Assignee
TOKUYAMA SODA KK
JP·97 granted patents·2,897 citations·filing 1971–1994
Top patents by PatentIndex Score
97 records- 0195US5130058APhotochromic compound, process for production thereof, use thereof and composition containing said photochromic compoundTOKUYAMA SODA KK·Filed 1989·Granted Jul 14, 1992·64 cites·14 claims
- 0295US5106998APhotochromic compound, composition and use thereofTOKUYAMA SODA KK·Filed 1990·Granted Apr 21, 1992·74 cites·3 claims
- 0394US4791144AMicroporous film and process for production thereofTOKUYAMA SODA KK·Filed 1987·Granted Dec 13, 1988·103 cites·30 claims
- 0494US4101395ACathode-structure for electrolysisTOKUYAMA SODA KK·Filed 1976·Granted Jul 18, 1978·67 cites·9 claims
- 0593US4618592AFine powder of aluminum nitride, composition and sintered body thereof and processes for their productionTOKUYAMA SODA KK·Filed 1984·Granted Oct 21, 1986·67 cites·36 claims
- 0693US4613643APorous sheetTOKUYAMA SODA KK·Filed 1984·Granted Sep 23, 1986·98 cites·8 claims
- 0793US4169023AElectrolytic diaphragms, and method of electrolysis using the sameTOKUYAMA SODA KK·Filed 1978·Granted Sep 25, 1979·73 cites·4 claims
- 0892US5349065APhotochromic compoundTOKUYAMA SODA KK·Filed 1992·Granted Sep 20, 1994·46 cites·10 claims
- 0992US5092888AHardening materialTOKUYAMA SODA KK·Filed 1990·Granted Mar 3, 1992·145 cites·15 claims
- 1092US4567030AAmorphous, spherical inorganic compound and process for preparation thereofTOKUYAMA SODA KK·Filed 1982·Granted Jan 28, 1986·100 cites·14 claims
- 1192US4369298ANovel cured resin, process for production thereof, and lens composed of said resin from bis(alkyleneoxyphenyl)-diacrylate, bis(alkyleneoxyphenyl)diallyl ether, bis(alkyleneoxyphenyl)diallyl carbonate monomersTOKUYAMA SODA KK·Filed 1981·Granted Jan 18, 1983·117 cites·31 claims
- 1291US4882438APhotochromatic compoundsTOKUYAMA SODA KK·Filed 1988·Granted Nov 21, 1989·31 cites·15 claims
- 1391US4279883AProcess for producing hydrogen peroxideTOKUYAMA SODA KK·Filed 1976·Granted Jul 21, 1981·61 cites·6 claims
- 1491US4009252AProcess for preparing hydrogen peroxideTOKUYAMA SODA KK·Filed 1975·Granted Feb 22, 1977·58 cites·9 claims
- 1589US5238735AMicroporous shaped article and process for preparation thereofTOKUYAMA SODA KK·Filed 1990·Granted Aug 24, 1993·100 cites·11 claims
- 1687US4960678APhotochromic compoundsTOKUYAMA SODA KK·Filed 1989·Granted Oct 2, 1990·22 cites·4 claims
- 1786US4983304AMembrane for separation of water-alcohol mixed liquid and process for preparation thereofTOKUYAMA SODA KK·Filed 1989·Granted Jan 8, 1991·32 cites·13 claims
- 1886US3953565AProcess for producing flame-retardant shaped articles of thermoplastic synthetic resinsTOKUYAMA SODA KK·Filed 1974·Granted Apr 27, 1976·35 cites·45 claims
- 1985US4788043AProcess for washing semiconductor substrate with organic solventTOKUYAMA SODA KK·Filed 1986·Granted Nov 29, 1988·116 cites·8 claims
- 2084US4948844AProcess for preparation of perfluorinated copolymerTOKUYAMA SODA KK·Filed 1989·Granted Aug 14, 1990·39 cites·8 claims
- 2184US4426176AL-Shaped concrete block and method for constructing a retaining wall by such L-shaped concrete blocksTOKUYAMA SODA KK·Filed 1981·Granted Jan 17, 1984·77 cites·4 claims
- 2284US4090931AAnode-structure for electrolysisTOKUYAMA SODA KK·Filed 1976·Granted May 23, 1978·28 cites·8 claims
- 2383US5260476ADiacrylate compoundsTOKUYAMA SODA KK·Filed 1992·Granted Nov 9, 1993·26 cites·1 claims
- 2483US4764497AAmorphous, spherical inorganic compound and process for preparation thereofTOKUYAMA SODA KK·Filed 1985·Granted Aug 16, 1988·64 cites·21 claims
