Company Filing History:
Years Active: 1979-1984
Title: Tadafumi Hoshiyama: Innovator in Image Tube Technology
Introduction
Tadafumi Hoshiyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of image tube technology, holding 2 patents that showcase his innovative approach to enhancing image quality and performance.
Latest Patents
Hoshiyama's latest patents include an image tube featuring a conductive film designed to prevent spurious discharge. This invention involves a conductive film along the inside surface of an insulating tube, which extends axially between a photoelectric cathode and a fluorescent anode. The conductive film is electrically connected to the photoelectric cathode and has an axial length between 1/2 and 3/4 of that of the insulating tube. Additionally, the conductive film may be formed along the outside surface of the insulating tube, either with or without a conventional semi-insulating layer.
Another significant patent is for a lead monoxide target and the method of manufacturing it. This target for an image pick-up tube utilizes a layer of lead monoxide (PbO) that exhibits intrinsic conductivity. The surface region of the PbO layer is engineered to trap beam electrons effectively, enhancing resolution and dark current characteristics while maintaining its conductive state.
Career Highlights
Hoshiyama is associated with Nippon Electric Co., Ltd., where he has been instrumental in advancing image tube technology. His work has contributed to the development of more efficient and effective imaging systems.
Collaborations
Hoshiyama has collaborated with notable colleagues, including Tadao Shima and Kozo Ichikawa. Their combined expertise has fostered innovation and progress in their respective fields.
Conclusion
Tadafumi Hoshiyama's contributions to image tube technology reflect his dedication to innovation and excellence. His patents demonstrate a commitment to improving imaging systems, making a lasting impact in the field.