Assignee
RIKEN KEIKINZOKU KOGYO KK
10 granted patents·128 citations·filing 1974–1977
Top patents by PatentIndex Score
10 records- 0177US4028795AMethod of manufacturing extruded structural profiles from aluminum based metal scrapsRIKEN KEIKINZOKU KOGYO KK·Filed 1975·Granted Jun 14, 1977·22 cites·1 claims
- 0270US4184927AProcess and apparatus for effecting surface treatment of workpiecesRIKEN KEIKINZOKU KOGYO KK·Filed 1977·Granted Jan 22, 1980·15 cites·6 claims
- 0363US4033024AMethod for producing extruded structural profiles from scrap materials of aluminum based metalRIKEN KEIKINZOKU KOGYO KK·Filed 1975·Granted Jul 5, 1977·16 cites·11 claims
- 0461US3968020AApparatus for surface treating metal membersRIKEN KEIKINZOKU KOGYO KK·Filed 1974·Granted Jul 6, 1976·19 cites·12 claims
- 0558US4117703AApparatus for manufacturing extruded structural profiles from aluminum based metal scrapsRIKEN KEIKINZOKU KOGYO KK·Filed 1977·Granted Oct 3, 1978·14 cites·2 claims
- 0654US4050142AMethod and apparatus for manufacturing extruded structural profiles from aluminum based metal scrapsRIKEN KEIKINZOKU KOGYO KK·Filed 1975·Granted Sep 27, 1977·12 cites·5 claims
- 0747US4144142AMethod for producing colored anodic film on aluminum-based materialRIKEN KEIKINZOKU KOGYO KK·Filed 1977·Granted Mar 13, 1979·7 cites·2 claims
- 0846US4057937AWindow sash assemblyRIKEN KEIKINZOKU KOGYO KK·Filed 1976·Granted Nov 15, 1977·13 cites·13 claims
- 0936US4147598AMethod for producing colored anodic oxide films on aluminum based alloy materialsRIKEN KEIKINZOKU KOGYO KK·Filed 1977·Granted Apr 3, 1979·8 cites·5 claims
- 1024US3996125AApparatus for electrolytically processing aluminium materialRIKEN KEIKINZOKU KOGYO KK·Filed 1975·Granted Dec 7, 1976·2 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when RIKEN KEIKINZOKU KOGYO KK files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →