Hitosugi; Hideshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hitosugi; Hideshi.The latest application filed is for "combined oil ring".
- Hitosugi; Hideshi - Saitama JP
- HITOSUGI; Hideshi - Saitama-shi JP
- Hitosugi; Hideshi - Saitama-City JP
- Hitosugi; Hideshi - Yono JP
- Hitosugi, Hideshi - Yono-shi JP
| Patent | Date |
|---|---|
| Combined oil ring Grant 10,724,636 - Kawasaki , et al. | 2020-07-28 |
| Combined oil ring Grant 10,520,085 - Murata , et al. Dec | 2019-12-31 |
| Combined Oil Ring App 20180051806 - MURATA; Yasuyuki ; et al. | 2018-02-22 |
| Combined Oil Ring App 20170227126 - KAWASAKI; Masataka ; et al. | 2017-08-10 |
| Combined oil ring Grant 9,528,606 - Hitosugi , et al. December 27, 2 | 2016-12-27 |
| Combined Oil Ring App 20140062030 - HITOSUGI; Hideshi ; et al. | 2014-03-06 |
| Piston ring Grant 8,240,676 - Kariya , et al. August 14, 2 | 2012-08-14 |
| Oil Ring Mechanism Of A Piston App 20120061920 - Nishiura; Hiroyuki ; et al. | 2012-03-15 |
| Piston Ring App 20090058014 - Kariya; Tomotaka ; et al. | 2009-03-05 |
| Oil ring Grant 7,354,045 - Abe , et al. April 8, 2 | 2008-04-08 |
| Piston For Internal-Combustion Engine And Combination Of Piston And Piston Ring For Internal-Combustion Engine App 20070261658 - Abe; Tomoaki ; et al. | 2007-11-15 |
| Oil ring App 20060006604 - Abe; Tomoaki ; et al. | 2006-01-12 |
| Compression piston ring for use in internal combustion engine Grant 6,726,218 - Negishi , et al. April 27, 2 | 2004-04-27 |
| Ring groove for oil ring with coil expander of piston Grant 6,682,078 - Hitosugi , et al. January 27, 2 | 2004-01-27 |
| Ring groove for oil ring with coil expander of piston App 20020174768 - Hitosugi, Hideshi ; et al. | 2002-11-28 |
| Compression piston ring for use in internal combustion engine App 20020074733 - Negishi, Hideo ; et al. | 2002-06-20 |
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