Inventor · disambiguated record
Masashi Sugiya
Also filed as: SUGIYA MASASHI
18 granted patents·7 pending applications·71 citations·filing 1988–2023
92Inventor score
Top patents by PatentIndex Score
25 records- 0176US8198471B22, 2′-bis (dialkylphosphino) biphenyl compound, production method thereof, and metal complex comprising the compound as ligandTAMURA KEN·Filed 2010·Granted Jun 12, 2012·3 cites·7 claims
- 0266US8957233B2Method for producing optically active 1,2-bis(dialkylphosphino)benzene derivativeTAMURA KEN·Filed 2011·Granted Feb 17, 2015·1 cites·2 claims
- 0362US5925784ABis (1,1,3,3-tetramethylbutyl) phosphinic acid compound, a production method thereof and an extracting agentNIPPON CHEMICAL IND·Filed 1996·Granted Jul 20, 1999·14 cites·5 claims
- 0461US2025171687A1Method for producing quantum dotNIPPON CHEMICAL IND·Filed 2023·Application pending·0 cites
- 0559US5354918AHighly pure monoalkylphosphineSHINETSU CHEMICAL CO·Filed 1993·Granted Oct 11, 1994·10 cites·9 claims
- 0659US2009069472A1Antistatic agents for resins, antistatic resin compositions, and antistatic resin molded productsNIPPON CHEMICAL IND·Filed 2008·Application pending·0 cites
- 0756US5892120AHighly pure monoalkylphosphine and method for producing sameNIPPON CHEMICAL IND·Filed 1997·Granted Apr 6, 1999·6 cites·4 claims
- 0856US5872279ABis(1,1,3,3-tetramethylbutyl) phosphinic acid compound, a production method thereof and an extracting agentNIPPON CHEMICAL IND·Filed 1998·Granted Feb 16, 1999·11 cites·5 claims
- 0953US6649728B2Catalyst for curing epoxy resins, method for making the same, epoxy resin composition, and powder coating compositionNIPPON CHEMICAL IND·Filed 2002·Granted Nov 18, 2003·2 cites·6 claims
- 1053US2009118442A1Curing accelerator for deep-ultraviolet-transmitting epoxy resin, deep-ultraviolet-transmitting epoxy resin composition, and deep-ultraviolet-transmitting epoxy resin cured productNIPPON CHEMICAL IND·Filed 2007·Application pending·0 cites
- 1151US5147409AAgent and method for treating wool fibers wherein the agent is tris(hydroxypropyl)phosphine and/or alkylene oxide addition products thereofNIPPON CHEMICAL IND·Filed 1988·Granted Sep 15, 1992·8 cites·12 claims
- 1250US2009036599A1Powdery three-dimensionally crosslinked clathrate particle, process of producing same, dispersion, and resin compositionNIPPON CHEMICAL IND·Filed 2007·Application pending·0 cites
- 1349US8114212B2Powdery silica composite particles and process for producing the same, silica composite particle dispersion, and resin compositionSAWADA HIDEO·Filed 2009·Granted Feb 14, 2012·0 cites·15 claims
- 1449US5536880AMonoalkylphosphine and method of producing the sameNIPPON CHEMICAL IND·Filed 1994·Granted Jul 16, 1996·4 cites·8 claims
- 1548US2010267980A1Curing accelerator for deep-ultraviolet-transmitting epoxy resin, deep-ultraviolet-transmitting epoxy resin composition, and deep-ultraviolet-transmitting epoxy resin cured productNIPPON CHEMICAL IND·Filed 2010·Application pending·0 cites
- 1647US2006100326A1Antistatic agents for resins, antistatic resin compositions, and molding of antistatic resinsNAGASE & CO LTD·Filed 2003·Application pending·0 cites
- 1745US6080885AProcess for preparing a phosphonium salt compound having an acryl groupNIPPON CHEMICAL IND·Filed 1998·Granted Jun 27, 2000·3 cites·3 claims
- 1843US2009047518A1Powdery silica composite particles, process of producing same, silica composite particle dispersion, and resin compositionNIPPON CHEMICAL IND·Filed 2007·Application pending·0 cites
- 1942US6121494AMethod of producing optically active vinyl phosphine oxideNIPPON CHEMICAL IND·Filed 1999·Granted Sep 19, 2000·2 cites·4 claims
- 2039US5663419ABifunctional alkyl phosphine oxide and production method thereofNIPPON CHEMICAL IND·Filed 1996·Granted Sep 2, 1997·5 cites·11 claims
- 2137US6025525AHighly pure monoalkylphosphine and method for producing sameNIPPON CHEMICAL IND·Filed 1998·Granted Feb 15, 2000·1 cites·3 claims
- 2233US6177591B1Optically active phosphine oxide carboxylic acid and method of producing the sameNIPPON CHEMICAL IND·Filed 1999·Granted Jan 23, 2001·0 cites·1 claims
- 2332US6214196B1Method of producing bisphosphine oxideNIPPON CHEMICAL IND·Filed 1999·Granted Apr 10, 2001·1 cites·1 claims
- 2430US6603032B11,2-bis(methyl(1,1,3,3-tetramethylbutyl)-phosphino)ethane, process the preparation thereof, transition metal complexes containing the same as a ligand and uses thereofNIPPON CHEMICAL IND·Filed 1999·Granted Aug 5, 2003·0 cites·7 claims
- 2529US5679849AMethod of producing a bis(2-carboxyethyl)alkyl phosphine oxide and a derivative thereofNIPPON CHEMICAL IND·Filed 1996·Granted Oct 21, 1997·0 cites·9 claims
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