Shigeyoshi Ito

Title: Shigeyoshi Ito: Innovator in Cathode Ray Tube Technology

Introduction

Shigeyoshi Ito is a notable inventor based in Nagahama, Japan. He has made significant contributions to the field of cathode ray tube technology, holding a total of 2 patents. His work focuses on improving the manufacturing processes and quality of cathode ray tubes, which are essential components in various display technologies.

Latest Patents

Ito's latest patents include innovative designs aimed at enhancing the efficiency and reliability of cathode ray tubes. One of his patents describes a CRT funnel with positioning reference portions. This design features upper end edges of the positioning reference portions formed on the outer walls of the funnel. These edges are strategically positioned at distances toward the narrow open end of the funnel, which helps suppress molding defects such as deficiencies and wrinkles. This improvement is crucial for ensuring that glass is completely filled during the manufacturing process, thereby eliminating small cracks caused by heat stress.

Another significant patent by Ito is for a funnel for color cathode ray tubes. This funnel includes a seal end surface designed for sealing a panel through frit glass. Notably, at least 50% of the seal end surface in the width direction is a rough surface. This rough surface meets specific conditions for roughness profile, which enhances the adhesion and overall performance of the cathode ray tube.

Career Highlights

Shigeyoshi Ito has built a successful career at Nippon Electric Glass Co., Ltd., where he has been instrumental in advancing cathode ray tube technology. His innovative designs and patents have contributed to the company's reputation as a leader in the glass manufacturing industry.

Collaborations

Throughout his career, Ito has collaborated with talented individuals such as Hajime Makio and Masaya Kyono. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Shigeyoshi Ito's contributions to cathode ray tube technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the manufacturing processes and quality of display technologies.