Company Filing History:
Years Active: 1978-1980
Title: Testuo Oyama: Innovator in Electron Tube Technology
Introduction
Testuo Oyama is a notable inventor based in Takahagi, Japan. He has made significant contributions to the field of electron tube technology, holding two patents that showcase his innovative spirit and technical expertise.
Latest Patents
Oyama's latest patents include a "Directly Heated Cathode for Electron Tube" and a "Cathode for Cathode Ray Tube of Directly Heating Type." The first patent describes a cathode that features a stable electron emission characteristic and a low cut-off voltage. This cathode is composed of a base metal alloy containing 20-30% tungsten and a trace amount of zirconium, with nickel as the balance. It also includes binder dots of metallic nickel powders and a layer of thermoelectron emission oxides. The second patent focuses on a cathode substrate body designed to minimize deformation and extend the life of cathodes used in cathode ray tubes. This innovation involves a bonding layer created through diffusion bonding, enhancing the performance and durability of the cathode.
Career Highlights
Testuo Oyama is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop cutting-edge technologies that have a lasting impact on the industry.
Collaborations
Oyama has collaborated with notable coworkers, including Ko Soeno and Hisashi Ando. Their combined expertise has contributed to the advancement of electron tube technology.
Conclusion
Testuo Oyama's contributions to the field of electron tube technology through his patents and work at Hitachi, Ltd. highlight his role as an influential inventor. His innovations continue to shape the future of electronic components.