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YOSHIZUKA SEIKI CO LTD

Overview
  • Total Patents
    11
About

YOSHIZUKA SEIKI CO LTD has a total of 11 patent applications. Its first patent ever was published in 1977. It filed its patents most often in United States, France and Sweden. Its main competitors in its focus markets machine tools, materials and metallurgy and machines are NIPPON DENJI SOKKI KK, TOM POLITEKHN UNI and YANGZHOU HAILI PREC MACHINERY MANUFACTURING CO LTD.

Patent filings in countries

World map showing YOSHIZUKA SEIKI CO LTDs patent filings in countries
# Country Total Patents
#1 United States 9
#2 France 1
#3 Sweden 1

Patent filings per year

Chart showing YOSHIZUKA SEIKI CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Katagiri Takeshi 7
#2 Yamamoto Masao 5
#3 Tajima Tukasa 3
#4 Shirasaki Shiro 2
#5 Shirasaki Siro 2
#6 Takeshi Katagiri 1
#7 Masaaki Ozu 1
#8 Tsuchifuji T 1
#9 Tsuchifuji Takakazu 1
#10 Sirasaki Siro 1

Latest patents

Publication Filing date Title
US5401153A Press for powder metallurgy