Yamamoto; Risa
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yamamoto; Risa.The latest application filed is for "hydraulic excavator".
- Yamamoto; Risa - Ebina N/A JP
- Yamamoto; Risa - Komatsu JP
- Yamamoto; Risa - Komatsu-shi JP
- Yamamoto; Risa - Ebina-shi JP
- Yamamoto; Risa - Kawasaki JP
- Yamamoto; Risa - Kanagawa JP
| Patent | Date |
|---|---|
| Diesel engine exhaust purification system Grant 9,028,598 - Yamamoto May 12, 2 | 2015-05-12 |
| Exhaust gas purifying apparatus for diesel engine Grant 8,999,048 - Nishizawa , et al. April 7, 2 | 2015-04-07 |
| Hydraulic excavator Grant 8,794,673 - Kimura , et al. August 5, 2 | 2014-08-05 |
| Hydraulic Excavator App 20140083781 - Kimura; Youichirou ; et al. | 2014-03-27 |
| Exhaust Gas Purifying Apparatus For Diesel Engine App 20130092030 - Nishizawa; Toru ; et al. | 2013-04-18 |
| Diesel Engine Exhaust Purification System App 20130087048 - Yamamoto; Risa | 2013-04-11 |
| Internal combustion engine exhaust gas cleaning apparatus and exhaust gas cleaning method Grant 8,322,131 - Yamamoto December 4, 2 | 2012-12-04 |
| Exhaust Gas Purification Device For Internal Combustion Engine App 20120186235 - Yamamoto; Risa | 2012-07-26 |
| Internal Combustion Engine Exhaust Gas Cleaning Apparatus And Exhaust Gas Cleaning Method App 20100287913 - Yamamoto; Risa | 2010-11-18 |
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