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NIPPON PETROCHEMICALS CO LTD

Overview
  • Total Patents
    3,459
About

NIPPON PETROCHEMICALS CO LTD has a total of 3,459 patent applications. Its first patent ever was published in 1967. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets machines, macromolecular chemistry and polymers and organic fine chemistry are OPTATECH CORP, ATOCHEM ELF SA and ATOCHEM.

Patent filings per year

Chart showing NIPPON PETROCHEMICALS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Shimizu Isoo 292
#2 Matsumura Yasuo 252
#3 Sato Atsushi 239
#4 Kawakami Shigenobu 201
#5 Endo Keiji 144
#6 Kurihara Kazuhiko 133
#7 Yazawa Hiroshi 109
#8 Sakazume Suehiro 94
#9 Inoue Toshio 90
#10 Takashima Tsutomu 80

Latest patents

Publication Filing date Title
JP2006188713A Pressure-sensitive adhesive tape
JP2006326469A Solid phosphoric acid catalyst and method for subjecting olefin to dimerization reaction using the same
JP2006051492A Solid phosphoric acid catalyst and method of dimerizing olefin with the same
CN1946800A All aromatic liquid crystal polyester resin composition and optical pickup lens holder
JP2006296463A Ground fabric for curtain, and curtain
JP2005330468A All aromatic liquid crystal polyester resin composition and optical pickup lens holder
JP2006233377A Nonwoven fabric having function of photocatalyst imparted thereto and method for producing the same
JP2006233376A Nonwoven fabric having function of photocatalyst imparted thereto
JP2006219560A Method for producing olefin polymer
JP2006182877A Slide member
JP2006016378A Method for oxidizing substituted aromatic compound
JP2006111586A Method for oxidizing substituted aromatic compound
JP2006104305A Solid phase polycondensation method, solid phase polycondensation product and solid phase polycondensation apparatus
JP2006063151A Method for producing olefin polymer
JP2006043998A Nonwoven fabric
JP2006016535A Coating film-forming composition
JP2005330230A Method for producing monocyclic aromatic hydrocarbon-styrene compound adduct
JP2005206782A Polyamic acid and polyimide
JP2005320387A Laminate and adhesive material
JP2005320386A Polyimide film laminate