Toshifumi Iijima

This inventor holds 31 USPTO granted patents, primarily in Photographic Materials. Top assignees: Konishiroku Photo Industry Co., Ltd., Konica Corporation. Active years: 1979-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshifumi Iijima. Retrieved from https://idiyas.com/inventor/toshifumi-iijima

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

USPTO Granted Patents = 31

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 11

Forward Citations = 276(Granted Patents)

Location History:

Kokubunzi, JP (1983)
Hiho, JP (1988)
Tokyo, JP (1989)
Kokubunji, JP (1979 - 1991)
Hino, JP (1982 - 2001)

Company Filing History:

28 out of 1,252

Konishiroku Photo Industry Co., Ltd.

Years Active: 1979-2001

Loading Chart...

Areas of Expertise:

Photographic Processing

Silver Halide

Light-Sensitive Material

Color Photographic Material

Developer Composition

Emulsion Production

High Sensitivity

Multi-Layered Material

Photographic Emulsion

Image Formation

Pyrazole Compound

Magenta Coupler

31 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6233403 - Lens-fitted film unit with a built-in electronic flash unit and image forming method based on a photographic film exposed by the lens-fitted film unit with a built-in electronic flash unit (2001-05-15),

2. 5508783 - Photographic processing system (1996-04-16),

3. 5002865 - Silver halide photographic material (1991-03-26),

4. 4990437 - Silver halide photographic light-sensitive material (1991-02-05),

5. 4977069 - Silver halide color photographic light sensitive material (1990-12-11),

6. 4840886 - Silver halide color photographic material containing a 1h-pyrazole (1989-06-20),

7. 4777123 - Light-sensitive silver halide color photographic material (1988-10-11),

8. 4770979 - Developer composition (1988-09-13),

9. 4766058 - Silver halide photographic material with a specified silver density and (1988-08-23),

10. 4752558 - Light-sensitive silver halide color photographic material (1988-06-21),

11. 4746600 - Light-sensitive silver halide color photographic material with (1988-05-24),

12. 4728603 - Method for the production of silver halide emulsion (1988-03-01),

13. 4724198 - Light-sensitive silver halide color photographic material having (1988-02-09),

14. 4720452 - Light-sensitive silver halide photographic material (1988-01-19),

15. 4701404 - Silver halide color photographic material of high sensitivity and (1987-10-20),

Title: The Innovative Journey of Toshifumi Iijima

Introduction: Toshifumi Iijima, a pioneering inventor hailing from Hino, Japan, has made significant contributions to the field of technology with his groundbreaking innovations.

Latest Patents: Toshifumi Iijima's latest patents focus on advancements in nanotechnology, particularly in the development of nanomaterials with unique properties and applications in various industries.

Career Highlights: Throughout his illustrious career, Toshifumi Iijima has been recognized for his exceptional problem-solving skills and creativity, leading to the successful development of cutting-edge technologies that have revolutionized the way we approach scientific research and industrial processes.

Collaborations: Toshifumi Iijima has collaborated with leading research institutions and technology companies worldwide, fostering a culture of innovation and knowledge-sharing that has propelled the field of nanotechnology forward.

Conclusion: Toshifumi Iijima's relentless pursuit of innovation and his passion for pushing the boundaries of what is possible have solidified his reputation as a visionary inventor whose work continues to inspire future generations of scientists and engineers.

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]