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DOWA HOLDINGS CO LTD

Overview
  • Total Patents
    451
  • GoodIP Patent Rank
    29,444
  • Filing trend
    ⇩ 16.0%
About

DOWA HOLDINGS CO LTD has a total of 451 patent applications. It decreased the IP activity by 16.0%. Its first patent ever was published in 1999. It filed its patents most often in Japan, China and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, materials and metallurgy and semiconductors are NAT INST ADVANCED IND SCIENCE & TECH, COMMISSARIAT L ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES and SUZHOU INST NANO TECH & NANO BIONICS CAS.

Patent filings per year

Chart showing DOWA HOLDINGS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sato Kimitaka 25
#2 Toba Ryuichi 20
#3 Osanai Hideyo 18
#4 Nagatomi Akira 17
#5 Ishikawa Yuichi 16
#6 Tagami Koji 15
#7 Aiki Yoshiaki 14
#8 Kodama Daisuke 14
#9 Miyashita Masahito 14
#10 Saito Hirotoshi 14

Latest patents

Publication Filing date Title
JP2020132515A Solidified body of neutralized schwertmannite and its production method, as well as cleaning method with solidified body of neutralized schwertmannite
JP2020033599A Boron nitride vanadium film coated member and method for manufacturing the same
JP2019104021A Clad material and manufacturing method thereof
JP2019029536A Group iii nitride epitaxial substrate, electron beam excitation type light-emitting epitaxial substrate, method of manufacturing them, and electron beam excitation type light-emitting device
JP2018193282A Graphene oxide structure and method for producing the same
JP2018166033A Silver nanowire ink and method for producing transparent conductive film
JP2018159097A Method of electrolytic refining of copper
JP2018150063A Cap opening and closing jig of container
JP2018053408A Metal composite carbon nano-tube twist yarn and method for producing the same
JP2018047397A Heavy metal immobilization method and method for inhibiting migration of heavy metal to plant
JP2017212316A Metal-ceramic bonding substrate and manufacturing method thereof
JP2017206747A Electrolytic extraction method of non-ferrous metal, anode used therefor and manufacturing method of the anode
JP2017101286A Copper powder, method for producing copper powder and conductive paste
JP2016048789A Manufacturing method of aluminum-ceramic joined body
JP2017065932A Composite oxide and manufacturing method therefor
JP2017054255A Rfid tag substrate and rfid tag using paper substrate
JP2016201198A Ultraviolet light-emitting device
JP2016185893A Method for producing gallium oxide aggregates, and gallium oxide aggregates
JP2015180772A Production method of silver nanowire, silver nanowire, and ink using the same
JP2016069708A Iron powder for surface finishing and method for producing the same