Eisuke Bannai

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Sakura, JA

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Patents Grantslast 30 patents

Information Patent Grant
Thermionic emission cathode having a tip of a single crystal of lan...
- Patent number 4,055,780
- Issue date Oct 25, 1977
- National Institute for Researches in Inorganic Materials
- Shichio Kawai
- H01 - BASIC ELECTRIC ELEMENTS