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For the Inventor, By the Inventor

Tokyo, Japan

Shigeyuki Yanagimachi

USPTO Granted Patents = 17 

 

Average Co-Inventor Count = 2.4

ph-index = 2

Forward Citations = 27(Granted Patents)


Company Filing History:

goldMedal17 out of 35,734 
 
Nec Corporation
 patents

Years Active: 1998-2025

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17 patents (USPTO):Explore Patents
1. 12401423 - Optical network, network management device, and network management method (2025-08-26),
2. 12308599 - Optical amplifier, optical amplifier equalizing method, and transmission system (2025-05-20),
3. 12095502 - Communication device, communication controlling method, non-transitory computer-readable medium, and optical communication system (2024-09-17),
4. 11881675 - Optical amplification device, optical transmission system, and optical amplification method (2024-01-23),
5. 11870208 - Optical fiber amplifier, optical fiber amplifier control method, and transmission system (2024-01-09),
6. 11824320 - Optical amplifier, and control method therefor (2023-11-21),
7. 11695630 - Control device, control system, network system, control method, and computer-readable medium (2023-07-04),
8. 11671196 - Optical network management device, optical network system, optical network management method, and optical network management program (2023-06-06),
9. 11398711 - Multicore optical fiber amplifier and optical amplification method using multicore optical fiber amplification medium (2022-07-26),
10. 11374377 - Optical amplifying apparatus and method of amplifying optical signal (2022-06-28),
11. 11329444 - Optical amplifier and control method therefor (2022-05-10),
12. 11212027 - Optical path setting device, optical communication system, and optical path setting method (2021-12-28),
13. 11115117 - Submarine optical communication control device, control method, and non-transitory computer-readable medium (2021-09-07),
14. 8352655 - Packet communication device which selects an appropriate operation mode (2013-01-08),
15. 8172467 - Optical backplane connector, photoelectric conversion module and optical backplane (2012-05-08),

Title: Shigeyuki Yanagimachi: Innovator in Optical Network Technologies

Introduction

Shigeyuki Yanagimachi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical networks, holding a total of 17 patents. His work focuses on enhancing network management and transmission systems through innovative optical technologies.

Latest Patents

Yanagimachi's latest patents include advancements in optical networks and network management devices. One notable patent describes a network using multi-core fibers (MCF) that enables the easy construction of standby system paths. This optical network features an active system path connected by a first multi-core optical fiber, facilitating communication between transmission and reception nodes. Additionally, the standby system path is composed of multiple second multi-core optical fibers, allowing for seamless switching between paths.

Another significant patent involves an optical amplifier designed to amplify wavelength multiplexed signal light. This invention includes a multi-core optical fiber doped with rare-earth ions, an excitation light source, and a wavelength demultiplexing means. The system efficiently separates and processes various wavelength bands, enhancing the overall performance of optical transmission systems.

Career Highlights

Shigeyuki Yanagimachi is currently associated with NEC Corporation, where he continues to develop cutting-edge technologies in optical networking. His expertise and innovative approach have positioned him as a key figure in the industry.

Collaborations

Throughout his career, Yanagimachi has collaborated with notable professionals, including Emmanuel Le Taillandier De Gabory and Keiichi Matsumoto. These collaborations have further enriched his work and contributed to advancements in optical technologies.

Conclusion

Shigeyuki Yanagimachi's contributions to optical network technologies have significantly impacted the field. His innovative patents and collaborations reflect his dedication to advancing communication systems. His work continues to inspire future developments in optical networking.

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