in the field and a dedication to finding effective solutions.