Yamashita; Yoichiro
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yamashita; Yoichiro.The latest application filed is for "filter assembly for a cigarette and method of producing same".
- Yamashita; Yoichiro - Tokyo JP
- Yamashita; Yoichiro - Yokohama JP
| Patent | Date |
|---|---|
| Biodegradable cellulose acetate structure and tobacco filter Grant 6,739,344 - Yamashita May 25, 2 | 2004-05-25 |
| Filter assembly for a cigarette and method of producing same App 20040097354 - Yamashita, Yoichiro ; et al. | 2004-05-20 |
| Molded article of biodegradable cellulose acetate and filter plug for smoking article Grant 6,571,802 - Yamashita June 3, 2 | 2003-06-03 |
| Biodegradable cellulose acetate structure and tobacco filter App 20020096300 - Yamashita, Yoichiro | 2002-07-25 |
| Cigarette filter and filter material therefor Grant 5,913,311 - Ito , et al. June 22, 1 | 1999-06-22 |
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