Inventor · disambiguated record
Akira Kumazawa
Also filed as: KUMAZAWA AKIRA
11 granted patents·6 pending applications·15 citations·filing 2001–2019
83Inventor score
Files withTOKYO OHKA KOGYO CO LTD11YOKOI SHIGERU2ETO TAKAHIRO1KUMAZAWA AKIRA1SHOWA DENKO MATERIALS CO LTD1
Top patents by PatentIndex Score
17 records- 0188US10093815B2Surface treatment agent and surface treatment methodTOKYO OHKA KOGYO CO LTD·Filed 2016·Granted Oct 9, 2018·7 cites·5 claims
- 0272US9796879B2Film-forming materialTOKYO OHKA KOGYO CO LTD·Filed 2014·Granted Oct 24, 2017·1 cites·10 claims
- 0365US8206509B2Cleaning liquid for lithography and method for forming wiringETO TAKAHIRO·Filed 2010·Granted Jun 26, 2012·3 cites·5 claims
- 0454US9868090B2Process for preparing chemical liquid of silylating agent and surface treatment methodTOKYO OHKA KOGYO CO LTD·Filed 2016·Granted Jan 16, 2018·0 cites·15 claims
- 0553US11187294B2Friction member, friction material composition, friction material, and vehicleSHOWA DENKO MATERIALS CO LTD·Filed 2019·Granted Nov 30, 2021·0 cites·12 claims
- 0653US8623236B2Titanium nitride-stripping liquid, and method for stripping titanium nitride coating filmKUMAZAWA AKIRA·Filed 2008·Granted Jan 7, 2014·1 cites·23 claims
- 0749US6897011B2Photosensitive composition for sandblasting and photosensitive film using the sameTOKYO OHKA KOGYO CO LTD·Filed 2004·Granted May 24, 2005·2 cites·1 claims
- 0849US2007105035A1Photoresist stripping solution and method of treating substrate with the sameYOKOI SHIGERU·Filed 2006·Application pending·0 cites
- 0947US7563146B2Unbaked laminate for producing front plate of plasma display device, and method for producing front plate of plasma display deviceTOKYO OHKA KOGYO CO LTD·Filed 2004·Granted Jul 21, 2009·1 cites·14 claims
- 1046US2006063688A1Photoresist stripping solution and method of treating substrate with the sameYOKOI SHIGERU·Filed 2005·Application pending·0 cites
- 1145US9703202B2Surface treatment process and surface treatment liquidTOKYO OHKA KOGYO CO LTD·Filed 2016·Granted Jul 11, 2017·0 cites·10 claims
- 1245US2015184047A1Method for modifying substrate surface, modifying film and coating solution used for modification of substrate surfaceTOKYO OHKA KOGYO CO LTD·Filed 2013·Application pending·0 cites
- 1340US7554270B2Composition for dielectric of plasma display panel, laminate for dielectric, and method for forming the dielectricTOKYO OHKA KOGYO CO LTD·Filed 2004·Granted Jun 30, 2009·0 cites·5 claims
- 1437US2020062968A1Surface treatment agent and surface treatment methodTOKYO OHKA KOGYO CO LTD·Filed 2019·Application pending·0 cites
- 1536US2002076652A1Photosensitive composition for sandblasting and photosensitive film using the sameFiled 2001·Application pending·0 cites
- 1635US6506540B2Photopolymerizable compositionTOKYO OHKA KOGYO CO LTD·Filed 2001·Granted Jan 14, 2003·0 cites·3 claims
- 1735US2018254182A1Surface treatment method and surface treatment liquidTOKYO OHKA KOGYO CO LTD·Filed 2018·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Akira Kumazawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →