Inventor · disambiguated record
Wataru Nagata
Also filed as: NAGATA WATARU · NARISADA MASAYUKI · TSUJI TERUJI · YOSHIOKA MITSURU
51 granted patents·466 citations·filing 1975–1986
98Inventor score
Top patents by PatentIndex Score
51 records- 0198US4336381A5-Fluorouracil derivativesSHIONOGI & CO·Filed 1980·Granted Jun 22, 1982·137 cites·13 claims
- 0291US4138486AArylmalonamido-1-oxadethiacephalosporinsSHIONOGI & CO·Filed 1977·Granted Feb 6, 1979·36 cites·41 claims
- 0388US4159984AReductive cleavage of oxazolidine compoundsSHIONOGI & CO·Filed 1977·Granted Jul 3, 1979·14 cites·1 claims
- 0488US4066641AMethod for cyclization to give cephem ringHAMASHIMA YOSHIO·Filed 1976·Granted Jan 3, 1978·25 cites·8 claims
- 0587US4346218ACyclization process to form cephem ringSHIONOGI & CO·Filed 1980·Granted Aug 24, 1982·14 cites·4 claims
- 0684US4183855AOxazolinoazetidinylbutyric acid derivativesSHIONOGI & CO·Filed 1978·Granted Jan 15, 1980·12 cites·1 claims
- 0783US4079181ACertain 7-oxo-4-thio-2,6-diazabicyclo-3,2,0-hept-2-ene compoundsSHIONOGI & CO·Filed 1976·Granted Mar 14, 1978·19 cites·11 claims
- 0882US4220766AOxazolinesSHIONOGI & CO·Filed 1978·Granted Sep 2, 1980·9 cites·4 claims
- 0979US4366316A1-Oxadethiacepham compounds and process for producing said compoundsSHIONOGI & CO·Filed 1981·Granted Dec 28, 1982·11 cites·21 claims
- 1078US4232151ADihydrotriazinylthiooxacephalosporinsSHIONOGI & CO·Filed 1978·Granted Nov 4, 1980·11 cites·56 claims
- 1174US4570018AFluorocyclopropanesSHIONOGI & CO·Filed 1984·Granted Feb 11, 1986·10 cites·5 claims
- 1272US4081595AReduction giving 3-cephem compoundsSHIONOGI & CO·Filed 1976·Granted Mar 28, 1978·8 cites·6 claims
- 1371US4604460A1-oxadethiacepham compoundsSHIONOGI & CO·Filed 1983·Granted Aug 5, 1986·7 cites·2 claims
- 1471US4201782AThiadiazolyl cephalosporin analogsSHIONOGI & CO·Filed 1978·Granted May 6, 1980·10 cites·62 claims
- 1570US4332722ACyclization to form cephem ring and intermediates thereforSHIONOGI & CO·Filed 1980·Granted Jun 1, 1982·7 cites·6 claims
- 1670US4130557AMethod for the hydrolysis of azetidinothiazoline compoundsSHIONOGI & CO·Filed 1976·Granted Dec 19, 1978·6 cites·5 claims
- 1768US4143038ACephalosporin analoguesSHIONOGI & CO·Filed 1977·Granted Mar 6, 1979·5 cites·2 claims
- 1868US4058521A2-Halomethyl-2-nucleophilic substituted methyl penicillinsSHIONOGI & CO·Filed 1977·Granted Nov 15, 1977·14 cites·1 claims
- 1967US4478997A1-Oxadethiacepham compoundsSHIONOGI & CO·Filed 1983·Granted Oct 23, 1984·4 cites·4 claims
- 2066US4226864A7-Substituted aminoacetamido oxadethiacephalosporinsSHIONOGI & CO·Filed 1977·Granted Oct 7, 1980·14 cites·16 claims
- 2166US4180571AArylmalonamido-1-oxadethiacephalosporinsSHIONOGI & CO·Filed 1978·Granted Dec 25, 1979·5 cites·36 claims
- 2265US4555578AMercaptotetrazolylalkanohydroxamic acids, salts and ester thereofSHIONOGI & CO·Filed 1983·Granted Nov 26, 1985·5 cites·15 claims
- 2365US4160085ACyclization to form cephem ring and intermediates thereforSHIONOGI & CO·Filed 1977·Granted Jul 3, 1979·9 cites·5 claims
- 2463US4529721AVinylthioacetamido oxacephalosporin derivativesSHIONOGI & CO·Filed 1983·Granted Jul 16, 1985·7 cites·12 claims
