This inventor holds 2 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1989.
Company Filing History:
Years Active: 1989
Title: **The Innovative Contributions of Hideaki Matsueda in Semiconductor Technology**
Introduction
Hideaki Matsueda, a prominent inventor based in Tokorozawa, Japan, has made significant strides in the field of semiconductor technology. With a total of two patents to his name, Matsueda's work reflects a deep understanding of the complexities involved in semiconductor laser designs.
Latest Patents
Matsueda's latest patents focus on advancements in semiconductor lasers featuring multiple quantum well structures. His first patent involves a semiconductor laser where the active layer, made up of barrier and well layers, is doped with impurities to enhance its performance. The design stipulates that the impurity density is higher in the barrier layer compared to the well layer, ensuring optimal functionality. Additionally, in configurations where the active layer is enclosed by p-type and n-type cladding layers, he emphasizes that the well layer remains undoped with varying conductivity types for the barrier layers' sections. Specifically, for effective operation, the impurity density should ideally range from approximately 1x10^18 to 1x10^19 cm^-3. His second patent echoes these principles, reinforcing the importance of regulating impurity density and conductivity types within the semiconductor laser structures.
Career Highlights
Matsueda has been an integral part of Hitachi, Ltd., a company renowned for its innovations in electronics and semiconductor technology. His expertise has contributed substantially to projects that push the boundaries of existing laser technologies, positioning Hitachi as a leader in this competitive field.
Collaborations
Throughout his career, Matsueda has collaborated with esteemed colleagues, including Naoki Chinone and Kazuhisa Uomi. Their combined efforts have aided in refining semiconductor laser technologies and have fostered an environment of innovation and excellence within their team at Hitachi, Ltd.
Conclusion
Hideaki Matsueda exemplifies the spirit of innovation within the realm of semiconductor technology. His patents not only showcase technical expertise but also contribute to the advancement of laser technologies. With collaborations that amplify his impact, Matsueda continues to be a significant figure in the semiconductor industry, paving the way for future developments.