Company Filing History:
2 out of 567 
2 out of 8,782 
1 out of 1 Years Active: 1991-1993
Title: Kotaro Furusawa: Innovator in Semiconductor Laser Technology
Introduction
Kotaro Furusawa is an accomplished inventor based in Higashiosaka, Japan, known for his significant contributions to semiconductor laser technology. With two patents to his name, Furusawa has demonstrated his expertise and innovation in the field, paving the way for advancements in this critical area of electronics.
Latest Patents
Furusawa's recent inventions include a groundbreaking method of manufacturing a surface-emitting type semiconductor laser. This method involves a buried structure where a GaAlAs film functions as a mask layer, facilitating the formation of a GaAlAs/GaAs system burying part. Notably, this technique allows the mask layer to be produced alongside the active and cladding layers, streamlining the manufacturing process. Moreover, the mask enhances resistance to peeling during later processing, ensuring durability.
His second patent details a surface-emitting type semiconductor laser device that incorporates a buried structure, featuring a burying part with a current-blocking function surrounding the active region. It includes a semiconductor multilayer film reflecting mirror, with the Bragg wavelength expertly matched to enhance performance during pulse operation. The design utilizes GaAlAs layers of varying composition ratios in an alternating configuration, optimizing the device according to theoretical calculations.
Career Highlights
Furusawa's professional journey includes significant positions at reputable organizations like the Tokyo Institute of Technology and Sanyo Electric Co., Ltd. These experiences have not only enriched his knowledge and skill set but also facilitated his contributions to cutting-edge research in semiconductor technology.
Collaborations
Throughout his career, Furusawa has worked alongside esteemed colleagues, including Kenichi Iga and Akira Ibaraki. Their collaborations have fostered a conducive environment for innovative thinking, leading to impactful advancements in their shared field.
Conclusion
Kotaro Furusawa's work in semiconductor laser technology marks him as a notable figure in the realm of innovations and inventions. His patents exemplify the importance of creativity and technical expertise, underscoring the potential for future developments in this vital area of research and industry.