Kazuhiro Yoshii

Title: Kazuhiro Yoshii: Innovator in Lithium-Ion Battery Technology

Introduction

Kazuhiro Yoshii is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of lithium-ion battery technology, holding a total of 8 patents. His innovative work focuses on enhancing the performance and efficiency of batteries, which are crucial for modern electronic devices and electric vehicles.

Latest Patents

Yoshii's latest patents include a negative electrode for lithium-ion secondary batteries and a lithium-ion secondary battery itself. The negative electrode features a current collector and a mixture layer that consists of two distinct layers. The second layer contains graphite particles A with a particle internal porosity of at most 10%, while the first layer includes graphite particles B with a porosity of more than 10%. Additionally, the second layer has a water contact angle of at most 50°. The secondary battery comprises an electrode body that includes a positive electrode, a negative electrode, and a separator. The positive electrode is designed with a core and a mixture layer that contains secondary particles aggregated from primary particles, ensuring a packing density of 3.2 g/cm³ or greater.

Career Highlights

Throughout his career, Kazuhiro Yoshii has worked with notable companies such as Panasonic Intellectual Property Management Co., Ltd. and Lintec Corporation. His experience in these organizations has allowed him to refine his expertise in battery technology and intellectual property management.

Collaborations

Yoshii has collaborated with talented individuals in his field, including Tomoki Shiozaki and Hajime Nishino. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Kazuhiro Yoshii stands out as a key figure in the development of lithium-ion battery technology. His patents and collaborations reflect his commitment to innovation and excellence in this vital industry.