Company Filing History:
5 out of 42,496 
1 out of 77 Years Active: 1979-1995
Sure, here is an article about the inventor Toru Toyabe:
Title: The Innovative Mind of Toru Toyabe: Revolutionizing Semiconductor Technology
Introduction:
Toru Toyabe, a brilliant inventor hailing from Kokubunji, JP, is making waves in the world of semiconductor technology with his groundbreaking innovations. With a total of 6 patents under his belt, Toyabe's contributions are reshaping the landscape of integrated circuits and transistors.
Latest Patents:
1. Interband single-electron tunnel transistor and integrated circuit: Toyabe's invention leverages interband single-electron tunneling between a valence band and a conduction band through a p-n junction. This transistor features microcapacities formed by joining p-type and n-type semiconductor materials, creating a junction area inhibiting interband electron tunneling due to Coulomb blockade.
2. Grooved gate transistor with source and drain diffused layers: This finely structured transistor maintains a consistent threshold voltage even at small sizes. The transistor's threshold voltage can be adjusted by shaping the groove corner, with the radius of curvature and doping concentration playing crucial roles in its performance.
Career Highlights:
Throughout his illustrious career, Toru Toyabe has left his mark at prestigious companies such as Hitachi Co., Ltd and as the Director-general of the Agency of Industrial Science and Technology. His innovative spirit and dedication to advancing semiconductor technology have earned him recognition as a trailblazer in the field.
Collaborations:
Toyabe's ingenuity has been complemented by collaborations with esteemed colleagues like Sigeo Ihara and Shiroo Kamohara. Together, they have pushed the boundaries of semiconductor research and development, creating technologies that are set to revolutionize the industry.
Conclusion:
Toru Toyabe's relentless pursuit of innovation and his exceptional contributions to semiconductor technology underscore his status as a visionary inventor. With a keen eye for detail and a passion for pushing the boundaries of what is possible, Toyabe continues to inspire change and drive progress in the world of integrated circuits and transistors.