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Nippon Piston Ring Co Ltd
Nippon Piston Ring Co Ltd_20131212

Nippon Piston Ring Co Ltd patents

Recent patent applications related to Nippon Piston Ring Co Ltd. Nippon Piston Ring Co Ltd is listed as an Agent/Assignee. Note: Nippon Piston Ring Co Ltd may have other listings under different names/spellings. We're not affiliated with Nippon Piston Ring Co Ltd, we're just tracking patents.

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | Nippon Piston Ring Co Ltd-related inventors

Date Nippon Piston Ring Co Ltd patents (updated weekly) - BOOKMARK this page
11/23/17Method for producing piston ring with recess
11/16/17Titanium alloy
10/26/17Coating film, manufacturing same, and pvd device
10/05/17Medical instrument
10/05/17Coating film, manufacturing same, and pvd device
08/10/17Combined oil ring
06/22/17Valve seat insert for internal combustion engine having excellent wear resistance
06/15/17Piston ring
01/05/17Piston ring and manufacturing method therefor
11/10/16Assembly of internal combustion engine valve and valve seat
06/30/16Highly heat conductive piston ring for internal combustion engine
01/07/16Hard carbon coating film
12/24/15Highly wear-resistant valve seat for use in internal combustion engine and manufacturing method therefor
10/01/15Iron-base sintered alloy material for valve seat insert and manufacturing the same
08/13/15Piston ring
07/30/15Three-dimensional axial gap type rotating electric machine
04/23/15Rotating electric machine
04/02/15Rotating electric machine
05/15/14Rotating electrical machine
05/01/14Rotating electrical machine
03/06/14Combined oil ring
12/12/13Piston ring
11/28/13Linear motor, linear dynamo, reciprocation-type compressor driving system that is powered by linear motor, and charge system that uses linear dynamo
11/21/13Titanium alloy
09/12/13Piston ring
07/25/13Rotaring electrical machine
07/25/13Rotating electrical machine
07/18/13Internal combustion engine oil ring
02/28/13Internal combustion engine oil ring
02/21/13Piston ring
10/18/12Multi-piece oil ring
08/16/12Piston ring
02/03/11Iron-based sintered alloy for valve seat, and valve seat for internal combustion engine
12/23/10Combination structure of piston ring and cylinder liner for internal combustion engine
10/07/10Steel products for piston rings and piston rings
09/23/10Flake graphite cast iron and production method thereof
09/09/10Method for manufacturing a shaft member having a sintered part bonded thereto and a camshaft for an internal combustion engine
09/10/09Piston ring
12/12/13Piston ring

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009


This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Nippon Piston Ring Co Ltd in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Nippon Piston Ring Co Ltd with additional patents listed. Browse our Agent directory for other possible listings. Page by