Yokosuka, Japan

Masamichi Fujiwara

This inventor holds 28 USPTO granted patents, plus 4 CIPO patents and 2 EPO patents, primarily in Optical Communication. Top assignee: Nippon Telegraph and Telephone Corporation. Active years: 2002-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamichi Fujiwara. Retrieved from https://idiyas.com/inventor/masamichi-fujiwara

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 75.0



Average Co-Inventor Count = 3.6

ph-index = 6

Forward Citations = 108(Granted Patents)


Location History:

  • Kanagawa, JP (2002)
  • Funabashi, JP (2008)
  • Chiba, JP (2009)
  • Yokosuka, JP (2004 - 2016)
  • Tokyo, JP (2005 - 2022)
  • Musashino, JP (2022 - 2024)

Company Filing History:


Years Active: 2002-2025

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Areas of Expertise:
Optical Receiver
Optical Modulation
Branch Ratio Calculation
Coherent Optical Reception
Optical Amplification
Signal Processing
Multi-Wavelength Generation
Polarization Scrambler
Optical Transmission
Optical Communication System
Light Leakage Confirmation
28 patents (USPTO):Explore Patents

Title: Innovations of Masamichi Fujiwara in Optical Systems

Introduction

Masamichi Fujiwara is a distinguished inventor based in Yokosuka, Japan, who has made significant contributions to the field of optical systems. With an impressive portfolio of 25 patents, he has been at the forefront of developing innovative technologies that enhance optical power feeding and light leakage confirmation processes.

Latest Patents

Among his notable inventions is the "Optical Feeding System." This advanced system comprises an optical power feeding unit and multiple drop units designed to receive light from the feeding unit, branch input light, and output the branched light. The innovative design includes a power-feed light generating unit and a control mechanism that intelligently manages the branching ratios of the light output.

Another remarkable patent is the "Light Leakage Confirmation Method, Apparatus and Program." This method enhances the accuracy of light leakage detection in optical transmission lines through a series of well-defined steps that measure the intensity of the reflected light and determine potential leaks with high precision.

Career Highlights

Masamichi currently employs his expertise at Nippon Telegraph and Telephone Corporation (NTT), a leading company in telecommunications and networking. His inventive spirit and technical skills have led to a prolific career, characterized by a strong commitment to pushing the boundaries of optical technology.

Collaborations

Throughout his career, Masamichi has collaborated with esteemed colleagues, including Junichi Kani and Ryo Igarashi. These partnerships have fostered a dynamic environment for innovation, resulting in several cutting-edge inventions in the realm of optical systems.

Conclusion

Masamichi Fujiwara's contributions to optical technology are noteworthy and have paved the way for advancements in various applications. His inventive work exemplifies the integration of creativity and technical expertise, securing his place as a valuable inventor in the field. As he continues to innovate, the impact of his patents will undoubtedly be felt across many industries.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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