Norio Iwamura

Title: **Innovative Contributions of Norio Iwamura in Cathode Ray Tube Technology**

Introduction: Norio Iwamura, an accomplished inventor from Chousei, Japan, has made significant contributions to the field of cathode ray tube technology. With six patents to his name, he has focused on enhancing the efficiency and performance of electron guns within these tubes. His work stands as a testament to the impact of innovation in the evolution of electronic displays.

Latest Patents: Among Norio Iwamura's latest patents are two pivotal inventions related to cathode ray tubes. The first patent describes a cathode ray tube featuring an improved indirectly heated cathode structure. This design incorporates a phosphor screen and an electron gun with a multi-electrode assembly that efficiently projects an electron beam toward the screen. Key elements of this structure include a base metal with an electron emissive material, a metal sleeve housing the components, and a sophisticated heater design that enhances performance.

The second patent also improves the cathode ray tube's heater. This heating system consists of a major heating portion formed by spirally winding heating wires, with leg portions connected to electrical conductors. It is uniquely designed with insulating films and multiple layers of winding, increasing the efficiency of voltage application in the system, critical for the optimal functioning of the electron gun.

Career Highlights: Iwamura has worked with notable companies including Hitachi, Ltd., where he further honed his skills in electronic technologies. His inventive spirit and technical expertise have been crucial in advancing cathode ray tube technology, positioning him as a significant contributor in the industry.

Collaborations: Throughout his career, Norio Iwamura has collaborated with esteemed professionals like Sachio Koizumi and Toshifumi Komiya. These collaborations have fostered innovative breakthroughs and expanded the scope of their combined contributions to technology.

Conclusion: Norio Iwamura’s patents reflect his dedication to innovation in electronic display technology, specifically through the advancement of cathode ray tubes. His work continues to influence the industry, and his collaborative efforts underscore the importance of teamwork in technological progress. As we look ahead, Iwamura's contributions serve as an inspiration for future inventors and innovators in the field.