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Kosai-shi, Japan

Panasonic Ev Energy Co., Ltd.

USPTO Granted Patents = 107

EPO Patents = 11

Trademarks = 1

Forward Citations = 767

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77 inventors (with patents filed for the assignee):

Toshiaki Nakanishi (16 out of 42 patents)

Shuhei Marukawa (12 out of 26 patents)

Norito Yamabe (12 out of 13 patents)

4. Toyohiko Eto (11 out of 62 patents)

5. Masahiro Misu (9 out of 12 patents)

6. Yusai Murakami (9 out of 16 patents)

7. Katsunori Maegawa (8 out of 12 patents)

8. Jun Okuda (8 out of 8 patents)

9. Motoyoshi Okumura (7 out of 45 patents)

10. Kunio Kanamaru (7 out of 18 patents)

11. Hirofumi Yudahira (7 out of 13 patents)

12. Takuma Iida (6 out of 24 patents)

13. Kouta Togashi (6 out of 6 patents)

14. Keiichi Minamiura (5 out of 22 patents)

15. Masahiko Suzuki (5 out of 63 patents)

Core Competencies:

Battery Pack

Secondary Battery

Battery Cooling System

Nickel-Metal Hydride Battery

Temperature Detecting Device

Charging Control Method

Abnormality Detection

Recycling Method

Electric Vehicle

Power Supply Device

Electrode Unit Manufacturing

State of Charge Estimation

107 patents: Sort by Forward Citations

1. 8809743 - Heater with temperature detecting device, battery structure with heater, and heater unit (2014-08-19),

2. 8802260 - Separation method of secondary battery (2014-08-12),

3. 8795862 - Battery pack (2014-08-05),

4. 8785014 - Nickel-metal hydride secondary battery module and secondary battery module manufacturing method (2014-07-22),

5. 8742723 - Battery pack assembled with recycled batteries and method of assembly (2014-06-03),

6. 8741459 - State judging device and control device of secondary battery (2014-06-03),

7. 8701810 - Battery pack (2014-04-22),

8. 8674702 - Apparatus for detecting a state of secondary battery (2014-03-18),

9. 8555695 - Current collector shape adjusting device (2013-10-15),

10. 8521458 - Apparatus and method for detecting charged state of electric storage device (2013-08-27),

11. 8483987 - Circuit with control function and test method thereof (2013-07-09),

12. 8470470 - Battery pack manufacturing method, and battery pack (2013-06-25),

13. 8463562 - Device and method for detecting abnormality of electric storage device (2013-06-11),

14. 8432058 - Power supply device (2013-04-30),

15. 8395072 - Resistance welding quality determination method and resistance welding quality determination apparatus (2013-03-12),

Panasonic EV Energy Co., Ltd. is a subsidiary of Panasonic Corporation specialized in the development, production, and sale of lithium-ion batteries for electric vehicles (EVs). With advanced technology and a strong commitment to sustainability, Panasonic EV Energy Co., Ltd. has become a leading player in the EV battery market. They offer innovative battery solutions that contribute to the growth of the electric mobility industry.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

107 Patents

#1 in Kosai-shi

#1,053 in Japan

#7,133 in the World

Kosai-shi, Japan

Panasonic Ev Energy Co., Ltd.

Forward Citations = 767

77 inventors:

Toshiaki Nakanishi (16 out of 42 patents)

Shuhei Marukawa (12 out of 26 patents)

Norito Yamabe (12 out of 13 patents)

4. Toyohiko Eto (11 out of 62 patents)

5. Masahiro Misu (9 out of 12 patents)

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