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NIPPON AIR FILTER

Overview
  • Total Patents
    45
About

NIPPON AIR FILTER has a total of 45 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan. Its main competitors in its focus markets chemical engineering and environmental technology are TIAN PENGCHENG, HONGSHENG ZHANG and SANKYO GIKEN KOGYO KK.

Patent filings in countries

World map showing NIPPON AIR FILTERs patent filings in countries
# Country Total Patents
#1 Japan 45

Patent filings per year

Chart showing NIPPON AIR FILTERs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Okamoto Masayuki 18
#2 Okuyama Kazuhiro 9
#3 Aoki Teruo 7
#4 Konno Takahiro 5
#5 Yashiro Yutaka 4
#6 Ando Masahiro 4
#7 Shima Toru 4
#8 Ushikubo Ikuyoshi 3
#9 Kuwana Shoichi 3
#10 Kanai Naotada 3

Latest patents

Publication Filing date Title
JP2014136179A Box type prefilter
JP2013123708A Pocket type air filter
JP2013111572A Filter medium for gas removal
JP2013000738A Filter cartridge of chemical filter unit
JP2012247056A Diaphragm valve
JP2012240042A High temperature air filter
JP2012166158A Air filter apparatus
JP2012121015A Automatic winding type air filter
JP2011237157A Total heat exchange element of heat exchanger
JP2011194389A Medium high performance filter
JP2011104575A Nonwoven roll filter
JP2011011199A Deodorizing filter
JP2011000580A Air filter medium and apparatus for manufacturing the same
JP2010110744A Automatic rolling-up air filter
JP2010082612A Filter medium replacement type air filter
JP2009154142A Filter cartridge of chemical filter unit
JP2008012502A Filter pack and apparatus for manufacturing the same
JP2007275859A Bag filter attachment mechanism of dust gas removing unit
JP2006150219A Filter media replacement type air filter
JP2004321937A Folding-in type air filter and production method therefor