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YASUNAGA RIKEN CO LTD

Overview
  • Total Patents
    31
About

YASUNAGA RIKEN CO LTD has a total of 31 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, France and United Kingdom. Its main competitors in its focus markets environmental technology, chemical engineering and civil engineering are SHEN XINLI, VESELINOVIC NENAD and ANHUI HENGYUAN PHARMACEUTICAL CO LTD.

Patent filings in countries

World map showing YASUNAGA RIKEN CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 28
#2 France 1
#3 United Kingdom 1
#4 United States 1

Patent filings per year

Chart showing YASUNAGA RIKEN CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakamura Yuukichi 10
#2 Tago Yoshiaki 7
#3 Umeki Tomoji 7
#4 Umemoto Tomoji 6
#5 Yasunaga Giichi 4
#6 Hokao Zenjiro 4
#7 Sakusabe Koji 4
#8 Sakusabe Kouji 3
#9 Seiriyou Masamichi 2
#10 Hatakeyama Sakae 2

Latest patents

Publication Filing date Title
JPS5345012A Auxiliary air bag used for waterproof covering by means of waterproof sheet
JPS5337720A Moulding box made of woven fabric used to mould concrete
JPS5338104A Woven cloth form for and method of forming concrete layer
JPS5314907A Woven cloth inclined scrib work
JPS5310536A Clothhmade molding frame for civil engineering works
JPS534991A Hatch cover for ship
JPS52137136A Method of removing water after placing concrete and concrete shaping form
JPS52104962A Apparatus for measring density of conveyed article on carrier fluid
JPS52101802A Textile form with groove for civil engineering
JPS5299605A Textile laminated form for civil engineering work
JPS5281904A Textile concrete form
JPS5277433A Clothhmade molding frame for civil engineering works
JPS5240520A Method of manufacturing molded soil products
JPS5231536A Oil fence
JPS5231537A Oil fence
JPS5231503A Fabric form for civil engineering work
JPS5219165A Process and apparatus for treating solids, liquids by jet frames
JPS52583A Container provided with hoisting device
JPS51151956A Container reversing equipment
GB1491336A Method of drying high water-content substances and an equipment therefor