Yoshinobu Okumura

Title: The Innovations of Yoshinobu Okumura

Introduction

Yoshinobu Okumura is a prominent inventor based in Sumoto, Japan. He has made significant contributions to the field of battery technology, particularly in the development of nonaqueous secondary batteries. With a total of 5 patents to his name, Okumura's work has been instrumental in enhancing the safety and efficiency of battery systems.

Latest Patents

One of Okumura's latest patents involves a nonaqueous secondary battery that features an active material compound layer deposited over at least one face of a metal foil collector. This innovative design includes a positive electrode with an exposed metal portion that faces a negative electrode through an interposed separator. The protective layer formed on the exposed-metal portion is made of a material with lower electronic conductivity than the metal, which prevents abnormal heat generation in case of a short circuit. This design allows for gentle discharge and enables the detection of battery abnormalities through voltage drops.

Another significant patent focuses on a non-aqueous electrolyte secondary battery that prevents internal short circuits caused by electrically conductive micro particles. This battery is designed with a coiled electrode assembly and employs various manufacturing methods to ensure safety and reliability. The insulating layer on the positive electrode's metallic collector is crucial in preventing contact with the negative electrode, thereby enhancing the overall performance of the battery.

Career Highlights

Yoshinobu Okumura is currently associated with Sanyo Electric Co., Ltd., where he continues to innovate in the field of battery technology. His work has garnered attention for its practical applications and contributions to energy storage solutions.

Collaborations

Okumura has collaborated with notable colleagues such as Hitoshi Tanaka and Takashi Oda, further enriching the research and development efforts in his field.

Conclusion

Yoshinobu Okumura's contributions to battery technology exemplify the importance of innovation in creating safer and more efficient energy solutions. His patents reflect a commitment to advancing technology for the betterment of society.