Please explain in detail the achievements of Dr. Kenjiro Takayanagi, who developed the electronic television.

 Thank you. Here is the explanation in English.

Dr. Kenjiro Takayanagi is known as the "Father of Japanese Television" and was a brilliant engineer who laid the foundation for electronic television technology in Japan. His greatest achievement was to be a world pioneer in demonstrating the potential of electronic television, at a time when mechanical systems were the standard.

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Key Achievements

1. First to Display an Image on a Cathode-Ray Tube (CRT)

In 1926, at the Hamamatsu Higher Technical School (now Shizuoka University), Dr. Takayanagi succeeded in displaying the Japanese character "イ" (pronounced "i") on a cathode-ray tube (CRT). This was a world-first. While the transmitting side used a mechanical system (a Nipkow disk), the receiving side was electronic, which was groundbreaking. This achievement demonstrated the possibility of high-definition images using electronic methods, setting the direction for all future television development.

2. Completion of the First All-Electronic Television System

Following his initial success, he continued his research and in 1935, completed a fully electronic television system, a prototype of modern TVs. He visited the United States to study the latest technology and went on to develop his own original camera tube, the "iconoscope." His work brought Japanese television technology to a world-class level.

3. Laying the Foundation for Japanese TV Broadcasting

Although his research was temporarily halted during World War II, he resumed his work at JVC (Victor Company of Japan) after the war. He collaborated with NHK and other private companies, making significant contributions to the launch of public television broadcasting in Japan in 1953. He also played a crucial role in the development of video tape recorders (VTRs) and color television, leaving a profound impact on the growth of Japan's electronics industry.

Dr. Takayanagi's legacy extends beyond technical development. He also trained and inspired many engineers, leading the growth of Japan's television industry. His passion and dedication laid the groundwork for the rich visual culture we have today.