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YOSHIZAWA SEKKAI KOGYO KK

Overview
  • Total Patents
    78
About

YOSHIZAWA SEKKAI KOGYO KK has a total of 78 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets environmental technology, materials and metallurgy and civil engineering are TANG LIANFANG, GRANDEX CO LTD and UNIV WUHAN SCIENCE & TECHNOLOGY.

Patent filings in countries

World map showing YOSHIZAWA SEKKAI KOGYO KKs patent filings in countries
# Country Total Patents
#1 Japan 76
#2 EPO (European Patent Office) 1
#3 United States 1

Patent filings per year

Chart showing YOSHIZAWA SEKKAI KOGYO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hanada Mitsuo 42
#2 Nakazawa Sozo 26
#3 Ito Hiroyasu 15
#4 Fukuro Kouichi 14
#5 Haneda Hiroshi 13
#6 Bunriyou Shinobu 9
#7 Tani Mitsuo 8
#8 Matsumura Shunsuke 7
#9 Shiroi Takeshi 6
#10 Kato Kunio 5

Latest patents

Publication Filing date Title
JPH10317048A Flux for electric furnace steel-making and its production
JPH10279331A Production of useful material from slag of pig iron making and steel making
JPH10245637A Manufacture of sintered ore
JPH09227121A Production of fine powdery calcium hydroxide and device therefor
US5653948A Method for calcining fine limestone powder
JPH09268013A Production of fine powder slaked lime by utilizing fluidized bed
JPH09268012A Production of fine powder slaked lime by utilizing fluidized bed
JPH09165216A Production of calcium hydroxide having high flowability
JPH09143949A Antislip agent and manufacture thereof
JPH0948646A Production of powder of quicklime or lightly baked dolomite protected from dispersion
JPH0899928A Antifreezing agent and its production
JPH0948645A Production of powder protected from dispersion
JPH0913003A Antifreeze for road surface and its production
JPH08337453A Synthesizing method of calcium sulfoaluminate
JPH08333143A Solidification of chip of oya-ishi
JPH08319113A Production of slaked lime and production apparatus therefor
JPH08283052A Method for blowing waste plastics to rotary kiln
JPH08283051A Production of quicklime-calcined dolomite in rotary kiln using waste plastics
JPH08283053A Method of burning waste plastics in rotary kiln
EP0735010A1 Method and apparatus for calcining fine limestone powder