Inventor · disambiguated record
Masaaki Kawasaki
Also filed as: KAWASAKI MASAAKI
62 granted patents·11 pending applications·2,275 citations·filing 1988–2025
99Inventor score
Files withMITSUI CHEMICALS INC35MITSUI PETROCHEMICAL IND25KAWASAKI MASAAKI2KANESHIGE RYOUSUKE1MITSU CHEMICALS1
Top patents by PatentIndex Score
73 records- 0199US5504172APropylene polymer, propylene copolymer, and propylene elastomer prepared using novel bridged indenyl containing metallocenesMITSUI PETROCHEMICAL IND·Filed 1994·Granted Apr 2, 1996·554 cites·6 claims
- 0297US6864315B1Crosslinkable rubber compositions and use thereofMITSUI CHEMICALS INC·Filed 2000·Granted Mar 8, 2005·106 cites·88 claims
- 0397US5936053APropylene polymer, copolymers and elastomerMITSUI CHEMICALS INC·Filed 1997·Granted Aug 10, 1999·132 cites·4 claims
- 0495US5292845AEthylene/alpha-olefin/7-methyl-1,6-octadiene copolymer rubber and composition of the sameMITSUI PETROCHEMICAL IND·Filed 1993·Granted Mar 8, 1994·217 cites·12 claims
- 0591US5959046AProcesses for producing propylene polymer utilizing bis (1-(4-isopropyl-7-methyl-indenyl) zirconium halide-base catalyst componentsMITSUI CHEMICALS INC·Filed 1997·Granted Sep 28, 1999·55 cites·9 claims
- 0691US5739366ATransition metal compound containing substituted indenyl ringsMITSUI PETROCHEMICAL IND·Filed 1995·Granted Apr 14, 1998·54 cites·4 claims
- 0791US5705584APropylene homopolymer and propylene copolymer prepared using novel bridged indenyl-containing metalloceneMITSUI PETROCHEMICAL IND·Filed 1995·Granted Jan 6, 1998·40 cites·2 claims
- 0891US5610254AEthylene-α-olefin-nonconjugated polyene random copolymer, rubber composition, and process for preparing the random copolymerMITSUI PETROCHEMICAL IND·Filed 1995·Granted Mar 11, 1997·61 cites·14 claims
- 0990US7176269B2Curable composition and its useMITSUI CHEMICALS INC·Filed 2001·Granted Feb 13, 2007·47 cites·40 claims
- 1090US5767033ATransition metal compound and olefin polymerization catalyst component comprising said compoundMITSUI PETROCHEMICAL IND·Filed 1996·Granted Jun 16, 1998·50 cites·24 claims
- 1190US5753769AProcess for preparing propylene polymer composition and propylene polymer compositionMITSUI PETROCHEMICAL IND·Filed 1995·Granted May 19, 1998·66 cites·7 claims
- 1290US5244996AHot-melt adhesiveMITSUI PETROCHEMICAL IND·Filed 1991·Granted Sep 14, 1993·86 cites·7 claims
- 1389US6111021ARubber composition and process for the production thereofMITSUI CHEMICALS INC·Filed 1996·Granted Aug 29, 2000·73 cites·12 claims
- 1488US5698651AEthylene copolymer rubber, vulcanizable rubber composition containing the copolymer rubber, and process for preparing the copolymer rubberMITSUI PETROCHEMICAL IND·Filed 1996·Granted Dec 16, 1997·62 cites·10 claims
- 1587US6635727B1Ethylene copolymer rubber, process for producing the same, and useMITSUI CHEMICALS INC·Filed 2000·Granted Oct 21, 2003·30 cites·42 claims
- 1687US6156844APropylene polymer compositions containing a propylene homo- or co-polymer obtained using a bridged metallocene catalyst and another propylene homo- or co-polymerMITSUI CHEMICALS INC·Filed 1994·Granted Dec 5, 2000·36 cites·22 claims
- 1786US8410035B2Viscosity modifier of lubricating oil for power transmission system and lubricating oil composition for power transmission systemKANESHIGE RYOUSUKE·Filed 2006·Granted Apr 2, 2013·9 cites·5 claims
- 1886US6635705B2Olefinic thermoplastic elastomer composition and method for producing the sameMITSUI CHEMICALS INC·Filed 2001·Granted Oct 21, 2003·26 cites·5 claims
- 1986US5599885AProcess for the preparation of polyolefinMITSUI PETROCHEMICAL IND·Filed 1995·Granted Feb 4, 1997·63 cites·13 claims
- 2085US5807948AVulcanizable rubber composition containing ehtylene-α-olefin-nonconjugated polyene random copolymerMITSUI PETROCHEMICAL IND·Filed 1997·Granted Sep 15, 1998·34 cites·6 claims
- 2182US6743862B2Crosslinkable rubber compositions and uses thereofMITSUI CHEMICALS INC·Filed 2001·Granted Jun 1, 2004·20 cites·42 claims
- 2281US5837791AUnsaturated copolymer of ethylene and process for preparing the sameMITSUI PETROCHEMICAL IND·Filed 1997·Granted Nov 17, 1998·24 cites·13 claims
