Location History:
- Kanagawa, JP (1990)
- Kamakura, JP (1989 - 1992)
Company Filing History:
Years Active: 1989-1992
Title: Masako Ishida: Innovator in Cathode Technology
Introduction
Masako Ishida is a prominent inventor based in Kanagawa, Japan. She has made significant contributions to the field of electron tube technology, holding a total of 4 patents. Her innovative work focuses on the development of advanced cathodes, which are essential components in various electronic devices.
Latest Patents
One of her latest patents is for a cathode in a cathode ray tube. This cathode is designed for use in electron tubes and comprises a base metal primarily made of nickel. It features a surface on which a porous electron emissive layer is formed. This layer consists of 0.1 to 20 wt % of scandium oxide with a layered crystalline structure, dispersed in an oxide of alkaline earth metal, including at least barium. The manufacturing process involves preparing a solution with nitrocellulose, mixing in barium carbonate and scandium oxide, and depositing the suspension on the base metal to create the electron emissive layer.
Another notable patent is for an oxide-coated cathode for an electron tube. This design includes a layer of an electron-emissive substance, which contains an alkaline earth metal oxide as a principal component, specifically barium, along with scandium oxide and at least one heat-resisting oxide selected from various groups.
Career Highlights
Masako Ishida is currently employed at Mitsubishi Electric Corporation, where she continues to push the boundaries of cathode technology. Her work has been instrumental in enhancing the performance and efficiency of electron tubes, which are critical in many electronic applications.
Collaborations
Throughout her career, Masako has collaborated with notable colleagues, including Masato Saito and Keiji Fukuyama. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.
Conclusion
Masako Ishida's contributions to cathode technology exemplify her innovative spirit and dedication to advancing electronic components. Her patents reflect her expertise and commitment to improving the functionality of electron tubes, making her a significant figure in the world of inventions.