Toshiyuki Kitta

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Omiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tendon for prestressed concrete
- Patent number 4,648,224
- Issue date Mar 10, 1987
- Japanese National Railways
- Toshiyuki Kitta
- E04 - BUILDING
Information Patent Grant
Metallic sheath for posttensioning method
- Patent number 4,577,443
- Issue date Mar 25, 1986
- Oiles Industry Co., Ltd.
- Toshiyuki Kitta
- E04 - BUILDING
Information Patent Grant
Metallic sheath for a posttensioning method provided with rust proo...
- Patent number 4,557,087
- Issue date Dec 10, 1985
- Japanese National Railways
- Toshiyuki Kitta
- E04 - BUILDING