Inventor
KOYAMA YOSHINARI
JP49 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA YOSHINARI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NISSAN CHEMICAL IND LTD
29 patentsUS6296943B1Oct 2, 2001
Method for producing composite sol, coating composition, and optical element
NISSAN CHEMICAL IND LTD64 citations96
US5906679AMay 25, 1999
Coating compositions employing zinc antimonate anhydride particles
NISSAN CHEMICAL IND LTD26 citations93
US6626987B1Sep 30, 2003
Modified metal oxide sol, coating composition and optical element
NISSAN CHEMICAL IND LTD39 citations92
US6355694B1Mar 12, 2002
Modified stannic oxide—zirconium oxide complex sol and preparation method thereof
NISSAN CHEMICAL IND LTD23 citations92
US6291535B1Sep 18, 2001
Silica-magnesium fluoride hydrate composite sols and process for their preparation
NISSAN CHEMICAL IND LTD48 citations92
US6040372AMar 21, 2000
Hydrated zinc stannate sols, coating compositions and optical elements
NISSAN CHEMICAL IND LTD16 citations92
US7553474B2Jun 30, 2009
Method for producing metal oxide sol
NISSAN CHEMICAL IND LTD10 citations84
US7208229B2Apr 24, 2007
Modified metal oxide sol, coating compositions and optical element
NISSAN CHEMICAL IND LTD11 citations84
US7563827B2Jul 21, 2009
Modified stannic oxide sol, stannic oxide-zirconium oxide composite sol, coating composition and optical element
NISSAN CHEMICAL IND LTD11 citations82
US5891362AApr 6, 1999
Hydrated zinc stannate sols, coating compositions and optical elements
NISSAN CHEMICAL IND LTD15 citations82
US6001164ADec 14, 1999
Hydrated zinc stannate sols, coating compositions and optical elements
NISSAN CHEMICAL IND LTD10 citations74
US5891565AApr 6, 1999
Sol and fine powder of sodium magnesium fluoride and processes for their production
NISSAN CHEMICAL IND LTD10 citations74
US5766512AJun 16, 1998
Zinc antimonate anhydride and method for producing same
NISSAN CHEMICAL IND LTD7 citations74
US5707552AJan 13, 1998
Zinc antimonate anhydride and method for producing same
NISSAN CHEMICAL IND LTD10 citations74
US5667725ASep 16, 1997
Sol and fine powder of sodium magnesium fluoride and processes for their production
NISSAN CHEMICAL IND LTD6 citations74
US5552083ASep 3, 1996
Sol and fine powder of sodium magnesium fluoride and processes for their production
NISSAN CHEMICAL IND LTD12 citations74
US7556682B2Jul 7, 2009
Zirconium oxide-tin oxide composite sol, coating composition and optical member
NISSAN CHEMICAL IND LTD6 citations72
US8034846B2Oct 11, 2011
Method for producing modified zirconium oxide-tin oxide composite sol
NISSAN CHEMICAL IND LTD7 citations71
US6646015B1Nov 11, 2003
Process for producing diantimony pentoxide sol
NISSAN CHEMICAL IND LTD2 citations62
US7737187B2Jun 15, 2010
Process for producing inorganic oxide organosol
NISSAN CHEMICAL IND LTD2 citations61
US7919016B2Apr 5, 2011
Conductive tin oxide sol and process for producing same
NISSAN CHEMICAL IND LTD1 citations52
US7291652B2Nov 6, 2007
Diantimony pentoxide sol and method for its preparation
NISSAN CHEMICAL IND LTD0 citations52
US9534144B2Jan 3, 2017
Film-forming composition
NISSAN CHEMICAL IND LTD1 citations51
US12286562B2Apr 29, 2025
Metal oxide particles containing titanium oxide coated with silicon dioxide-stannic oxide complex oxide
NISSAN CHEMICAL IND LTD0 citations49
US11634589B2Apr 25, 2023
Coating composition and optical member
NISSAN CHEMICAL IND LTD0 citations49
US10669426B2Jun 2, 2020
Inorganic oxide microparticles having amphiphilic organic silane compound bonded thereto, organic solvent dispersion thereof, and composition for film formation
NISSAN CHEMICAL IND LTD0 citations48
US9023147B2May 5, 2015
Method for producing rutile type titanium oxide sol
NISSAN CHEMICAL IND LTD0 citations48
US7476695B2Jan 13, 2009
Modified stannic oxide-zirconium oxide complex sol and method for preparing same
NISSAN CHEMICAL IND LTD0 citations40
US10676643B2Jun 9, 2020
Coating film-forming composition and process for producing the same
NISSAN CHEMICAL IND LTD0 citations36
IDEMITSU PETROCHEMICAL CO
11 patentsUS5635587AJun 3, 1997
Process for manufacturing polyarylene sulfide
IDEMITSU PETROCHEMICAL CO32 citations92
US5194580AMar 16, 1993
Process for preparing polyarylene sulfides under reduced pressure
IDEMITSU PETROCHEMICAL CO27 citations92
US5143554ASep 1, 1992
Process for washing powdery and/or granular resins and a washing device therefor
IDEMITSU PETROCHEMICAL CO34 citations91
US5856433AJan 5, 1999
Apparatus for manufacturing polyarylene sulfide and process for manufacturing polyarlene sulfide using the apparatus
IDEMITSU PETROCHEMICAL CO27 citations90
US5898061AApr 27, 1999
Continuous process for producing polyarylene sulfide
IDEMITSU PETROCHEMICAL CO27 citations89
US6750319B2Jun 15, 2004
Process for producing polyarylene sulfide and apparatus used therein
IDEMITSU PETROCHEMICAL CO17 citations84
US5583166ADec 10, 1996
Process for production of polymer particles
IDEMITSU PETROCHEMICAL CO10 citations74
US5262137ANov 16, 1993
Method for recovering lithium chloride
IDEMITSU PETROCHEMICAL CO15 citations74
US5167775ADec 1, 1992
Method for recovery of solvent used in production of polyarylene sulfide
IDEMITSU PETROCHEMICAL CO14 citations72
US5726223AMar 10, 1998
Process for production of polymer particles
IDEMITSU PETROCHEMICAL CO2 citations63
US5344973ASep 6, 1994
Process for preparation of lithium N-methylamino butyrate
IDEMITSU PETROCHEMICAL CO1 citations52
KOYAMA YOSHINARI
3 patentsUS8193253B2Jun 5, 2012
Organosol of fluoride colloid particle and method for producing the same
KOYAMA YOSHINARI0 citations47
US9150421B2Oct 6, 2015
Silane surface-treated metal oxide fine particles and production method for same
KOYAMA YOSHINARI0 citations31
US8697757B2Apr 15, 2014
Hydrophobic organic solvent-dispersed sol of anhydrous zinc antimonate colloidal particles and method for producing the same
KOYAMA YOSHINARI0 citations31