Eiichi Nishiyama

Title: Eiichi Nishiyama: Inventor in Color Cathode-Ray Tube Technology.

Introduction

Eiichi Nishiyama is an inventor associated with Funabashi, Japan, and Hitachi, Ltd. His work includes inventions related to the mounting and adjustment of deflection yokes in color cathode-ray tubes. Nishiyama is credited with 2 patents.

Latest Patents

Nishiyama’s listed patents address practical aspects of securing and positioning a deflection yoke.

“Color Cathode-Ray Tube Having Deflection Yoke” describes a system for adjusting static convergence and color purity by controlling the polarity and magnetization of metal-alloy pole pieces arranged around the tube. Tap bolts on a yoke-mounting member press against the funnel’s outer wall to secure the deflection yoke.

“Position Adjusting Method for Deflecting Yoke” describes a measurement setup for positioning a color cathode-ray tube. The measuring equipment is oriented with its measuring surface facing upward, while the tube is placed panel-side down on that surface to support the adjustment process.

Career Highlights

Nishiyama’s patent work focuses on components and procedures used in color cathode-ray tube assemblies. The inventions address yoke fixation, alignment, and adjustment, contributing to the engineering of display hardware at Hitachi, Ltd.

Collaborations

Nishiyama’s listed coworkers include Kunio Shimada and Takumi Karasawa. Their shared association reflects the collaborative environment surrounding this area of display technology.

Conclusion

Eiichi Nishiyama’s two patents document focused contributions to deflection-yoke mounting and adjustment for color cathode-ray tubes.