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Hitachi, Ltd.

USPTO Granted Patents = 42,488

CIPO Patents = 100

EPO Patents = 2,338

Trademarks = 14

Forward Citations = 626,549

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27,750 inventors (with patents filed for the assignee):

Akira Yamamoto (276 out of 416 patents)

Yoshiaki Eguchi (201 out of 213 patents)

Harukazu Miyamoto (182 out of 228 patents)

4. Kiyoo Itoh (181 out of 222 patents)

5. Hiroyuki Minemura (180 out of 223 patents)

6. Takeshi Maeda (168 out of 210 patents)

7. Toshimichi Minowa (163 out of 170 patents)

8. Masayuki Yamamoto (151 out of 166 patents)

9. Naoto Matsunami (139 out of 140 patents)

10. Yasutomo Yamamoto (133 out of 134 patents)

11. Motoyasu Terao (133 out of 179 patents)

12. Yasunori Kaneda (132 out of 133 patents)

13. Katsumi Kondo (131 out of 156 patents)

14. Koji Hirata (130 out of 255 patents)

15. Yuichiro Nakaya (125 out of 127 patents)

Core Competencies:

Data Analysis

Image Processing

Reinforcement Learning

Semiconductor Manufacturing

Corrosive Environment Monitoring

Additive Manufacturing

Sensor Fusion

Power Conversion

Biometric Authentication

Hydrogen Production

Artificial Intelligence

Communication Systems

42,488 patents: Sort by Forward Citations

1. 12493567 - Storage apparatus and control method for storage apparatus (2025-12-09),

2. 12492101 - Elevator apparatus (2025-12-09),

3. 12491911 - Autonomous travel control system (2025-12-09),

4. 12488520 - Consensus building support system (2025-12-02),

5. 12488468 - Image processing apparatus and method for highlighting pixels based on regional intensity value distribution (2025-12-02),

6. 12488258 - Data analysis and training data, generation device, system, method, and generation program (2025-12-02),

7. 12487973 - Update method and database update apparatus (2025-12-02),

8. 12484267 - Semiconductor device and method of manufacturing semiconductor device (2025-11-25),

9. 12483267 - Data compression system and data compression method (2025-11-25),

10. 12483087 - Rotary electrical machine (2025-11-25),

11. 12481921 - Uncertainty-aware continuous control system based on reinforcement learning (2025-11-25),

12. 12481779 - Query processing system and method (2025-11-25),

13. 12476024 - Superconducting wire, method for manufacturing superconducting wire, and MRI device (2025-11-18),

14. 12475601 - Method to compute drift in image data before ml model inference (2025-11-18),

15. 12475195 - System and method for generating candidate idea (2025-11-18),

Hitachi, Ltd. is a Japanese multinational conglomerate company known for its diverse range of products and services including information technology, consumer electronics, and industrial machinery. The company was founded in 1910 and has since grown to become one of the largest and most respected companies in the world. Hitachi is committed to creating innovative solutions that contribute to society's sustainability and well-being.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

42,488 Patents

#4 in Tokyo

#4 in Japan

#11 in the World

Hitachi, Ltd.

Forward Citations = 626,549

27,750 inventors:

Akira Yamamoto (276 out of 416 patents)

Yoshiaki Eguchi (201 out of 213 patents)

Harukazu Miyamoto (182 out of 228 patents)

4. Kiyoo Itoh (181 out of 222 patents)

5. Hiroyuki Minemura (180 out of 223 patents)

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