Company Filing History:
2 out of 681 
1 out of 833,002 Years Active: 1978-1979
Title: Innovations by Hirokuni Tokuda: A Pioneer in Semiconductor Manufacturing
Introduction: Hirokuni Tokuda is an accomplished inventor hailing from Kawasaki, Japan, known for his significant contributions to the field of semiconductor technology. With a focused background in manufacturing methods, Tokuda holds two patents that reflect his innovative approaches to producing semiconductor devices. His work has had a substantial impact on the industry and continues to influence the development of new technologies.
Latest Patents: Tokuda's latest patents include a novel method of manufacturing a field effect transistor and a method for manufacturing compound semiconductor devices. The first patent describes a technique wherein the exposed surface of a semi-insulating compound semiconductor substrate undergoes anodization while light is irradiated to it, establishing a gate insulating film on the substrate between source and drain regions. The second patent outlines a process for creating compound semiconductor devices that involves forming a first oxidized film on a GaAs body, followed by heating at high temperatures. This is succeeded by the formation of a second oxidized film, which alters the properties of the original film, making it easier to etch with an etchant.
Career Highlights: Throughout his career, Hirokuni Tokuda has worked with prominent companies such as Tokyo Shibaura Electric Co., Ltd., contributing to advancements in semiconductor technology. His expertise and innovative mindset have established him as a respected figure in the field of electronics.
Collaborations: Tokuda has collaborated with notable coworkers, including Kiyoo Kamei and Toshiaki Ikoma. Their collective efforts have propelled advancements in semiconductor manufacturing techniques, demonstrating the importance of teamwork in the innovation process.
Conclusion: Hirokuni Tokuda stands out as a key inventor in the semiconductor industry, with patents that demonstrate his innovative spirit and technical proficiency. His work not only exemplifies the advancements in manufacturing processes but also reflects his dedication to pushing the boundaries of technology. As the industry continues to evolve, Tokuda’s contributions are likely to remain influential in the future of semiconductor development.