Kawasaki, Japan

Hisaya Sakamoto

This inventor holds 9 USPTO granted patents and 1 published patent application. Top assignee: Fujitsu Corporation. Active years: 1997-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisaya Sakamoto. Retrieved from https://idiyas.com/inventor/hisaya-sakamoto

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

USPTO Granted Patents = 9 

% Patents Active = 77.8

Average Co-Inventor Count = 4.0

ph-index = 6

Forward Citations = 187(Granted Patents)


Location History:

  • Yokohama, JP (1997)
  • Sapporo, JP (2004)
  • Kawasaki, JP (1998 - 2010)

Company Filing History:


Years Active: 1997-2010

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9 patents (USPTO):Explore Patents

Title: The Innovative Journey of Hisaya Sakamoto

Introduction

Hisaya Sakamoto, an accomplished inventor based in Kawasaki, Japan, has made significant contributions to optical technology through his innovative designs and inventions. With a total of nine patents to his name, Sakamoto continues to push the boundaries of signal processing and optical transmission.

Latest Patents

Among Hisaya Sakamoto's latest innovations is the **Signal Light Processing Apparatus**. This apparatus is designed to set a discrimination level that adjusts optimally, regardless of its system's receiving capacity. Its unique features include a light receiving unit that converts incoming signal light into an electric signal, complemented by a level detecting unit that identifies both high-level and low-level components of the electrical signal. Additionally, it monitors the peak levels on both sides of the electric signal to ensure performance efficiency.

Another noteworthy invention is the **Optical Transmitting Device**, which incorporates a demultiplex unit that processes optical output from a Mach-Zehnder optical modulator. This unit directs the demultiplexed optical output to a wavelength detection unit. The detection unit plays a crucial role by identifying wavelength deviations in the optical signal and relaying this information to a control unit, which in turn manages the driving voltage supplied to the optical modulator. Sakamoto's inventions exemplify his dedication to enhancing optical technologies.

Career Highlights

Hisaya Sakamoto is currently affiliated with Fujitsu Corporation, a prominent player in technology and innovation. His role at Fujitsu has allowed him access to state-of-the-art research and development facilities, facilitating the evolution of his inventions and contributions to the field.

Collaborations

Throughout his career, Sakamoto has collaborated with distinguished colleagues, including Akimitsu Miyazaki and Tetsuya Kiyonaga. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of innovative solutions in optical technology.

Conclusion

Through his pioneering work and dedication to advancement in optical technology, Hisaya Sakamoto has established himself as a leading inventor in the field. With numerous patents and ongoing collaborations, he continues to impact the industry significantly, inspiring future innovations that will shape the world of signal processing and beyond.

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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