Tokyo, Japan

Takeshi Namegaya

This inventor holds 9 USPTO granted patents and 2 EPO patents. Top assignee: The Furukawa Electric Co., Ltd.. Active years: 1994-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Namegaya. Retrieved from https://idiyas.com/inventor/takeshi-namegaya

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 = 3.4

ph-index = 4

Forward Citations = 27(Granted Patents)


Location History:

  • Kanagawa, JP (1994)
  • Yokohama, JP (2004)
  • Tokyo, JP (2003 - 2018)

Company Filing History:


Years Active: 1994-2018

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9 patents (USPTO):Explore Patents

Title: Innovations of Takeshi Namegaya in Semiconductor Technology

Introduction

Takeshi Namegaya is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 9 patents. His work focuses on developing advanced semiconductor optical elements and laser modules, which are crucial for various applications in electronics and photonics.

Latest Patents

Among his latest patents are innovations related to semiconductor optical elements and semiconductor laser elements. One of his notable inventions is a semiconductor optical element that includes a semiconductor layer portion with an optical waveguide layer. This design incorporates a first impurity that suppresses atomic vacancy diffusion and a second impurity that promotes it. The semiconductor layer portion is structured with two or more regions extending in a deposition direction, each exhibiting different degrees of disordering and band gap energies in the optical waveguide layer. Additionally, he has developed a semiconductor laser element that features a window region with a disordered portion formed by group-III vacancy diffusion, which is enhanced by a promoting film. This laser element also includes a non-window region with an active layer of a quantum well structure, showcasing a significant energy band gap difference.

Career Highlights

Takeshi Namegaya has built a successful career at The Furukawa Electric Co., Ltd., where he continues to innovate in semiconductor technologies. His expertise and dedication have led to advancements that enhance the performance and efficiency of semiconductor devices.

Collaborations

Throughout his career, Namegaya has collaborated with notable colleagues, including Akihiko Kasukawa and Hidehiro Taniguchi. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Takeshi Namegaya's contributions to semiconductor technology exemplify the impact of innovative thinking in the field. His patents and collaborative efforts continue to shape the future of electronics and photonics.

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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