Introduction: Akihiko Toda is a prominent inventor based in Hamamatsu, Japan, renowned for his contributions to audio technology. With an impressive portfolio of 10 patents, his inventions reflect his dedication to enhancing the functionality and performance of audio devices. Toda currently works at Yamaha Corporation, a leading company in music and audio products.

Latest Patents: Among his notable patents, Toda has developed an innovative plug connector designed for microphone-equipped headphone plugs. This plug connector consists of a jack portion that accommodates a pin and features distinct contacts for the speaker, ground, and microphone. Furthermore, it includes a bias circuit that supplies a voltage and a control circuit that detects the extraction of the pin from the jack portion.

In addition, he has created a test signal supplying device paired with a semiconductor integrated circuit. This device incorporates external terminals to measure impedance accurately based on detected amplitude of test signals, enhancing the efficiency of electrical testing in audio equipment.

Career Highlights: Throughout his career, Akihiko Toda has excelled in the field of audio technology and innovation. His commitment to research and development at Yamaha Corporation has led to groundbreaking advancements that have transformed the listening experience for users. His expertise and frequent patent filings demonstrate his role as a key contributor to the voice of modern audio solutions.

Collaborations: Working alongside talented colleagues, such as Toshio Maejima and Masao Noro, Akihiko Toda has been part of a dynamic team pushing the boundaries of audio technology. Their collaborative efforts have resulted in innovative designs and patents that have significantly impacted the industry.

Conclusion: Akihiko Toda epitomizes the spirit of innovation in audio technology with his impressive set of patents and dedication to his craft. His work at Yamaha Corporation, alongside esteemed colleagues, continues to influence the future of audio devices, ensuring that they meet the ever-evolving demands of consumers. The contributions of inventors like Toda play an essential role in shaping the technological landscape of the audio industry.

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