Tokyo Gas Kabushiki Kaisha
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tokyo Gas Kabushiki Kaisha.The latest application filed is for "pipeline structure with a lining material, an end structure of said pipeline and a method for applying a lining material to a pipeline".
- Tokyo Gas Kabushiki Kaisha - Tokyo JP
- Tokyo Gas Kabushiki Kaisha - Osaka JP
| Patent | Date |
|---|---|
| Pipeline structure with a lining material, an end structure of said pipeline and a method for applying a lining material to a pipeline Grant 5,857,494 - Tsukamoto , et al. January 12, 1 | 1999-01-12 |
| Lining material for pipelines Grant 5,164,237 - Kaneda , et al. November 17, 1 | 1992-11-17 |
| Lining material for pipelines Grant 5,077,107 - Kaneda , et al. December 31, 1 | 1991-12-31 |
| Method for lining pipe lines Grant 4,956,038 - Morinaga , et al. September 11, 1 | 1990-09-11 |
| Safety apparatus for combustion device Grant 4,638,789 - Ueki , et al. January 27, 1 | 1987-01-27 |
| Method for smoothly evaginating a tubular material under pressure Grant 4,334,943 - Zenbayashi , et al. June 15, 1 | 1982-06-15 |
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