Company Filing History:
1 out of 134 
1 out of 2,935 
Years Active: 1986-1997
Title: Chiyoshi Okuyama: Innovator in Electron Tube Technology
Introduction
Chiyoshi Okuyama is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of electron tube technology, holding a total of 2 patents. His work focuses on improving the performance and reliability of electron tubes, particularly in applications such as photomultipliers.
Latest Patents
Okuyama's latest patents include innovations that enhance the functionality of electron tubes. One of his patents addresses the use of insulation material containing minimal alkali metal in electron tubes. This invention features support electrodes that individually support multiple dynodes within a vessel, such as a photomultiplier tube. A black spacer made from ceramic material is strategically placed between the support electrodes. This design reduces current leaks, which are responsible for dark current and abnormal light generation during photomultiplication, thereby improving the signal-to-noise ratio of the electron tube.
Another significant patent details the process of fabricating a microchannel plate for electron image intensifying. This process utilizes several glass pipes made from materials containing oxides of alkaline earth metals, specifically magnesium oxide (MgO) or a combination of magnesium oxide and calcium oxide (CaO). These innovations are crucial for advancing the technology used in electron tubes.
Career Highlights
Throughout his career, Chiyoshi Okuyama has worked with prominent companies in the field, including Hamamatsu Photonics and Hamamatsu Photonics K.K. His expertise and innovative spirit have contributed to the development of advanced technologies in electron tubes.
Collaborations
Okuyama has collaborated with notable colleagues such as Toshiyuki Uchiyama and Takeo Sugawara. These partnerships have fostered a creative environment that has led to significant advancements in their respective fields.
Conclusion
Chiyoshi Okuyama's contributions to electron tube technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations in electron tube applications.