Inventor · disambiguated record
Takehiro Ogasa
Also filed as: OGASA TAKEHIRO
12 granted patents·38 citations·filing 1979–1999
88Inventor score
Files withKYOWA HAKKO KOGYO KK12
Top patents by PatentIndex Score
12 records- 0165US4640919A3-substituted carbacepem compounds having antibacterial effectKYOWA HAKKO KOGYO KK·Filed 1985·Granted Feb 3, 1987·7 cites·3 claims
- 0261US4291164ACephalosporin analogs and methods for production thereofKYOWA HAKKO KOGYO KK·Filed 1979·Granted Sep 22, 1981·4 cites·3 claims
- 0360US4760060A3-heteroaralkylthio carbacephem compounds and antibacterial pharmaceutical compositionKYOWA HAKKO KOGYO KK·Filed 1985·Granted Jul 26, 1988·6 cites·2 claims
- 0458US4316958AProcess for producing optically active cephalosporin analogsKYOWA HAKKO KOGYO KK·Filed 1980·Granted Feb 23, 1982·4 cites·5 claims
- 0553US4332896AProcess for producing cephalosporin analogsKYOWA HAKKO KOGYO KK·Filed 1980·Granted Jun 1, 1982·3 cites·5 claims
- 0645US6197998B1Process for producing N-glycyltyrosine and its crystal structureKYOWA HAKKO KOGYO KK·Filed 1999·Granted Mar 6, 2001·5 cites·18 claims
- 0741US5585488AProcess for producing indolocarbazole derivativesKYOWA HAKKO KOGYO KK·Filed 1995·Granted Dec 17, 1996·2 cites·3 claims
- 0836US4302540AProcess of producing optically active cephalosporin analogs by enzyme selective deacylationKYOWA HAKKO KOGYO KK·Filed 1980·Granted Nov 24, 1981·5 cites·4 claims
- 0932US5344938AIndole 3-carboxylic acid derivativesKYOWA HAKKO KOGYO KK·Filed 1993·Granted Sep 6, 1994·1 cites·2 claims
- 1032US4663450AOptically active cephalosporin analogsKYOWA HAKKO KOGYO KK·Filed 1985·Granted May 5, 1987·1 cites·5 claims
- 1129US4755596AOptically active carbacephemsKYOWA HAKKO KOGYO KK·Filed 1986·Granted Jul 5, 1988·0 cites·13 claims
- 1228US5756823AGlutathione monoester sulfonateKYOWA HAKKO KOGYO KK·Filed 1997·Granted May 26, 1998·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →