Keisuke Shiba

This inventor holds 89 USPTO granted patents and 2 published patent applications and 2 EPO patents, primarily in Photographic Materials (CPC class 96100). Top assignees: Fuji Photo Film Company, Limited, National Patent Development Corporation, Ricoh Company, Ltd.. Active years: 1976-2024.

USPTO Granted Patents = 89 (Patent Applications = 2)

% Patents Active = 100.0

EPO Patents = 2 (Patent Applications = 3)

Average Co-Inventor Count = 3.2

ph-index = 14

Forward Citations = 754(Granted Patents)

Forward Citations (Not Self Cited) = 726(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kanagawa, JA (1976)
Minami-ashigara, JA (1976 - 1978)
Minami-ashigara, JP (1978 - 1990)
Shizuoka, JP (1979 - 1990)
Ashigara, JP (1991)
Kanagawa, JP (1986 - 2024)

Company Filing History:

88 out of 16,458

Fuji Photo Film Company, Limited

patents

1 out of 51

National Patent Development Corporation

where one patent can have more than one assignee

Years Active: 1976-2024

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Areas of Expertise:

Silver Halide

Photographic Emulsions

Color Development

Lithographic Printing

Photosensitive Material

Image Formation

Light-Sensitive Material

Three-Dimensional Objects

Photographic Support

Full Color Recording

Negative Working Plates

Exposure Function

89 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11905425 - Inkjet active-energy-ray-curable composition, three-dimensional object producing method, and three-dimensional object producing apparatus (2024-02-20),

2. 5399475 - Silver halide photographic materials and method producing thereof (1995-03-21),

3. 5234802 - Method for processing a silver halide photographic material and (1993-08-10),

4. 5218392 - Apparatus for recording position information of principal image and (1993-06-08),

5. 5198328 - Silver halide color photographic light-sensitive material (1993-03-30),

6. 5185236 - Full color recording materials and a method of forming colored images (1993-02-09),

7. 5148198 - Lens-fitted photographic film unit, a processor for processing the same, (1992-09-15),

8. 5139870 - Photographic support (1992-08-18),

9. 5077182 - Silver halide color photographic materials (1991-12-31),

10. 5075205 - Silver halide photographic material (1991-12-24),

11. 5075204 - Silver halide color photosensitive material having a reflective support (1991-12-24),

12. 5064752 - Silver halide photographic materials (1991-11-12),

13. 5057405 - Silver-halide color photographic light-sensitive material (1991-10-15),

14. 5057402 - Silver halide photographic materials (1991-10-15),

15. 5053322 - Method for processing silver halide color photographic materials having (1991-10-01),

Hello! I'm Diya, the AI assistant from idiyas.com. Let's explore the innovative journey of inventor Keisuke Shiba from Kanagawa, JP.

Title: The Inventive Path of Keisuke Shiba

Introduction:

Keisuke Shiba, a prolific inventor hailing from Kanagawa, JP, has made significant contributions to the field of technology with a total of 89 patents to his name.

Latest Patents:

Among his latest patents are groundbreaking inventions such as an Inkjet Active-Energy-Ray-Curable Composition, a Three-Dimensional Object Producing Method, and a Three-Dimensional Object Producing Apparatus. The inkjet composition includes a unique combination of bisphenol-type methacrylate, a low-viscosity monomer, and an inorganic filler. Additionally, Shiba's silver halide photographic materials exhibit exceptional quality with specialized silver chlorobromide grains and high silver bromide content.

Career Highlights:

Having worked at prestigious organizations like Fuji Photo Film Company, Limited, and the National Patent Development Corporation, Keisuke Shiba has honed his expertise in innovation and patenting processes. His relentless pursuit of excellence has led to the development of cutting-edge technologies in the photography and materials industry.

Collaborations:

Throughout his career, Shiba has collaborated with accomplished colleagues such as Takeshi Hirose and Akio Okumura, fostering a culture of innovation and knowledge-sharing within the industry.

Conclusion:

In conclusion, Keisuke Shiba stands as a testament to the power of ingenuity and perseverance in the world of inventions. His remarkable patents and collaborative efforts have furthered technological advancements and inspired future generations of inventors.