Bestex Kabushiki-Kaisha

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Filtering material and method of producing the same
- Patent number 5,597,619
- Issue date Jan 28, 1997
- Bestex Kabushiki-Kaisha
- Sumiaki Tsuru
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of producing a filtering material
- Patent number 5,296,254
- Issue date Mar 22, 1994
- Bestex Kabushiki-Kaisha
- Sumiaki Tsuru
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtering material of apatite and glucan used for surgical masks an...
- Patent number 5,143,752
- Issue date Sep 1, 1992
- Bestex Kabushiki-Kaisha
- Tooru Nakajima
- A41 - WEARING APPAREL

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