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Kabushiki Kaisha Riken patents

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

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "K" | Kabushiki Kaisha Riken-related inventors




Date Kabushiki Kaisha Riken patents (updated weekly) - BOOKMARK this page
05/25/17 new patent  Sintered valve seat and its production method
05/18/17Piston ring for internal combustion engine
03/30/17Valve seat of sintered iron-based alloy
03/16/17Seal member
02/16/17Roller type rocker arm
01/12/17Piston ring and its production method
10/20/16Piston ring
09/15/16Piston ring for internal combustion engine
08/25/16Piston ring
08/18/16Seal ring
08/18/16Piston ring
08/18/16Piston ring and its production method
08/18/16Seal ring
08/11/16Combination of cylinder bore and piston ring
07/28/16Pressure ring
06/23/16Piston ring and producing the same
06/09/16Spheroidal graphite cast iron
06/09/16Sintered alloy valve guide and its production method
02/25/16Hard composite chromium plating film and sliding member coated with such film
02/04/16Seal device
12/31/15Cast iron and brake component
11/19/15Piston ring sprayed coating, piston ring, and producing piston ring sprayed coating
10/29/15Piston ring
10/22/15Combination of cylinder and piston ring
10/01/15Resin composition and sliding member using same
08/13/15Piston ring
07/16/15Taper-faced compression ring and wire therefor
07/02/15Combined oil control ring
06/25/15Piston ring
06/18/15Combined oil control ring
06/04/15Sintered iron-based alloy valve seat
05/28/15Combined oil control ring
05/21/15Combination of cylinder and piston ring
03/26/15High rigid spheroidal graphite cast iron
03/26/15Resin composition and seal member
03/05/15Piston ring for internal combustion engine
01/01/15Cast iron and brake part
12/25/14Fuel electrode doubling as support of solid oxide fuel cell and fuel-electrode-supported solid oxide fuel cell
12/04/14Radio wave absorber
10/02/14Magnetoplumbite-type hexagonal ferrite
09/18/14Combined oil control ring
07/31/14Fuel electrode doubling as support of solid oxide fuel cell and producing the same
07/03/14Resin composition and sliding member using same
05/22/14Piston ring
05/08/14Piston ring
05/01/14Compression ring and its production method
02/20/14Piston ring
01/30/14Seal ring
01/23/14Multi-piece oil ring
11/21/13Combined piston ring
11/07/13Valve seat made of iron-based sintered alloy
10/03/13Housing type pipe joint
05/23/13Seal ring
03/14/13Compression ring and its production method
11/08/12Member having hydrogen-containing, hard, amorphous carbon coating and its production method
09/27/12Coating composition for engine parts and engine part comprising it







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