This inventor holds 1 USPTO granted patent. Top assignee: Tokai Carbon. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Seiichi Okuyama: Inventor of a Polycrystalline Silicon Carbide Article.
Introduction
Seiichi Okuyama is an inventor based in Tokyo, Japan, associated with Tokai Carbon. His work includes a patent concerning a polycrystalline silicon carbide (SiC) molded body.
Latest Patents
Okuyama is credited with 1 patent, titled “Polycrystalline SiC Article.” The invention describes a polycrystalline SiC molded body with resistivity no greater than 0.050 Ω·cm. It also specifies a Raman-spectrum peak ratio of no more than 0.100, comparing the peak strength in the 760–780 cm⁻¹ range with the peak strength in the 790–800 cm⁻¹ range.
Career Highlights
Okuyama’s patent reflects work on the electrical and material properties of polycrystalline silicon carbide. The disclosed resistivity and Raman-spectrum criteria define characteristics of the molded body.
Collaborations
The provided information lists Yuji Ushijima and Takaomi Sugihara as Okuyama’s coworkers at Tokai Carbon.
Conclusion
Seiichi Okuyama’s recorded patent focuses on defining key electrical and spectroscopic properties of a polycrystalline SiC molded body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile