Assignee
YAMAZAKI KEIICHIRO
JP·3 granted patents·18 citations·filing 1983–1990
Top patents by PatentIndex Score
3 records- 0127US4596104AJoint structure for a structural bar assemblyYAMAZAKI KEIICHIRO·Filed 1985·Granted Jun 24, 1986·3 cites·4 claims
- 0226US5085020APortable, assemblable-disassemblable staircaseYAMAZAKI KEIICHIRO·Filed 1990·Granted Feb 4, 1992·4 cites·2 claims
- 0326US4557085AFixing mechanism for stair units facilitating adjustment of heightYAMAZAKI KEIICHIRO·Filed 1983·Granted Dec 10, 1985·11 cites·5 claims
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