Inventor · disambiguated record
Keiji Ashitaka
Also filed as: ASHITAKA KEIJI
20 granted patents·28 pending applications·12 citations·filing 2004–2025
90Inventor score
Top patents by PatentIndex Score
48 records- 0187US12371331B2Method for producing silica solFUJIMI INC·Filed 2023·Granted Jul 29, 2025·0 cites·6 claims
- 0284US10913857B2Method for producing aluminum hydroxide-coated silicon carbide particle powder and method for producing dispersion containing the same powder and dispersing mediumFUJIMI INC·Filed 2018·Granted Feb 9, 2021·2 cites·18 claims
- 0382US11518682B2Method for producing silica solFUJIMI INC·Filed 2020·Granted Dec 6, 2022·1 cites·9 claims
- 0477US11345596B2Titanium phosphate powder, production method therefor, and white pigment for cosmeticsFUJIMI INC·Filed 2018·Granted May 31, 2022·1 cites·19 claims
- 0577US10604411B2Method for producing silica solFUJIMI INC·Filed 2016·Granted Mar 31, 2020·1 cites·10 claims
- 0676US11767224B2Method for producing silica solFUJIMI INC·Filed 2022·Granted Sep 26, 2023·0 cites·8 claims
- 0774US12378116B2Titanium phosphate powder, production method therefor, and white pigment for cosmeticsFUJIMI INC·Filed 2022·Granted Aug 5, 2025·0 cites·15 claims
- 0873US2023293402A1White pigment for cosmetics, and cosmeticFUJIMI INC·Filed 2023·Application pending·0 cites
- 0972US10570322B2Polishing compositionFUJIMI INC·Filed 2019·Granted Feb 25, 2020·1 cites·24 claims
- 1069US8226924B2Method for producing boehmite particles and method for producing alumina particlesMORINAGA HITOSHI·Filed 2009·Granted Jul 24, 2012·2 cites·13 claims
- 1169US2023404876A1White pigment for cosmetics, and cosmeticFUJIMI INC·Filed 2023·Application pending·0 cites
- 1269US2025002756A1Polishing composition and polishing methodFUJIMI INC·Filed 2024·Application pending·0 cites
- 1367US11001501B2Method for producing silica solFUJIMI INC·Filed 2020·Granted May 11, 2021·0 cites·6 claims
- 1467US2024002232A1Titanium phosphate powder and production method thereofFUJIMI INC·Filed 2023·Application pending·0 cites
- 1566US11638681B2White pigment for cosmetics, and cosmeticFUJIMI INC·Filed 2019·Granted May 2, 2023·0 cites·5 claims
- 1666US2021259937A1White pigment for cosmetics, and cosmeticFUJIMI INC·Filed 2019·Application pending·0 cites
- 1763US9157011B2Polishing compositionASHITAKA KEIJI·Filed 2011·Granted Oct 13, 2015·2 cites·4 claims
- 1863US9028574B2Polishing compositionASHITAKA KEIJI·Filed 2011·Granted May 12, 2015·2 cites·5 claims
- 1963US2024262698A1Silica solFUJIMI INC·Filed 2024·Application pending·0 cites
- 2062US2023016801A1Surface-modified colloidal silica and polishing composition containing the sameFUJIMI INC·Filed 2022·Application pending·0 cites
- 2162US2025214857A1Production method of columnar zinc oxide and columnar zinc oxideFUJIMI INC·Filed 2023·Application pending·0 cites
- 2261US2025197301A1Dispersion for forming ceramic sintered body, green sheet for forming ceramic sintered body, prepreg material forming ceramic sintered body, and ceramic sintered bodyFUJIMI INC·Filed 2023·Application pending·0 cites
- 2361US2020377371A1Method for producing silica solFUJIMI INC·Filed 2018·Application pending·0 cites
- 2460US2021145712A1White pigment for cosmetics, and cosmeticFUJIMI INC·Filed 2019·Application pending·0 cites
- 2560US2024141137A1Powder, filler, composition, and method for producing fillerFUJIMI INC·Filed 2021·Application pending·0 cites
- 2659US2025304451A1Method for producing silica sol and silica solFUJIMI INC·Filed 2025·Application pending·0 cites
