Yoshinobu Ishikawa

Title: Innovations of Yoshinobu Ishikawa

Introduction

Yoshinobu Ishikawa is a notable inventor based in Wakayama, Japan. He has made significant contributions to the fields of battery technology and electrophotography. With a total of 9 patents to his name, his work has had a considerable impact on modern technology.

Latest Patents

One of his latest patents is a process for producing positive electrode active material particles for batteries. This process involves creating a slurry that includes resin particles, a cationic surfactant, lithium complex oxide particles, and a polar solvent. The method includes removing the polar solvent and firing the composition while eliminating the resin particles. The cationic surfactant used is a quaternary ammonium salt, and the resin particles have an average size ranging from 0.1 to 20 micrometers.

Another significant patent is for a process of preparing toner for electrophotography. This process focuses on creating fine particles of a resin binder in an aqueous medium with a nonionic surfactant. The toner produced has a volume-median particle size ranging from 1 to 7 micrometers and contains 60% or more of a crystalline polyester. This toner is particularly useful in various electrostatic printing methods.

Career Highlights

Throughout his career, Yoshinobu Ishikawa has worked with prominent companies such as Kao Corporation and Toyo Ink Manufacturing Company. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects.

Collaborations

Yoshinobu has collaborated with notable individuals in his field, including Shinichi Sata and Nobumichi Kamiyoshi. These collaborations have further enhanced his work and led to advancements in technology.

Conclusion

Yoshinobu Ishikawa's contributions to battery technology and electrophotography demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving existing processes and creating new solutions.