Shoichi Mayama

Title: **Innovative Contributions of Shoichi Mayama in Discharge Lamp Technology**

Introduction

Shoichi Mayama, an accomplished inventor based in Himeji, Japan, has made significant strides in the field of discharge lamp technology. With two patents to his name, his innovative designs focus on enhancing the efficiency and functionality of discharge lamps.

Latest Patents

Among his latest inventions, Mayama developed a patent for a discharge lamp that incorporates a plurality of coating layers. This innovative design allows for the effective reduction of ultraviolet radiation of short wavelengths while increasing the emitted light at 365 nm wavelength. The invention utilizes a quartz glass arc tube that is strategically coated with layers that include Ta₂O₅ as the primary component, along with at least one additional layer differing in refraction coefficient. This configuration effectively reduces reflection and cuts at least 50% of ultraviolet radiation with wavelengths of 230 nm or less.

In another notable patent, he introduced a water-cooled discharge lamp featuring a uniquely designed anode. This design directly connects a tungsten tip piece to a copper body element of the anode, with an efficient water cooling arrangement that ensures optimal performance. The cooling mechanism facilitates the flow of water from a feed tube through a gap that serves as a drainage duct, contributing to the reliability and endurance of the lamp during operation.

Career Highlights

Shoichi Mayama is currently employed at Ushio Denki Kabushiki Kaisha, where he continues to contribute to advancements in lighting technologies. His dedication and technical expertise have positioned him as a key figure within the company, reflecting both innovation and commitment to quality in product development.

Collaborations

Throughout his career, Mayama has collaborated with notable coworkers such as Kyosuke Fujina and Katsuoki Miyasu. Together, they have worked towards refining discharge lamp technologies, leveraging their combined knowledge and skills to push the boundaries of innovation in their field.

Conclusion

Shoichi Mayama's contributions to the development of discharge lamp technology exemplify the spirit of innovation and the impact that dedicated inventors can have on various industries. With his focus on improving light efficiency and reducing harmful radiation, Mayama is not only enhancing current technological standards but also paving the way for future advancements in lighting solutions.