Yoshio Yamanaka

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Takefu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rare earth-containing alloys and method for purification of hydroge...
- Patent number 4,215,008
- Issue date Jul 29, 1980
- Shin-Etsu Chemical Co. Ltd.
- Zenzi Hagiwara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Thermally insulating containers for liquefied gases
- Patent number 4,154,364
- Issue date May 15, 1979
- Shin-Etsu Chemical Co., Ltd.
- Zenji Hagiwara
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS