Company Filing History:
Years Active: 1999-2000
Title: Takafumi Yokoyama: Innovator in Organosilica Technology
Introduction
Takafumi Yokoyama is a notable inventor based in Funabashi, Japan. He has made significant contributions to the field of organosilica technology, holding a total of 2 patents. His work focuses on innovative processes for producing hydrophobic organosilica sols, which have various applications in industry.
Latest Patents
Yokoyama's latest patents include a process for producing a hydrophobic organosilica sol. This process involves aging a reaction mixture at temperatures ranging from 0 to 100 degrees Celsius while managing the alkali content. The resulting product is a silylation-treated silica sol with hydrophobic colloidal silica. Another significant patent is for a method of preparing a propanol sol of silica. This sol has a specific surface area of 25 to 550 m²/g and a SiO₂ concentration of 10 to 50% by weight. The innovative process replaces the aqueous medium in an acidic aqueous sol of silica with propanol, enhancing the sol's properties.
Career Highlights
Yokoyama is currently employed at Nissan Chemical Industries Limited, where he continues to develop and refine his innovative processes. His work has contributed to advancements in materials science, particularly in the production of specialized silica products.
Collaborations
Some of his notable coworkers include Keiko Tasaki and Yasuyoshi Hamada. Their collaborative efforts have furthered research and development in the field of organosilica technology.
Conclusion
Takafumi Yokoyama's contributions to organosilica technology through his patents and work at Nissan Chemical Industries Limited highlight his role as an influential inventor in this specialized field. His innovative processes are paving the way for new applications and advancements in materials science.