For the Inventor, By the Inventor

Enter assignee name

Yokogawa Electric Works, Ltd.

Calculating rank

USPTO Granted Patents = 48

Trademarks = 1

Forward Citations = 817

Loading Chart...

Loading Chart...

88 inventors (with patents filed for the assignee):

Keiki Yamaguchi (4 out of 20 patents)

Yutaka Wakasa (4 out of 4 patents)

Hisayuki Uchiike (4 out of 5 patents)

4. Koju Kataoka (4 out of 4 patents)

5. Nobuo Kaieda (4 out of 4 patents)

6. Yoshio Kurita (4 out of 4 patents)

7. Ichizo Ito (4 out of 4 patents)

8. Toshio Aga (4 out of 4 patents)

9. Hisaya Fujita (3 out of 3 patents)

10. Setsuo Sato (3 out of 3 patents)

11. Akira Sumi (3 out of 3 patents)

12. Toshitsugu Ueda (3 out of 3 patents)

13. Yukitake Shibata (3 out of 3 patents)

14. Tetsuo Ando (3 out of 3 patents)

15. Naoki Seki (2 out of 6 patents)

Core Competencies:

Ultrasonic Diagnostic Equipment

Linear Array Ultrasonic Transducer

Vortex Shedding Flow Meter

Moisture Content Measurement

Pneumatic Converter

Ultrasonic Diagnostic Method

Force Transducer

Vibration Type Transducer

Oxygen Gas Analyzer

Differential Pressure Transducer

Process Control System

Analog Signal Processing

48 patents: Sort by Forward Citations

1. 4392379 - Ultrasonic diagnostic equipment (1983-07-12),

2. 4385255 - Linear array ultrasonic transducer (1983-05-24),

3. 4364056 - Interactive graphic system (1982-12-14),

4. 4362061 - Vortex shedding flow measuring device (1982-12-07),

5. 4345150 - Method and apparatus for measuring the moisture content of paper (1982-08-17),

6. 4336819 - Pneumatic converter (1982-06-29),

7. 4336494 - Insulation resistance tester (1982-06-22),

8. 4319489 - Ultrasonic diagnostic method and apparatus (1982-03-16),

9. 4299122 - Force transducer (1981-11-10),

10. 4297872 - Vibration type transducer (1981-11-03),

11. 4280064 - Signal isolator (1981-07-21),

12. 4258565 - Force detector (1981-03-31),

13. 4257275 - Velocity detecting apparatus (1981-03-24),

14. 4248098 - Flow metering apparatus (1981-02-03),

15. 4238844 - Displaced position detecting device (1980-12-09),

Company Overview

Yokogawa Electric Works, Ltd., headquartered in Tokyo, Japan, specializes in advanced measurement, control, and information technologies. The company develops a range of products including ultrasonic diagnostic equipment, vortex shedding flow meters, and various gas analyzers. Its expertise extends to analog signal processing and process control systems, making it a key player in industries such as oil and gas, chemicals, and pharmaceuticals. Yokogawa's innovative solutions enhance operational efficiency and safety across diverse applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

48 Patents

#815 in Tokyo

#1,756 in Japan

#14,558 in the World

Yokogawa Electric Works, Ltd.

Forward Citations = 817

88 inventors:

Keiki Yamaguchi (4 out of 20 patents)

Yutaka Wakasa (4 out of 4 patents)

Hisayuki Uchiike (4 out of 5 patents)

4. Koju Kataoka (4 out of 4 patents)

5. Nobuo Kaieda (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yokogawa Electric Works, Ltd.. Retrieved from https://idiyas.com/company/yokogawa-electric-works

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]

Loading…