Company Filing History:
Years Active: 1999
Title: Zenkichi Shibata: Innovator in Semiconductor Laser Technology
Introduction
Zenkichi Shibata is a prominent inventor based in Kitakatsuragi-gun, Japan. He has made significant contributions to the field of semiconductor laser technology. With a total of 2 patents to his name, Shibata's work has had a lasting impact on the industry.
Latest Patents
Shibata's latest patents focus on a semiconductor laser device that features clad and contact layers. This innovative device is designed to offer high performance, low operating voltage, and an extended service life. The method for fabricating this device involves stacking a semiconductor multilayer film, which includes an active layer for laser beam oscillation, on a substrate. A clad layer composed of p-type AlGaAs, doped with a p-type impurity Mg, and a contact layer made of p-type GaAs, also doped with Mg, are grown using an LPE growth process. Additionally, a surface layer with a high-resistance portion in the contact layer, which has a low carrier concentration, is removed. The active layer is strategically arranged at the center of the end surface from which the laser beam is emitted.
Career Highlights
Zenkichi Shibata has been associated with Sharp Kabushiki Kaisha Corporation, where he has contributed to various projects and innovations in semiconductor technology. His expertise in this field has positioned him as a key figure in advancing laser technology.
Collaborations
Shibata has worked alongside notable colleagues such as Taiji Morimoto and Takashi Ishizumi. Their collaborative efforts have further enhanced the development of semiconductor laser devices.
Conclusion
Zenkichi Shibata's contributions to semiconductor laser technology exemplify his innovative spirit and dedication to advancing the field. His patents reflect a commitment to improving performance and efficiency in laser devices.