Hitoshi Ujimasa

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Higashiosaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dry etching method of a silicon thin film
- Patent number 6,133,157
- Issue date Oct 17, 2000
- Sharp Kabushike Kaisha
- Takehisa Sakurai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Selective dry etching method of undoped and doped silicon thin films
- Patent number 5,783,494
- Issue date Jul 21, 1998
- Sharp Kabushiki Kaisha
- Takehisa Sakurai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Active-matrix display device with added capacitance electrode wire...
- Patent number 5,162,901
- Issue date Nov 10, 1992
- Sharp Kabushiki Kaisha
- Yasunori Shimada
- G02 - OPTICS