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NIPPON ROKAKI KK

Overview
  • Total Patents
    47
  • GoodIP Patent Rank
    231,172
About

NIPPON ROKAKI KK has a total of 47 patent applications. Its first patent ever was published in 1978. It filed its patents most often in Japan. Its main competitors in its focus markets chemical engineering and engines, pumps and turbines are HENGST WALTER GMBH & CO KG, HENGST SE & CO KG and QUALC INC.

Patent filings in countries

World map showing NIPPON ROKAKI KKs patent filings in countries
# Country Total Patents
#1 Japan 47

Patent filings per year

Chart showing NIPPON ROKAKI KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Komatsu Norio 9
#2 Hirasawa Masazumi 8
#3 Baba Toshihisa 8
#4 Harada Yoshihiko 6
#5 Abe Masaru 4
#6 Nakayama Hiroo 4
#7 Iwakata Keisaku 3
#8 Abe Takashi 3
#9 Shibata Seiichi 2
#10 Karasawa Heiji 2

Latest patents

Publication Filing date Title
JP2017127841A Filter and valve device
JP2014108386A Filter
JP2014108387A Filter
JP2013119072A Filter device
JP2012040455A Filter element and filter device
JP2008202489A Air cleaner
JP2008080295A Filtering device
JP2007117945A Filter device
JP2006249941A Prefuel filter
JP2006226212A No-oil-change method, fuel filter or oil filter of diesel engine
JP2006142200A Air filter apparatus
JP2006122772A Filter medium, filter element and filter device
JP2006088104A Air filter apparatus
JP2005226552A Recycling method of filter
JP2005036677A Method for replacing engine lubricating system, oil tank and automobile
JP2005023852A Pressure adjustment device
JP2005023853A Oil separation device and pressure adjustment device
JP2005023854A Pcv valve system
JP2004305906A Air filter
JP2004305907A Cyclone type separation apparatus