Introduction: Koji Takahata, based in Toyota, Japan, is a prominent inventor known for his significant contributions to battery technology. With a remarkable portfolio of 45 patents, Takahata has been at the forefront of developing innovative solutions that enhance the efficiency and performance of batteries.

Latest Patents: Among his recent innovations, Takahata has developed a negative electrode designed to lower the resistance of a battery. This electrode includes a negative electrode current collector made of copper or a copper alloy, coated with chromium to maintain optimal performance. His specifications detail a coating amount of chromium between 5 µg/dm² and 60 µg/dm², and a blackness of the negative electrode mixture that ranges from 3 to 30. His patent indicates that these two parameters must satisfy the equation 60 ≤ A × B ≤ 900, where A represents the coating amount, and B represents the blackness value.

Additionally, he has contributed to the design of a nonaqueous electrolyte secondary battery. This innovation is characterized by an initial charging and discharging treatment on an assembly containing an electrode body and a nonaqueous electrolyte. This electrolyte incorporates a compound represented by the general formula A[PX(CO)], comprising 1.1 mass % to 1.2 mass % of the electrolyte's total mass, ensuring enhanced performance.

Career Highlights: Throughout his career, Koji Takahata has worked with esteemed companies including Toyota Motor Corporation and Kansai Paint Company, Ltd. His blend of practical experience and innovative thinking has allowed him to make substantial contributions to the field of battery technology and beyond.

Collaborations: Takahata has collaborated with notable colleagues such as Hideki Sano and Akihiro Ochiai. These partnerships have fostered a creative environment that encourages cutting-edge research and development.

Conclusion: Koji Takahata stands out as a leading inventor in the battery technology domain, with a robust portfolio of patents reflecting his innovative spirit. His work continues to influence the industry, paving the way for advancements in battery efficiency and sustainability.

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