Eiki Usui

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Mooka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Aluminum alloy sheet for discs having good platability
- Patent number 5,437,746
- Issue date Aug 1, 1995
- Kabushiki Kaisha Kobe Seiko Sho
- Eiki Usui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Aluminum alloy material having a surface of excellent zinc phosphat...
- Patent number 5,389,453
- Issue date Feb 14, 1995
- Kabushiki Kaisha Kobe Seiko Sho
- Kikurou Toyose
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Aluminum alloy sheet with good forming workability and method for m...
- Patent number 4,753,685
- Issue date Jun 28, 1988
- Kabushiki Kaisha Kobe Seiko Sho
- Eiki Usui
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Surface-treated aluminum alloy substrates for magnetic disks
- Patent number 4,631,112
- Issue date Dec 23, 1986
- Kabushiki Kaisha Kobe Seiko Sho
- Eiki Usui
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR