Company Filing History:
Years Active: 1980-1987
Title: Machio Kawashima: Innovator in Color Picture Tube Technology
Introduction
Machio Kawashima is a notable inventor based in Mobara, Japan. He has made significant contributions to the field of color picture tube technology, holding a total of 4 patents. His work has been instrumental in advancing the performance and functionality of color television receivers.
Latest Patents
Kawashima's latest patents include an in-line color picture tube apparatus with dynamic convergence correction. This innovative device features a dynamic convergence correction means that is strategically placed between a self-convergence deflection yoke and a static convergence correction magnet assembly. The design incorporates a support member made of a non-magnetic substance, along with eight coil assemblies that generate complex magnetic fields to enhance picture quality. Another significant patent is for a color television receiver that includes a color picture tube with three electron guns. This receiver is equipped with an automatic cutoff adjusting circuit that optimizes cathode currents, ensuring consistent performance.
Career Highlights
Kawashima has spent a considerable part of his career at Hitachi, Ltd., where he has been able to apply his innovative ideas in practical applications. His work has not only contributed to the company's success but has also influenced the broader electronics industry.
Collaborations
Throughout his career, Kawashima has collaborated with talented individuals such as Takeshi Nakayama and Takehiko Nishimoto. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.
Conclusion
Machio Kawashima's contributions to color picture tube technology exemplify the impact of innovation in the electronics field. His patents and collaborative efforts continue to influence the industry, showcasing the importance of creativity and teamwork in technological advancement.