Location History:
- Musashino, JP (1994 - 2000)
- Nerima-ku, JP (2011)
- Minato-ku, JP (2012 - 2015)
- Tokyo, JP (1997 - 2020)
Company Filing History:
28 out of 35,734 
5 out of 1,030 
1 out of 200 Years Active: 1994-2020
Title: Innovations of Kiyoshi Fukuchi: A Pioneer in Coherent Optical Technology
Introduction: Kiyoshi Fukuchi is a distinguished inventor based in Tokyo, Japan, renowned for his contributions to coherent optical technology. With a remarkable 35 patents to his name, he has significantly impacted the field of optical communications through his innovative designs and methodologies.
Latest Patents: Fukuchi's latest patents focus on a coherent optical receiver and a novel device and method for detecting inter-lane skew in such receivers. His coherent optical receiver comprises various advanced components including a local light source, a 90-degree hybrid circuit, an optoelectronic converter, an analog-to-digital converter, a skew addition unit, and a Fast Fourier Transform (FFT) operation unit. The invention leverages the 90-degree hybrid circuit to create interference between multiplexed signal light and local light, efficiently separating optical signals into individual components. The optoelectronic converter plays a crucial role in detecting the optical signals and converting them into electrical signals, which are then digitized by the analog-to-digital converter. Importantly, the skew addition unit adjusts the detected digital signal to counteract delays due to differences in propagation across connected lanes, while the FFT operation unit processes the resultant data for further analysis.
Career Highlights: Kiyoshi Fukuchi has had a notable career, working with prominent companies such as NEC Corporation and TEAC Corporation. His tenure at these organizations allowed him to refine his expertise and develop innovative solutions that have earned him numerous patents and accolades within the field.
Collaborations: Throughout his career, Fukuchi has collaborated with esteemed colleagues, including Wakako Yasuda and Emmanuel Le Taillandier De Gabory. These partnerships have fostered an environment of creativity and innovation, leading to groundbreaking advancements in optical technology.
Conclusion: Kiyoshi Fukuchi stands out as a formidable figure in the realm of coherent optical technology. With his extensive patent portfolio and collaborative spirit, he continues to pave the way for future innovations in optical communications. His work not only enhances the capabilities of current technologies but also inspires future inventors and engineers in the field.