- 2583US4642298AComposite nitride sintered bodyTOKUYAMA SODA KK·Filed 1985·Granted Feb 10, 1987·38 cites·11 claims
- 2682US5063183ASinterable aluminum nitride composition, sintered body from this composition and process for producing the sintered bodyTOKUYAMA SODA KK·Filed 1990·Granted Nov 5, 1991·40 cites·10 claims
- 2780US4217298AProcess for preparing organic carbonatesTOKUYAMA SODA KK·Filed 1978·Granted Aug 12, 1980·18 cites·12 claims
- 2879US4801368ANi/Sn cathode having reduced hydrogen overvoltageTOKUYAMA SODA KK·Filed 1987·Granted Jan 31, 1989·32 cites·19 claims
- 2977US3946079AMethod of condensing ketonesTOKUYAMA SODA KK·Filed 1971·Granted Mar 23, 1976·24 cites·4 claims
- 3076US5221455ABipolar membrane and method for its productionTOKUYAMA SODA KK·Filed 1991·Granted Jun 22, 1993·36 cites·18 claims
- 3176US4277457AAlkali calcium silicates and process for preparation thereofTOKUYAMA SODA KK·Filed 1979·Granted Jul 7, 1981·19 cites·29 claims
- 3275US4755620AAcrylate compound and composition containing the sameTOKUYAMA SODA KK·Filed 1986·Granted Jul 5, 1988·49 cites·9 claims
- 3374US4535102AAdhesive coating materialTOKUYAMA SODA KK·Filed 1983·Granted Aug 13, 1985·26 cites·24 claims
- 3474US4190516ACathodeTOKUYAMA SODA KK·Filed 1978·Granted Feb 26, 1980·24 cites·11 claims
- 3574US3996298AProcess for the hydration of olefinsTOKUYAMA SODA KK·Filed 1974·Granted Dec 7, 1976·12 cites·4 claims
- 3673US4929317AProcess for preparation of perfluoro organic compoundsTOKUYAMA SODA KK·Filed 1987·Granted May 29, 1990·17 cites·10 claims
- 3773US4767580AProcess for preparation of porous sheetsTOKUYAMA SODA KK·Filed 1986·Granted Aug 30, 1988·25 cites·7 claims
- 3873US4166014AElectrolytic diaphragms, and method of electrolysis using the sameTOKUYAMA SODA KK·Filed 1975·Granted Aug 28, 1979·18 cites·6 claims
- 3972US5049253AElectrode apparatus for dialysisTOKUYAMA SODA KK·Filed 1989·Granted Sep 17, 1991·25 cites·13 claims
- 4072US4918136AAdhesive compositionTOKUYAMA SODA KK·Filed 1989·Granted Apr 17, 1990·47 cites·15 claims
- 4172US4533701AAdhesive coating materialTOKUYAMA SODA KK·Filed 1983·Granted Aug 6, 1985·27 cites·14 claims
- 4271US5214116AResin derived from sulfur-containing unsaturated compound and having a high refractive indexTOKUYAMA SODA KK·Filed 1991·Granted May 25, 1993·26 cites·3 claims
- 4371US4267084AVinyl chloride polymer blend compositionTOKUYAMA SODA KK·Filed 1979·Granted May 12, 1981·22 cites·18 claims
- 4470US5036030AProcess for preparation of alkaline earth metal aluminosilicate sintered bodyTOKUYAMA SODA KK·Filed 1989·Granted Jul 30, 1991·21 cites·12 claims
- 4569US4780422ADyed inorganic composite particles and process for production thereofTOKUYAMA SODA KK·Filed 1987·Granted Oct 25, 1988·33 cites·28 claims
- 4668US4877854ACurable compositionTOKUYAMA SODA KK·Filed 1987·Granted Oct 31, 1989·43 cites·10 claims
- 4767US5171763ACurable compositionTOKUYAMA SODA KK·Filed 1991·Granted Dec 15, 1992·38 cites·3 claims
- 4867US5124021ASolid electrolyte gas sensor and method of measuring concentration of gas to be detected in gas mixtureTOKUYAMA SODA KK·Filed 1990·Granted Jun 23, 1992·35 cites·11 claims
- 4967US4802907AN-substituted chloroacetanilides processes for production thereof, and herbicidal composition comprising the sameTOKUYAMA SODA KK·Filed 1987·Granted Feb 7, 1989·12 cites·4 claims
- 5066US4923611ANovel anion-exchange membraneTOKUYAMA SODA KK·Filed 1989·Granted May 8, 1990·23 cites·8 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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