Assignee
KOKEN KAIHATSU CO LTD
JP·2 granted patents·48 citations·filing 1991–1993
Top patents by PatentIndex Score
2 records- 0146US5271781AMethod of making a thermoplastic sheet with cement particles for use on concrete structuresKOKEN KAIHATSU CO LTD·Filed 1991·Granted Dec 21, 1993·28 cites·6 claims
- 0242US5371680AAccounting book automatic entering deviceKOKEN KAIHATSU CO LTD·Filed 1993·Granted Dec 6, 1994·20 cites·5 claims
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