Saitama, Japan

Akiko Nagahara

This inventor holds 54 USPTO granted patents and 3 published patent applications, primarily in Projection Display Technology (CPC class G02B). Top assignees: Fujifilm Corporation, Fuji Photo Optical Co., Ltd., Fujinon Corporation. Active years: 1998-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akiko Nagahara. Retrieved from https://idiyas.com/inventor/akiko-nagahara

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

USPTO Granted Patents = 54 

% Patents Active = 81.5

Average Co-Inventor Count = 1.4

ph-index = 8

Forward Citations = 191(Granted Patents)

Forward Citations (Not Self Cited) = 175(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Omiya, JP (1998 - 2000)
  • Koshigaya, JP (1999 - 2007)
  • Saitama-ken, JP (2014 - 2017)
  • Saitama, JP (2003 - 2023)

Company Filing History:


Years Active: 1998-2026

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Areas of Expertise:
Projection Lens
Zoom Lens
Imaging Apparatus
Imaging Optical System
Projection-Type Display
Variable-Magnification
Five-Group Zoom Lens
Intermediate Image
54 patents (USPTO):Explore Patents

Title: Akiko Nagahara: Innovator in Projection Technology

Introduction

Akiko Nagahara, a prominent inventor from Saitama, Japan, has made significant contributions to the field of projection technology. With an impressive portfolio of 53 patents, his work has paved the way for advancements in display systems and optical devices.

Latest Patents

Nagahara's latest inventions include a projection-type display device and a zoom lens for projection display systems. The projection-type display device features a display element with a rectangular displayable region and a projection optical system that adheres to specific focal length conditions. It also incorporates an absorption layer on the lens to enhance light efficiency. Additionally, his innovation in the zoom lens involves multiple movable lens groups that adjust spacing in relation to the optical axis to form intermediate images on different imaging planes, showcasing his expertise in optical design and engineering.

Career Highlights

Throughout his career, Akiko Nagahara has collaborated with renowned companies such as Fujifilm Corporation and Fuji Photo Optical Co., Ltd. His work in these organizations has led to groundbreaking developments in imaging and projection technology.

Collaborations

Nagahara has worked closely with notable colleagues, including Yukiko Nagatoshi and Masaru Amano. Their teamwork has contributed to the successful design and implementation of advanced optical systems, further solidifying Nagahara's reputation as a leader in his field.

Conclusion

Akiko Nagahara’s innovations in projection technology represent a significant advancement in the industry. His extensive patent portfolio and collaborative efforts with esteemed colleagues underscore his impact as a visionary inventor. The projection devices and optical systems he has developed continue to enhance user experiences across various applications, marking him as a prominent figure in the world of inventions.

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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