Yuji Ichikawa

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Okazaki, JP

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Patents Grantslast 30 patents

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Semiconductor device employing silicon nitride layers with varied h...
- Patent number 6,137,156
- Issue date Oct 24, 2000
- DENSO Corporation
- Yuji Ichikawa
- H01 - BASIC ELECTRIC ELEMENTS
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Dry etching method for semiconductor substrate
- Patent number 6,090,718
- Issue date Jul 18, 2000
- Denso Corporation
- Hajime Soga
- H01 - BASIC ELECTRIC ELEMENTS
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Method of forming silicon nitride with varied hydrogen concentration
- Patent number 5,714,408
- Issue date Feb 3, 1998
- Denso Corporation
- Yuji Ichikawa
- H01 - BASIC ELECTRIC ELEMENTS
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Self-cleaning plate shaped device
- Patent number 5,013,888
- Issue date May 7, 1991
- Aisin Seiki Kabushiki Kaisha
- Shoji Okada
- B60 - VEHICLES IN GENERAL