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Hitachi Construction Machinery Tierra Co., Ltd.

USPTO Granted Patents = 59

EPO Patents = 86

Forward Citations = 96

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57 inventors (with patents filed for the assignee):

Kiwamu Takahashi (31 out of 48 patents)

Yoshifumi Takebayashi (19 out of 25 patents)

Natsuki Nakamura (18 out of 20 patents)

4. Kazushige Mori (16 out of 23 patents)

5. Takeshi Ishii (12 out of 37 patents)

6. Taihei Maehara (11 out of 11 patents)

7. Masayuki Yunoue (9 out of 13 patents)

8. Hajime Yoshida (9 out of 20 patents)

9. Yasutaka Tsuruga (7 out of 62 patents)

10. Junya Kawamoto (7 out of 33 patents)

11. Tatsuo Takishita (7 out of 12 patents)

12. Takuya Nomura (6 out of 6 patents)

13. Seiichi Kihara (6 out of 10 patents)

14. Daisuke Oka (5 out of 5 patents)

15. Wataru Takagi (4 out of 5 patents)

Core Competencies:

Electrically Driven Construction Machine

Hydraulic Excavator

Battery-Operated Work Machine

Electric Construction Machine

Hydraulic Drive System

Hybrid Work Machine

Small-Sized Construction Machine

Power-Operated Construction Machine

Hydraulic Drive System for Work Machine

Cylinder Device

Grip Heater Apparatus

Construction Machine

59 patents: Sort by Forward Citations

1. 12473716 - Electrically driven construction machine driving system (2025-11-18),

2. 12416135 - Electrically driven hydraulic work machine (2025-09-16),

3. D1087174 - Hydraulic excavator (2025-08-05),

4. 12241224 - Power-operated construction machine (2025-03-04),

5. 12168858 - Battery-operated work machine (2024-12-17),

6. 12018456 - Construction machine (2024-06-25),

7. 11993918 - Electric construction machine (2024-05-28),

8. 11939745 - Electrically driven construction machine (2024-03-26),

9. 11851842 - Hydraulic excavator (2023-12-26),

10. 11821175 - Work machine (2023-11-21),

11. 11753800 - Hydraulic drive system for construction machine (2023-09-12),

12. 11668074 - Electrically driven hydraulic construction machine (2023-06-06),

13. 11542680 - Electric construction machine (2023-01-03),

14. 11499288 - Hydraulic excavator (2022-11-15),

15. 11454002 - Hydraulic drive system for work machine (2022-09-27),

Hitachi Construction Machinery Tierra Co., Ltd. is a leading manufacturer of construction equipment based in Japan. The company specializes in producing highly reliable and efficient machinery for various construction projects. With a strong commitment to innovation and quality, Hitachi Construction Machinery Tierra Co., Ltd. has established itself as a trusted name in the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

59 Patents

#2 in Koka

#1,525 in Japan

#11,955 in the World

Hitachi Construction Machinery Tierra Co., Ltd.

Forward Citations = 96

57 inventors:

Kiwamu Takahashi (31 out of 48 patents)

Yoshifumi Takebayashi (19 out of 25 patents)

Natsuki Nakamura (18 out of 20 patents)

4. Kazushige Mori (16 out of 23 patents)

5. Takeshi Ishii (12 out of 37 patents)

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