Inventor · disambiguated record
Keizo Shimada
Also filed as: SHIMADA KEIZO · TAMURA YORIKAZU
30 granted patents·468 citations·filing 1974–1995
97Inventor score
Top patents by PatentIndex Score
30 records- 0194US4324706AFriction materialTEIJIN LTD·Filed 1981·Granted Apr 13, 1982·105 cites·16 claims
- 0283US4532275AFiber-reinforced composite materialsTEIJIN LTD·Filed 1982·Granted Jul 30, 1985·36 cites·19 claims
- 0377US4337155AChemical-resistant wholly aromatic polyamide fiber materialTEIJIN LTD·Filed 1981·Granted Jun 29, 1982·30 cites·15 claims
- 0476US4150025ANovel quinoline derivativesTEIJIN LTD·Filed 1977·Granted Apr 17, 1979·9 cites·5 claims
- 0574US4498957AAromatic polyamide paper-like sheet and processes for producing the sameTEIJIN LTD·Filed 1983·Granted Feb 12, 1985·27 cites·20 claims
- 0673US4342715AProcess for preparing wholly aromatic polyamide shaped articlesTEIJIN LTD·Filed 1980·Granted Aug 3, 1982·16 cites·9 claims
- 0772US4245066AWholly aromatic polyamide blend compositionTEIJIN LTD·Filed 1979·Granted Jan 13, 1981·13 cites·11 claims
- 0871US4309476ACore-in-sheath type aromatic polyamide fiber and process for producing the sameTEIJIN LTD·Filed 1980·Granted Jan 5, 1982·14 cites·7 claims
- 0970US4077960AImido-quinoline dyesTEIJIN LTD·Filed 1976·Granted Mar 7, 1978·7 cites·10 claims
- 1070US3966830AProcess for the nitration of halogenated benzene derivativesTEIJIN LTD·Filed 1974·Granted Jun 29, 1976·20 cites·7 claims
- 1170US3936509AProcess for separating dimethyl naphthalenes comprising 2,6-dimethyl naphthalenes as main componentTEIJIN LTD·Filed 1974·Granted Feb 3, 1976·8 cites·2 claims
- 1269US4529763AAromatic polyamide composition and processes for preparing film and fiber therefromTEIJIN LTD·Filed 1983·Granted Jul 16, 1985·17 cites·13 claims
- 1368US5329058AProcess for producing alkenylbenzeneTEIJIN LIMIED·Filed 1992·Granted Jul 12, 1994·12 cites·11 claims
- 1466US4398995APapery productTEIJIN LTD·Filed 1981·Granted Aug 16, 1983·22 cites·8 claims
- 1566US4355151AAromatic copolyamide containing 3,4'-diamino diphenylene moietyTEIJIN LTD·Filed 1980·Granted Oct 19, 1982·10 cites·10 claims
- 1666US4278779AAromatic polyamide compositionNAKAGAWA YASUO·Filed 1979·Granted Jul 14, 1981·19 cites·12 claims
- 1764US4507467AWholly aromatic halogenated polyamide fiber and filmTEIJIN LTD·Filed 1983·Granted Mar 26, 1985·17 cites·6 claims
- 1857US4743411AProcess for producing shaped silicon carbide article from a polycarbosilastyrene copolymerTEIJIN LTD·Filed 1986·Granted May 10, 1988·10 cites·16 claims
- 1957US4413114AAromatic copolyamide containing 3,4'-diphenylene moietyTEIJIN LTD·Filed 1982·Granted Nov 1, 1983·10 cites·10 claims
- 2055US4067870A8-Benzimido substituted quinaphthalone derivativesTEIJIN LTD·Filed 1976·Granted Jan 10, 1978·4 cites·10 claims
- 2153US4167506ADiazaphenalene derivatives and resin containing color compositionsTEIJIN LTD·Filed 1977·Granted Sep 11, 1979·4 cites·9 claims
- 2252US5723568APolyamide solution composition and methods for producing fibrids and paper-like sheets using the sameTEIJIN LTD·Filed 1995·Granted Mar 3, 1998·11 cites·13 claims
- 2348US4291142ACrosslinked aromatic polyamide film and process for producing the sameTEIJIN LTD·Filed 1979·Granted Sep 22, 1981·8 cites·11 claims
- 2447US4250073AAromatic polyamide composition having polar amide and halogenated hydrocarbon mixed solventTEIJIN LTD·Filed 1979·Granted Feb 10, 1981·8 cites·13 claims
- 2546US4482603AWholly aromatic polyamide fiber non-woven sheet and processes for producing the sameTEIJIN LTD·Filed 1983·Granted Nov 13, 1984·10 cites·9 claims
- 2643US5091271AShaped silion carbide-eased ceramic articleTEIJIN LTD·Filed 1989·Granted Feb 25, 1992·7 cites·2 claims
- 2743US4389521AProcess for preparing a cyclic amide polar solvent compositionTEIJIN LTD·Filed 1981·Granted Jun 21, 1983·6 cites·29 claims
- 2836US4826892APolycarbosilastyrene copolymer, method for producing the same, and process for producing shaped silicon carbide article from the sameTEIJIN LTD·Filed 1987·Granted May 2, 1989·5 cites·11 claims
- 2932US4897229AProcess for producing a shaped silicon carbide-based ceramic articleTEIJIN LTD·Filed 1988·Granted Jan 30, 1990·3 cites·19 claims
- 3027US5365001AMethod for preparing dialkylnaphthaleneTEIJIN LTD·Filed 1992·Granted Nov 15, 1994·0 cites·30 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →