Takayoshi Imai

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Tokyo, JA

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Patents Grantslast 30 patents

Information Patent Grant
Laminated bituminous roofing membrane
- Patent number 4,091,135
- Issue date May 23, 1978
- Tajima Roofing Co., Ltd.
- Eiichi Tajima
- B32 - LAYERED PRODUCTS
Information Patent Grant
Process for producing laminated bituminous roofing membrane
- Patent number 4,055,453
- Issue date Oct 25, 1977
- Tajima Roofing Co., Ltd.
- Eiichi Tajima
- B32 - LAYERED PRODUCTS
Information Patent Grant
Laminated bituminous roofing membrane
- Patent number 4,039,706
- Issue date Aug 2, 1977
- Tajima Roofing Co., Ltd.
- Eiichi Tajima
- B32 - LAYERED PRODUCTS
Information Patent Grant
Process for manufacturing a waterproofing assembly of laminated bit...
- Patent number 3,937,640
- Issue date Feb 10, 1976
- Tajima Roofing Co., Ltd.
- Eiichi Tajima
- B32 - LAYERED PRODUCTS