Inventor · disambiguated record
Toshifumi Asaka
Also filed as: ASAKA TOSHIFUMI · WATANABE YOSHIAKI
21 granted patents·611 citations·filing 1978–2007
96Inventor score
Top patents by PatentIndex Score
21 records- 0194US4990602AErythromycin A derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1988·Granted Feb 5, 1991·146 cites·3 claims
- 0292US4680386A6-O-methylerythromycin a derivativeTAISHO PHARMACEUTICAL CO LTD·Filed 1985·Granted Jul 14, 1987·61 cites·2 claims
- 0391US4670549AMethod for selective methylation of erythromycin a derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1986·Granted Jun 2, 1987·66 cites·3 claims
- 0489US4672109AMethod for selective methylation of erythromycin A derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1985·Granted Jun 9, 1987·66 cites·8 claims
- 0586US5403923A6-0-methylerythromycin A derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1991·Granted Apr 4, 1995·73 cites·1 claims
- 0684US5631355A5-O-desosaminylerythronolide a derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1993·Granted May 20, 1997·54 cites·1 claims
- 0773US5523399A5-O-desosaminylerythronolide derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1992·Granted Jun 4, 1996·26 cites·2 claims
- 0872US8124744B2Macrolide derivativesKASHIMURA MASATO·Filed 2007·Granted Feb 28, 2012·4 cites·31 claims
- 0972US4833236AErythromycin derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1987·Granted May 23, 1989·17 cites·5 claims
- 1070US5350839A2'-position modified compound of erythromycin or its derivativeTAISHO PHARMACEUTICAL CO LTD·Filed 1991·Granted Sep 27, 1994·23 cites·2 claims
- 1160US6169168B1Erythromycin A derivativesTAISHO PHARMACEUTICALS CO LTD·Filed 1998·Granted Jan 2, 2001·18 cites·1 claims
- 1259US5631354A5-O-desosaminylerythronolide derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1992·Granted May 20, 1997·10 cites·13 claims
- 1359US4190581ANovel penicillin derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1978·Granted Feb 26, 1980·3 cites·5 claims
- 1457US6191118B1Erythromycin A derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1997·Granted Feb 20, 2001·16 cites·4 claims
- 1548US5804565AErythromycin A derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1997·Granted Sep 8, 1998·6 cites·4 claims
- 1646US6140479AErythromycin a derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1998·Granted Oct 31, 2000·9 cites·2 claims
- 1745US6165986AErythromycin a derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1997·Granted Dec 26, 2000·5 cites·2 claims
- 1845US5302705A6-O-methylerythromycin a oxime derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1990·Granted Apr 12, 1994·5 cites·1 claims
- 1944US5591837A5-O-desosaminylerythronolide a derivativeTAISHO PHARMACEUTICAL CO LTD·Filed 1993·Granted Jan 7, 1997·3 cites·1 claims
- 2034US4357470ACephalosporin compoundsTAISHO PHARMACEUTICAL CO LTD·Filed 1981·Granted Nov 2, 1982·0 cites·3 claims
- 2130US5602239A5-O-desosaminylerythronolide derivativesTAISHO PHARMACEUTICAL CO LTD·Filed 1994·Granted Feb 11, 1997·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →