Yoshiyuki Nonaka

This inventor holds 10 USPTO granted patents. Top assignees: Konica Corporation, Konishiroku Photo Industry Co., Ltd.. Active years: 1986-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Nonaka. Retrieved from https://idiyas.com/inventor/yoshiyuki-nonaka

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 52(Granted Patents)

Location History:

Hino, JP (1986 - 1991)
Odawara, JP (1990 - 1996)
Hachioji, JP (1987 - 2000)

Company Filing History:

Konishiroku Photo Industry Co., Ltd.

patents

Years Active: 1986-2000

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6096490 - Silver halide light sensitive color photographic material and process (2000-08-01),

2. 5541040 - Positive type color light sensitive material and the image forming (1996-07-30),

3. 5480767 - Silver halide color photographic light-sensitive material and (1996-01-02),

4. 5436117 - Positive type silver halide color photographic light-sensitive material (1995-07-25),

5. 5436116 - Silver halide color photographic photosensitive material and color proof (1995-07-25),

6. 5015563 - Silver halide light-sensitive color photographic material suitable for (1991-05-14),

7. 4943518 - Direct-positive silver halide photographic light-sensitive material and (1990-07-24),

8. 4894322 - Light-sensitive silver halide color photographic material (1990-01-16),

9. 4710453 - Silver halide color photographic material (1987-12-01),

10. 4565778 - Silver halide photographic materials (1986-01-21),

Title: The Innovations of Yoshiyuki Nonaka

Introduction

Yoshiyuki Nonaka is a prominent inventor based in Odawara, Japan. He has made significant contributions to the field of photography through his innovative patents. With a total of 10 patents, Nonaka has focused on developing advanced photographic materials and processes.

Latest Patents

Among his latest patents is a silver halide light sensitive color photographic material. This invention comprises a reflective support with a hydrophilic colloid layer containing a white pigment and one or more silver halide emulsion layers. Notably, at least one of these layers has a spectral sensitivity maximum at a wavelength of 730 nm or more, with an average primary particle size of the white pigment being 0.30 µm or more. Another significant patent is for a positive type color light sensitive material, which includes a support with mainly yellow, magenta, and cyan image forming layers. This material is designed to improve the approximation degrees of image quality to a printed printer.

Career Highlights

Yoshiyuki Nonaka has worked with notable companies in the photography industry, including Konica Corporation and Konishiroku Photo Industry Co., Ltd. His work has been instrumental in advancing photographic technology and materials.

Collaborations

Throughout his career, Nonaka has collaborated with esteemed colleagues such as Yasuo Tosaka and Keiichi Hoshino. These collaborations have contributed to the development of innovative photographic solutions.

Conclusion

Yoshiyuki Nonaka's contributions to the field of photography through his patents and collaborations have significantly impacted the industry. His innovative spirit continues to inspire advancements in photographic technology.

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]