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VITAL CHAIN BLOCK MFG

Overview
  • Total Patents
    94
About

VITAL CHAIN BLOCK MFG has a total of 94 patent applications. Its first patent ever was published in 1980. It filed its patents most often in Japan, United States and Germany. Its main competitors in its focus markets packaging and shipping, machines and mechanical elements are W W PATTERSON COMPANY, MAXWELL WINCHES LTD and KITO KAWASAKI KK.

Patent filings in countries

World map showing VITAL CHAIN BLOCK MFGs patent filings in countries

Patent filings per year

Chart showing VITAL CHAIN BLOCK MFGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Samejima Yasuhiro 26
#2 Nishimura Yosaku 26
#3 Nishimura Yousaku 21
#4 Nishimura Koji 6
#5 Nishimura Kouji 3
#6 Yosaku Nishimura 2
#7 Yasuhiro Sameshima 1
#8 Nishimura Yosaky 1
#9 Smith Glenn S 1
#10 Samejima Ysuhiro 1

Latest patents

Publication Filing date Title
JP2004075241A Winding machine with overload prevention device
US6578824B2 Overload-preventing device for winch
US6517054B2 Lever hoist with overload preventing device
JP2002249298A Lever type hoist
JP2002193591A Lever type hoist
JP2001072384A Lever hoist with overload preventing device
JP2000351584A Winch with overloard prevention device
JP2000264589A Lever for lever hoist
JP2000226190A Lever hoist
JP2000136093A Overload preventing device for winding machine
JP2000086167A Lever hoist with base
JP2000072389A Locking link for lever hoist and its manufacture
JP2000016769A Lever type hoist
JPH11106187A Lever hoist
JPH1025091A Lever handle for lever hoist
JPH1059689A Lever type hoisting machine
JPH102113A Joist hook of erection auxiliary tool
JPH09272694A Lever hoist
JPH08245160A Stud type cargo lifting sling
JPH0826679A Lever hoist