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MAEDA SEIKAN KK

Overview
  • Total Patents
    238
About

MAEDA SEIKAN KK has a total of 238 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology, materials and metallurgy and civil engineering are KAIHATSU CONCRETE KK, ONODA CHEMICO CO LTD and LEI LIU.

Patent filings in countries

World map showing MAEDA SEIKAN KKs patent filings in countries
# Country Total Patents
#1 Japan 238

Patent filings per year

Chart showing MAEDA SEIKAN KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Maeda Naoki 49
#2 Mizukami Katsuro 22
#3 Sato Kazuhiko 14
#4 Sato Hiroshi 14
#5 Sasahara Seiichirou 14
#6 Ito Toru 13
#7 Tsuchida Tamotsu 12
#8 Gouma Tokihiro 9
#9 Tadano Tatsuo 9
#10 Kojima Hiroshi 8

Latest patents

Publication Filing date Title
JP2009161998A Branch part structure of underground construction
JP2009161997A Structure for joining pile and footing together
JP2009161996A Composite pile of steel pipe concrete
JP2009127249A Reinforced concrete side ditch
JP2009127212A Reinforced concrete side ditch
JP2009127213A Excavating head for burying prefabricated pile
JP2009097278A Centrifugal reinforced concrete pile with high bending resistance
JP2009046939A Side ditch lid and closed lid structure of concrete side ditch block by the same
JP2009030737A Mechanical device mount and its manufacturing method
JP2009013654A Closing cover structure of concrete side-ditch block
JP2008231733A Joint structure of pile
JP2008231732A Joint structure of pile
JP2007113202A Foundation structure for supporting upper structure
JP2007082509A Livestock feed having fruit tree pruned branch as raw material, and method for producing the same
JP2007070914A Expandable head
JP2006142512A Manufacturing method of instantly demolded concrete product and lid made of concrete
JP2005329335A Manufacturing method of car washing water
JP2005246125A Neutralization treatment method of acidic waste water
JP2005120702A Composite concrete member
JP2005113413A Shearing reinforcing structure of ready-made concrete pile