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For the Inventor, By the Inventor

Chigasaki, Japan

Hiroyuki Sakai

This inventor holds 125 USPTO granted patents and 5 published patent applications and 5 EPO patents, primarily in Image Processing (CPC class G06T11-60). Top assignees: Canon Kabushiki Kaisha, Hoya Corporation, Hitachi, Ltd.. Active years: 1985-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Sakai. Retrieved from https://idiyas.com/inventor/hiroyuki-sakai

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

USPTO Granted Patents = 125 

% Patents Active = 86.4

 

Average Co-Inventor Count = 2.6

ph-index = 17

Forward Citations = 985(Granted Patents)

Forward Citations (Not Self Cited) = 922(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Akishima, JP (1985 - 1987)
  • Fussa, JP (1989 - 1992)
  • Ebina, JP (1996)
  • Ibaraki, JP (1993 - 1997)
  • Nerima-ku, JP (1997)
  • Yokohama, JP (1988 - 1999)
  • Iwatsuki, JP (2004)
  • Saitama, JP (2009 - 2017)
  • Kariya, JP (2015 - 2018)
  • Kashiwa, JP (2021 - 2022)
  • Kanagawa, JP (2022 - 2023)
  • Tokyo, JP (1988 - 2024)
  • Chigasaki, JP (2012 - 2024)
  • Chiba, JP (2021 - 2024)
  • Wako, JP (2022 - 2024)

Company Filing History:

goldMedal76 out of 93,085 
 
Canon Kabushiki Kaisha
 patents
silverMedal19 out of 2,569 
 
Hoya Corporation
 patents
bronzeMedal9 out of 42,740 
 
Hitachi, Ltd.
 patents
4. 9 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
5. 4 out of 1,650 
 
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
 patents
6. 3 out of 64 
 
Nagano Keiki Co., Ltd.
 patents
7. 2 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents
8. 2 out of 134 
 
Ramtron International Corporation
 patents
9. 2 out of 402 
 
Resonac Corporation
 patents
10. 1 out of 9 
 
Iida Industry Co., Ltd.
 patents
11. 1 out of 256 
 
Research Development Corporation of Japan
 patents
12. 1 out of 1 
 
School Juridical Person Seikei Gakuen
 patent
where one patent can have more than one assignee

Years Active: 1985-2026

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Areas of Expertise:
Image Processing
Compression Efficiency
Color Reduction
Embedded Information
Inspection Workload
High Object Reproducibility
Light Source
Vehicle Body Structures
Multiplexed Information
Auto White Balance
Sharpness Improvement
125 patents (USPTO):Explore Patents
1. 12709083 - ADHESIVE FILM FOR CIRCUIT CONNECTION, AND CIRCUIT CONNECTION STRUCTURE AND MANUFACTURING METHOD THEREFOR (2026-08-18),
2. 12530735 - Image processing apparatus that improves compression efficiency of image data, method of controlling same, and storage medium (2026-01-20),
3. 12499592 - Image processing apparatus for generating color-reduced image, control method thereof, and storage medium (2025-12-16),
4. 12418622 - Image processing apparatus capable of generating color-reduced image with high object reproducibility, control method for image processing apparatus, and storage medium (2025-09-16),
5. 12356085 - Mobile terminal having a light source and an application to extract embedded information from an illuminated printed image and method (2025-07-08),
6. 12277700 - Inspection apparatus capable of reducing inspection workload, method of controlling inspection apparatus, and storage medium (2025-04-14),
7. 12124751 - Information processing apparatus, method, and non-transitory computer-readable storage medium storing program (2024-10-22),
8. 11960839 - Cause-effect sentence analysis device, cause-effect sentence analysis system, program, and cause-effect sentence analysis method (2024-04-16),
9. 11943547 - Information processing apparatus that illuminates a printed image during capture when embedded information is to be processed, information processing system, information processing method, and storage medium (2024-03-26),
10. 11924390 - Apparatus, method, and storage medium for performing color reduction processing (2024-03-05),
11. 11884331 - Center pillar manufacturing method (2024-01-30),
12. 11849097 - Storage medium, information processing apparatus, and method for compressing image printing data that includes values corresponding to special ink printing (2023-12-19),
13. 11740840 - Storage medium, information processing apparatus, and control method (2023-08-29),
14. 11695887 - Image processing apparatus, method of controlling the same, and storage medium (2023-07-04),
15. 11691675 - Vehicle body reinforcement structure (2023-07-04),

Title: The Innovative Journey of Hiroyuki Sakai

Introduction: Hiroyuki Sakai, a distinguished inventor hailing from Chigasaki, Japan, has made significant contributions to the field of technology with his groundbreaking inventions and patents.

Latest Patents: Hiroyuki Sakai holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to innovation.

Career Highlights: Throughout his illustrious career, Hiroyuki Sakai has worked with renowned research institutions and leading technology companies to develop cutting-edge solutions that have revolutionized various industries.

Collaborations: Hiroyuki Sakai has collaborated with top engineers, scientists, and inventors from around the world, fostering a culture of creativity and excellence in all his projects.

Conclusion: Hiroyuki Sakai's passion for innovation and his relentless pursuit of technological advancement have solidified his reputation as a visionary inventor, inspiring the next generation of innovators to push the boundaries of what is possible.

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]
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