This inventor holds 20 USPTO granted patents and 8 published patent applications and 2 EPO patents. Top assignees: Renesas Electronics Corporation, Mitsubishi Electric Corporation. Active years: 2013-2025.
Location History:
- Kanagawa, JP (2013 - 2017)
- Tokyo, JP (2017 - 2023)
Company Filing History:


Years Active: 2013-2025
Title: Innovations of Tomohiro Tamaki in Semiconductor Technology
Introduction
Tomohiro Tamaki, an accomplished inventor based in Kanagawa, Japan, has made significant contributions to the field of semiconductor technology. With a remarkable portfolio of 19 patents, his inventions focus on enhancing the efficiency and functionality of semiconductor devices.
Latest Patents
One of Tamaki's latest innovations is a pressure-contact semiconductor device designed to suppress electrical contact between the outer peripheral portion of an intermediate electrode and the front surface electrode of a semiconductor chip. This design reduces the area of the semiconductor chip while maintaining performance integrity. The pressure-contact semiconductor device includes a variety of first conductor films and an insulating film strategically placed to optimize the functionality of the device.
Another noteworthy patent filed by Tamaki involves a semiconductor device featuring a unique structural design with a substrate, a drift layer, a base layer, and multiple electrodes, including a trench gate. This configuration aims to improve the efficiency and reliability of semiconductor operation by ensuring that the first distance between the impurity concentration peak and the trench gate exceeds 1 µm, thereby enhancing performance.
Career Highlights
Throughout his career, Tomohiro Tamaki has been associated with industry giants like Renesas Electronics Corporation and Mitsubishi Electric Corporation. His work at these prestigious companies has allowed him to refine his expertise and contribute to groundbreaking semiconductor innovations.
Collaborations
Tamaki has also collaborated with prominent colleagues, including Yoshito Nakazawa and Satoshi Eguchi. Together, they have worked on various projects that push the boundaries of semiconductor technology, resulting in impactful patents that continue to influence the industry.
Conclusion
Tomohiro Tamaki's dedication to innovation in semiconductor technology is evident through his numerous patents and collaborations with leading companies and talented individuals. His groundbreaking work not only advances the field but also sets a high standard for future inventions in the industry.