Location History:
- Itami, JP (1979 - 1982)
- Hyogo, JP (1986)
- Tokyo, JP (2000)
Company Filing History:
Years Active: 1979-2000
Title: The Innovations of Toshio Sogo
Introduction
Toshio Sogo is a prominent inventor based in Itami, Japan. He has made significant contributions to the field of optical semiconductors, holding a total of 4 patents. His work focuses on enhancing the performance and efficiency of optical devices.
Latest Patents
One of his latest patents is an optical semiconductor module. This module includes a substrate with a first plate member that has strip lines for high-frequency signal transmission. The second plate member features a feeding line, with the first plate member exhibiting a loss angle at high frequencies that is smaller than that of the second plate member. Additionally, the second plate member is made from a material with higher heat conductivity than the first. The module integrates a semiconductor laser and modulator, which are strategically placed on the substrate to optimize performance.
Another notable patent is for a transverse junction stripe laser with steps at the end faces. This semiconductor laser design incorporates an active layer that is bent at an angle at both ends of the resonator. This innovative structure effectively increases the obtainable optical density while reducing absorption at the waveguide ends.
Career Highlights
Toshio Sogo is associated with Mitsubishi Electric Corporation, where he continues to develop cutting-edge technologies in the field of optical semiconductors. His work has been instrumental in advancing the capabilities of semiconductor devices.
Collaborations
He has collaborated with notable colleagues such as Yutaka Mihashi and Kenichi Yamanaka, contributing to various projects that push the boundaries of optical technology.
Conclusion
Toshio Sogo's contributions to optical semiconductor technology are significant and impactful. His innovative patents reflect his dedication to advancing the field and improving device performance.