Inventor
TAMURA SEIKI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “TAMURA SEIKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DOW CORNING TORAY CO LTD
14 patentsUS9994680B2Jun 12, 2018
Co-modified organopolysiloxane, and treatment agent and external use preparation comprising the same
DOW CORNING TORAY CO LTD2 citations72
US9975999B2May 22, 2018
Liquid organopolysiloxane and uses thereof
DOW CORNING TORAY CO LTD3 citations72
US9783643B2Oct 10, 2017
Silicone modified by long-chain hydrocarbon group-containing diglycerin derivative, and use thereof
DOW CORNING TORAY CO LTD2 citations72
US10717872B2Jul 21, 2020
Polyether-polysiloxane block copolymer composition, surfactant and foam stabilizer including same, polyurethane foam-forming composition, cosmetic, and preparation method thereof
DOW CORNING TORAY CO LTD4 citations70
US7943720B2May 17, 2011
Method of manufacturing purified products of liquid medium-chain alkyl-modified polydimethysiloxane and cosmetics prepared therefrom
DOW CORNING TORAY CO LTD2 citations61
US7709671B2May 4, 2010
Deodorized polyether-modified polysiloxane composition, method for producing the same, and cosmetic containing the same
DOW CORNING TORAY CO LTD3 citations60
US10174170B2Jan 8, 2019
Method for producing liquid high-purity polyhydric alcohol derivative-modified silicone or composition thereof
DOW CORNING TORAY CO LTD1 citations54
US9688821B2Jun 27, 2017
Method of producing a low odor glycerin derivative-modified silicone or a composition comprising the same
DOW CORNING TORAY CO LTD1 citations52
US10085928B2Oct 2, 2018
Diglycerin derivate-modified silicone, emulsifier for water-in-oil emulsion using the same, external use preparaton, and cosmetic composition
DOW CORNING TORAY CO LTD1 citations51
US9480630B2Nov 1, 2016
Co-modified organopolysiloxane, emulsifier for water-in-oil emulsion, external use preparation, and cosmetic composition using the same
DOW CORNING TORAY CO LTD1 citations51
US9663432B2May 30, 2017
High-purity monoalkenyl-containing glycerin derivative and method of manufacturing same
DOW CORNING TORAY CO LTD0 citations50
US10406092B2Sep 10, 2019
Method for producing transparent or semi-transparent liquid glycerin-derivative-modified silicone composition
DOW CORNING TORAY CO LTD0 citations40
US10066060B2Sep 4, 2018
Production method for high-purity organosilicon compound
DOW CORNING TORAY CO LTD0 citations40
US9988499B2Jun 5, 2018
Method for producing liquid high-purity sugar derivative-modified silicone or composition thereof
DOW CORNING TORAY CO LTD0 citations36
TAMURA SEIKI
8 patentsUS8784787B2Jul 22, 2014
Co-modified organopolysiloxane
TAMURA SEIKI24 citations92
US8715626B2May 6, 2014
Cosmetic for hair containing co-modified organopolysiloxane
TAMURA SEIKI9 citations83
US9585832B2Mar 7, 2017
Organopolysiloxane elastomer modified with mono-/diglycerin derivative, and use therefor
TAMURA SEIKI2 citations72
US9580600B2Feb 28, 2017
Thickening or gelling agent for oily raw materials
TAMURA SEIKI6 citations72
US8597619B2Dec 3, 2013
Thickener or gellant for oil materials, gel composition comprising same, and method of producing cosmetic material or topical agent
TAMURA SEIKI5 citations72
US9301913B2Apr 5, 2016
Organo polysiloxane elastomer and use therefor
TAMURA SEIKI0 citations51
US8114391B2Feb 14, 2012
Hair care composition
TAMURA SEIKI0 citations40
US9980897B2May 29, 2018
Organopolysiloxane and powder treatment agent, preparation for external use and cosmetic comprising the same
TAMURA SEIKI0 citations38
SOUDA TATSUO
3 patentsUS9463151B2Oct 11, 2016
Cosmetic containing liquid organopolysiloxane
SOUDA TATSUO4 citations71
US8877886B2Nov 4, 2014
Production method of deodorized polyoxyalkylene-modified polysiloxane composition
SOUDA TATSUO6 citations71
US9475828B2Oct 25, 2016
Organopolysiloxane and use thereof as surfactant, powder treatment agent, thickening agent of oil-based raw material or gelling agent. gel and emulsion compositions, as well as, preparations for external use and cosmetics comprising the same
SOUDA TATSUO0 citations39
DOW SILICONES CORP
2 patentsDOW TORAY CO LTD
2 patentsUS12371537B2Jul 29, 2025
Polyether-polysiloxane block copolymer composition, foam stabilizer and method for producing polyurethane foam
DOW TORAY CO LTD0 citations50
US11066534B2Jul 20, 2021
Polyether-modified silicone composition, surfactant, foam stabilizer, polyurethane foam forming composition, and cosmetic preparation including said composition, and method for producing said composition
DOW TORAY CO LTD0 citations49