Company Filing History:
Years Active: 1985
Title: The Innovations of Kunisuke Kasagi
Introduction
Kunisuke Kasagi is a notable inventor based in Mobara, Japan. He is recognized for his contributions to the field of television technology, particularly in the development of color television receivers. His innovative work has had a significant impact on the way we experience visual media today.
Latest Patents
Kasagi holds a patent for a color television receiver. This invention includes a color picture tube with three electron guns, each equipped with cathodes and heaters. The design features an automatic cutoff adjusting circuit that adds a reference voltage signal at a black level to a luminance signal. This occurs during an interval that begins at the end of the vertical blanking period. The circuit detects cathode currents flowing toward the cathodes during this interval, controlling cathode voltages to maintain the currents at a predetermined level through feedback. Additionally, the invention includes a circuit that applies a positive voltage to each heater during this interval, reducing the potential difference between the heater and the corresponding cathode, thereby lowering leakage current.
Career Highlights
Kasagi is associated with Hitachi, Ltd., a leading company in technology and electronics. His work at Hitachi has allowed him to contribute to advancements in television technology, enhancing the viewing experience for consumers.
Collaborations
Kasagi has worked alongside Machio Kawashima, a fellow innovator in the field. Their collaboration has likely fostered the development of new ideas and technologies within the company.
Conclusion
Kunisuke Kasagi's contributions to the field of color television technology exemplify the spirit of innovation. His patent for a color television receiver showcases his technical expertise and commitment to enhancing visual media. His work continues to influence the industry and improve the way we enjoy television today.