Hiraoka; Yoshiji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hiraoka; Yoshiji.The latest application filed is for "stainproof, flame-resistant composite sheet material".
- Hiraoka; Yoshiji - Musashino JP
- Hiraoka; Yoshiji - Honcho Kichijoji JP
| Patent | Date |
|---|---|
| Stainproof, flame-resistant composite sheet material Grant 4,714,650 - Obayashi , et al. December 22, 1 | 1987-12-22 |
| Composite sheet material Grant 4,686,135 - Obayashi , et al. August 11, 1 | 1987-08-11 |
| Water-impermeable sheet material Grant 4,312,907 - Hiraoka , et al. January 26, 1 | 1982-01-26 |
| Horseshoe Grant D253,013 - Hiraoka September 25, 1 | 1979-09-25 |
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