Akira Hirai

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Ushiku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for holding substrate in vacuum
- Patent number 7,905,979
- Issue date Mar 15, 2011
- Hitachi Plant Technologies, Ltd.
- Naoto Yokoyama
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Substrate holding device including adhesive face with hexagons defi...
- Patent number 7,326,457
- Issue date Feb 5, 2008
- Hitachi Plant Technologies, Ltd.
- Naoto Yokoyama
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus utilizing light stripe image for detecting portion to be...
- Patent number 4,724,301
- Issue date Feb 9, 1988
- Hitachi, Ltd.
- Nobuo Shibata
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding position detecting apparatus
- Patent number 4,667,082
- Issue date May 19, 1987
- Hitachi, Ltd.
- Nobuo Shibata
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR HOLDING SUBSTRATE IN VACUUM
- Publication number 20080099137
- Publication date May 1, 2008
- Hitachi Plant Technologies, Ltd.
- Naoto Yokoyama
- G02 - OPTICS
Information Patent Application
METHOD FOR MANUFACTURING A LIQUID CRYSTAL DISPLAY DEVICE
- Publication number 20080060754
- Publication date Mar 13, 2008
- Hitachi Plant Technologies, Ltd.
- Naoto Yokoyama
- G02 - OPTICS
Information Patent Application
Method for holding substrate in vacuum, method for manufacturing li...
- Publication number 20050167036
- Publication date Aug 4, 2005
- Naoto Yokoyama
- G02 - OPTICS