Yukihiro Kobayakawa

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Discharge bulb with shroud glass having metal oxide in specific range
- Patent number 6,825,616
- Issue date Nov 30, 2004
- Koito Manufacturing Co., Ltd.
- Yukihiro Kobayakawa
- F21 - LIGHTING
Information Patent Grant
Arc tube with pinch seal and dimensional relationship and method fo...
- Patent number 6,653,785
- Issue date Nov 25, 2003
- Koito Manufacturing Co., Ltd.
- Michio Takagaki
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Discharge bulb
- Publication number 20020180358
- Publication date Dec 5, 2002
- KOITO MANUFACTURING CO., LTD.
- Yukihiro Kobayakawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Arc tube and method for forming the same
- Publication number 20020105272
- Publication date Aug 8, 2002
- KOITO MANUFACTURING CO., LTD.
- Michio Takagaki
- H01 - BASIC ELECTRIC ELEMENTS