Toshiharu Nagashima

This inventor holds 12 USPTO granted patents. Top assignees: Konica Corporation, Konishiroku Photo Industry Co., Ltd.. Active years: 1984-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiharu Nagashima. Retrieved from https://idiyas.com/inventor/toshiharu-nagashima

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 5

Forward Citations = 51(Granted Patents)

Location History:

Hino, JP (1984 - 1993)
Tokyo, JP (1990 - 1996)

Company Filing History:

Konishiroku Photo Industry Co., Ltd.

patents

Years Active: 1984-1996

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5582966 - Method for producing a silver halide photographic light-sensitive (1996-12-10),

2. 5258275 - Silver halide photographic light-sensitive material and the process of (1993-11-02),

3. 5135843 - Silver halide photographic element (1992-08-04),

4. 5070005 - Process for producing silver halide photographic materials (1991-12-03),

5. 5068681 - Drying air control method in an automatic developing machine and an (1991-11-26),

6. 5066569 - Method of processing silver halide photographic materials (1991-11-19),

7. 5061611 - Methods for producing and preserving a silver halide photographic (1991-10-29),

8. 4980276 - Negative silver halide photographic light-sensitive material capable of (1990-12-25),

9. 4952960 - Drying air control method in an automatic developing machine and an (1990-08-28),

10. 4946769 - Silver halide photographic light-sensitive material and the method of (1990-08-07),

11. 4847190 - Manufacturing process for silver halide photographic emulsion (1989-07-11),

12. 4444875 - Light-sensitive silver halide photographic material (1984-04-24),

Title: The Innovations of Toshiharu Nagashima

Introduction

Toshiharu Nagashima is a notable inventor based in Hino, Japan. He has made significant contributions to the field of photography through his innovative methods and materials. With a total of 12 patents to his name, Nagashima has established himself as a key figure in the development of silver halide photographic materials.

Latest Patents

Nagashima's latest patents include a method for producing a silver halide photographic light-sensitive material. This method involves a support that has photographic layers, including a silver halide emulsion layer, a first hydrophilic colloid layer, and an outermost second hydrophilic colloid layer. Another significant patent details a method of preparing a light-sensitive silver halide photographic material, where the coated layer surface temperature is maintained at or below 19 degrees Celsius. This innovative approach allows for a specific percentage of water to binder, ensuring optimal drying conditions for the light-sensitive material.

Career Highlights

Throughout his career, Nagashima has worked with prominent companies in the photography industry, including Konica Corporation and Konishiroku Photo Industry Co., Ltd. His work has been instrumental in advancing photographic technology and improving the quality of photographic materials.

Collaborations

Nagashima has collaborated with notable coworkers such as Takeo Arai and Teruo Kashino. These partnerships have contributed to the success of his projects and the development of new technologies in the field.

Conclusion

Toshiharu Nagashima's contributions to the field of photography through his innovative patents and collaborations have made a lasting impact. His work continues to influence the industry and inspire future 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]