- 2563US4254119A3-Unsubstituted-3-cephem compoundsSHIONOGI & CO·Filed 1979·Granted Mar 3, 1981·11 cites·44 claims
- 2662US4443598A1-Oxadethiacepham compoundsSHIONOGI & CO·Filed 1982·Granted Apr 17, 1984·5 cites·4 claims
- 2757US4203982AArylmalonamidomethoxycephalosporinsSHIONOGI & CO·Filed 1977·Granted May 20, 1980·3 cites·8 claims
- 2856US4233216AAzetidinone derivatives and production thereofSHIONOGI & CO·Filed 1978·Granted Nov 11, 1980·3 cites·12 claims
- 2956US4223132ASelective conversion of benzyl alcohol carboxylates to the free acid formSHIONOGI & CO·Filed 1977·Granted Sep 16, 1980·3 cites·11 claims
- 3055US4323567AArylmalonamido-1-oxadethiacephalosporinsNARISADA MASAYUKI·Filed 1980·Granted Apr 6, 1982·16 cites·59 claims
- 3154US4614797ACephalosporin hydroxamic acidsSHIONOGI & CO·Filed 1984·Granted Sep 30, 1986·4 cites·12 claims
- 3248US4539148AProduction of 1-oxacephams and intermediatesSHIONOGI & CO·Filed 1983·Granted Sep 3, 1985·2 cites·3 claims
- 3348US4081443APenicillin oxidesSHIONOGI & CO·Filed 1977·Granted Mar 28, 1978·2 cites·10 claims
- 3447US4394505A5-Fluorouracil derivativesSHIONOGI & CO·Filed 1982·Granted Jul 19, 1983·2 cites·5 claims
- 3546US4511738AProcess for preparing phosphine oxidesSHIONOGI & CO·Filed 1983·Granted Apr 16, 1985·2 cites·15 claims
- 3645US4271295AOxazolinesSHIONOGI & CO·Filed 1980·Granted Jun 2, 1981·4 cites·1 claims
- 3745US4197402ACephalosporin analoguesSHIONOGI & CO·Filed 1979·Granted Apr 8, 1980·1 cites·10 claims
- 3843US4342685AInversion of the 3 α-amino group attached to the β-lactam ringSHIONOGI & CO·Filed 1980·Granted Aug 3, 1982·1 cites·5 claims
- 3941US4271296AOxazolinesSHIONOGI & CO·Filed 1980·Granted Jun 2, 1981·3 cites·6 claims
- 4040US4605738AProduction of 1-phthalidyl-5-fluorouracil derivativesSHIONOGI & CO·Filed 1983·Granted Aug 12, 1986·1 cites·6 claims
- 4139US4025553AProduction of o-hydroxybenzyl alcoholsSHIONOGI & CO·Filed 1975·Granted May 24, 1977·2 cites·7 claims
- 4237US4705852A1-oxadethia cephalosporin hydroxamic acid derivativesSHIONOGI & CO·Filed 1986·Granted Nov 10, 1987·1 cites·7 claims
- 4336US4533730A1-Oxadethiacepham compoundsSHIONOGI & CO·Filed 1983·Granted Aug 6, 1985·0 cites·6 claims
- 4436US4504659A1-Oxadethiacepham compoundsSHIONOGI & CO·Filed 1983·Granted Mar 12, 1985·0 cites·3 claims
- 4535US4448720AInversion of the 3α-amino group attached to the β-lactam ringSHIONOGI & CO·Filed 1982·Granted May 15, 1984·0 cites·12 claims
- 4632US4508909ASynthesis of hydroxyethyltetrazolethiol and etherified intermediates thereforSHIONOGI & CO·Filed 1983·Granted Apr 2, 1985·1 cites·18 claims
- 4732US4283333Aα-[4-Oxoazetidin-1-yl]-acetic acid compounds useful as intermediates in preparing 1-oxadethiacephalosporinsSHIONOGI & CO·Filed 1979·Granted Aug 11, 1981·0 cites·23 claims
- 4831US4592865AAzetidinone intermediates for cephalosporin analogsSHIONOGI & CO·Filed 1984·Granted Jun 3, 1986·0 cites·7 claims
- 4931US4211779A7α-Methoxy substituted cephalosporinsSHIONOGI & CO·Filed 1977·Granted Jul 8, 1980·0 cites·31 claims
- 5030US4183928AHaloarylmalonamidooxacephalosporinsSHIONOGI & CO·Filed 1978·Granted Jan 15, 1980·0 cites·8 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →