Atsugi, Japan

Tadashi Sakamoto

This inventor holds 9 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent. Top assignees: Nippon Telegraph and Telephone Corporation, Hamamatsu-Photonics K.k., Ntt Advanced Technology Corporation. Active years: 1997-2023.

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

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


% Patents Active = 88.9



Average Co-Inventor Count = 6.3

ph-index = 4

Forward Citations = 44(Granted Patents)


Location History:

  • Mito, JP (1997)
  • Yokosuka, JP (1998)
  • Ibaraki-ken, JP (2004)
  • Tokyo, JP (2002 - 2006)
  • Atsugi, JP (2007 - 2023)

Company Filing History:


Years Active: 1997-2023

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9 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Tadashi Sakamoto

Introduction

Tadashi Sakamoto is a prominent inventor based in Atsugi, Japan. With a remarkable portfolio of 9 patents, he has made significant contributions to the fields of optics and light source technology. His innovative approach to enhancing the performance of swept light sources exemplifies his commitment to advancing the industry.

Latest Patents

Among his most recent patents is the development of a swept light source and drive data generation method, along with an optical deflector for swept light sources. This invention uniquely maintains a long coherence length of the output beam across an entire sweep wavelength range. By dynamically changing the gain of the gain medium in response to the wavelength sweep, Sakamoto maximizes coherence length while keeping the gain close to the lasing threshold. His work includes an SOA (semiconductor optical amplifier) current waveform data acquiring method for driving systems that uphold long coherence lengths, a novel coherence length measuring method, and a suitable optical deflector crafted for swept light sources.

Career Highlights

Tadashi Sakamoto has had a distinguished career, collaborating with leading technology firms. Notably, he has worked at Nippon Telegraph and Telephone Corporation and Hamamatsu Photonics K.K. These positions have allowed him to contribute to groundbreaking inventions and further his expertise in photonics.

Collaborations

Throughout his career, Sakamoto has partnered with esteemed colleagues, including Makoto Shimizu and Takashi Sakamoto. These collaborations have facilitated the exchange of ideas and fostered an innovative environment in which new technologies can flourish.

Conclusion

Tadashi Sakamoto's contributions to the field of optics, particularly through his patents on swept light sources, demonstrate the impact of his inventive spirit. His work continues to influence advancements in technology and showcases the importance of innovation in the industry. As we look to the future, Sakamoto's ongoing research and ingenuity will undoubtedly play a pivotal role in shaping the next generation of optical technologies.

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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