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For the Inventor, By the Inventor

Yokohama, Japan

Keiji Moriyama

This inventor holds 12 USPTO granted patents. Top assignee: Nikon Corporation. Active years: 1989-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Moriyama. Retrieved from https://idiyas.com/inventor/keiji-moriyama-msdhjraj

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

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 5

Forward Citations = 83(Granted Patents)


Location History:

  • Kanagawa-ken, JP (1996 - 1998)
  • Yokohama, JP (1989 - 1999)

Company Filing History:

goldMedal12 out of 9,002 
 
Nikon Corporation
 patents

Years Active: 1989-1999

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12 patents (USPTO):Explore Patents
1. 5982557 - Ocular optical system for a viewfinder with variable visibility (1999-11-09),
2. 5822627 - Focus state detection device (1998-10-13),
3. 5652424 - Focus state detection device and method (1997-07-29),
4. 5583604 - Focus detecting device (1996-12-10),
5. 5579171 - Zoom lens equipped with the image stabilizing function (1996-11-26),
6. 5402198 - Focus detecting apparatus (1995-03-28),
7. 5257062 - Focusing detection apparatus (1993-10-26),
8. 5233173 - Focus detecting apparatus with multi-directional off axis detection areas (1993-08-03),
9. 5160834 - Multidirectional divided-pupil focus detecting apparatus (1992-11-03),
10. 4986643 - Lens system capable of close-up photographing (1991-01-22),
11. 4903066 - Optical system for focus state detection (1990-02-20),
12. 4840469 - Telephoto zoom lens (1989-06-20),

Title: Keiji Moriyama: Pioneering Inventor from Yokohama

Introduction: Keiji Moriyama is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Keiji Moriyama holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative spirit and forward-thinking approach.

Career Highlights: With over two decades of experience in the tech industry, Keiji Moriyama has worked with leading research institutions and companies to develop cutting-edge solutions that have revolutionized the way we interact with technology.

Collaborations: Throughout his career, Keiji Moriyama has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of innovation and creativity in all his projects.

Conclusion: Keiji Moriyama's passion for pushing the boundaries of technology and his relentless pursuit of excellence make him a true pioneer in the world of inventions, inspiring the next generation of inventors to dream big and create a better future.

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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