Company Filing History:
1 out of 817 
1 out of 2 Years Active: 1976
Title: The Innovative Contributions of Yoshio Fujiwara
Introduction
Yoshio Fujiwara is a notable inventor based in Narashino, Japan. He is recognized for his innovative work in the field of filtration technology. His contributions have significantly impacted the efficiency of filtration processes.
Latest Patents
Fujiwara holds a patent for a filter medium that permits an increased amount of filtration. This filter medium is prepared by blending 100 parts by weight of aggregate particles with 5-18 parts by weight of an inorganic bonding material. The bonding material has a chemical composition of approximately 10-50% by weight of SiO₂ and about 5-20% by weight of B₂O₃. It contains at least 70% by weight of a non-vitreous substance, such as talc or boric acid, along with 3-15 parts by weight of a combustible substance like wheat flour. The process involves kneading the mixture with a caking material and water, molding it, drying it, and then calcining the dried mixture at a temperature not lower than about 1100°C. The size and number of air-permeable pores in the filter medium can be controlled by adjusting the amounts of the bonding material and combustible substance.
Career Highlights
Throughout his career, Fujiwara has worked with prominent companies, including Mitsui Mining & Smelting Company, Ltd. and Tokyo Kokyu Rozai Co., Ltd. His experience in these organizations has contributed to his expertise in filtration technologies.
Collaborations
Fujiwara has collaborated with notable individuals in his field, including Hiroshi Uchiyama and Kazunobu Kakimoto. These collaborations have further enhanced his innovative capabilities and contributions to the industry.
Conclusion
Yoshio Fujiwara's work in developing advanced filtration mediums showcases his inventive spirit and dedication to improving filtration technology. His patent and collaborations reflect his significant contributions to the field.