Oguma; Hajime
Patent Applications and Registrations
Patent applications and USPTO patent grants for Oguma; Hajime.The latest application filed is for "apparatus and a method for exhaust gas purification in an internal combustion engine".
- Oguma; Hajime - Yokohama JP
- Oguma, Hajime - Yokohama-shi JP
- Oguma; Hajime - Zama JP
- Oguma, Hajime - Zama city JP
| Patent | Date |
|---|---|
| Apparatus and a method for exhaust gas purification in an internal combustion engine Grant 6,845,609 - Oguma January 25, 2 | 2005-01-25 |
| Apparatus and method for engine exhaust purification Grant 6,637,195 - Sakai , et al. October 28, 2 | 2003-10-28 |
| Apparatus and a method for exhaust gas purification in an internal combustion engine App 20030131590 - Oguma, Hajime | 2003-07-17 |
| Engine exhaust purification device Grant 6,494,037 - Oguma , et al. December 17, 2 | 2002-12-17 |
| Apparatus and method for engine exhaust purification App 20020157382 - Sakai, Atsushi ; et al. | 2002-10-31 |
| Engine exhaust purification device App 20010022081 - Oguma, Hajime ; et al. | 2001-09-20 |
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