This inventor holds 4 USPTO granted patents. Top assignee: Nec Corporation. Active years: 2001-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2001-2003
Title: Tomonobu Yoshitake: Innovator in Semiconductor Technology
Introduction
Tomonobu Yoshitake is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of diodes with adjustable breakdown voltages. With a total of 4 patents to his name, Yoshitake continues to push the boundaries of innovation in his field.
Latest Patents
Yoshitake's latest patent focuses on a diode that has a breakdown voltage adjustable to an arbitrary value without increasing parasitic capacitance. This invention involves the epitaxial growth of a lightly doped n-type semiconductor layer on a heavily doped n-type semiconductor substrate. The design includes a heavily doped n-type impurity region, a lightly doped p-type deep guard ring, and a heavily doped p-type shallow impurity region. The configuration allows for a major p-n junction between the heavily doped n-type impurity region and the heavily doped p-type shallow impurity region, as well as another p-n junction between the lightly doped n-type semiconductor layer and the lightly doped p-type guard ring. The innovative aspect of this design is that the other p-n junction is wider in area than the major p-n junction, enabling the breakdown voltage to be adjustable without increasing parasitic capacitance.
Career Highlights
Tomonobu Yoshitake is currently employed at NEC Corporation, where he continues to develop cutting-edge technologies in semiconductors. His work has been instrumental in advancing the capabilities of diodes, making them more efficient and versatile for various applications.
Collaborations
Yoshitake collaborates with fellow inventor Atsushi Sakazaki, contributing to the innovative environment at NEC Corporation. Their combined expertise fosters a culture of creativity and technological advancement.
Conclusion
Tomonobu Yoshitake is a key figure in the semiconductor industry, known for his innovative patents and contributions to diode technology. His work at NEC Corporation and collaborations with other inventors highlight his commitment to advancing the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile