This inventor holds 1 USPTO granted patent. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1991.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1991
Title: Mituhiko Kitagawa: Innovator in Semiconductor Technology
Introduction
Mituhiko Kitagawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology. His innovative work has led to the development of a unique semiconductor switching device.
Latest Patents
One of Kitagawa's notable patents is for a semiconductor switching device with an anode shortening structure. This device includes a high resistance first base layer of n-type formed on a first emitter layer of p-type through a low resistance buffer layer of n.sup.+ -type. Additionally, it features a second base layer of p-type formed on the first base layer, along with second emitter layers of n.sup.+ -type separately formed on the second base layer. The device also incorporates anode and cathode main electrodes formed in contact with the first and second emitter layers, and a gate electrode formed in contact with the second base layer. A key aspect of this invention is that part of the low resistance buffer layer is exposed to the surface of the first emitter layer and is made contact with the anode main electrode to constitute a shorting portion. The width of this shorting portion is set smaller than one tenth of that of the second emitter layer in a longitudinal direction. Kitagawa holds 1 patent for this innovative device.
Career Highlights
Kitagawa is associated with Kabushiki Kaisha Toshiba, a leading company in the technology sector. His work at Toshiba has allowed him to explore and develop advanced semiconductor technologies. His contributions have been instrumental in enhancing the performance and efficiency of semiconductor devices.
Collaborations
Throughout his career, Kitagawa has collaborated with notable colleagues, including Tsuneo Ogura and Hiromichi Ohashi. These collaborations have fostered a creative environment that has led to significant advancements in semiconductor technology.
Conclusion
Mituhiko Kitagawa's innovative work in semiconductor technology has made a lasting impact on the industry. His patent for a semiconductor switching device showcases his expertise and commitment to advancing technology. His contributions continue to influence the field and inspire future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile