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Inventor

Yoshinari Koyama

Inventor
Sodegaura, JP

Overview

47→
Patents
1992–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 47 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C01Pprimary
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds13%
B82YSpecific uses or applications of nanostructures11%
C01GCompounds containing metals not covered by subclasses c01d or c01f11%
Y10TTechnical subjects covered by former us classification7%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C09DCoating compositions, e.g. paints, varnishes or lacquers6%
G02BOptical elements, systems or apparatus6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
PatentTitleYear
10,676,643Coating film-forming composition and process for producing the same202010,669,426Inorganic oxide microparticles having amphiphilic organic silane compound bonded thereto, organic solvent dispersion thereof, and composition for film formation20209,534,144'Film-forming composition'20179,243,165'Film-forming composition'20169,150,421'Silane surface-treated metal oxide fine particles and production method for same'20159,023,147'Method for producing rutile type titanium oxide sol'20158,747,542'Method for producing rutile titanium oxide sol'20148,697,757'Hydrophobic organic solvent-dispersed sol of anhydrous zinc antimonate colloidal particles and method for producing the same'20148,193,253'Organosol of fluoride colloid particle and method for producing the same'20128,034,846'Method for producing modified zirconium oxide-tin oxide composite sol'20117,919,016'Conductive tin oxide sol and process for producing same'20117,737,187'Process for producing inorganic oxide organosol'20107,563,827'Modified stannic oxide sol, stannic oxide-zirconium oxide composite sol, coating composition and optical element'20097,556,682'Zirconium oxide-tin oxide composite sol, coating composition and optical member'20097,553,474'Method for producing metal oxide sol'20097,476,695'Modified stannic oxide-zirconium oxide complex sol and method for preparing same'20097,291,652'Diantimony pentoxide sol and method for its preparation'20077,208,229'Modified metal oxide sol, coating compositions and optical element'20077,018,574'Process for removing volatile components in polyarylene sulfide'20066,750,319'Process for producing polyarylene sulfide and apparatus used therein'20046,713,170'Hard coating material and film comprising the same'20046,646,015'Process for producing diantimony pentoxide sol'20036,626,987'Modified metal oxide sol, coating composition and optical element'20036,355,694'Modified stannic oxidezirconium oxide complex sol and preparation method thereof'20026,310,987'Image processor'20016,306,513'Optical element having cured film'20016,296,943'Method for producing composite sol, coating composition, and optical element'20016,291,535'Silica-magnesium fluoride hydrate composite sols and process for their preparation'20016,040,372'Hydrated zinc stannate sols, coating compositions and optical elements'20006,001,164'Hydrated zinc stannate sols, coating compositions and optical elements'19995,906,679'Coating compositions employing zinc antimonate anhydride particles'19995,898,061'Continuous process for producing polyarylene sulfide'19995,891,565'Sol and fine powder of sodium magnesium fluoride and processes for their production'19995,891,362'Hydrated zinc stannate sols, coating compositions and optical elements'19995,856,433'Apparatus for manufacturing polyarylene sulfide and process for manufacturing polyarlene sulfide using the apparatus'19995,766,512'Zinc antimonate anhydride and method for producing same'19985,726,223'Process for production of polymer particles'19985,707,552'Zinc antimonate anhydride and method for producing same'19985,667,725'Sol and fine powder of sodium magnesium fluoride and processes for their production'19975,635,587'Process for manufacturing polyarylene sulfide'19975,583,166'Process for production of polymer particles'19965,552,083'Sol and fine powder of sodium magnesium fluoride and processes for their production'19965,344,973'Process for preparation of lithium N-methylamino butyrate'19945,262,137'Method for recovering lithium chloride'19935,194,580'Process for preparing polyarylene sulfides under reduced pressure'19935,167,775'Method for recovery of solvent used in production of polyarylene sulfide'19925,143,554'Process for washing powdery and/or granular resins and a washing device therefor'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2004Patents assigned to IDEMITSU PETROCHEMICAL CO (11)· patent assignee history
1992–1999Based in Ichihara, JP· patent location history
1994–2009Based in Chiba, JP· patent location history
1996–2020Patents assigned to NISSAN CHEMICAL IND LTD (33)· patent assignee history
1996–2002Based in Funabashi, JP· patent location history
2001Based in Tokyo, JP· patent location history
2003–2020Based in Sodegaura, JP· patent location history
2012–2016Patents assigned to KOYAMA YOSHINARI (5)· patent assignee history
2012–2015Patents assigned to ASADA MOTOKO (2)· patent assignee history
2012–2014Patents assigned to FUJIMOTO OSAMU (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NISSAN CHEMICAL IND LTD331996–2020
IDEMITSU PETROCHEMICAL CO111992–2004
KOYAMA YOSHINARIself52012–2016
ASADA MOTOKO22012–2015
FUJIMOTO OSAMU22012–2014
Locations
LocationPatentsSpan
Sodegaura, JP172003–2020
Funabashi, JP131996–2002
Ichihara, JP91992–1999
Chiba, JP71994–2009
Tokyo, JP12001