Kawasaki, Japan

Tadashi Ikeuchi

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Fujitsu Corporation. Active years: 1995-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Ikeuchi. Retrieved from https://idiyas.com/inventor/tadashi-ikeuchi-iq3fki4l

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1995-1998

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3 patents (USPTO):Explore Patents

Title: Innovations of Tadashi Ikeuchi

Introduction

Tadashi Ikeuchi is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical signal transmission, holding a total of 3 patents. His work primarily focuses on enhancing the performance and stability of semiconductor laser diodes.

Latest Patents

One of his latest patents is an optical signal transmitter. This device is designed to obtain a suitable optical output waveform within a wide temperature range from a semiconductor laser diode with an APC free system. The optical transmitter consists of a semiconductor laser diode, a driver circuit, a bias current controller, a pulse current controller, and a duty variable circuit. These components work together to ensure that the optical output from the semiconductor laser diode exceeds 100% at initial adjustments.

Another significant patent is related to a semiconductor laser drive. This invention features a reference-voltage generator that controls the level of a reference voltage based on temperature. The drive-current supply unit passes a drive current through the semiconductor laser when the input signal voltage exceeds the reference voltage. This innovation compensates for the delay time caused by temperature increases, ensuring a stabilized optical power waveform and output.

Career Highlights

Tadashi Ikeuchi is currently employed at Fujitsu Corporation, where he continues to develop cutting-edge technologies in optical communications. His expertise in semiconductor laser technology has positioned him as a key player in the industry.

Collaborations

Throughout his career, Tadashi has collaborated with talented individuals such as Kazuyuki Mori and Hisako Watanabe. These partnerships have contributed to the advancement of his innovative projects.

Conclusion

Tadashi Ikeuchi's work in optical signal transmission and semiconductor laser technology showcases his dedication to innovation. His patents reflect a commitment to improving the efficiency and reliability of optical systems.

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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