Akihiko Tsurumaru

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Metal halide lamps with tungsten coils having varying pitches and i...
- Patent number 6,137,228
- Issue date Oct 24, 2000
- Stanley Electric Co., Ltd.
- Masanobu Aizawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Preform for fluorescent lamp, fluorescent lamp prepared by the same...
- Patent number 5,932,970
- Issue date Aug 3, 1999
- Stanley Electric Co., Ltd.
- Masatosi Chiba
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing vaporized metal discharge lamp
- Patent number 4,993,981
- Issue date Feb 19, 1991
- Stanley Electric Co., Ltd.
- Akira Ose
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Headlamp for vehicle
- Patent number 4,682,072
- Issue date Jul 21, 1987
- Stanley Electric Co., Ltd.
- Takeo Ichihara
- F21 - LIGHTING