Yokoyama; Iwao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yokoyama; Iwao.The latest application filed is for "imaging filter".
- Yokoyama; Iwao - Sano-shi JP
- Yokoyama; Iwao - Tochigi JP
- Yokoyama; Iwao - Ichikawa JP
- Yokoyama; Iwao - Kitaibaraki JP
| Patent | Date |
|---|---|
| Imaging Filter App 20090244711 - Yokoyama; Iwao ; et al. | 2009-10-01 |
| Complex optical element and method for manufacturing thereof Grant 7,196,854 - Komiya , et al. March 27, 2 | 2007-03-27 |
| Method for manufacturing optical elements App 20060073273 - Yokoyama; Iwao | 2006-04-06 |
| Complex optical element and method for manufacturing thereof App 20050083586 - Komiya, Keiji ; et al. | 2005-04-21 |
| Paper sheet holder Grant 5,842,721 - Kawabe December 1, 1 | 1998-12-01 |
| Nuclear reactor Grant 4,663,116 - Masuhara , et al. May 5, 1 | 1987-05-05 |
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