Masahisa Handa

Follow

Person

Tama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for manufacturing of structural reinforcing material
- Patent number 4,770,832
- Issue date Sep 13, 1988
- Mitsui Kensetsu Kabushiki Kaisha
- Tadashi Okamoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Reinforced structural material and reinforced fibrous inorganic str...
- Patent number 4,684,567
- Issue date Aug 4, 1987
- Mitsui Kensetsu Kabushiki Kaisha
- Tadashi Okamoto
- B28 - WORKING CEMENT, CLAY, OR STONE