Location History:
- Oizumi-machi, JP (2002 - 2004)
- Ora-gun, JP (2005 - 2008)
- Osaka, JP (1999 - 2009)
- Gunma, JP (2000 - 2011)
Company Filing History:
18 out of 8,776 
1 out of 39 
1 out of 2 Years Active: 1999-2011
Title: The Innovative Mind of Hirotoshi Kubo
Introduction
Hirotoshi Kubo, a prominent inventor based in Gunma, Japan, has made significant contributions to the field of semiconductor technology. With a remarkable portfolio of 19 patents, he has established himself as a key player in advancing electronic devices and their manufacturing processes.
Latest Patents
Kubo's latest inventions include groundbreaking patents that enhance semiconductor device performance. One notable patent is a semiconductor device and method of manufacturing the same. This invention features emitter pad electrodes connected to an active region, as well as collector and base pad electrodes on the surface of a semiconductor substrate. Additionally, a backside electrode is formed on the back surface of the substrate, establishing efficient connections through feedthrough electrodes that penetrate the substrate.
Another significant patent from Kubo is for an insulated gate-type semiconductor device and its manufacturing method. This innovation allows for a completely buried interlayer dielectric film in a trench, overcoming challenges related to step coverage. Moreover, the device's design simplifies the creation of source and body regions with only one mask, ultimately minimizing device size and accommodating mask alignment errors.
Career Highlights
Throughout his illustrious career, Kubo has worked with esteemed companies in the semiconductor industry. He has notably contributed his expertise to Sanyo Electric Co., Ltd. and Kanto Sanyo Semiconductors Co., Ltd. His experience in these organizations has enabled him to refine his inventive skills and drive forward innovative semiconductor technologies.
Collaborations
Kubo's journey has also been marked by collaborations with talented individuals in the field. Noteworthy coworkers include Eiichiroh Kuwako and Hiroaki Saito, who have worked alongside him in various projects, contributing to the development of cutting-edge semiconductor solutions.
Conclusion
Hirotoshi Kubo's dedication to innovation in semiconductor technology is evidenced by his substantial number of patents and his impactful career. Through his continued efforts and collaboration with fellow experts, Kubo's work is poised to influence the future of electronic devices significantly. His inventive contributions will undoubtedly remain pivotal in the evolution of the semiconductor industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.