Inventor · disambiguated record
Toshihisa Kumakura
Also filed as: KUMAKURA TOSHIHISA
5 granted patents·39 citations·filing 1989–2005
79Inventor score
Files withHITACHI CHEMICAL CO LTD5
Top patents by PatentIndex Score
5 records- 0180US7740936B2Adhesion assisting agent fitted metal foil, and printed wiring board using thereofHITACHI CHEMICAL CO LTD·Filed 2005·Granted Jun 22, 2010·11 cites·24 claims
- 0271US7572503B2Method for preparing an insulating resin composition, insulating resin composition, multilayer wiring board and process for producing the sameHITACHI CHEMICAL CO LTD·Filed 2005·Granted Aug 11, 2009·4 cites·9 claims
- 0368US6979712B2Method for preparing an insulating resin composition, insulating resin composition, multilayer wiring board and process for producing the sameHITACHI CHEMICAL CO LTD·Filed 2004·Granted Dec 27, 2005·11 cites·4 claims
- 0432US5066691AAdhesive composition for metal-clad laminatesHITACHI CHEMICAL CO LTD·Filed 1989·Granted Nov 19, 1991·8 cites·4 claims
- 0528US6841605B1Adhesive composition for metal foil, and adhesive-coated metal foil, metal-clad laminate and related materials using the sameHITACHI CHEMICAL CO LTD·Filed 1999·Granted Jan 11, 2005·5 cites·8 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →