Inventor · disambiguated record
Akira Yazaki
Also filed as: YAZAKI AKIRA
21 granted patents·302 citations·filing 1979–2018
95Inventor score
Files withWAKUNAGA PHARMA CO LTD10WAKUNAGA SEIYAKU KK9WAKUNAGA PHARMACEUTICALS CO LT1WAKUNAGA YAKUHIN KK1
Top patents by PatentIndex Score
21 records- 0186US6133284APyridonecarboxylic acid derivatives or their salts, and antibacterial agents containing the same as their effective componentsWAKUNAGA PHARMA CO LTD·Filed 1999·Granted Oct 17, 2000·30 cites·3 claims
- 0286US5998436APyridonecarboxylic acid derivatives or their salts and antibacterial agent comprising the same as the active ingredientWAKUNAGA PHARMACEUTICALS CO LT·Filed 1996·Granted Dec 7, 1999·44 cites·11 claims
- 0385US6156903APyridonecarboxylic acid derivatives or their salts, and antibacterial agents containing the same as their effective componentsWAKUNAGA PHARMA CO LTD·Filed 1999·Granted Dec 5, 2000·30 cites·5 claims
- 0482US4793948ABile acid derivatives and production thereofWAKUNAGA SEIYAKU KK·Filed 1987·Granted Dec 27, 1988·33 cites·6 claims
- 0576US5153203AQuinolone derivatives and salts thereof, preparation processes thereof, and antibacterial agents containing the sameWAKUNAGA SEIYAKU KK·Filed 1990·Granted Oct 6, 1992·21 cites·6 claims
- 0675US5026856AIsoindoline derivativeWAKUNAGA SEIYAKU KK·Filed 1989·Granted Jun 25, 1991·26 cites·2 claims
- 0773US5910498APyridonecarboxylic acid derivatives or salts thereof and antibacterial agents comprising the same as active ingredientWAKUNAGA SEIYAKU KK·Filed 1995·Granted Jun 8, 1999·30 cites·12 claims
- 0871US5254685ATricyclic compound or salts thereof, method for producing the same and antimicrobial agent containing the sameWAKUNAGA SEIYAKU KK·Filed 1991·Granted Oct 19, 1993·14 cites·4 claims
- 0968US6586420B1Quinolinecarboxylic acid derivative or its saltWAKUNAGA PHARMA CO LTD·Filed 2000·Granted Jul 1, 2003·4 cites·15 claims
- 1068US5399553ATricyclic compound or salts thereof, method for producing the same and anti-microbial agent containing the sameWAKUNAGA SEIYAKU KK·Filed 1993·Granted Mar 21, 1995·12 cites·5 claims
- 1167US5412098AQuinolone derivative or salt thereof and antibacterial containing the sameWAKUNAGA SEIYAKU KK·Filed 1992·Granted May 2, 1995·15 cites·4 claims
- 1263US5359066ACertain tricyclic pyrido[3,2,1-ij]cinnoline-8-carboxylates, useful as antimicrobial agentsWAKUNAGA PHARMA CO LTD·Filed 1992·Granted Oct 25, 1994·8 cites·4 claims
- 1362US4876281AAntifungal agentsWAKUNAGA SEIYAKU KK·Filed 1987·Granted Oct 24, 1989·14 cites·8 claims
- 1461US6858625B1Quinolinecarboxylic acid derivative or salts thereofWAKUNAGA PHARMA CO LTD·Filed 2000·Granted Feb 22, 2005·1 cites·10 claims
- 1553US6136823APyridonecarboxylic acid derivatives or salts thereof and drugs containing the same as the active ingredientWAKUNAGA PHARMA CO LTD·Filed 1997·Granted Oct 24, 2000·12 cites·3 claims
- 1647US6211375B1Pyridonecarboxylic acid derivatives or salts thereof and antibacterial agents containing the same as the active ingredientWAKUNAGA PHARMA CO LTD·Filed 1997·Granted Apr 3, 2001·4 cites·5 claims
- 1743US4229356AProduction of vitamin K1 and vitamin K2WAKUNAGA YAKUHIN KK·Filed 1979·Granted Oct 21, 1980·2 cites·10 claims
- 1839US7713997B2Pyridonecarboxylic acid derivatives or salts thereofWAKUNAGA PHARMA CO LTD·Filed 2005·Granted May 11, 2010·0 cites·16 claims
- 1935US11286255B2Pyridone carboxylic acid derivative or salt thereofWAKUNAGA PHARMA CO LTD·Filed 2018·Granted Mar 29, 2022·0 cites·14 claims
- 2033US4810422ABile acid derivatives, their salts and production thereofWAKUNAGA SEIYAKU KK·Filed 1987·Granted Mar 7, 1989·2 cites·4 claims
- 2131US5994575APhenylenediamines and process for preparing the sameWAKUNAGA PHARMA CO LTD·Filed 1997·Granted Nov 30, 1999·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Akira Yazaki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →