Hirasawa; Toshimasa
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hirasawa; Toshimasa.The latest application filed is for "plant growth sheet structure, natural turf sheet structure, method of growing turf and method of laying turf sheet structure".
- Hirasawa; Toshimasa - Tokyo JP
- Hirasawa; Toshimasa - Chiba JP
| Patent | Date |
|---|---|
| Plant growth sheet structure, natural turf sheet structure, method of growing turf and method of laying turf sheet structure Grant 6,219,965 - Ishikawa , et al. April 24, 2 | 2001-04-24 |
| Openable and closeable roof construction Grant 5,394,659 - Kawaguchi , et al. March 7, 1 | 1995-03-07 |
| Dome shaped roof structure Grant 5,371,983 - Kawaguchi , et al. December 13, 1 | 1994-12-13 |
| Openable and closeable roof construction Grant 5,257,485 - Kawaguchi , et al. November 2, 1 | 1993-11-02 |
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