Inventor · disambiguated record
Masaoki Koyama
Also filed as: KIGO HIROYUKI · KOYAMA MASAOKI · TSURUMI MICHIO
3 granted patents·62 citations·filing 1978–1993
72Inventor score
Top patents by PatentIndex Score
3 records- 0181US5436399AThermoplastic polyurethane derived from polytetramethylene carbonate diolASAHI CHEMICAL IND·Filed 1993·Granted Jul 25, 1995·42 cites·12 claims
- 0260US4211684AVinylidene chloride polymer latexASAHI DOW LTD·Filed 1978·Granted Jul 8, 1980·12 cites·3 claims
- 0342US4177181AFlame-retardant adhesive compositionsASAHI DOW LTD·Filed 1978·Granted Dec 4, 1979·8 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →