Tokyo, Japan

Tatsuo Yamaguchi

This inventor holds 64 USPTO granted patents and 1 published patent application and 21 EPO patents, primarily in Ophthalmic Technology (CPC class B01J). Top assignees: Topcon Corporation, Asahi Kasei Chemicals Corporation, Kabushiki Kaisha Topcon. Active years: 1981-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Yamaguchi. Retrieved from https://idiyas.com/inventor/tatsuo-yamaguchi

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

USPTO Granted Patents = 64 

% Patents Active = 81.3

 

Average Co-Inventor Count = 2.8

ph-index = 11

Forward Citations = 354(Granted Patents)

Forward Citations (Not Self Cited) = 345(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Fuji, JP (1981 - 1993)
  • Hino, JP (1987 - 1996)
  • Shizuoka, JP (2000)
  • Shizuoka-ken, JP (2000)
  • Ihara-Gun, JP (2001)
  • Kawasaki, JP (2002 - 2014)
  • Chiyoda-ku, JP (2014)
  • Tokyo, JP (1989 - 2021)
  • Warabi, JP (2019 - 2024)

Company Filing History:


Years Active: 1981-2026

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Areas of Expertise:
Ophthalmic Imaging
Data Processing
Ophthalmic Apparatus
Eye-Fatigue Examining
Scanning Imaging
Ophthalmologic Device
Thermoplastic Elastomer
Electronic Apparatus
Oxide Catalyst
Supported Composite Particle
Fundus Imaging
Usage Management
64 patents (USPTO):Explore Patents

Title: Tatsuo Yamaguchi: A Visionary in Ophthalmologic Innovations

Introduction

Tatsuo Yamaguchi, based in Tokyo, Japan, is a distinguished inventor noted for his extensive contributions to the field of ophthalmology. With an impressive portfolio of 60 patents, Yamaguchi has significantly advanced the technology related to eye care and vision correction. His inventions reflect a deep commitment to enhancing ocular health and improving diagnostic procedures.

Latest Patents

Yamaguchi's latest patents include groundbreaking inventions such as an ophthalmologic device and an ophthalmologic system. The specific device is designed to be coupled with a correcting device that corrects the eyes of subjects. This innovative device features a couple member for detachable coupling, a second optical element that branches optical paths, and an objective measuring system for acquiring ocular characteristics efficiently.

Another noteworthy patent is the ophthalmologic information processing apparatus, which corrects an image of a subject's eye by processing multiple A-scan images. This apparatus includes a specifying unit that identifies transformation positions along the measurement light's traveling direction and a transforming unit that translates pixel positions within the image, ultimately enhancing accuracy in ocular diagnostics.

Career Highlights

Throughout his career, Tatsuo Yamaguchi has worked with some of the leading companies in the ophthalmic industry, including Topcon Corporation and Asahi Kasei Chemicals Corporation. His work in these organizations has allowed him to expand his research and innovate in ways that have had a lasting impact on the field.

Collaborations

Yamaguchi has collaborated with notable coworkers such as Ryoichi Hirose and Toshifumi Mihashi. These collaborations have likely fueled the development of several of his patents, combining their expertise to push the boundaries of what is possible in ophthalmologic technologies.

Conclusion

In conclusion, Tatsuo Yamaguchi stands as a pioneer within the realm of ophthalmologic innovations. His extensive patent portfolio not only reflects his dedication to improving eye health but also underscores the importance of collaboration and innovation in driving advancements in medical technology. Through his remarkable inventions, Yamaguchi continues to shape the future of ophthalmology, ensuring better vision care for patients around the world.

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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