Keio Yamanaka

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Osaka, 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
Information Patent Grant
Polymer article having an antibacterial property containing zeolite...
- Patent number 4,775,585
- Issue date Oct 4, 1988
- Kanebo Ltd./Kanto Chemical Co.
- Zenji Hagiwara
- A46 - BRUSHWARE
Information Patent Grant
Novel aromatic diamine compounds and flame-resistant polyamide comp...
- Patent number 4,144,225
- Issue date Mar 13, 1979
- Kanebo, Ltd.
- Keio Yamanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...