Company Filing History:
Years Active: 1989
Title: Innovations of Yoshihisa Hagami in Optical Communication
Introduction
Yoshihisa Hagami is a prominent inventor based in Tokyo, Japan. He is known for his significant contributions to the field of optical communication. His innovative work has led to the development of advanced communication systems that enhance data transmission efficiency.
Latest Patents
Hagami holds a patent for a "Single transmission line bidirectional optical communication system." This system comprises a directional coupler employing a polarizing beam splitter, an optical transmitting circuit for coding data, and an optical receiving circuit that decodes the data. The system also includes a circuit for detecting frequency differences between sending and receiving signals, along with a line diagnosing circuit. The polarizing beam splitter effectively eliminates near-end reflected beams, while the optical receiving circuit automatically establishes a threshold to eliminate remote-end reflected beams. The line diagnosing circuit plays a crucial role in assessing the line condition by comparing sending and receiving frequencies. He has 1 patent to his name.
Career Highlights
Hagami has made significant strides in his career, particularly through his work at Seiko Instruments Inc. His expertise in optical communication has positioned him as a key figure in the development of innovative technologies that improve communication systems.
Collaborations
Throughout his career, Hagami has collaborated with notable colleagues, including Hirochika Sato and Haruo Nakayama. These collaborations have contributed to the advancement of optical communication technologies.
Conclusion
Yoshihisa Hagami's contributions to optical communication through his innovative patent demonstrate his expertise and commitment to advancing technology in this field. His work continues to influence the development of efficient communication systems.