Introduction: Kazutoshi Fujioka, an accomplished inventor based in Annaka, Japan, has made significant contributions to the field of chemical engineering, particularly in silanes and related compounds. With a remarkable portfolio of 21 patents, his work reflects innovation and dedication to advancing technology in the industry.

Latest Patents: Among his latest patents are two noteworthy inventions:

1. **Silicon oxide containing active silicon and its evaluation** - This invention involves silicon oxide represented by the general formula SiOx, where x is between 0.8 and 1.9. It highlights a unique analysis by solid state NMR (29Si DD/MAS), revealing a spectrum with two distinct peaks that provide valuable insights into its structure and properties.

2. **Process for preparing organohalosilanes** - This patent details a novel method of synthesizing organohalosilanes through a reaction of metallic silicon with halogenated hydrocarbons, enhanced by a copper or copper compound catalyst. The process, conducted at temperatures ranging from 250 to 400°C, optimizes activation time and improves the selectivity of diorganodihalosilanes, demonstrating enhanced reaction performance.

Career Highlights: Kazutoshi Fujioka is currently associated with Shin-Etsu Chemical Co., Ltd., a leader in the chemical industry. His work there has been pivotal, focusing on creating efficient processes that not only advance scientific understanding but also enhance practical applications in various fields.

Collaborations: Throughout his career, Fujioka has collaborated with esteemed colleagues including Masatoshi Arai and Mikio Aramata. These partnerships have fostered a productive environment for innovation, allowing for the exchange of ideas and the development of groundbreaking technologies.

Conclusion: Kazutoshi Fujioka exemplifies the spirit of innovation as both an inventor and a collaborator in the chemical engineering field. His patents reflect not only his expertise but also a commitment to pushing the boundaries of technology. As he continues his work at Shin-Etsu Chemical Co., Ltd., the impact of his inventions is likely to resonate throughout the industry for years to come.

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