Assignee
BUNKA SHUTTER
JP·10 granted patents·2 pending applications·171 citations·filing 1984–2021
Top patents by PatentIndex Score
12 records- 0182US6630235B2Bullet-proof glass screen, and bullet-proof glass screen deviceBUNKA SHUTTER·Filed 2001·Granted Oct 7, 2003·24 cites·16 claims
- 0273US11746585B2Connection member for construction materials, connecting fitting therefor, connecting structure therefor, and connecting method thereforBUNKA SHUTTER·Filed 2019·Granted Sep 5, 2023·3 cites·14 claims
- 0370US5065806APanel shutter assemblyBUNKA SHUTTER·Filed 1991·Granted Nov 19, 1991·49 cites·5 claims
- 0465US6065546AFire extinguishing and smoke eliminating apparatus and method using water mistBUNKA SHUTTER·Filed 1998·Granted May 23, 2000·39 cites·13 claims
- 0561US11746586B2Connecting device for construction materials, connecting structure therefor, and connecting method thereforBUNKA SHUTTER·Filed 2019·Granted Sep 5, 2023·1 cites·13 claims
- 0659US9810011B2Opening/closing deviceBUNKA SHUTTER·Filed 2013·Granted Nov 7, 2017·3 cites·9 claims
- 0754US4838331ASlat opening/closing drive mechanism in shutter equipmentBUNKA SHUTTER·Filed 1987·Granted Jun 13, 1989·21 cites·9 claims
- 0848US12276155B2Connecting fitting construction materials and connecting method thereforBUNKA SHUTTER·Filed 2019·Granted Apr 15, 2025·0 cites·13 claims
- 0942US2025092735A1Building material coupling device, coupling structure thereof, and coupling method thereofBUNKA SHUTTER·Filed 2021·Application pending·0 cites
- 1042US2025341127A1Building material coupler, coupling structure thereof, and coupling method thereofBUNKA SHUTTER·Filed 2021·Application pending·0 cites
- 1141US4595043AShutter deviceBUNKA SHUTTER·Filed 1984·Granted Jun 17, 1986·13 cites·3 claims
- 1238US5072766APanel shutter assemblyBUNKA SHUTTER·Filed 1991·Granted Dec 17, 1991·18 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →