Yoshinori Sakamoto

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Sakai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for hydrophilic treatment of aluminum using an amphoteric po...
- Patent number 4,783,224
- Issue date Nov 8, 1988
- Nihon Parkerizing Co., Ltd.
- Ryosuke Sako
- F28 - HEAT EXCHANGE IN GENERAL