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Hitachinaka, Japan

Vehicle Energy Japan Inc.

USPTO Granted Patents = 73

EPO Patents = 41

Trademarks = 2

Forward Citations = 76

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74 inventors (with patents filed for the assignee):

Keiichiro Ohkawa (22 out of 40 patents)

Ryohhei Nakao (18 out of 20 patents)

Masahiro Yonemoto (11 out of 13 patents)

4. Kei Sakabe (10 out of 25 patents)

5. Osamu Kubota (8 out of 22 patents)

6. Kazunori Ojima (8 out of 9 patents)

7. Sadayuki Aoki (7 out of 23 patents)

8. Shin Yamauchi (6 out of 34 patents)

9. Takanori Yamazoe (6 out of 32 patents)

10. Hitoshi Nishimori (5 out of 6 patents)

11. Shuichi Suzuki (5 out of 70 patents)

12. Kazuaki Urano (5 out of 18 patents)

13. Hironori Sasaki (5 out of 32 patents)

14. Yoshitaka Watahiki (5 out of 5 patents)

15. Fanny Matthey (4 out of 5 patents)

Core Competencies:

Lithium Ion Secondary Battery

Battery Management System

Battery Control Apparatus

Battery Module

Electrode Manufacturing

Battery Energy Storage System

Coating Device

Power Supply Control

Secondary Battery Module

Battery Status Estimation

Rectangular Secondary Battery

Prismatic Secondary Battery

73 patents: Sort by Forward Citations

1. 12506149 - Secondary battery (2025-12-23),

2. 12494511 - Secondary battery (2025-12-09),

3. 12476283 - Electrolyte solution for lithium ion secondary battery (2025-11-18),

4. 12424673 - Battery control apparatus and battery system (2025-09-23),

5. 12420669 - Power supply control device (2025-09-23),

6. 12406983 - Lithium ion secondary battery and method for manufacturing same (2025-09-02),

7. 12381284 - Battery module (2025-08-05),

8. 12315955 - Secondary cell module (2025-05-27),

9. 12315954 - Secondary battery module (2025-05-27),

10. 12315937 - Electrode for secondary battery (2025-05-27),

11. 12283720 - Bus bar, and battery module using same (2025-04-21),

12. 12283667 - Battery management apparatus, battery management method, and battery energy storage system (2025-04-21),

13. 12280394 - Coating die, coating device, coating method, and method for manufacturing secondary cell (2025-04-21),

14. 12272831 - Fastening structure (2025-04-08),

15. 12255319 - Positive electrode for lithium ion secondary batteries, and lithium ion secondary battery (2025-03-18),

Vehicle Energy Japan Inc. is a leading Japanese company specializing in electric and hybrid vehicle technologies. With a mission to promote sustainable transportation, we develop advanced battery systems, powertrain components, and software solutions for electric vehicles. Our expertise lies in providing innovative and reliable solutions that enhance energy efficiency, range, and performance of electric vehicles. For over a decade, we have been at the forefront of the electric mobility revolution, collaborating with major automobile manufacturers and research institutions to drive the adoption of eco-friendly transportation solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

73 Patents

#2 in Hitachinaka

#1,341 in Japan

#9,955 in the World

Hitachinaka, Japan

Vehicle Energy Japan Inc.

Forward Citations = 76

74 inventors:

Keiichiro Ohkawa (22 out of 40 patents)

Ryohhei Nakao (18 out of 20 patents)

Masahiro Yonemoto (11 out of 13 patents)

4. Kei Sakabe (10 out of 25 patents)

5. Osamu Kubota (8 out of 22 patents)

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