Company Filing History:
2 out of 405 
1 out of 1,960 
1 out of 832,891 Years Active: 2002-2004
Title: Masashi Shigeto: Innovator in Silicon Carbide Technology
Introduction
Masashi Shigeto, an accomplished inventor based in Chiba, Japan, has made significant contributions to the field of semiconductor materials, particularly in the production of silicon carbide single crystals. With a total of four patents to his name, Shigeto's inventions address technological challenges in the manufacturing processes of advanced materials.
Latest Patents
Shigeto's most recent patents include a "Method and apparatus for producing silicon carbide single crystal." This invention outlines a process where silicon raw material continuously reacts with carbon raw material, generating gas that facilitates the growth of silicon carbide single crystals on a seed crystal substrate. The apparatus features a reaction crucible and mechanisms to maintain optimal temperatures, allowing for efficient production.
Another notable patent is the "Apparatus and method for cutting ingots." In this innovative approach, a thin strip-shaped grindstone is held under tension and moves back and forth to cut cylindrical ingots effectively. Utilizing a metal-bonded grindstone and an electrolytic dressing process, this method significantly reduces cutting waste and improves the finish of the cut surfaces, showcasing its efficiency in handling large diameter, hard, refractory ingots.
Career Highlights
Masashi Shigeto has held key positions in prominent companies like Showa Denko K.K., where he effectuated enhancements in semiconductor materials and manufacturing processes. His innovative spirit and technical expertise have propelled advancements in the production of silicon carbide, a material crucial for high-performance electronic components.
Collaborations
Throughout his career, Shigeto has collaborated with notable colleagues such as Nobuyuki Nagato and Kotaro Yano. Their teamwork has fostered a rich environment of innovation, resulting in groundbreaking advancements in materials science and engineering.
Conclusion
Masashi Shigeto's work in the field of silicon carbide technology exemplifies the impact of innovative thinking on industry practices. His patents not only reflect his inventive prowess but also contribute to advancing semiconductor technologies, showcasing the importance of collaboration and excellence in research and development.