Inventor · disambiguated record
Sigeru Torii
Also filed as: KOBAYASHI YUICHI · KUDAI TOSHIHIRO · TANAKA HIDEO · TORII SIGERU
58 granted patents·294 citations·filing 1977–2004
98Inventor score
Files withOTSUKA KAGAKU YAKUHIN24OTSUKA KAGAKU KK22TAIHO PHARMACEUTICAL CO LTD5OUCHI SHINKO KAGAKU KOGYO KK4INST OF CREATIVE CHEMISTRY CO LTD1
Top patents by PatentIndex Score
58 records- 0193US4784734AAzetidinone derivatives and process for the preparation of the sameOTSUKA KAGAKU YAKUHIN·Filed 1987·Granted Nov 15, 1988·49 cites·4 claims
- 0293US4588835AProcess for preparing alkoxyphenolsOTSUKA KAGAKU YAKUHIN·Filed 1984·Granted May 13, 1986·41 cites·5 claims
- 0388US4127454APreparation of benzothiazolylsulfenamidesOUCHI SHINKO KAGAKU KOGYO KK·Filed 1977·Granted Nov 28, 1978·24 cites·13 claims
- 0481US4861768A2 β-substituted thiomethylpenicillin derivatives and their preparation and useTAIHO PHARMACEUTICAL CO LTD·Filed 1987·Granted Aug 29, 1989·17 cites·26 claims
- 0578US4689411A4-thio azetidinone intermediates and process for the preparation of the sameOTSUKA KAGAKU YAKUHIN·Filed 1986·Granted Aug 25, 1987·12 cites·3 claims
- 0674US4482491AThiazolinoazetidinone derivatives and process for the preparation of the sameOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Nov 13, 1984·7 cites·9 claims
- 0772US4219393AProcess for producing sulfenimidesOUCHI SHINKO KAGAKU KOGYO KK·Filed 1979·Granted Aug 26, 1980·8 cites·21 claims
- 0872US4186141AProcess for preparing 2-pentynyl etherOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Jan 29, 1980·6 cites·4 claims
- 0971US4891369A2β-Substituted-methylpenicillanic acid derivatives, and salts and esters thereofTAIHO PHARMACEUTICAL CO LTD·Filed 1987·Granted Jan 2, 1990·19 cites·19 claims
- 1066US4609438AProcess for preparing thiosulfonate derivativesOTSUKA KAGAKU KK·Filed 1984·Granted Sep 2, 1986·15 cites·12 claims
- 1162US4898939AProcess for preparing 2β-substituted-methylpenicillin derivativesTAIHO PHARMACEUTICAL CO LTD·Filed 1989·Granted Feb 6, 1990·6 cites·9 claims
- 1260US4566996AProcess for preparing azetidinone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1984·Granted Jan 28, 1986·4 cites·8 claims
- 1360US4532077AThiazolineazetidinone-type compoundsOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Jul 30, 1985·4 cites·2 claims
- 1459US4853468AProcess for the preparation of cephem derivativesOTSUKA KAGAKU YAKUHIN·Filed 1988·Granted Aug 1, 1989·5 cites·2 claims
- 1558US5204458AProcess for preparing cephem derivativesOTSUKA KAGAKU KK·Filed 1992·Granted Apr 20, 1993·6 cites·1 claims
- 1656US5196530AProcess for preparing 2-exo-methylenepenam derivativesOTSUKA KAGAKU KK·Filed 1992·Granted Mar 23, 1993·5 cites·3 claims
- 1756US4798890AProcess for preparation of azetidinone derivativesOTSUKA KAGAKU KK·Filed 1988·Granted Jan 17, 1989·4 cites·6 claims
- 1855US4499265AProcess for preparing 3-exo-methylenecepham derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Feb 12, 1985·3 cites·18 claims
- 1952US4810788AAzetidinone disulfide derivatives and a process for preparing the sameOTSUKA KAGAKU YAKUHIN·Filed 1987·Granted Mar 7, 1989·3 cites·1 claims
- 2052US4603014AThiazolinoazetidinone derivatives and process for the preparation of the sameOTSUKA KAGAKU YAKUHIN·Filed 1984·Granted Jul 29, 1986·2 cites·33 claims
- 2147US5968335AProcess for preparing 3-alkoxymethylcephem compoundsOTSUKA KAGAKU KK·Filed 1997·Granted Oct 19, 1999·3 cites·2 claims
- 2247US4464237AProcess for preparing β-lactam derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Aug 7, 1984·6 cites·8 claims
- 2346US7931782B2Method for recovering a liquid medium and system for recover a liquid mediumINST OF CREATIVE CHEMISTRY CO LTD·Filed 2004·Granted Apr 26, 2011·3 cites·2 claims
- 2446US4895941AProcess for preparing 2α-methyl-2β-(1,2,3-triazol-1-yl)methylpenam-3α-carboxylic acid derivativesTAIHO PHARMACEUTICAL CO LTD·Filed 1989·Granted Jan 23, 1990·7 cites·12 claims
