Company Filing History:
Years Active: 1989-1991
Title: Hiroshi Imamoto: Innovator in Semiconductor Laser Technology
Introduction
Hiroshi Imamoto is a prominent inventor based in Takatsuki, Japan. He has made significant contributions to the field of semiconductor laser technology, holding a total of three patents. His work focuses on enhancing the performance and efficiency of laser systems.
Latest Patents
Imamoto's latest patents include a stripe-shaped heterojunction laser with unique current confinement. This innovative semiconductor laser features a (100) face-oriented p-type GaAs substrate, which is treated to create a groove or level difference with an (n11) A face as an inclined surface. The design incorporates an AlGaAs:Si layer, an AlGaAs:Be cladding layer, an AlGaAs active layer, and an AlGaAs:Sn cladding layer, all grown in a specific order. The unique configuration allows for a current path to be formed solely in the groove, enabling the laser to be fabricated using molecular-beam epitaxy in a single step.
Another notable patent is the semiconductor quantum well laser. This laser utilizes a separately confined heterostructure (SCH) with a barrier layer made of a superlattice of AlGaAs/GaAs. This design minimizes the leakage of injection carriers, achieving a steep heterojunction plane and a high-quality active layer. These advancements are expected to improve the temperature characteristics and reduce the threshold current of the laser.
Career Highlights
Hiroshi Imamoto is currently employed at Omron Tateisi Electronics Co., where he continues to innovate in the field of semiconductor technology. His work has garnered attention for its potential applications in various industries, particularly in telecommunications and data transmission.
Collaborations
Imamoto has collaborated with Koichi Imanaka, contributing to the development of advanced laser technologies. Their partnership has led to significant advancements in the efficiency and performance of semiconductor lasers.
Conclusion
Hiroshi Imamoto's contributions to semiconductor laser technology have positioned him as a key figure in the field. His innovative patents and collaborations reflect his commitment to advancing laser technology for various applications. His work continues to influence the future of semiconductor devices.
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