Toshinobu Hirayama

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wound dressing having a porous structure
- Patent number 5,298,015
- Issue date Mar 29, 1994
- Nippon Zeon Co., Ltd.
- Shigeru Komatsuzaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method of manufacturing a wound dressing
- Patent number 5,149,469
- Issue date Sep 22, 1992
- Nippon Zeon Co., Ltd.
- Shigeru Komatsuzaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE