Inventor · disambiguated record
Yohei Koyama
Also filed as: KOYAMA YOHEI
4 granted patents·4 pending applications·2 citations·filing 2012–2023
57Inventor score
Top patents by PatentIndex Score
8 records- 0168US10100220B2Water-based coating composition and method for forming multilayer coating film using said compositionKOYAMA YOHEI·Filed 2012·Granted Oct 16, 2018·2 cites·8 claims
- 0258US2023357485A1Water-dispersible polyisocyanate, aqueous polyurethane resin composition, and articleMITSUI CHEMICALS INC·Filed 2021·Application pending·0 cites
- 0358US2023365741A1Water-dispersible polyisocyanate, aqueous polyurethane resin composition, and articleMITSUI CHEMICALS INC·Filed 2021·Application pending·0 cites
- 0454US12359063B2Polycarbodiimide composition, producing method of polycarbodiimide composition, aqueous dispersion composition, solution composition, resin composition, resin cured product, and carbodiimide cross-linking agent for fiber treatmentMITSUI CHEMICALS INC·Filed 2019·Granted Jul 15, 2025·0 cites·12 claims
- 0552US2025318607A1Fastener stringer and method of producing the sameYKK CORP·Filed 2022·Application pending·0 cites
- 0648US9856397B2Method for forming a multilayer coated filmBASF COATINGS GMBH·Filed 2014·Granted Jan 2, 2018·0 cites·4 claims
- 0747US11528966B2Molded surface fastener and manufacturing method of molded surface fastenerYKK CORP·Filed 2018·Granted Dec 20, 2022·0 cites·11 claims
- 0847US2025089858A1Rail fastener and method of producing the same, and double fastenerYKK CORP·Filed 2023·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →