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Hitachi Engineering Services Co., Ltd.

USPTO Granted Patents = 30

% Expired Patents = 53.3

EPO Patents = 8

Forward Citations = 316

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107 inventors (with patents filed for the assignee):

Yutaka Suzuki (3 out of 44 patents)

Tetsuya Matsui (3 out of 35 patents)

Masahiro Koike (3 out of 24 patents)

4. Kazuhiro Suzuki (3 out of 73 patents)

5. Kei Takenaka (3 out of 11 patents)

6. Yasuhiko Sasaki (3 out of 49 patents)

7. Mitsuru Odakura (3 out of 6 patents)

8. Kojirou Kodaira (3 out of 5 patents)

9. Katsumi Isaka (3 out of 3 patents)

10. Kenji Tayama (3 out of 3 patents)

11. Kenji Kumasaka (3 out of 4 patents)

12. Yuuji Adachi (3 out of 3 patents)

13. Yoshimasa Kiuchi (3 out of 4 patents)

14. Wataru Sasaki (2 out of 28 patents)

15. Tadahiro Kimura (2 out of 7 patents)

Core Competencies:

Microorganism Testing

Power Storage

Electric Machinery

Eddy Current Testing

Superconducting Magnet

Radiation Shielding

Inundation Simulation

Adhesive-Free Laminate

Ultrasonic Testing

Remote Monitoring

Wind Power Generation

Threat Detection

30 patents: Sort by Forward Citations

1. 8889349 - Method for testing microorganism or the like and testing apparatus therefor (2014-11-18),

2. 8709193 - Method of manufacturing adhesive-free laminate of aramid paper and polyphenylene sulfide film, and insulation material and insulation structure for rotating electric machinery (2014-04-29),

3. 8575886 - Power storage apparatus of power generation system and operating method of power storage apparatus (2013-11-05),

4. 8423681 - Control apparatus for process input-output device (2013-04-16),

5. 8409850 - Microorganism testing device (2013-04-02),

6. 8404480 - Microorganism testing device and microorganism testing chip (2013-03-26),

7. 8334606 - Wind power generation system of a type provided with power storage system (2012-12-18),

8. 8248204 - Tag detecting system, moving object detecting method, and entrance/exit management system (2012-08-21),

9. 8095695 - Control apparatus for process input-output device (2012-01-10),

10. 7967941 - Adhesive-free aramid-polyester laminate, method of manufacturing the same and apparatus for manufacturing the same (2011-06-28),

11. 7961067 - Superconducting magnet apparatus and magnetic resonance imaging apparatus (2011-06-14),

12. 7957945 - Inundation simulator and program (2011-06-07),

13. 7880574 - Superconducting magnet and magnetic resonance imaging apparatus using the same (2011-02-01),

14. 7872472 - Eddy current testing apparatus and eddy current testing method (2011-01-18),

15. 7841237 - Ultrasonic testing apparatus for turbine forks and method thereof (2010-11-30),

Company Overview

Hitachi Engineering Services Co., Ltd. is a prominent player in the engineering and technology sector, specializing in the development and implementation of advanced engineering solutions. The company focuses on a variety of domains, including infrastructure development, energy systems, and industrial automation. With a commitment to innovation, Hitachi Engineering Services leverages cutting-edge technologies to enhance operational efficiency and sustainability across various industries, primarily serving clients in Japan and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

30 Patents

#15 in Ibaraki

#2,306 in Japan

#21,888 in the World

Hitachi Engineering Services Co., Ltd.

Forward Citations = 316

107 inventors:

Yutaka Suzuki (3 out of 44 patents)

Tetsuya Matsui (3 out of 35 patents)

Masahiro Koike (3 out of 24 patents)

4. Kazuhiro Suzuki (3 out of 73 patents)

5. Kei Takenaka (3 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Engineering Services Co., Ltd.. Retrieved from https://idiyas.com/company/hitachi-engineering-services-company

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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