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For the Inventor, By the Inventor

Kanagawa, Japan

Yoshinobu Yoshida

This inventor holds 12 USPTO granted patents. Top assignee: Fuji Photo Film Company, Limited. Active years: 1977-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshinobu Yoshida. Retrieved from https://idiyas.com/inventor/yoshinobu-yoshida

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 = 2.6

ph-index = 6

Forward Citations = 69(Granted Patents)


Location History:

  • Minami-ashigara, JA (1977)
  • Minami-ashigara, JP (1981 - 1982)
  • Kanagawa, JP (1985 - 1988)

Company Filing History:

goldMedal12 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents

Years Active: 1977-1988

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12 patents (USPTO):Explore Patents
1. 4717651 - Color photographic light-sensitive material (1988-01-05),
2. 4594313 - Color image forming process comprising blocked magenta dye forming (1986-06-10),
3. 4584264 - Color photographic light-sensitive materials (1986-04-22),
4. 4530899 - Color photographic materials with phenol or naphthol ring compound (1985-07-23),
5. 4525451 - Color photographic light-sensitive material comprising phenol or (1985-06-25),
6. 4504577 - Silver halide photographic materials (1985-03-12),
7. 4358526 - Photographic light-sensitive sheet for the color diffusion transfer (1982-11-09),
8. 4268625 - Photographic light-sensitive element for the color diffusion transfer (1981-05-19),
9. 4268624 - Photographic light-sensitive sheet for the color diffusion transfer (1981-05-19),
10. 4255509 - Photographic light-sensitive sheet for the color diffusion transfer (1981-03-10),
11. 4250246 - Photographic light-sensitive sheet for the color diffusion transfer (1981-02-10),
12. 4052214 - Color diffusion transfer photographic light-sensitive material for (1977-10-04),

Title: Innovations by Yoshinobu Yoshida

Introduction

Yoshinobu Yoshida is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of photographic materials, holding a total of 12 patents. His work has advanced the technology behind color photographic light-sensitive materials, showcasing his expertise and innovative spirit.

Latest Patents

Yoshida's latest patents include a silver halide color photographic light-sensitive material. This material contains a compound or polymer that functions as a color stain inhibitor, providing various advantages such as efficient removal of oxidized products of color developing agents. Additionally, it can be utilized in light-sensitive materials that are reduced in thickness and maintains performance even after long-term storage. Another notable patent involves a color image forming process that utilizes a blocked magenta dye forming coupler. This process is characterized by high coloring speed, maximum coloring density, and excellent stability.

Career Highlights

Yoshinobu Yoshida has dedicated his career to the Fuji Photo Film Company, Limited. His work has not only contributed to the company's success but has also influenced the broader field of photography and imaging technology. His innovative approaches have set new standards in the industry.

Collaborations

Yoshida has collaborated with notable coworkers such as Nobutaka Ohki and Shinsaku Fujita. These partnerships have fostered a creative environment that has led to groundbreaking advancements in photographic technology.

Conclusion

Yoshinobu Yoshida's contributions to the field of photographic materials exemplify his innovative mindset and dedication to advancing technology. His patents and collaborations continue to influence the industry, making him a significant figure in the realm of inventions.

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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