Inventor · disambiguated record
Yasuo Watanabe
Also filed as: WATANABE YASUO
11 granted patents·132 citations·filing 1981–1997
91Inventor score
Top patents by PatentIndex Score
11 records- 0188US4698352A4-oxo-1,4-dihydronicotinic acid derivatives, salts thereof, and antibacterial agents containing the sameTOYAMA CHEMICAL CO LTD·Filed 1983·Granted Oct 6, 1987·30 cites·13 claims
- 0288US4489072ACephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1981·Granted Dec 18, 1984·18 cites·30 claims
- 0366US5935952AQuinolone- or naphthylidone-carboxylic acid derivates or their saltsTOYAMA CHEMICAL CO LTD·Filed 1995·Granted Aug 10, 1999·26 cites·15 claims
- 0466US5144027ACephalosporins, process for producing the same, intermediates thereof and process for producing the intermediatesTOYAMA CHEMICAL CO LTD·Filed 1991·Granted Sep 1, 1992·8 cites·8 claims
- 0561US6025370AQuinolonecarboxylic acid derivatives or salts thereofTOYAMA CHEMICAL CO LTD·Filed 1997·Granted Feb 15, 2000·19 cites·21 claims
- 0653US4673738ANovel intermediates of cephalosporins and process for producing 7-(substituted or unsubstituted amino)-3-substituted methyl-Δ3 -cephem-4-carboxylic acidsHANDI PAC INC·Filed 1984·Granted Jun 16, 1987·2 cites·5 claims
- 0748US5185330APenam derivatives and salts thereof, and antibacterial agent comprising the sameTOYAMA CHEMICAL CO LTD·Filed 1990·Granted Feb 9, 1993·9 cites·51 claims
- 0846US4717767A7-amino-3-(pyrazinylmethyl) or (pyridazinylmethyl)-cephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1986·Granted Jan 5, 1988·2 cites·6 claims
- 0942US5300497APenam derivatives and salts thereof, process for producing the same and antibacterial agent comprising the sameTOYAMA CHEMICAL CO LTD·Filed 1992·Granted Apr 5, 1994·6 cites·8 claims
- 1040US5858408ASustained-release oral ointmentTOYAMA CHEMICAL CO LTD·Filed 1994·Granted Jan 12, 1999·11 cites·2 claims
- 1132US4618606AAntibiotic 7-(thiazolyl)-3-(pyrazinylmethyl) or (pyridazinylmethyl) cephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1983·Granted Oct 21, 1986·1 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Yasuo Watanabe 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 →