Makoto Kajiwara

This inventor holds 26 USPTO granted patents, primarily in Photographic Materials. Top assignees: Konishiroku Photo Industry Co., Ltd., Konica Corporation. Active years: 1983-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Kajiwara. Retrieved from https://idiyas.com/inventor/makoto-kajiwara

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

USPTO Granted Patents = 26

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 8

Forward Citations = 160(Granted Patents)

Company Filing History:

16 out of 1,252

Konishiroku Photo Industry Co., Ltd.

Years Active: 1983-1994

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Areas of Expertise:

Color Photographic Material

Silver Halide Emulsion

Light-Sensitive Material

Dye Image Formation

Rapid Processing

Photographic Emulsion

Silver Halide Grains

Photographic Light-Sensitive Material

Processing Methods

Manufacturing Techniques

Image Processing

Photographic Printing

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5342748 - Color photographic light-sensitive material for printing use (1994-08-30),

2. 5338655 - Method for manufacturing a silver halide emulsion (1994-08-16),

3. 5314796 - Silver halide color photographic light sensitive material (1994-05-24),

4. 5278038 - Light-sensitive silver halide color photographic material (1994-01-11),

5. 5238788 - Method for forming a dye image (1993-08-24),

6. 5192652 - Silver halide light-sensitive photographic material (1993-03-09),

7. 5134060 - Silver halide photographic emulsion prepared with silver halide grains (1992-07-28),

8. 5116723 - Light-sensitive silver halide photographic material (1992-05-26),

9. 5085978 - Method for processing light-sensitive silver halide photographic material (1992-02-04),

10. 5023170 - Light-sensitive silver halide color photographic material (1991-06-11),

11. 4963466 - Silver halide photographic light-sensitive material suitable for rapid (1990-10-16),

12. 4942121 - Silver halide photographic light-sensitive material (1990-07-17),

13. 4914016 - Silver halide photographic light-sensitive material and processing (1990-04-03),

14. 4912026 - Light-sensitive silver halide photographic material feasible for rapid (1990-03-27),

15. 4897342 - Silver halide photographic light-sensitive material (1990-01-30),

Title: **The Innovative Contributions of Makoto Kajiwara in Photographic Technology**

Introduction

Makoto Kajiwara, a prominent inventor hailing from Odawara, Japan, has made significant contributions to the field of photographic technology. With an impressive portfolio of 26 patents, his work has been instrumental in advancing the materials used in color photography and photo-sensitive applications.

Latest Patents

Among Kajiwara's latest inventions is a color photographic light-sensitive material designed specifically for printing use. This innovative material features a reflection-type support that incorporates a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. Notably, the green-sensitive silver halide emulsion contains a monodispersed silver halide emulsion combined with a unique magenta coupler, specifically formulated to enhance photographic quality.

Another notable patent includes a method for manufacturing silver halide emulsions, which specifies that spectral sensitizing dyes are added post-formation of silver halide grains. This method allows for chemical ripening at controlled temperatures, resulting in materials with enhanced linearity in gradation and superior Dmax values, ultimately contributing to better photographic prints.

Career Highlights

Kajiwara has had a distinguished career in the photography industry, primarily working with esteemed companies including Konishiroku Photo Industry Co., Ltd. and Konica Corporation. His innovative spirit and technical expertise have consistently driven advancements in the development of photographic materials, making him a key figure in the field.

Collaborations

Throughout his career, Kajiwara has collaborated with other talented individuals, such as Masanobu Miyoshi and Kaoru Onodera. These partnerships have fostered an environment of creative synergy, allowing for the exploration and realization of cutting-edge photographic technologies.

Conclusion

Makoto Kajiwara's contributions to the field of photographic technology are invaluable. His innovative patents not only exemplify his ingenuity but also set the stage for the future of photography. As he continues to push the boundaries of what is possible in photographic materials, Kajiwara remains a pivotal figure in the landscape of invention and innovation.

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]