- 2545US4789740AHalogenation process for preparing 2-(oxoazetidinyl)-3-chloromethyl-3-butenoateOTSUKA KAGAKU YAKUHIN·Filed 1987·Granted Dec 6, 1988·2 cites·12 claims
- 2644US4599151AProcess for preparing 2,2-bishalomethylpenam derivativesOTSUKA KAGAKU KK·Filed 1985·Granted Jul 8, 1986·2 cites·10 claims
- 2744US4148697APreparation of tetraalkylthiuram disulfidesOUCHI SHINKO KAGAKU KOGYO KK·Filed 1978·Granted Apr 10, 1979·2 cites·10 claims
- 2843US5126447AProcess for preparation of β-lactam derivative from an alkenyl substituted β-lactam derivative using a ruthenium or rhenium catalyst and a periodic acidOTSUKA KAGAKU KK·Filed 1991·Granted Jun 30, 1992·2 cites·13 claims
- 2942US4933444AProcess for preparing 2β-substituted-methylpenicillin derivativesTAIHO PHARMACEUTICAL CO LTD·Filed 1989·Granted Jun 12, 1990·4 cites·11 claims
- 3042US4238615ACyclopentanone intermediates 2-(benzothiazolyl-2)OTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Dec 9, 1980·1 cites·4 claims
- 3142US4173707ACyclopentanol derivativesOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Nov 6, 1979·1 cites·3 claims
- 3240US6043356AProcess for preparing β-lactam compoundOTSUKA KAGAKU KK·Filed 1999·Granted Mar 28, 2000·1 cites·5 claims
- 3340US4237308AProcess for preparing 2-cyclopentenone derivative and perfume composition containing the derivativeOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Dec 2, 1980·2 cites·1 claims
- 3439US4336202A1,3-Cyclohexanedione derivativesKURARAY CO·Filed 1981·Granted Jun 22, 1982·1 cites·5 claims
- 3537US5929233ACyclization for preparing halo-cephemsOTSUKA KAGAKU KK·Filed 1996·Granted Jul 27, 1999·1 cites·9 claims
- 3637US4120764AProcess for producing a tetraalkylthiuram disulfideOUCHI SHINKO KAGAKU KOGYO KK·Filed 1978·Granted Oct 17, 1978·3 cites·8 claims
- 3736US4958018AMethod for production of 3-exomethylenecepham derivativesOTSUKA KAGAKU KK·Filed 1989·Granted Sep 18, 1990·3 cites·17 claims
- 3836US4629542AProcess for preparing 3-exomethylenecepham derivativesOTSUKA KAGAKU KK·Filed 1985·Granted Dec 16, 1986·2 cites·14 claims
- 3935US4482435AProcess for preparing thiazolidine compoundsOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Nov 13, 1984·2 cites·16 claims
- 4035US4392923AProcess for preparing thiazolinozetidinone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Jul 12, 1983·2 cites·11 claims
- 4135US4166188A2-(2-pentynyl) cyclopentanol derivativesOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Aug 28, 1979·0 cites·1 claims
- 4235US4163111A2-Cyclopentenone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Jul 31, 1979·0 cites·3 claims
- 4333US5905147AProcess for preparing β-lactam compoundOTSUKA KAGAKU KK·Filed 1996·Granted May 18, 1999·0 cites·6 claims
- 4433US4801720AAzetidinone disulfides and a ring opening process for preparing the sameOTSUKA KAGAKU YAKUHIN·Filed 1987·Granted Jan 31, 1989·0 cites·1 claims
- 4532US6197185B1Process for preparing beta lactam compoundOTSUKA KAGAKU KK·Filed 1999·Granted Mar 6, 2001·0 cites·5 claims
- 4632US6150519AProcess for preparing β-lactam derivativesOTSUKA KAGAKU KK·Filed 1999·Granted Nov 21, 2000·0 cites·5 claims
- 4732US6011151AProcess for preparing β-lactam halide compoundOTSUKA KAGAKU KK·Filed 1996·Granted Jan 4, 2000·0 cites·4 claims
- 4832US5206361AThiazolinoazetidinone derivativeOTSUKA KAGAKU KK·Filed 1991·Granted Apr 27, 1993·1 cites·1 claims
- 4932US4379032AProcess for preparing oxazolineazetidinone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Apr 5, 1983·1 cites·10 claims
- 5031US5986091AProcess for preparation of β-lactam compoundsOTSUKA KAGAKU KK·Filed 1996·Granted Nov 16, 1999·0 cites·6 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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