Location History:
- Toyota, JP (2019 - 2021)
- Aichi, JP (2021)
Company Filing History:
3 out of 1,960 
3 out of 110 
1 out of 716 
Years Active: 2019-2021
Title: Innovations of Hirofumi Aoki
Introduction
Hirofumi Aoki is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the production of silicon carbide (SiC) materials. With a total of three patents to his name, Aoki's work has advanced the capabilities of SiC epitaxial wafers.
Latest Patents
One of Aoki's latest patents is titled "SiC epitaxial wafer and method for producing same." This invention outlines a method for producing a SiC epitaxial wafer that involves an epitaxial growth step. The process includes feeding an Si-based raw material gas, a C-based raw material gas, and a gas containing a chlorine element to the surface of a SiC single crystal substrate. The growth conditions specified in the patent include a film deposition pressure of 30 torr or less, a Cl/Si ratio ranging from 8 to 12, a C/Si ratio between 0.8 and 1.2, and a growth rate of 50 µm/h or more from the initial growth stage. Another significant patent is related to a film forming apparatus that includes a complex supply part designed to optimize gas flow paths for the epitaxial growth process.
Career Highlights
Throughout his career, Hirofumi Aoki has worked with prominent companies in the semiconductor industry. He has been associated with Showa Denko K.K. and the Central Research Institute of Electric Power Industry. His experience in these organizations has contributed to his expertise in semiconductor materials and processes.
Collaborations
Aoki has collaborated with several professionals in his field, including Keisuke Fukada and Masahiko Ito. These collaborations have likely enriched his research and development efforts, leading to innovative solutions in semiconductor technology.
Conclusion
Hirofumi Aoki's contributions to the field of semiconductor technology, particularly through his patents on SiC epitaxial wafers, highlight his role as an influential inventor. His work continues to impact the industry and pave the way for future advancements in semiconductor materials.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.