Hiromi Nishiyama

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Ebina, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for drilling a printed circuit board
- Patent number 5,066,171
- Issue date Nov 19, 1991
- Hitachi Seiko Ltd.
- Kunio Arai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for drilling a hole in a printed circuit board
- Patent number 4,997,319
- Issue date Mar 5, 1991
- Hitachi Seiko Ltd.
- Kunio Arai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of drilling printed circuit board
- Patent number 4,872,787
- Issue date Oct 10, 1989
- Hitachi Seiko Ltd.
- Kunio Arai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Composite sheet, machining method for composite sheet and laser mac...
- Publication number 20080008854
- Publication date Jan 10, 2008
- HITACHI VIA MECHANICS, LTD.
- Kunio Arai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method and apparatus for perforating printed circuit board
- Publication number 20060211158
- Publication date Sep 21, 2006
- HITACHI VIA MECHANICS, LTD.
- Kunio Arai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR