This inventor holds 2 USPTO granted patents. Top assignees: Central Glass Company, Limited, Koken Company, Limited, Moritex Corporation. Active years: 1983-1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 1,011 
1 out of 54 
1 out of 41 Years Active: 1983-1994
Title: Yasuji Nakaso: Innovator in Deproteinization and Alkali Monofluorophosphate Technologies
Introduction
Yasuji Nakaso is a notable inventor based in Ube, Japan. He has made significant contributions to the fields of materials science and chemistry, holding a total of 2 patents. His innovative work focuses on the development of specialized fillers and chemical processes.
Latest Patents
One of Nakaso's latest patents is for a deproteinization filler and cartridge containing the same. This filler comprises an aggregate of hydroxyapatite fibers that form a three-dimensional network structure. The mean radius of the pores defined by the aggregate ranges from approximately 0.02 µm to 0.08 µm, with a specific surface area of about 25 m²/g to 65 m²/g. The mean diameter of the particles in the aggregate is between approximately 1 µm and 30 µm. This filler can be produced through a specific method and may be contained in a throwaway cartridge.
Another significant patent by Nakaso is the process of preparing alkali monofluorophosphate. This compound, expressed by the formula M₂PO₃F, where M represents sodium (Na) or potassium (K), can be synthesized under relatively mild reaction conditions. The process involves making HF gas contact with powdery or fine granular M₄P₂O₇ or M₂HPO₄ in a reaction vessel maintained at temperatures ranging from about 200°C to 450°C. The method is designed to ensure that HF gas continuously flows into the reaction vessel until the total quantity of HF amounts to 100% to 150% of the theoretical value for conversion.
Career Highlights
Throughout his career, Yasuji Nakaso has worked with prominent companies, including Central Glass Company, Limited and Moritex Corporation. His experience in these organizations has contributed to his expertise in developing innovative materials and chemical processes.
Collaborations
Some of Nakaso's notable coworkers include Keiko Gondo and Hiroshi Iwase. Their collaborative efforts have likely played a role in advancing the projects they have worked on together.
Conclusion
Yasuji Nakaso is a distinguished inventor whose work in deproteinization fillers and alkali monofluorophosphate processes showcases his innovative spirit. His contributions to
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile