Iwao Ida

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Titanium discs useful for magnetic discs
- Patent number 5,478,657
- Issue date Dec 26, 1995
- NKK Corporation
- Hiroyoshi Suenaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for manufacturing silicon single crystals
- Patent number 5,270,020
- Issue date Dec 14, 1993
- NKK Corporation
- Makoto Suzuki
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of manufacturing a magnetic disk substrate of titanium
- Patent number 5,221,459
- Issue date Jun 22, 1993
- NKK Corporation
- Yoko Okano
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR