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TONEN SEKIYUKAGAKU KK

Overview
  • Total Patents
    1,609
About

TONEN SEKIYUKAGAKU KK has a total of 1,609 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, EPO (European Patent Office) and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets machines, environmental technology and electrical machinery and energy are TAKITA KOTARO, NOGATA TETSURO and RAI RES CORP.

Patent filings per year

Chart showing TONEN SEKIYUKAGAKU KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Takita Kotaro 267
#2 Kono Koichi 240
#3 Kaimai Norimitsu 152
#4 Fujita Yuji 88
#5 Komiyama Osamu 87
#6 Yagi Yukihiko 86
#7 Kikuchi Shintaro 85
#8 Iwanami Kunio 79
#9 Suzuki Sadakatsu 72
#10 Toda Hideaki 72

Latest patents

Publication Filing date Title
JP2011080078A Polyolefin microporous film
CN102355940A Microporous membranes and methods for making and using such membranes
CN102223945A Microporous membrane, methods for making such film, and the use of such film as battery separator film
CN105964150A Microporous membranes and methods for producing and using such membranes
WO2010048392A1 Multi-layer microporous membranes and methods for making and using such membranes
WO2010026904A1 Apparatus and method for drying a thermoplastic sheet
WO2010018749A1 Chill roll system and process for producing a microporous membrane
WO2010001722A2 Chill roll assembly and process for producing a microporous membrane
WO2009084720A1 Microporous multilayer membrane, system and process for producing such membrane, and the use of such membrane
WO2009084722A1 A closing and opening apparatus of a tenter clip, and defective tenter clip detecting method and device
WO2009078477A1 A method for removing diluent from an extrudate of a polymer solution
WO2009078478A1 A method for removing diluent from a polymer extrudate, and its applications
CN101878109A Microporous films, methods for their production, and applications thereof
WO2009051278A2 Extruder and process for preparing a mixture of polymer and diluent
WO2009051281A1 Extruder having dual mixing stages and process for preparing a mixture of polymer and diluent
KR20100053685A Microporous membranes and methods for making and using such membranes
WO2009044906A1 Apparatus and method for protecting extrudate from process condensation
WO2009038233A1 Microporous membranes and methods for making and using such membranes
WO2009035161A2 An extrusion die with manifold system and a method of extrusion
KR20100059933A Multi-layer, microporous polyolefin membrane, its production method, battery separator and battery