Hagiwara; Zenji

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Kusatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Zeolite particles retaining silver ions having antibacterial proper...
- Patent number 4,911,898
- Issue date Mar 27, 1990
- Kanebo Limited
- Zenji Hagiwara
- A46 - BRUSHWARE
Information Patent Grant
Zeolite particles having bacteriocidal properties
- Patent number 4,911,899
- Issue date Mar 27, 1990
- Kanebo Limited
- Zenji Hagiwara
- A46 - BRUSHWARE