This inventor holds 6 USPTO granted patents. Top assignees: Nippon Steel Corporation, Intellectual Ventures I LLC, Pegre Semiconductors LLC. Active years: 1998-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiyoda-ku, JP (1998 - 2006)
- Tokyo, JP (2002 - 2012)
Company Filing History:

Years Active: 1998-2012
Title: Innovations of Yoshihiro Kumazaki
Introduction
Yoshihiro Kumazaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work focuses on enhancing the reliability and efficiency of semiconductor devices.
Latest Patents
Kumazaki's latest patents include innovations in semiconductor devices with controllable transistor threshold voltage. This invention describes a single-layer gate nonvolatile semiconductor memory where a floating gate is formed on a semiconductor substrate. The floating gate is designed to oppose a diffusion layer that serves as a control gate, utilizing a gate oxide film for capacitive coupling. This design allows for a reliable semiconductor device that can withstand high voltage during data operations while minimizing variations in threshold values. Another notable patent is for a non-volatile semiconductor memory with a single-layer gate structure, which shares similar features and benefits, ensuring a low-cost manufacturing process and enhanced operational reliability.
Career Highlights
Throughout his career, Kumazaki has worked with notable companies such as Nippon Steel Corporation and Pegre Semiconductors LLC. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
(Section skipped due to space constraints)
Conclusion
Yoshihiro Kumazaki's contributions to semiconductor technology through his patents demonstrate his commitment to innovation and reliability in the field. His work continues to influence advancements in nonvolatile memory devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile