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BUNKA SHUTTER

Overview
  • Total Patents
    2,457
  • GoodIP Patent Rank
    3,200
  • Filing trend
    ⇧ 43.0%
About

BUNKA SHUTTER has a total of 2,457 patent applications. It increased the IP activity by 43.0%. Its first patent ever was published in 1974. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets civil engineering, environmental technology and control are SCHWARZE AG METALLTUEREN, EFAFLEX TRANSPORT LAGER and NOVOFERM GMBH.

Patent filings per year

Chart showing BUNKA SHUTTERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nakajima Koji 177
#2 Odate Kazuki 147
#3 Takai Kuniharu 131
#4 Ohashi Toshiyuki 115
#5 Inomata Satoshi 110
#6 Shigemura Masakazu 96
#7 Oi Masaru 96
#8 Uetake Toru 90
#9 Iwase Kensho 89
#10 Okada Hidemasa 87

Latest patents

Publication Filing date Title
JP2021008811A Positioning/connection structure of building material and positioning/connection method therefor
JP2020197119A Opening/closing device and opening/closing control method
JP2020169562A Connection member of building material, connector, and connection structure thereof
JP2020169561A Connection member of building material, connector, and connection structure thereof
JP2020169563A Connector of building material, connection structure thereof, and connection method thereof
JP2020169560A Connection member of building material and connection structure thereof
JP2020204252A Fireproof opening and closing device
JP2020128699A Water cutoff member and water cutoff structure
JP2020125682A Closing body device
JP2020125678A Connecting device for building material, and connecting structure and connecting method therefor
JP2020109252A Attachment structure of opening/closing body housing case and attachment method of opening/closing body housing case
JP2020094490A Guide rail structure of opening-closing body
JP2020112024A Package structure of water cut-off plate
JP2020073788A Opening and closing device
JP2020073781A Building material connector, connection structure thereof, and connection method thereof
JP2020073780A Building material connector, connection structure thereof, and connection method
JP2020073779A Connecting arrangement of building materials, connection structure thereof and connection method thereof
JP2020045763A Water stop member
JP2020037861A Fireproof screen
JP2020193551A Opening/closing body device failure prediction detection method and failure prediction detection device, opening/closing body device and opening/closing body control method