Assignee
YAMAGUCHI TAKEYOSHI
4 granted patents·73 citations·filing 1976–1979
Top patents by PatentIndex Score
4 records- 0174US4116529AWide-angle spyglassYAMAGUCHI TAKEYOSHI·Filed 1976·Granted Sep 26, 1978·34 cites·5 claims
- 0268US4251127AWide-angle door viewerYAMAGUCHI TAKEYOSHI·Filed 1979·Granted Feb 17, 1981·24 cites·6 claims
- 0342US4269204ACigarette filterYAMAGUCHI TAKEYOSHI·Filed 1979·Granted May 26, 1981·7 cites·8 claims
- 0441US4250901ACigarette holderYAMAGUCHI TAKEYOSHI·Filed 1979·Granted Feb 17, 1981·8 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when YAMAGUCHI TAKEYOSHI 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 →