Assignee
OTSUKA KAGAKU YAKUHIN
49 granted patents·381 citations·filing 1972–1988
Top patents by PatentIndex Score
49 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
- 0387US4182621AComposition for inhibiting the growth of plantsOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Jan 8, 1980·29 cites·6 claims
- 0483US4496469AHeat-insulating refractory material consisting alkali titanate and silicon resinOTSUKA KAGAKU YAKUHIN·Filed 1983·Granted Jan 29, 1985·40 cites·41 claims
- 0583US4247651AProcess for preparing foamed synthetic resin productsOTSUKA KAGAKU YAKUHIN·Filed 1979·Granted Jan 27, 1981·46 cites·5 claims
- 0680US4384144AProcess for preparing cyclopentenone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1981·Granted May 17, 1983·17 cites·9 claims
- 0779US4465868AProcess for preparing o-methallyloxyphenolOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Aug 14, 1984·19 cites·17 claims
- 0878US4689411A4-thio azetidinone intermediates and process for the preparation of the sameOTSUKA KAGAKU YAKUHIN·Filed 1986·Granted Aug 25, 1987·12 cites·3 claims
- 0974US4482491AThiazolinoazetidinone derivatives and process for the preparation of the sameOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Nov 13, 1984·7 cites·9 claims
- 1072US4186141AProcess for preparing 2-pentynyl etherOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Jan 29, 1980·6 cites·4 claims
- 1168US4059595AProcess for preparing 3-oxy-4H-pyran-4-one derivativesOTSUKA KAGAKU YAKUHIN·Filed 1976·Granted Nov 22, 1977·6 cites·10 claims
- 1263US4413005ACarbamate derivatives and insecticidal, miticidal or nematocidal compositions containing the sameOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Nov 1, 1983·7 cites·12 claims
- 1361US4176135AProcess for preparing hydrazodicarbonamideOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Nov 27, 1979·7 cites·13 claims
- 1460US4566996AProcess for preparing azetidinone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1984·Granted Jan 28, 1986·4 cites·8 claims
- 1560US4532077AThiazolineazetidinone-type compoundsOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Jul 30, 1985·4 cites·2 claims
- 1659US4853468AProcess for the preparation of cephem derivativesOTSUKA KAGAKU YAKUHIN·Filed 1988·Granted Aug 1, 1989·5 cites·2 claims
- 1757US4465867AProcess for preparing o-methallyloxyphenolOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Aug 14, 1984·6 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
- 2150US3940248AMethod for inhibiting corrosion of metalOTSUKA KAGAKU YAKUHIN·Filed 1973·Granted Feb 24, 1976·11 cites·2 claims
- 2248US3932618AAnti-inflammatory compositionsOTSUKA KAGAKU YAKUHIN·Filed 1972·Granted Jan 13, 1976·10 cites·8 claims
- 2347US4464237AProcess for preparing β-lactam derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Aug 7, 1984·6 cites·8 claims
- 2445US4789740AHalogenation process for preparing 2-(oxoazetidinyl)-3-chloromethyl-3-butenoateOTSUKA KAGAKU YAKUHIN·Filed 1987·Granted Dec 6, 1988·2 cites·12 claims
- 2543US4226943AFoamable composition of vinyl chloride polymers and method of producing open cell sheetOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Oct 7, 1980·8 cites·13 claims
- 2642US4238615ACyclopentanone intermediates 2-(benzothiazolyl-2)OTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Dec 9, 1980·1 cites·4 claims
- 2742US4173707ACyclopentanol derivativesOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Nov 6, 1979·1 cites·3 claims
- 2840US4544766AProcess for preparing aryl acetic acid derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Oct 1, 1985·2 cites·3 claims
- 2940US4237308AProcess for preparing 2-cyclopentenone derivative and perfume composition containing the derivativeOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Dec 2, 1980·2 cites·1 claims
- 3039US4532339AProcess for purifying aminosulfenylcarbamate derivativesOTSUKA KAGAKU YAKUHIN·Filed 1984·Granted Jul 30, 1985·1 cites·7 claims
- 3139US4150039A2,2'-Bis(3,4-Epoxy-5-oxotetrahydropyran)ethersOTSUKA KAGAKU YAKUHIN·Filed 1977·Granted Apr 17, 1979·1 cites·1 claims
- 3238US4451662AProcess for preparing 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuranOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted May 29, 1984·1 cites·10 claims
- 3336US4334066AHeterocyclic containing 5-oxo pyransOTSUKA KAGAKU YAKUHIN·Filed 1981·Granted Jun 8, 1982·1 cites·2 claims
- 3436US4247412ABlowing compositionOTSUKA KAGAKU YAKUHIN·Filed 1979·Granted Jan 27, 1981·5 cites·6 claims
- 3535US4482435AProcess for preparing thiazolidine compoundsOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Nov 13, 1984·2 cites·16 claims
- 3635US4392923AProcess for preparing thiazolinozetidinone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Jul 12, 1983·2 cites·11 claims
- 3735US4166188A2-(2-pentynyl) cyclopentanol derivativesOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Aug 28, 1979·0 cites·1 claims
- 3835US4163111A2-Cyclopentenone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1978·Granted Jul 31, 1979·0 cites·3 claims
- 3933US4801720AAzetidinone disulfides and a ring opening process for preparing the sameOTSUKA KAGAKU YAKUHIN·Filed 1987·Granted Jan 31, 1989·0 cites·1 claims
- 4033US4113892AMethod of processing fermented soybeans and food products prepared therefromOTSUKA KAGAKU YAKUHIN·Filed 1976·Granted Sep 12, 1978·6 cites·24 claims
- 4132US4379032AProcess for preparing oxazolineazetidinone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Apr 5, 1983·1 cites·10 claims
- 4231US4475992ACyclohexadiene derivatives and process for preparing the sameOTSUKA KAGAKU YAKUHIN·Filed 1983·Granted Oct 9, 1984·0 cites·9 claims
- 4331US4429164ACyclohexadiene derivatives and process for preparing the sameOTSUKA KAGAKU YAKUHIN·Filed 1981·Granted Jan 31, 1984·0 cites·1 claims
- 4431US4401528AProcess for preparing 2-oxycephalosporin derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Aug 30, 1983·0 cites·8 claims
- 4530US4540708ASulfenyl carbamate derivatives and insecticidal compositions containing the sameOTSUKA KAGAKU YAKUHIN·Filed 1983·Granted Sep 10, 1985·0 cites·4 claims
- 4630US4470887AProcess for preparing thiazolinoazetidinone derivativesOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Sep 11, 1984·0 cites·9 claims
- 4730US4339607AProcess for preparing anisaldehydeOTSUKA KAGAKU YAKUHIN·Filed 1980·Granted Jul 13, 1982·3 cites·12 claims
- 4828US4036936AProcess for preparing hydrazine hydrateOTSUKA KAGAKU YAKUHIN·Filed 1975·Granted Jul 19, 1977·2 cites·14 claims
- 4925US4557750ASulfinamide derivatives, a process for preparing the derivatives and herbicides containing the sameOTSUKA KAGAKU YAKUHIN·Filed 1982·Granted Dec 10, 1985·0 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when OTSUKA KAGAKU YAKUHIN files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →