Saitama, Japan

Yukiko Nagatoshi

This inventor holds 60 USPTO granted patents and 7 published patent applications and 2 EPO patents, primarily in Imaging Optical Systems (CPC class G02B). Top assignees: Fujifilm Corporation, Fujinon Corporation, Fuji Photo Optical Co., Ltd.. Active years: 2003-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yukiko Nagatoshi. Retrieved from https://idiyas.com/inventor/yukiko-nagatoshi

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

USPTO Granted Patents = 60 

% Patents Active = 85.0

 

Average Co-Inventor Count = 1.5

ph-index = 5

Forward Citations = 82(Granted Patents)

Forward Citations (Not Self Cited) = 62(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Saitama-Ken, JP (2015 - 2018)
  • Saitama, JP (2003 - 2024)

Company Filing History:


Years Active: 2003-2026

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Areas of Expertise:
Projection Lens
Imaging Optical System
Projection Apparatus
Zoom Lens
Wide-Angle Lens
Projection Display Device
Relay Lens
Intermediate Image
Projection-Type Display
Optical Apparatus
Projection Zoom Lens
Imaging Lens
60 patents (USPTO):Explore Patents

Title: Innovations by Yukiko Nagatoshi: A Pioneer in Projection Technology

Introduction

Yukiko Nagatoshi, based in Saitama, Japan, is an innovative inventor with an impressive portfolio of 59 patents. His work primarily focuses on advancements in projection technology, reflecting his commitment to enhancing user experience through innovative designs and mechanisms.

Latest Patents

One of Yukiko's latest patents is for a projector with a rotatable projection lens. This advanced projector design incorporates a projection lens and a structured projector body. Notably, the projection lens features a U-shaped optical path that facilitates optimal projection quality. The lens barrel is engineered to match this design, while the housing of the projector includes a storage section. This system allows the projection lens to rotate around the optical axis, enabling precise adjustments in both the up-down and right-left directions. It can transition between a stored position within the housing and an extended position for active projection. Additionally, Yukiko has developed a sophisticated zoom optical system for projection lenses, which enhances flexibility and image clarity in various settings.

Career Highlights

Yukiko has made significant contributions to the field of optical engineering through his tenure at renowned companies such as Fujifilm Corporation and Fujinon Corporation. His technical expertise in these organizations has allowed him to focus on cutting-edge projection technologies and optical systems, paving the way for numerous innovations.

Collaborations

Throughout his career, Yukiko has collaborated with notable colleagues, including Masaru Amano and Akiko Nagahara. These partnerships have fostered a creative environment, leading to the development of innovative products and technologies that have advanced the field of projection.

Conclusion

Yukiko Nagatoshi continues to be a pivotal figure in the realm of projection technology, with his extensive array of patents underscoring his innovative spirit. As he forges ahead in his career, his contributions promise to shape the future of projection systems and inspire upcoming inventors in the industry.

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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