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Horiba, Ltd.

USPTO Granted Patents = 725

% Expired Patents = 23.7

CIPO Patents = 1

EPO Patents = 192

Trademarks = 36

Forward Citations = 4,881

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651 inventors (with patents filed for the assignee):

Katsuhiko Tomita (26 out of 26 patents)

Tetsuji Yamaguchi (25 out of 25 patents)

Yasukazu Iwamoto (20 out of 22 patents)

4. Ichiro Asano (20 out of 22 patents)

5. Juichiro Ukon (15 out of 19 patents)

6. Hiroshi Nakamura (15 out of 15 patents)

7. Tetsuya Mori (14 out of 23 patents)

8. Yoshinori Otsuki (14 out of 14 patents)

9. Tatsuo Igushi (14 out of 14 patents)

10. Hiroji Kohsaka (14 out of 15 patents)

11. Yoshiaki Togawa (14 out of 30 patents)

12. Masayuki Adachi (13 out of 13 patents)

13. Shigeyuki Akiyama (13 out of 15 patents)

14. Katsumi Uratani (13 out of 13 patents)

15. Haruo Kotani (13 out of 19 patents)

Core Competencies:

Radiation Detection

Exhaust Gas Analyzer

Gas Analysis Method

Particle Size Distribution

Vehicle Testing System

Semiconductor Laser

Brake Dust Measurement

Sample Analysis Device

Calibration Method

Analysis Program

Optical Cell

Automated Driving

725 patents: Sort by Forward Citations

1. 12768762 - Particle size distribution measurement device, particle size distribution measurement method, and program for particle size distribution measurement device (2026-10-20),

2. 12754118 - Particle analysis device (2026-10-06),

3. 12748043 - Analysis device and analysis method (2026-09-29),

4. 12736456 - Centrifugal sedimentation-type particle diameter distribution measurement device (2026-09-15),

5. 12716816 - Test system, test method, and non-transitory computer readable medium for test system (2026-08-25),

6. 12700250 - Particle image analysis apparatus, particle image analysis system, particle image analysis method, and program for particle image analysis apparatus (2026-08-04),

7. 12691475 - Contaminant removal device and contaminant removal method (2026-07-28),

8. 12680914 - Exhaust gas sampling device, exhaust gas analysis system, exhaust gas sampling method, and program for exhaust gas sampling device (2026-07-14),

9. 12663354 - Dilution mechanism, particle size distribution measurement system, particle size distribution measurement method, and program for particle size distribution measurement (2026-06-23),

10. 12640538 - Semiconductor laser element, semiconductor laser device, semiconductor laser device manufacturing method, and gas analysis device (2026-05-26),

11. 12636932 - Testing system, testing method, and program recording medium for testing system (2026-05-26),

12. 12631533 - Element analysis device, mounting jig, and mounting method (2026-05-19),

13. 12625005 - Radiation temperature measurement device and radiation temperature measurement method (2026-05-12),

14. 12618987 - Radiation detection element, radiation detector, radiation detection device, and method for manufacturing radiation detection element (2026-05-05),

15. 12612060 - On-road driving test evaluation method, vehicle test system, and computer readable storage medium for an on-road driving test evaluation program (2026-04-28),

Company Overview

Horiba, Ltd., headquartered in Kyoto, Japan, specializes in the development and manufacturing of advanced gas analysis devices. The company is recognized for its expertise in various technological domains, including radiation detection, exhaust gas analysis, and particle size distribution. Horiba's innovative solutions cater to diverse industries, including automotive testing and semiconductor manufacturing, enhancing efficiency and compliance with environmental standards. Their commitment to precision and quality positions them as a leader in analytical and measurement instrumentation.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

725 Patents

#17 in Kyoto 615-0031

#285 in Japan

#1,378 in the World

Horiba, Ltd.

Forward Citations = 4,881

651 inventors:

Katsuhiko Tomita (26 out of 26 patents)

Tetsuji Yamaguchi (25 out of 25 patents)

Yasukazu Iwamoto (20 out of 22 patents)

4. Ichiro Asano (20 out of 22 patents)

5. Juichiro Ukon (15 out of 19 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Horiba, Ltd.. Retrieved from https://idiyas.com/company/horiba

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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