Toshiyuki Okamoto

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Takasago, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sealing agent for a foil sealed lamp
- Patent number 7,019,462
- Issue date Mar 28, 2006
- Ushio Denki Kabushiki Kaisha
- Toshiyuki Okamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing a fused silica envelope for discharge lamp
- Patent number 4,985,275
- Issue date Jan 15, 1991
- Ushio Denki Kabushiki Kaisha
- Tetsu Takemura
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
DISCHARGE LAMP DEVICE
- Publication number 20120133304
- Publication date May 31, 2012
- Ushio Denki Kabushiki Kaisha
- Naoki KITATOCHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Foil sealed lamp
- Publication number 20040201352
- Publication date Oct 14, 2004
- Toshiyuki Okamoto
- H01 - BASIC ELECTRIC ELEMENTS