Assignee
SUGAYA NORIKAZU
JP·3 granted patents·2 pending applications·2 citations·filing 2005–2011
Top patents by PatentIndex Score
5 records- 0159US8182879B2Method for preventing elution of nickel from water-contact instrument of copper alloy by formation of a protective filmSUGAYA NORIKAZU·Filed 2005·Granted May 22, 2012·2 cites·7 claims
- 0252US8936048B2Copper and zinc elution preventing method of copper-alloy-made plumbing instrument including valve and pipe joint, copper-alloy-made plumbing instrument using the method, and film-forming agentSUGAYA NORIKAZU·Filed 2011·Granted Jan 20, 2015·0 cites·14 claims
- 0348US2008220281A1Copper alloy plumbing hardware, such as valves and tube couplings, and the treatment method for reducing elution of leadSUGAYA NORIKAZU·Filed 2008·Application pending·0 cites
- 0441US8221556B2Copper alloy plumbing hardware, such as valves and tube couplings, and the treatment method for reducing elution of leadSUGAYA NORIKAZU·Filed 2010·Granted Jul 17, 2012·0 cites·5 claims
- 0540US2010263572A1Method for preventing elution of nickel from water-contact instrument of copper alloy by formation of a protective filmSUGAYA NORIKAZU·Filed 2010·Application pending·0 cites
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