Hiroyoshi Ishizaki

This inventor holds 13 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 4 EPO patents. Top assignee: Ricoh Company, Ltd.. Active years: 1991-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyoshi Ishizaki. Retrieved from https://idiyas.com/inventor/hiroyoshi-ishizaki

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

USPTO Granted Patents = 13 (Patent Applications = 2)

% Patents Active = 61.5

CIPO Patents = 1

EPO Patents = 4 (Patent Applications = 8)

Average Co-Inventor Count = 4.5

ph-index = 3

Forward Citations = 70(Granted Patents)

Location History:

Yokohama, JP (1991)
Kanagawa, JP (2014 - 2017)

Company Filing History:

13 out of 28,940

Ricoh Company, Ltd.

patents

Years Active: 1991-2025

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12231607 - Image processing apparatus for performing gradation correction, image forming system, image processing method, and storage medium (2025-02-18),

2. 9767546 - Image inspection apparatus, image inspection system and image inspection method (2017-09-19),

3. 9233551 - Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program (2016-01-12),

4. 9185240 - Image test apparatus, image test system, and image test method (2015-11-10),

5. 9172824 - Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program (2015-10-27),

6. 9088745 - Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program (2015-07-21),

7. 9065938 - Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program (2015-06-23),

8. 8970931 - Image reading device employing calibration plate, apparatus including image reading device, image reading controlling method, and recording medium storing image reading control program (2015-03-03),

9. 8964249 - Image test apparatus, image test system, and image test method for testing a print image based on master image data (2015-02-24),

10. 8848244 - Image inspection method, apparatus, control program overlapping inspection images to obtain positional shift (2014-09-30),

11. 8792128 - Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program (2014-07-29),

12. 8649020 - Color chart (2014-02-11),

13. 5031225 - Character recognition method for recognizing character in an arbitrary (1991-07-09),

Title: The Innovative Mind of Hiroyoshi Ishizaki

Introduction: Hiroyoshi Ishizaki is a renowned inventor hailing from Kanagawa, Japan. His groundbreaking work in the field of technology has earned him a well-deserved reputation as a pioneer in his industry.

Latest Patents: Hiroyoshi Ishizaki holds several patents in the realm of electronics and robotics, showcasing his continuous dedication to pushing the boundaries of innovation. His most recent patents focus on advancements in artificial intelligence and sustainable energy solutions.

Career Highlights: Throughout his illustrious career, Hiroyoshi Ishizaki has worked for leading tech companies, where he has spearheaded numerous projects that have revolutionized the way we interact with technology. His keen eye for detail and passion for creating cutting-edge solutions have set him apart in the competitive world of inventors.

Collaborations: Hiroyoshi Ishizaki has collaborated with top researchers and engineers from around the globe, pooling their collective expertise to tackle some of the most pressing challenges facing the tech industry today. His collaborative spirit and ability to work effectively in diverse teams have been instrumental in the success of many projects.

Conclusion: In conclusion, Hiroyoshi Ishizaki's innovative spirit and relentless drive to create a better future through technology make him a true visionary in the world of inventions. His contributions have not only shaped the industry but have also inspired the next generation of inventors to dream big and think outside the box.

Profile summary based on public USPTO records.