Company Filing History:
Years Active: 1983-1998
Title: Kenkichi Yamashita: Innovator in Transistor Circuits and Amplifiers
Introduction
Kenkichi Yamashita is a prominent inventor based in Katsuta, Japan. He has made significant contributions to the field of electronics, particularly in the development of complementary transistor circuits and amplifiers. With a total of 8 patents to his name, Yamashita's work has had a lasting impact on video signal amplification and display technology.
Latest Patents
Yamashita's latest patents include innovations in complementary transistor circuits and amplifiers, specifically designed for high-definition CRT display devices. His inventions focus on amplifying video signals through the use of a multiplexer, gain controller, and current mirror amplifier. By employing complementary transistor circuits, he has achieved circuit simplification, higher precision, and broader bandwidth. Notably, his designs eliminate direct feedback from high voltage outputs by incorporating a low-voltage output circuit for feedback, enhancing performance while reducing power dissipation.
Career Highlights
Throughout his career, Kenkichi Yamashita has been associated with Hitachi, Ltd., where he has contributed to various groundbreaking projects. His expertise in electronics and circuit design has positioned him as a key figure in the advancement of video technology. His innovative approach has led to significant improvements in the efficiency and effectiveness of electronic devices.
Collaborations
Yamashita has worked alongside notable colleagues such as Yasuji Kamata and Kazuo Kato. Their collaborative efforts have further propelled advancements in the field of electronics, showcasing the importance of teamwork in innovation.
Conclusion
Kenkichi Yamashita's contributions to the field of electronics, particularly in the realm of complementary transistor circuits and amplifiers, have established him as a leading inventor. His work continues to influence the development of high-definition display technologies, making a lasting impact on the industry.