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SUMITOMO HEAVY IND CONSTR

Overview
  • Total Patents
    136
About

SUMITOMO HEAVY IND CONSTR has a total of 136 patent applications. Its first patent ever was published in 2000. It filed its patents most often in Japan, China and Germany. Its main competitors in its focus markets civil engineering, transport and packaging and shipping are ALLEN DENIS L C, LUNKE & SOHN GMBH and INOUE KANAMONO KK.

Patent filings in countries

World map showing SUMITOMO HEAVY IND CONSTRs patent filings in countries
# Country Total Patents
#1 Japan 133
#2 China 1
#3 Germany 1
#4 United States 1

Patent filings per year

Chart showing SUMITOMO HEAVY IND CONSTRs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kahara Akira 17
#2 Mori Hirobumi 11
#3 Ochizawa Junichi 9
#4 Fujita Naoteru 6
#5 Matsumura Seiichi 5
#6 Takashima Toshihiro 4
#7 Shibata Shigeo 4
#8 Kikuchi Koji 4
#9 Maehara Yukio 4
#10 Hayase Yukio 4

Latest patents

Publication Filing date Title
JP2007223599A Brake controller of construction machine
JP2004210031A Turning lever for crawler crane
JP2004132397A Hydraulic circuit for crane
JP2004067301A Safety device for mobile crane
JP2004043087A Safety device for crawler crane
JP2004037031A Device for adjusting opening part of cooler
JP2004035116A Boom structure for working machine
JP2004036664A Hydraulic control circuit
JP2004036663A Hydraulic control valve
JP2004027700A Opening/closing window
JP2004026441A Connecting pin holding device
JP2004026440A Console box of construction machine
JP2004026442A Control box of mobile crane
JP2004026330A Hoist such as crane
JP2004018251A Intermediate boom for crane
JP2004017928A Undercover of construction machine
JP2004010022A Brake control device in construction machinery
JP2004011902A Hydraulic operating device for construction machinery
JP2004010210A Storing type operation lever of construction machinery
JP2004010202A Hook over-hoisting prevention device