Hayao Aoyagi

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Concrete leveling apparatus
- Patent number 5,190,396
- Issue date Mar 2, 1993
- Takenaka Corporation
- Hayao Aoyagi
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Apparatus for horizontally casting concrete
- Patent number 4,519,768
- Issue date May 28, 1985
- Takenaka Komuten Co., Ltd.
- Toshio Murai
- E04 - BUILDING