Akimoto; Naoyuki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Akimoto; Naoyuki.The latest application filed is for "method for producing piston ring with recess".
- Akimoto; Naoyuki - Saitama JP
- AKIMOTO; Naoyuki - Saitama-shi JP
| Patent | Date |
|---|---|
| Method for producing piston ring with recess Grant 11,047,479 - Fujimura , et al. June 29, 2 | 2021-06-29 |
| Method For Producing Piston Ring With Recess App 20200080638 - FUJIMURA; Kazuhiro ; et al. | 2020-03-12 |
| Method for producing piston ring with recess Grant 10,514,097 - Fujimura , et al. Dec | 2019-12-24 |
| Method For Producing Piston Ring With Recess App 20170335965 - FUJIMURA; Kazuhiro ; et al. | 2017-11-23 |
| Piston ring Grant 9,464,717 - Ito , et al. October 11, 2 | 2016-10-11 |
| Piston Ring App 20130043659 - Ito; Michihiro ; et al. | 2013-02-21 |
| Piston Ring App 20120205876 - Fujimura; Kazuhiro ; et al. | 2012-08-16 |
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