Hirohiko Nakahara

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of polysilazane
- Patent number 5,905,130
- Issue date May 18, 1999
- Tonen Corporation
- Hirohiko Nakahara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing ceramic products
- Patent number 5,459,114
- Issue date Oct 17, 1995
- Tonen Corporation
- Hiroshi Kaya
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Polymetalosilazane, process of producing same, silicon nitride base...
- Patent number 5,436,398
- Issue date Jul 25, 1995
- Tonen Corporation
- Yasuo Shimizu
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING