Inventor · disambiguated record
Shunjiro Watanabe
Also filed as: WATANABE SHUNJIRO
4 granted patents·2 pending applications·22 citations·filing 1999–2013
69Inventor score
Top patents by PatentIndex Score
6 records- 0182US7588801B2Chromium-free rust inhibitive treatment method for metal products having zinc surface and metal products treated therebyINST TECH PRECISION ELECT·Filed 2007·Granted Sep 15, 2009·7 cites·6 claims
- 0257US2011165426A1Aqueous solution for blackening chemical conversion coating of zinc or zinc alloy surface and method of forming blackened anti-corrosion coating film using the aqueous solution for the chemical conversion coatingINST TECH PRECISION ELECT·Filed 2009·Application pending·0 cites
- 0354US8367201B2Chromium-free rust-inhibitive surface treatment agent for metal parts with zinc surfaces and metal parts with zinc surfaces coated with rust-inhibitive surface coated filmINST TECH PRECISION ELECT·Filed 2007·Granted Feb 5, 2013·0 cites·11 claims
- 0450US2006166013A1Chromium-free rust inhibitive treatment method for metal products having zinc surface and metal products treated therebyHODEN SEIMITSU KAKO KENYUSHO C·Filed 2006·Application pending·0 cites
- 0544US8623503B2Chromium-free rust-inhibitive surface treatment agent for metal parts with zinc surfaces and metal parts with zinc surfaces coated with rust-inhibitive surface coated filmINST TECH PRECISION ELECT·Filed 2013·Granted Jan 7, 2014·0 cites·12 claims
- 0637US6332615B1Set of cards used for playing a card game simulating fishingCOMS CORP·Filed 1999·Granted Dec 25, 2001·15 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →