Saitama, Japan

Tatsuo Saito

This inventor holds 33 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Camera Technology. Top assignees: Fuji Photo Optical Co., Ltd., Fuji Photo Film Company, Limited, Fujinon Corporation. Active years: 1983-2012.

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

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

USPTO Granted Patents = 33 

% Patents Active = 84.8

 

Average Co-Inventor Count = 2.0

ph-index = 7

Forward Citations = 140(Granted Patents)


Location History:

  • Ohmiya, JP (1994 - 1996)
  • Oomiya, JP (1996 - 1998)
  • Omiya, JP (1998 - 2002)
  • Saitama, JP (1983 - 2012)

Company Filing History:


Years Active: 1983-2012

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Areas of Expertise:
Lens Apparatus
Driving Apparatus
Projector
Auto Focus Device
Rangefinder
Distance Measuring
Hybrid Camera
Photo Film Transporting
Bar Code Reader
Film Transporting System
Self-Photographing Method
Light Projector
33 patents (USPTO):Explore Patents

Title: Innovations of Tatsuo Saito: A Pioneer in Lens and Driving Technology

Introduction: Tatsuo Saito, a prolific inventor based in Saitama, Japan, has made significant contributions to the field of optical technology. With an impressive portfolio of 33 patents, Saito's work primarily focuses on lens apparatus and driving mechanisms that enhance photographic and imaging performance. His innovative designs reflect a deep understanding of the interplay between mechanics and optics.

Latest Patents: Among his notable inventions are two recent patents that showcase his ingenuity. The first is a lens apparatus that comprises a focus lens, a zoom lens, and a diaphragm with an adjustable aperture diameter. This apparatus not only allows users to bring subjects into focus but also seamlessly transitions between photography and adjustment modes. This feature ensures that users can immediately detect the mode through video feedback from the camera, enhancing usability.

The second patent is a driving apparatus that employs an electro-mechanical conversion element to facilitate linear movement. This device includes a driving member that responds to drive signals to move back and forth, complemented by a driven member that operates frictionally along the driving member. The apparatus incorporates a control unit that optimizes drive signals across different sections, demonstrating Saito's commitment to precision control in engineering.

Career Highlights: Tatsuo Saito's career includes key roles at esteemed companies such as Fuji Photo Optical Co., Ltd. and Fuji Photo Film Company, Limited. His experience in these notable organizations has enriched his expertise and has enabled him to push the boundaries of optical technologies. Throughout his career, Saito has consistently demonstrated an ability to innovate and improve photographic equipment through his patents.

Collaborations: Saito has collaborated with a number of talented professionals, including Shigenori Goto and Haruo Onozuka. These collaborations have leveraged diverse skills and perspectives, resulting in groundbreaking advancements in lens and driving technologies.

Conclusion: Tatsuo Saito stands out as a remarkable inventor whose work has significantly influenced the field of optical and driving technologies. His 33 patents represent a testament to his innovative spirit and dedication to enhancing user experiences in photography. As the industry continues to evolve, Saito's contributions will undoubtedly remain relevant, inspiring future inventors in the realm of optics and mechanics.

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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