Satoshi Nakagawa

This inventor holds 17 USPTO granted patents, primarily in Photographic Materials. Top assignees: Konishiroku Photo Industry Co., Ltd., Konica Corporation, Megumi Ide. Active years: 1976-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Satoshi Nakagawa. Retrieved from https://idiyas.com/inventor/satoshi-nakagawa-qjs2pyx9

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

USPTO Granted Patents = 17

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 7

Forward Citations = 183(Granted Patents)

Location History:

Hino, JA (1976)
Sagamihara, JP (1988 - 1990)
Hino, JP (1980 - 1999)

Company Filing History:

11 out of 1,252

Konishiroku Photo Industry Co., Ltd.

Years Active: 1976-1999

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Areas of Expertise:

Silver Halide

Photographic Material

Light-Sensitive

Color Photography

Development Inhibitor

Dye-Image

Photosensitive

Photographic Light-Sensitive

Sensitive Material

Color Photographic

Arrangement

Compound

17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5998117 - Silver halide photographic light-sensitive material (1999-12-07),

2. 4994360 - Silver halide photographic sensitive material (1991-02-19),

3. 4992360 - Silver halide light-sensitive photographic material containing a novel (1991-02-12),

4. 4931383 - Silver halide photographic light-sensitive material (1990-06-05),

5. 4865961 - Silver halide color photographic light-sensitive material (1989-09-12),

6. 4814262 - Silver halide photographic light-sensitive material to provide dye-image (1989-03-21),

7. 4791052 - Silver halide photographic light-sensitive material (1988-12-13),

8. 4774053 - Silver halide photographic light-sensitive material (1988-09-27),

9. 4725529 - Developing inhibitor arrangment in light-sensitive silver halide color (1988-02-16),

10. 4609619 - Light-sensitive silver halide color photographic material (1986-09-02),

11. 4543323 - Light-sensitive silver halide photographic material (1985-09-24),

12. 4482629 - Light-sensitive silver halide color photographic material (1984-11-13),

13. 4438193 - Silver halide photosensitive color photographic material (1984-03-20),

14. 4433046 - Silver halide photographic material (1984-02-21),

15. 4421845 - Silver halide photographic light-sensitive material (1983-12-20),

Title: The Innovations of Satoshi Nakagawa

Introduction

Satoshi Nakagawa is a prominent inventor based in Hino, Japan. He has made significant contributions to the field of photography, particularly in the development of light-sensitive materials. With a total of 17 patents to his name, Nakagawa's work has had a lasting impact on photographic technology.

Latest Patents

Among his latest patents is a silver halide photographic light-sensitive material. This innovative material comprises a support and one or more photographic constituent layers, with at least one layer containing a dye that can be decolored by reacting with a color developing agent. Another notable patent is a silver halide photographic material that includes a pyrazolotriazole coupler and a stabilizer, enhancing the performance and quality of photographic images.

Career Highlights

Throughout his career, Nakagawa has worked with notable companies such as Konishiroku Photo Industry Co., Ltd. and Konica Corporation. His experience in these organizations has allowed him to refine his expertise in photographic materials and technologies.

Collaborations

Satoshi Nakagawa has collaborated with esteemed colleagues, including Shuji Kida and Morito Uemura. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Satoshi Nakagawa's contributions to the field of photography through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of photographic materials and technologies.

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]