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OYO KIKAKU KK

Overview
  • Total Patents
    372
About

OYO KIKAKU KK has a total of 372 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan. Its main competitors in its focus markets civil engineering, environmental technology and mechanical elements are KURIMOTO NAKATOMI, YAMADA KUNIMITSU and YANG HYUNG CHIL.

Patent filings in countries

World map showing OYO KIKAKU KKs patent filings in countries
# Country Total Patents
#1 Japan 372

Patent filings per year

Chart showing OYO KIKAKU KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yamamoto Kiyoshi 368
#2 Yamamoto Takeshi 73
#3 Yamaguchi Masaharu 9
#4 Yamamoto Hiroko 5
#5 Kato Susumu 4
#6 Nagaoka Shingen 4
#7 Miyata Koichi 3
#8 Sasaki Tsuyoshi 3
#9 Yamamoto Kyoshi 3
#10 Miyazawa Keiichi 2

Latest patents

Publication Filing date Title
JP2007237291A Three-dimensional article of expand metal with rib
JP2003144914A Adsorbent
JP2003024778A Adsorber of three-dimensional shape
JP2002327513A Long-sized member
JP2002227500A Door using insert hinge
JP2002129574A Locking mechanism
JP2002088767A Ladder-type covering base for reinforcing embankment
JP2002081076A Fence-shaped covering material for reinforced embankment and construction method thereof
JP2002038640A Steel-made sheathing board
JP2001317158A Bent steel perforated angle bar
JP2001288748A Formation method of stepwise layered filling
JP2000273874A Serrated irregular board
JP2001270773A Adsorbent
JP2001131982A Tiered multi-layer banking forming method
JP2001123449A Easily constructable vertical wall face and layered reinforcing embankment
JP2001115452A Connecting method of net-like body of high strength
JP2001115453A Perpendicular wall surface, and layered reinforcement embankment easy in execution
JP2001081779A Method for forming vertical wall surface by which curved-surface execution is facilitated
JP2001064973A Method for placing multi-layer fill having vertical surface wall
JP2001059277A Connected sheet body