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Arkray, Inc.

USPTO Granted Patents = 569

% Expired Patents = 14.6

CIPO Patents = 2

EPO Patents = 467

Trademarks = 33

Forward Citations = 6,153

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373 inventors (with patents filed for the assignee):

Satoshi Yonehara (38 out of 43 patents)

Koji Katsuki (24 out of 24 patents)

Yasunori Shiraki (23 out of 23 patents)

4. Daisuke Matsumoto (22 out of 23 patents)

5. Yoshiharu Sato (22 out of 25 patents)

6. Shigeru Kitamura (21 out of 21 patents)

7. Masahiro Fukuzawa (19 out of 19 patents)

8. Naotsugu Onuma (18 out of 18 patents)

9. Koji Sode (17 out of 46 patents)

10. Shinya Nakajima (17 out of 20 patents)

11. Yasuhide Kusaka (17 out of 17 patents)

12. Mitsuharu Hirai (16 out of 16 patents)

13. Hideaki Yamaoka (15 out of 15 patents)

14. Tokuo Kasai (14 out of 15 patents)

15. Tetsuya Sakata (14 out of 15 patents)

Core Competencies:

Biosensor

Measurement System

Analysis Device

Liquid Chromatography

Sample Analysis

Electrochemical Sensor

Particle Recovery

Optical Element

Urine Analyzer

Fluids Delivery

Nucleic Acid Aptamer

Glycoprotein Measurement

569 patents: Sort by Forward Citations

1. 12754452 - Power source device, electrophoresis device, power source device control method, and electrophoresis device control method (2026-10-06),

2. 12751651 - Measurement device for a measurement target component contained in a liquid sample (2026-10-06),

3. 12736548 - Method for stabilizing hemoglobin (2026-09-15),

4. 12730086 - Measurement device (2026-09-08),

5. 12721551 - Method for electrochemically measuring oxidoreductase using a biosensor, and biosensor used therein (2026-09-01),

6. D1140081 - Specimen analysis apparatus (2026-08-04),

7. 12699081 - Method of measuring stable hemoglobin A1c and measurement device therefor (2026-08-04),

8. 12693288 - Quality control substance for use in the analysis of erythrocytes (2026-07-28),

9. 12661042 - Measurement device (2026-06-23),

10. 12650386 - Test strip holder and test strip discharging mechanism (2026-06-09),

11. 12644860 - Method for analyzing sample comprising hemoglobin A2 by capillary electrophoresis (2026-06-02),

12. D1124009 - Display screen with animated graphical user interface (2026-04-28),

13. 12613193 - Measurement system and measurement method (2026-04-28),

14. D1122969 - Display screen with animated graphical user interface (2026-04-21),

15. D1122952 - Display screen with animated graphical user interface (2026-04-21),

Company Overview

Arkray, Inc., based in Kyoto, Japan, specializes in the development and manufacturing of advanced biosensor technology. The company focuses on creating innovative measurement systems and analysis devices that enhance sample analysis capabilities. With expertise in liquid chromatography and electrochemical sensors, Arkray is dedicated to improving healthcare diagnostics and monitoring. Their technologies are pivotal in various applications, including medical devices that support accurate and efficient health assessments.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

569 Patents

#20 in Kyoto 615-0031

#354 in Japan

#1,718 in the World

Arkray, Inc.

Forward Citations = 6,153

373 inventors:

Satoshi Yonehara (38 out of 43 patents)

Koji Katsuki (24 out of 24 patents)

Yasunori Shiraki (23 out of 23 patents)

4. Daisuke Matsumoto (22 out of 23 patents)

5. Yoshiharu Sato (22 out of 25 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Arkray, Inc.. Retrieved from https://idiyas.com/company/arkray

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

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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