Koichiro Maekawa

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Ichinomiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
High-pressure discharge lamp, method of its manufacture, and sealin...
- Patent number 5,810,635
- Issue date Sep 22, 1998
- Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen mbH
- Juergen Heider
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-pressure discharge lamp having a ceramic discharge vessel, sin...
- Patent number 5,625,256
- Issue date Apr 29, 1997
- Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
- Rita Tiedt
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
High pressure discharge lamp including directly sintered feedthrough
- Patent number 5,592,049
- Issue date Jan 7, 1997
- Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen mbH
- Juergen Heider
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ceramic lid for sealing semiconductor element and method of manufac...
- Patent number 5,122,862
- Issue date Jun 16, 1992
- NGK Insulators, Ltd.
- Takehiro Kajihara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing polycrystalline translucent alumina having an...
- Patent number 4,222,978
- Issue date Sep 16, 1980
- NGK Insulators, Ltd.
- Isao Oda
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES