Location History:
- Chiyoda-ku, JP (2006)
- Tokyo, JP (2004 - 2011)
Company Filing History:
Years Active: 2004-2011
Title: Jiro Hiroishi: Innovator in Optical Regeneration Technology
Introduction
Jiro Hiroishi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, holding a total of 8 patents. His work focuses on advancements in optical regeneration systems, which are crucial for improving signal transmission in communication networks.
Latest Patents
Hiroishi's latest patents include a wavelength division multiplex optical regeneration system and a wavelength division multiplex optical regeneration method. These innovations involve an optical regeneration system designed to regenerate degenerated signal light. The system comprises a regeneration device that features components such as a soliton converter, a pulse roller, a Kerr-shutter, and a soliton purifier. The soliton converter utilizes an anomalous-dispersion fiber (ADF) with a fiber length up to three times the soliton frequency. The pulse roller is equipped with a fiber that exhibits high non-linear characteristics. Additionally, the Kerr-shutter includes an optical local oscillation generator, a phase comparator, and a control unit that regulates the frequency of the optical local oscillation based on the detected phase difference. The soliton purifier is strategically placed between two optical fibers to enhance signal quality.
Career Highlights
Hiroishi is currently employed at Furukawa Electric Co., Ltd., a company known for its innovations in electrical and optical technologies. His work at the company has allowed him to develop cutting-edge solutions that address the challenges of modern communication systems.
Collaborations
Throughout his career, Hiroishi has collaborated with notable colleagues, including Masanori Takahashi and Ryuichi Sugizaki. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field of optics.
Conclusion
Jiro Hiroishi's contributions to optical regeneration technology exemplify the impact of innovative thinking in enhancing communication systems. His patents reflect a deep understanding of optical principles and a commitment to advancing the field.
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