Yokohama, Japan

Yukihiko Wakai

This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Nippon Telegraph and Telephone Corporation. Active years: 1996-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yukihiko Wakai. Retrieved from https://idiyas.com/inventor/yukihiko-wakai

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 2

Forward Citations = 23(Granted Patents)


Company Filing History:


Years Active: 1996-1998

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2 patents (USPTO):Explore Patents

Title: Innovations of Yukihiko Wakai

Introduction

Yukihiko Wakai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, particularly in the development of optical regenerators and transmission systems. With a total of 2 patents, Wakai's work has had a considerable impact on the industry.

Latest Patents

Wakai's latest patents include an optical regenerator and an optical transmission system. The first clock extraction device included in the receiving section of the optical regenerator recovers a receiving clock. This receiving clock follows the jitter contained in a receiving optical signal caused by fiber wavelength dispersion. The receiving optical signal is detected in synchrony with the receiving clock. A transmission section includes a transmitter for generating a transmission optical signal changed in phase to suppress stimulated Brillouin scattering. Additionally, a second clock extraction device regenerates the transmission clock without following the jitter. The data of the receiving optical signal is processed at a processing unit and intensity-modulated based on the processed data. The timing of this modulation is synchronized with the transmission clock. The receiving clock is synchronized with the jitter, preventing any logic errors. Since the transmission clock does not follow the jitter, the accumulation of jitter is effectively prevented.

Career Highlights

Wakai has worked with prominent companies such as Hitachi, Ltd. and Nippon Telegraph and Telephone Corporation. His experience in these organizations has contributed to his expertise in optical technologies and innovations.

Collaborations

Some of Wakai's notable coworkers include Ryoji Takeyari and Takashi Funada. Their collaborations have likely fostered advancements in their respective fields.

Conclusion

Yukihiko Wakai's contributions to optical technology through his patents and career experiences highlight his role as an influential inventor. His work continues to shape the future of optical systems and innovations.

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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