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For the Inventor, By the Inventor

Minamiashigara, Japan

Tatsuo Heki

This inventor holds 23 USPTO granted patents and 1 published patent application, primarily in Photographic Materials. Top assignee: Fuji Photo Film Company, Limited. Active years: 1983-2005.

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

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

Calculating rank
USPTO Granted Patents = 23 

% Patents Active = 95.7

Average Co-Inventor Count = 2.7

ph-index = 8

Forward Citations = 167(Granted Patents)


Location History:

  • Ashigara, JP (1989)
  • Kanagawa, JP (1984 - 1991)
  • Minami-ashigara, JP (1983 - 1994)
  • Tokyo, JP (2005)

Company Filing History:

goldMedal23 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents

Years Active: 1983-2005

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Areas of Expertise:
Direct Positive
Silver Halide
Photographic Material
Color Image Formation
Photosensitive Material
Nucleating Emulsions
Light-Sensitive Material
Granular Film
Image Development
Internal Latent Image
DIR Coupler
Photo-Sensitive Materials
23 patents (USPTO):Explore Patents
1. 6936403 - Recording medium (2005-08-30),
2. 5364750 - Direct positive silver halide photosensitive material (1994-11-15),
3. 5009993 - Direct positive photographic material (1991-04-23),
4. 4970140 - Direct positive photographic light-sensitive material (1990-11-13),
5. 4956267 - Method for forming a direct positive color image (1990-09-11),
6. 4954427 - Process for the formation of direct positive images (1990-09-04),
7. 4948712 - Direct positive photographic materials and a method of forming direct (1990-08-14),
8. 4933265 - Process for forming direct positive color image (1990-06-12),
9. 4914009 - Process for forming direct positive color image comprising the use of (1990-04-03),
10. 4880729 - Method for forming direct positive image comprising developing with a (1989-11-14),
11. 4880727 - Direct positive photographic material (1989-11-14),
12. 4877723 - Silver halide photographic material comprising a specified nucleating (1989-10-31),
13. 4871653 - Process for forming direct-positive image (1989-10-03),
14. 4863845 - Internal latent image type direct positive silver halide emulsions and (1989-09-05),
15. 4863839 - Direct positive color image forming process (1989-09-05),

Title: The Innovative Journey of Tatsuo Heki

Introduction: Tatsuo Heki, a pioneering inventor hailing from Minami-ashigara, Japan, has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Tatsuo Heki's most recent patents focus on advancements in renewable energy technologies, particularly in the field of solar power efficiency and storage solutions.

Career Highlights: With a career spanning over two decades, Tatsuo Heki has established himself as a leading figure in the innovation landscape, with a strong focus on sustainability and environmental conservation. His work has been recognized globally for its impact and ingenuity.

Collaborations: Throughout his career, Tatsuo Heki has collaborated with various research institutions, universities, and leading technology companies to further his research and bring his inventions to life. His collaborative efforts have led to the development of cutting-edge technologies that have reshaped industries.

Conclusion: Tatsuo Heki's relentless pursuit of innovation and commitment to creating a more sustainable future have solidified his position as a visionary inventor. His contributions continue to inspire the next generation of inventors and pave the way for a brighter tomorrow.

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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