Akio Fujiwara

Title: Akio Fujiwara: Innovator in Combustion Control and Toner Production

Introduction

Akio Fujiwara is a notable inventor based in Yokohama, Japan. He has made significant contributions to the fields of internal combustion engine technology and electrophotographic toner production. With a total of six patents to his name, Fujiwara's work has had a lasting impact on these industries.

Latest Patents

One of Fujiwara's latest patents is the "Air fuel ratio control apparatus for an internal combustion engine." This invention includes a catalytic converter in the exhaust system to purify exhaust gases. It features a first oxygen density sensor upstream of the catalytic converter to detect the air-fuel ratio condition. Additionally, a second oxygen density sensor downstream of the converter assesses the exhaust gas after purification. The apparatus is designed to control the air-fuel ratio based on the detection results from both sensors, enhancing engine efficiency.

Another significant patent is the "Electrophotographic toner production process." This invention outlines the preparation of electrophotographic toners, which consist of resin and coloring agents. The resin used is a non-crosslinked polymer of vinyl monomers, exhibiting excellent fixing ability at high duplication speeds or lower temperatures. This innovation has improved the quality and efficiency of toner production.

Career Highlights

Fujiwara has worked with prominent companies such as Mitsui Toatsu Chemicals, Incorporated and Nippondenso Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Throughout his career, Fujiwara has collaborated with notable individuals, including Masaaki Shin and Akira Misawa. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.

Conclusion

Akio Fujiwara's contributions to combustion control and toner production exemplify his innovative spirit and technical expertise. His patents continue to influence the industries he has worked in, showcasing the importance of his work in advancing technology.