Inventor · disambiguated record
Yasushi Chatani
Also filed as: CHATANI YASUSHI
11 granted patents·344 citations·filing 1979–1982
92Inventor score
Technology areasA63H
Files withKAWADA CO LTD11
Top patents by PatentIndex Score
11 records- 0196US4306373AInterconnecting toy block arrangementKAWADA CO LTD·Filed 1979·Granted Dec 22, 1981·103 cites·27 claims
- 0293USD272167SToy blockKAWADA CO LTD·Filed 1979·Granted Jan 10, 1984·33 cites·1 claims
- 0391USD272256SToy blockKAWADA CO LTD·Filed 1979·Granted Jan 17, 1984·27 cites·1 claims
- 0491US4375139AToy arrangement with independently rotatable wheel meansKAWADA CO LTD·Filed 1982·Granted Mar 1, 1983·57 cites·11 claims
- 0586US4305221ABlock of members having interior interlock meansKAWADA CO LTD·Filed 1979·Granted Dec 15, 1981·36 cites·19 claims
- 0682USD272255SToy blockKAWADA CO LTD·Filed 1979·Granted Jan 17, 1984·16 cites·1 claims
- 0782US4246718AInterconnecting toy block arrangementKAWADA CO LTD·Filed 1979·Granted Jan 27, 1981·31 cites·22 claims
- 0879USD277686SToy blockKAWADA CO LTD·Filed 1979·Granted Feb 19, 1985·14 cites·1 claims
- 0960USD277877SActivity toyKAWADA CO LTD·Filed 1982·Granted Mar 5, 1985·7 cites·1 claims
- 1060USD277878SActivity toyKAWADA CO LTD·Filed 1982·Granted Mar 5, 1985·7 cites·1 claims
- 1154US4361980ARolling toy and axle arrangementKAWADA CO LTD·Filed 1982·Granted Dec 7, 1982·13 cites·51 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →