Company Filing History:
Years Active: 2006-2012
Title: Innovations of Yukihisa Hirotsugu
Introduction
Yukihisa Hirotsugu is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor devices, particularly in photodiodes and preamplifier systems. With a total of 3 patents to his name, Hirotsugu continues to push the boundaries of technology.
Latest Patents
One of his latest patents is for a "Pin photodiode and manufacturing method of same." The objective of this invention is to provide a semiconductor device containing a photodiode that has stable, high sensitivity with respect to short wavelength light near 405 nm. The manufacturing method for this semiconductor device involves a PIN photodiode that has several layers formed on a silicon substrate, including a p-type silicon region, an n-type silicon layer, a field oxide film, and a silicon oxide film that covers the surface of the active region. The design includes extending portions that facilitate hydrogen diffusion, enhancing the device's performance.
Another significant patent is for a "Preamplifier system having programmable resistance." This invention discloses a biasing scheme that helps reduce current noise in associated devices, such as magneto-resistive devices. The biasing scheme allows for setting a resistance path in a preamplifier, which energizes the associated device based on a biasing current. This innovative approach mitigates noise during the energization of the device, improving its overall functionality.
Career Highlights
Yukihisa Hirotsugu is currently employed at Texas Instruments Corporation, where he applies his expertise in semiconductor technology. His work has been instrumental in advancing the capabilities of electronic devices, making them more efficient and reliable.
Collaborations
Hirotsugu has collaborated with several talented individuals in his field, including Hiroyuki Tomomatsu and Indumini W Ranmuthu. These collaborations have fostered innovation and contributed to the development of cutting-edge technologies.
Conclusion
Yukihisa Hirotsugu is a prominent inventor whose work in semiconductor devices has led to significant advancements in technology. His patents reflect a commitment to innovation and excellence in the field. Through his contributions, he continues to shape the future of electronic devices.