Inventor · disambiguated record
Kiyoshi Ukawa
Also filed as: UKAWA KIYOSHI
5 granted patents·50 citations·filing 1978–1980
79Inventor score
Files withTAKEDA CHEMICAL INDUSTRIES LTD5
Top patents by PatentIndex Score
5 records- 0190US4143042A1-azaxanthone-3-carboxylic acidsTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1978·Granted Mar 6, 1979·21 cites·58 claims
- 0284US4299963A1-Azaxanthone derivativesTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1980·Granted Nov 10, 1981·16 cites·38 claims
- 0374US4255576A1-Azaxanthone derivativesTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1978·Granted Mar 10, 1981·7 cites·23 claims
- 0457US4267332A3-(Tetrazol-5-yl)-1-azaxanthonesTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1978·Granted May 12, 1981·5 cites·20 claims
- 0541US4302463A1-Azaxanthone-3-carboxylic acids and their productionTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1980·Granted Nov 24, 1981·1 cites·22 claims
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