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Patents Grants
last 30 patents
Information
Patent Grant
Electron tube
Patent number
6,198,221
Issue date
Mar 6, 2001
Hamamatsu Photonics K.K.
Motohiro Suyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron tube with improved airtight seal between faceplate and sid...
Patent number
6,020,684
Issue date
Feb 1, 2000
Hamamatsu Photonics K,K,
Yasuharu Negi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron tube with improved airtight seal between faceplate and sid...
Patent number
6,008,579
Issue date
Dec 28, 1999
Hamamatsu Photonics K.K.
Yasuharu Negi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron tube with electron lens
Patent number
5,917,282
Issue date
Jun 29, 1999
Hamamatsu Photonics K.K.
Motohiro Suyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron tube
Patent number
5,883,466
Issue date
Mar 16, 1999
Hamamatsu Photonics K.K.
Motohiro Suyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photocathode capable of detecting position of incident light in one...
Patent number
5,471,051
Issue date
Nov 28, 1995
Hamamatsu Photonics K.K.
Minoru Niigaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor photo-electron-emitting device
Patent number
5,336,902
Issue date
Aug 9, 1994
Hamamatsu Photonics K.K.
Minoru Nigaki
H01 - BASIC ELECTRIC ELEMENTS