Mitsuo Funakoshi

Title: Mitsuo Funakoshi: Innovator in Discharge Lamp Technology

Introduction

Mitsuo Funakoshi is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of discharge lamp technology, holding a total of 2 patents. His innovative designs focus on improving the efficiency and stability of lighting systems.

Latest Patents

Funakoshi's latest patents revolve around the development of discharge lamps that utilize emitters other than thorium. One of his patents describes a discharge lamp that includes an emitter added to a cathode in a luminous tube. This design prevents early depletion of the emitter due to excessive vaporization, ensuring stable lighting even during start-up. The main body part of the cathode is constructed from a high-melting-point metal material that contains no thorium, while the front end part is made from a similar material that includes an emitter. Additionally, a sintered compact containing a higher concentration of the emitter is strategically placed within a sealed space in the lamp.

Another patent by Funakoshi also focuses on a discharge lamp that includes a cathode in a luminous tube. This design similarly prevents excessive vaporization of the emitter from the cathode, allowing for smooth lighting at start-up. The construction details mirror those of his previous patent, emphasizing the use of high-melting-point materials and the incorporation of a sintered compact.

Career Highlights

Mitsuo Funakoshi has established himself as a key figure in the field of lighting technology. He works at Ushio Denki Kabushiki Kaisha, where he continues to innovate and develop new solutions for discharge lamps. His work has contributed to advancements in lighting efficiency and reliability.

Collaborations

Throughout his career, Funakoshi has collaborated with talented individuals such as Yukiharu Tagawa and Tomoyoshi Arimoto. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Mitsuo Funakoshi's contributions to discharge lamp technology highlight his role as an influential inventor. His patents reflect a commitment to improving lighting systems, ensuring they are both efficient and reliable. His work continues to impact the industry positively.