Assignee
HATANAKA TAKEFUMI
8 granted patents·224 citations·filing 1977–1988
Top patents by PatentIndex Score
8 records- 0198US4192467ADocument shredderHATANAKA TAKEFUMI·Filed 1978·Granted Mar 11, 1980·107 cites·3 claims
- 0288US4231530AAutomatic document shredderHATANAKA TAKEFUMI·Filed 1978·Granted Nov 4, 1980·30 cites·7 claims
- 0388US4124169ADocument shredderHATANAKA TAKEFUMI·Filed 1977·Granted Nov 7, 1978·26 cites·7 claims
- 0478US4690340AWaste material shredderHATANAKA TAKEFUMI·Filed 1986·Granted Sep 1, 1987·33 cites·8 claims
- 0556USD297240SCutter disk for paper shredding machineHATANAKA TAKEFUMI·Filed 1985·Granted Aug 16, 1988·7 cites·1 claims
- 0655US4844366AWaste material shredderHATANAKA TAKEFUMI·Filed 1988·Granted Jul 4, 1989·9 cites·5 claims
- 0753USD292590SPaper shredder cutter discHATANAKA TAKEFUMI·Filed 1985·Granted Nov 3, 1987·6 cites·1 claims
- 0845US4776525AWaste material shredderHATANAKA TAKEFUMI·Filed 1987·Granted Oct 11, 1988·6 cites·9 claims
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