- 2758US2024182305A1Plate-like titanium pyrophosphate and method for producing the sameFUJIMI INC·Filed 2022·Application pending·0 cites
- 2857US11760697B2Dispersion for silicon carbide sintered body, green sheet for silicon carbide sintered body and prepreg material for silicon carbide sintered body using the same, and manufacturing method thereofFUJIMI INC·Filed 2019·Granted Sep 19, 2023·0 cites·16 claims
- 2957US11530335B2Modified colloidal silica and method for producing the same, and polishing agent using the sameFUJIMI INC·Filed 2019·Granted Dec 20, 2022·0 cites·7 claims
- 3055US2021087067A1Method for producing silica solFUJIMI INC·Filed 2020·Application pending·0 cites
- 3155US2025197674A1Polishing composition and polishing method using the sameFUJIMI INC·Filed 2023·Application pending·0 cites
- 3255US2023313011A1Sulfonic acid-modified colloidal silicaFUJIMI INC·Filed 2023·Application pending·0 cites
- 3355US2023219857A1Hardening aid solution, self-hardening material, and hardened body, and methods for producing sameFUJIMI INC·Filed 2021·Application pending·0 cites
- 3453US2020308010A1Method for manufacturing silica solFUJIMI INC·Filed 2020·Application pending·0 cites
- 3553US2024050328A1Soft focus filler, cosmeticFUJIMI INC·Filed 2021·Application pending·0 cites
- 3652US2023390166A1Powder, white pigment for cosmetic, and cosmeticFUJIMI INC·Filed 2021·Application pending·0 cites
- 3751US11499070B2Modified colloidal silica and method for producing the same, and polishing agent using the sameFUJIMI INC·Filed 2016·Granted Nov 15, 2022·0 cites·8 claims
- 3850US12503403B2Method of producing aluminum hydroxide-coated SiC particles, dispersion solution and molded body containing same, and sintered body formed using sameFUJIMI INC·Filed 2019·Granted Dec 23, 2025·0 cites·10 claims
- 3946US11167995B2Method for producing cationically modified silica and cationically modified silica dispersionFUJIMI INC·Filed 2017·Granted Nov 9, 2021·0 cites·3 claims
- 4046US2006193796A1Method for refining ultraviolet absorbent, ultraviolet absorbent and cosmetic materialMIZUOKA TAKANORI·Filed 2004·Application pending·0 cites
- 4146US2022096342A1Titanium phosphate powder and white pigment for cosmetic preparationsFUJIMI INC·Filed 2020·Application pending·0 cites
- 4245US2022267644A1Method for filtering polishing additive-containing liquid, polishing additive-containing liquid, polishing composition, method for producing polishing composition, and filterFUJIMI INC·Filed 2020·Application pending·0 cites
- 4345US2017342304A1Polishing compositionFUJIMI INC·Filed 2016·Application pending·0 cites
- 4443US10941318B2Method for producing cationically modified silica, cationically modified silica dispersion, method for producing polishing composition using cationically modified silica, and polishing composition using cationically modified silicaFUJIMI INC·Filed 2017·Granted Mar 9, 2021·0 cites·14 claims
- 4543US9611406B2Polishing composition, and polishing method and substrate production method using sameFUJIMI INC·Filed 2012·Granted Apr 4, 2017·0 cites·12 claims
- 4643US2021380813A1Coated silicon carbide particle powderFUJIMI INC·Filed 2019·Application pending·0 cites
- 4738US2017022392A1Polishing composition for hard materialsFUJIMI INC·Filed 2015·Application pending·0 cites
- 4837US2020058482A1Method for polishing silicon carbide substateFUJIMI INC·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →