Yoshio Ishii

This inventor holds 57 USPTO granted patents and 1 published patent application and 4 EPO patents, primarily in Silver Halide Photography (CPC class 4305). Top assignees: Fuji Photo Film Company, Limited, Fujifilm Corporation. Active years: 1990-2023.

USPTO Granted Patents = 57 (Patent Applications = 1)

% Patents Active = 70.2

EPO Patents = 4

Average Co-Inventor Count = 3.4

ph-index = 10

Forward Citations = 326(Granted Patents)

Forward Citations (Not Self Cited) = 317(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Ashigara, JP (2001 - 2008)
Kanagawa, JP (1990 - 2011)
Minami-ashigara, JP (1993 - 2011)
Fujinomiya, JP (2012 - 2014)
Shizuoka, JP (2015)
Ashigarakami-gun, JP (2021 - 2023)

Company Filing History:

40 out of 16,458

Fuji Photo Film Company, Limited

Years Active: 1990-2023

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Areas of Expertise:

Silver Halide

Color Photosensitive Material

Image-Forming Method

Optical Device

Thermal Transfer

Heat-Sensitive Transfer

Photographic Material

Electrochromic Device

Functional Device

Density Changing Element

Liquid Crystal Display

Resin Film

57 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11759998 - Method for producing gelatin formed body and gelatin formed body (2023-09-19),

2. 10953131 - Method for producing calcium phosphate molded article, calcium phosphate molded article, and material for transplantation (2021-03-23),

3. 9040129 - Protective film of polarizer, polarizer and method for producing it, and liquid crystal display device (2015-05-26),

4. 8859060 - Protective film of polarizer, polarizer and liquid crystal display device (2014-10-14),

5. 8394309 - Resin film and method for producing it, polarizer and liquid crystal display device (2013-03-12),

6. 8337962 - Resin film and method for producing it, polarizer and liquid crystal display device (2012-12-25),

7. 7932210 - Image-forming method using thermal transfer system (2011-04-26),

8. 7863219 - Heat-sensitive transfer image-receiving sheet and method for producing heat-sensitive transfer image-receiving sheet (2011-01-04),

9. 7858556 - Heat-sensitive transfer image-receiving sheet (2010-12-28),

10. 7816064 - Image-forming method using heat-sensitive transfer system (2010-10-19),

11. 7485402 - Heat-sensitive transfer image-receiving sheet and method for producing heat-sensitive transfer image-receiving sheet (2009-02-03),

12. 7474453 - Control apparatus for optical density changing element (2009-01-06),

13. 7446923 - Semiconductor, functional device, electrochromic device, optical device, and image-taking unit (2008-11-04),

14. 7419314 - Optical density changing element, optical element and photographing unit (2008-09-02),

15. 7384731 - Method for forming color image and silver halide color photosensitive material used for the same (2008-06-10),

Title: Yoshio Ishii - Innovative Inventor from Kanagawa, Japan

Introduction: Yoshio Ishii is a renowned inventor hailing from Kanagawa, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Yoshio Ishii holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to innovation.

Career Highlights: Throughout his illustrious career, Yoshio Ishii has worked with leading research institutions and tech companies, spearheading projects that have revolutionized the way we interact with technology on a daily basis.

Collaborations: Ishii has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of creativity and excellence in all his projects. His ability to work in diverse teams has led to the development of cutting-edge solutions that have had a lasting impact on society.

Conclusion: Yoshio Ishii's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in the global tech community. His work continues to inspire future generations of inventors to push the boundaries of what is possible in the world of technology.