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For the Inventor, By the Inventor

Nasushiobara, Japan

Hiroaki Nakai

This inventor holds 50 USPTO granted patents and 3 published patent applications and 1 EPO patent, primarily in X-Ray Imaging (CPC class A61B). Top assignees: Toshiba Medical Systems Corporation, Canon Medical Systems Corporation, Kabushiki Kaisha Toshiba. Active years: 1993-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Nakai. Retrieved from https://idiyas.com/inventor/hiroaki-nakai

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

USPTO Granted Patents = 50 

% Patents Active = 90.0


Average Co-Inventor Count = 3.1

ph-index = 11

Forward Citations = 593(Granted Patents)

Forward Citations (Not Self Cited) = 575(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Osaka, JP (2000)
  • Yokohama, JP (1993 - 2010)
  • Kanagawa, JP (2005 - 2011)
  • Kawasaki, JP (2011)
  • Tokyo, JP (2006 - 2013)
  • Otawara, JP (2018)
  • Nasushiobara, JP (2015 - 2024)

Company Filing History:

goldMedal21 out of 2,018 
 
Toshiba Medical Systems Corporation
 patents
silverMedal14 out of 1,350 
 
Canon Medical Systems Corporation
 patents
bronzeMedal13 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
4. 3 out of 7,654 
 
Renesas Electronics Corporation
 patents
5. 1 out of 42,731 
 
Hitachi, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1993-2024

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Areas of Expertise:
X-Ray Imaging
Photon Counting Detector
Computed Tomography
Medical Image Processing
Radiation Detection
Sensitivity Correction
Image Processing
Radiation Diagnosis
X-Ray CT Apparatus
Data Transfer Method
Cherenkov Light Detection
Medical Diagnostic
50 patents (USPTO):Explore Patents
1. 12004887 - Radiation diagnosis device with a first detector detecting Cherenkov light and a second detector detecting energy information of radiation (2024-06-11),
2. 11559269 - X-ray imaging apparatus, medical information processing apparatus, X-ray detector, and correction method of X-ray detector (2023-01-24),
3. 11543543 - Radiation detector and radiation diagnosis apparatus (2023-01-03),
4. 11327031 - Photon counting X-ray CT apparatus (2022-05-10),
5. 11207037 - Radiation detector and X-ray CT apparatus (2021-12-28),
6. 11076823 - X-ray CT apparatus including a photon-counting detector and circuitry configured to set a control parameter corresponding to a position of each detecting element in the photon-counting detector (2021-08-03),
7. 10969503 - Sensitivity correction method and photon counting detector (2021-04-06),
8. 10959684 - X-ray computed tomography apparatus and x-ray detector (2021-03-30),
9. 10769822 - X-ray CT apparatus (2020-09-08),
10. 10743834 - X-ray image diagnostic apparatus and method (2020-08-18),
11. 10667774 - X-ray CT apparatus (2020-06-02),
12. 10646186 - X-ray CT apparatus, information processing device and information processing method (2020-05-12),
13. 10497152 - X-ray CT apparatus and reconstruction processing apparatus (2019-12-03),
14. 10451568 - Photon counting X-ray CT apparatus (2019-10-22),
15. 10338012 - Photon counting detector and X-ray computed tomography (CT) apparatus (2019-07-02),

Title: Hiroaki Nakai - Innovative Inventor from Nasushiobara

Introduction: Hiroaki Nakai is a renowned inventor hailing from Nasushiobara, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Hiroaki Nakai holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous innovation and forward-thinking approach.

Career Highlights: With over two decades of experience in the tech industry, Hiroaki Nakai has worked with leading research institutions and universities to develop cutting-edge solutions that have revolutionized the way we interact with technology.

Collaborations: Throughout his career, Hiroaki Nakai has collaborated with top companies in Japan and internationally, fostering a culture of innovation and knowledge-sharing to drive progress in the tech sector.

Conclusion: Hiroaki Nakai's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor, shaping the future of technology in Japan and beyond.

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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