Ishizuka; Yasuji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ishizuka; Yasuji.The latest application filed is for "air-fuel ratio control device".
- Ishizuka; Yasuji - Chigasaki N/A JP
- Ishizuka; Yasuji - Chigasaki-shi JP
- Ishizuka; Yasuji - West Bloomfield MI
- Ishizuka; Yasuji - Kanagawa JP
| Patent | Date |
|---|---|
| Air-fuel ratio control device Grant 8,607,545 - Ootake , et al. December 17, 2 | 2013-12-17 |
| Air-fuel Ratio Control Device App 20120117950 - Ootake; Yoshiyuki ; et al. | 2012-05-17 |
| Air-fuel ratio control device Grant 8,176,728 - Ootake , et al. May 15, 2 | 2012-05-15 |
| Air-fuel ratio control apparatus Grant 8,141,343 - Nagai , et al. March 27, 2 | 2012-03-27 |
| Air-fuel ratio control apparatus Grant 7,536,999 - Ootake , et al. May 26, 2 | 2009-05-26 |
| Air-fuel Ratio Control Device App 20090043481 - OOTAKE; Yoshiyuki ; et al. | 2009-02-12 |
| Air-fuel Ratio Control Apparatus App 20080172166 - NAGAI; Hiroyuki ; et al. | 2008-07-17 |
| Air-fuel Ratio Control Apparatus App 20080172167 - OOTAKE; Yoshiyuki ; et al. | 2008-07-17 |
| Desulphating of nitrogen oxide trapping catalyst Grant 7,121,086 - Nishii , et al. October 17, 2 | 2006-10-17 |
| Engine exhaust purification device Grant 6,766,640 - Ishizuka , et al. July 27, 2 | 2004-07-27 |
| Desulphating of nitrogen oxide trapping catalyst App 20020192125 - Nishii, Satoshi ; et al. | 2002-12-19 |
| Engine exhaust purification device App 20020023432 - Ishizuka, Yasuji ; et al. | 2002-02-28 |
| Exhaust emission control device for internal combustion engine Grant 6,263,666 - Kubo , et al. July 24, 2 | 2001-07-24 |
| Exhaust emission control system for internal combustion engine Grant 6,185,929 - Ishizuka , et al. February 13, 2 | 2001-02-13 |
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