Hirokazu Ishii

This inventor holds 81 USPTO granted patents and 1 published patent application and 7 EPO patents, primarily in Image Processing (CPC class G03G15-1675). Top assignees: Ricoh Company, Ltd., Canon Kabushiki Kaisha, Hitachi, Ltd.. Active years: 1996-2023.

USPTO Granted Patents = 81 (Patent Applications = 1)

% Patents Active = 72.8

EPO Patents = 7 (Patent Applications = 8)

Average Co-Inventor Count = 2.2

ph-index = 10

Forward Citations = 420(Granted Patents)

Forward Citations (Not Self Cited) = 227(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Akabane-nishi, JP (1998)
Minamiashigara, JP (2011)
Kawasaki, JP (2012 - 2013)
Yokohama, JP (2011 - 2014)
Kanagawa, JP (2008 - 2022)
Tokyo, JP (1996 - 2023)
Chofu, JP (2013 - 2023)

Company Filing History:

Canon Kabushiki Kaisha

Hitachi Computer Peripherals Co., Ltd.

patents

5. 1 out of 255

Japan Aerospace Exploration Agency

patents

where one patent can have more than one assignee

Years Active: 1996-2023

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Areas of Expertise:

Image Capturing Apparatus

Control Method

Focus Detection

Image Forming

Information Processing

Storage System

Queue Control

Transfer Bias

Image Pickup

Image Processing

Detection Apparatus

Recording Medium

81 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11838628 - Image capturing apparatus, control method therefor, and storage medium (2023-12-05),

2. 11653091 - Focus detecting apparatus and method using multi-AF frame, and image pickup apparatus (2023-05-16),

3. 11568521 - Apparatus, method thereof, and recording medium (2023-01-31),

4. 11425297 - Image capturing apparatus and control method thereof (2022-08-23),

5. 11412129 - Image capturing apparatus, control method therefor, and storage medium (2022-08-09),

6. 11301188 - Information processing apparatus, information processing method, and printing apparatus (2022-04-12),

7. 11237770 - Storage system and queue control method of storage system (2022-02-01),

8. 10986261 - Image capturing apparatus and control method thereof (2021-04-20),

9. 10523860 - Focus detection device, control method thereof, and image capture apparatus (2019-12-31),

10. 10462352 - Focus detection apparatus and image pickup apparatus (2019-10-29),

11. 10295948 - Image forming apparatus (2019-05-21),

12. 10281848 - Image forming apparatus and image forming method (2019-05-07),

13. 10185255 - Image forming apparatus and image forming method for controlling a secondary transfer bias according to recording sheet type (2019-01-22),

14. 10073386 - Image forming apparatus (2018-09-11),

15. 10067454 - Image forming apparatus (2018-09-04),

Title: Hirokazu Ishii: Pioneering Inventor from Tokyo

Introduction: Hirokazu Ishii is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hirokazu Ishii holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: Throughout his illustrious career, Ishii has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Ishii has collaborated with top researchers and engineers from around the world, fostering a culture of innovation and knowledge-sharing that has led to numerous successful inventions and patents.

Conclusion: Hirokazu Ishii's dedication to pushing the boundaries of technology and his passion for creating solutions to complex problems make him a true pioneer in the world of invention.