Hiromi Okada

Follow

Person

Mine, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for the preparation of vitreous hollow microspheres
- Patent number 5,833,728
- Issue date Nov 10, 1998
- Agency of Industrial Science and Technology
- Kunio Kimura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for the preparation of vitreous hollow microspheres
- Patent number 5,614,255
- Issue date Mar 25, 1997
- Japan as represented by Director General of Agency of Industrial Science & Te...
- Kunio Kimura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES