Assignee
SUMITOMO CEMENT COMPANY LTD
JP·4 granted patents·201 citations·filing 1990–1994
Top patents by PatentIndex Score
4 records- 0189US5216541AOptical associative identifier with real time joint transform correlatorSUMITOMO CEMENT COMPANY LTD·Filed 1990·Granted Jun 1, 1993·115 cites·6 claims
- 0268US5526448AOptical waveguide modulator having a reduced D.C. driftSUMITOMO CEMENT COMPANY LTD·Filed 1994·Granted Jun 11, 1996·35 cites·24 claims
- 0365US5214345AUltraviolet ray-shielding agent and tubeSUMITOMO CEMENT COMPANY LTD·Filed 1991·Granted May 25, 1993·22 cites·2 claims
- 0451US5239595AOptical method for identifying or recognizing a pattern to be identifiedSUMITOMO CEMENT COMPANY LTD·Filed 1990·Granted Aug 24, 1993·29 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when SUMITOMO CEMENT COMPANY LTD 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 →