Kawasaki, Japan

Norifumi Shukunami

USPTO Granted Patents = 54 

 

Average Co-Inventor Count = 2.7

ph-index = 8

Forward Citations = 245(Granted Patents)

Forward Citations (Not Self Cited) = 230(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Sapporo, JP (1998 - 2013)
  • Kawasaki, JP (2007 - 2015)
  • Yokohama, JP (2007 - 2024)

Company Filing History:


Years Active: 1998-2024

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Areas of Expertise:
Fiber-Optic Communication
Optical Amplifier
Wavelength Conversion
Raman Amplifier
Optical Transmission
Signal Processing
Gain Control
Nonlinear Optical Properties
Optical Channel Monitoring
Dispersion Compensation
Wavelength-Division Multiplexing
Optical Signal Processing
54 patents (USPTO):Explore Patents

Title: Innovations and Contributions of Norifumi Shukunami in Fiber-Optic Technology

Introduction

Norifumi Shukunami, based in Kawasaki, Japan, is a prominent inventor known for his significant contributions to fiber-optic technology. With an impressive portfolio of 54 patents, Shukunami has made noteworthy advancements in optical communication systems, enhancing the efficiency and capabilities of these technologies.

Latest Patents

Shukunami's latest patents embody cutting-edge innovations in fiber-optic communication. The first patent details a fiber-optic communication apparatus that incorporates an optical monitor. This monitor tracks a Wavelength Division Multiplexing (WDM) signal, allowing for the calculation of a control value to regulate optical power within a narrow frequency range. This advanced adjustment mechanism optimizes the performance of the WDM signal, ensuring improved communication reliability.

Another groundbreaking patent is for an optical coherent transceiver paired with a filter adjustment method. This coherent transceiver is designed with a modulator and receiver that operate based on laser light, effectively managing multiplexed signals. The system includes a filter to refine the quality of the received light, thereby enhancing the overall efficiency of data transmission. The detector and controller components facilitate real-time adjustments to the filter's passband based on detected light levels, further refining the communication process.

Career Highlights

Shukunami has built a distinguished career at leading technology firms such as Fujitsu Corporation and Fujitsu Telecom Networks Limited. His work in these organizations has been pivotal in advancing fiber-optic technologies and improving telecommunication systems. His expertise and innovative mindset have made him a valuable asset in the field of optical communications.

Collaborations

During his career, Shukunami has collaborated with notable colleagues, including Shinya Inagaki and Tatsuya Tsuzuki. These partnerships have fostered a creative environment for innovation, allowing for the cross-pollination of ideas and advancements in technology.

Conclusion

Norifumi Shukunami stands out as a leading inventor in the realm of fiber-optic communication technologies. His impressive collection of patents reflects a commitment to innovation and improvement, making substantial contributions that have transformed the landscape of telecommunications. As the demand for efficient and reliable communication systems grows, Shukunami's work will undoubtedly continue to shape the future of this vital industry.

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