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For the Inventor, By the Inventor

Hino, Japan

Shoji Kikuchi

This inventor holds 16 USPTO granted patents. Top assignee: Konishiroku Photo Industry Co., Ltd.. Active years: 1977-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shoji Kikuchi. Retrieved from https://idiyas.com/inventor/shoji-kikuchi-szo8dha3

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 6

Forward Citations = 79(Granted Patents)


Location History:

  • Hino, JA (1977 - 1978)
  • Hachioji, JP (1979 - 1981)
  • Hino, JP (1978 - 1982)

Company Filing History:

goldMedal16 out of 1,252 
 
Konishiroku Photo Industry Co., Ltd.
 patents

Years Active: 1977-1982

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16 patents (USPTO):Explore Patents
1. 4314011 - Color photographic material (1982-02-02),
2. 4277558 - Light-sensitive silver halide color photographic materials (1981-07-07),
3. 4254216 - Color photographic material (1981-03-03),
4. 4247628 - Color photographic material improved in fading properties (1981-01-27),
5. 4234678 - Light-sensitive silver halide photographic materials (1980-11-18),
6. 4205990 - Process for forming a cyan dye image by the use of a 2-equivalent cyan (1980-06-03),
7. 4191574 - Process for forming a photographic magenta dye image (1980-03-04),
8. 4138264 - Silver halide emulsion containing two equivalent type coupler for use in (1979-02-06),
9. 4134766 - Dye image forming process (1979-01-16),
10. 4126462 - Process for forming a photographic magenta dye image (1978-11-21),
11. 4113491 - Color photographic developing composition (1978-09-12),
12. 4075021 - Photosensitive material for color photography (1978-02-21),
13. 4063950 - DIR coupler that forms colorless reaction product (1977-12-20),
14. 4052212 - Photographic silver halide emulsion containing 2-equivalent cyan coupler (1977-10-04),
15. 4049455 - Light-sensitive silver halide photographic material (1977-09-20),

Title: The Innovative Contributions of Shoji Kikuchi

Introduction

Shoji Kikuchi is a prominent inventor based in Hino, Japan. He has made significant contributions to the field of photographic materials, holding a total of 16 patents. His work has greatly influenced the development of color photographic technology.

Latest Patents

Among his latest patents is a color photographic material that comprises a support and at least one layer containing a specific compound designed to prevent discoloration and fading. This innovative compound is detailed in the patent as formula [I], where R1, R2, R3, R4, R5, and R6 are defined in the specification and claims. Another notable patent involves light-sensitive silver halide photographic materials that incorporate hydroquinones and benzoquinones as anti-stain agents, enhancing the quality and longevity of photographic images.

Career Highlights

Kikuchi's career is marked by his dedication to advancing photographic technology. His work at Konishiroku Photo Industry Co., Ltd. has positioned him as a key figure in the industry. His inventions have not only improved the quality of photographic materials but have also contributed to the overall evolution of photography.

Collaborations

Throughout his career, Kikuchi has collaborated with notable colleagues, including Takaya Endo and Hajime Wada. These partnerships have fostered innovation and have led to the successful development of various photographic technologies.

Conclusion

Shoji Kikuchi's contributions to the field of photography through his patents and collaborations highlight his importance as an inventor. His work continues to influence the industry, ensuring that photographic materials remain at the forefront of technological advancement.

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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