Shiojiri, Japan

Toshihiko Nagumo

This inventor holds 9 USPTO granted patents and 1 EPO patent. Top assignee: Seiko Epson Corporation. Active years: 2009-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshihiko Nagumo. Retrieved from https://idiyas.com/inventor/toshihiko-nagumo

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


% Patents Active = 55.6

 

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 27(Granted Patents)


Location History:

  • Matsumoto, JP (2012)
  • Shiojiri, JP (2009 - 2017)
  • Azumino, JP (2018 - 2019)

Company Filing History:


Years Active: 2009-2019

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9 patents (USPTO):Explore Patents

Title: The Innovations of Toshihiko Nagumo

Introduction

Toshihiko Nagumo is a prominent inventor based in Shiojiri, Japan. He has made significant contributions to the field of optical technology, holding a total of 9 patents. His work primarily focuses on advancements in projectors and optical apparatuses.

Latest Patents

Nagumo's latest patents include a sophisticated projector design. This projector features an illumination device that emits a light beam, an image forming device that modulates this light to create images, and a projection optical device that projects the formed images. Additionally, it incorporates a light guide device that directs the illumination light beam to the image forming device, defining two propagation directions that intersect. Another notable patent is for an optical apparatus that combines color light fluxes using light modulators, which includes an inorganic polarizer and a transparent substrate, enhancing the efficiency and quality of light transmission.

Career Highlights

Nagumo is currently employed at Seiko Epson Corporation, a leading company in imaging and printing technology. His innovative designs and patents have played a crucial role in the development of advanced projection systems and optical devices.

Collaborations

Throughout his career, Nagumo has collaborated with notable colleagues such as Toshizo Nishi and Masahiro Saito. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Toshihiko Nagumo's contributions to optical technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of advanced imaging solutions.

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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