- 2379US7208548B2Crosslinkable rubber compositions and uses thereofMITSUI CHEMICALS INC·Filed 2004·Granted Apr 24, 2007·11 cites·6 claims
- 2479US6303727B1Linear triene compound and copolymerMITSUI CHEMICALS INC·Filed 1999·Granted Oct 16, 2001·21 cites·9 claims
- 2578US7906560B2Vulcanized rubber molded product, method of producing the same, and use of the molded productMITSUI CHEMICALS INC·Filed 2007·Granted Mar 15, 2011·2 cites·13 claims
- 2678US5854354AProcess for preparing propylene polymer composition and propylene polymer compositionMITSUI PETROCHEMICAL IND·Filed 1995·Granted Dec 29, 1998·39 cites·16 claims
- 2777US5744566AUnsaturated copolymer based on olefin and produciton and use thereofMITSUI CHEMICALS INC·Filed 1996·Granted Apr 28, 1998·33 cites·15 claims
- 2876US6410650B1Ethylene/α-olefin/unconjugated polyene copolymer rubber, rubber composition for sealing, molded rubber for sealing, and process for producing the molded rubberMITSUI CHEMICALS INC·Filed 2000·Granted Jun 25, 2002·18 cites·9 claims
- 2975US6784255B1Rubber composition for extrusion molding and for molding with mold and use thereofMITSUI CHEMICALS INC·Filed 2000·Granted Aug 31, 2004·13 cites·19 claims
- 3074US6943220B2Rubber compositions and their usesMITSUI CHEMICALS INC·Filed 2002·Granted Sep 13, 2005·10 cites·16 claims
- 3174US5677408APropylene elastomer and process for preparation thereofMITSUI PETROCHEMICAL IND·Filed 1994·Granted Oct 14, 1997·24 cites·8 claims
- 3273US6346577B1Heat-resistant rubber compositionMITSUI CHEMICALS INC·Filed 2000·Granted Feb 12, 2002·7 cites·10 claims
- 3372US10865064B2Sheet stacker, image forming apparatus, and image systemKAWASAKI MASAAKI·Filed 2019·Granted Dec 15, 2020·2 cites·6 claims
- 3471US5696214AProcess for preparing ethylene-α-olefin-nonconjugated polyene random copolymerMITSUI PETROCHEMICAL IND·Filed 1995·Granted Dec 9, 1997·21 cites·2 claims
- 3570US7622433B2Lubricating oil composition and internal combustion engine oilMITSUI CHEMICALS INC·Filed 2003·Granted Nov 24, 2009·7 cites·3 claims
- 3670US2025388428A1Medium processing apparatus and image forming systemKAWASAKI MASAAKI·Filed 2025·Application pending·0 cites
- 3769US6723794B2Olefin thermoplastic elastomer composition comprising crystalline polyolefin resin and ethylene/α-olefin/nonconjugated polyene copolymer rubberMITSUI CHEMICALS INC·Filed 2002·Granted Apr 20, 2004·14 cites·5 claims
- 3868US6040407AChain polyene group-containing norbornene compound and unsaturated ethylene copolymer using the sameMITSUI PETROCHEMICAL IND·Filed 1995·Granted Mar 21, 2000·21 cites·10 claims
- 3967US6787623B1Unconjugated cyclopolyene copolymer, rubber composition, and useMITSUI CHEMICALS INC·Filed 2000·Granted Sep 7, 2004·12 cites·34 claims
- 4066US6930152B2Propylene polymer compositionsMITSUI CHEMICALS INC·Filed 2003·Granted Aug 16, 2005·5 cites·12 claims
- 4165US6569936B1Rubber composition for a conveyor beltMITSUI CHEMICALS INC·Filed 2000·Granted May 27, 2003·5 cites·7 claims
- 4264US6608144B1Ethylene α-olefin/unconjugated polyene random copolymer rubber containing hydrolyzable silyl group and process for producing the sameSHINETSU CHEMICAL CO·Filed 2000·Granted Aug 19, 2003·6 cites·10 claims
- 4364US5349020AVulcanizable rubber compositionMITSUI PETROCHEMICAL IND·Filed 1993·Granted Sep 20, 1994·18 cites·13 claims
- 4461US6838522B2Propylene polymer compositionsMITSUI CHEMICALS INC·Filed 2001·Granted Jan 4, 2005·3 cites·17 claims
- 4559US6599984B1Rubber modified with ethylene/α-olefin(/diene) rubber(s)MITSUI CHEMICALS INC·Filed 2000·Granted Jul 29, 2003·3 cites·7 claims
- 4657US5430117ANonconjugated diene-vinyl aromatic-α-olefin interpolymersMITSUI PETROCHEMICAL IND·Filed 1994·Granted Jul 4, 1995·13 cites·18 claims
- 4755US5733983AHeat-resistant rubber compositionMITSUI PETROCHEMICAL IND·Filed 1996·Granted Mar 31, 1998·11 cites·5 claims
- 4854US5869563AEthylene/α-olefin/nonconjugated polyene copolymer rubber compositionMITSUI PETROCHEMICAL IND·Filed 1996·Granted Feb 9, 1999·12 cites·8 claims
- 4953US5387664AHigher α-olefin copolymer, vibration-insulating rubber molded product, and process for the preparaton of the rubber molded productMITSUI PETROCHEMICAL IND·Filed 1993·Granted Feb 7, 1995·12 cites·34 claims
- 5052US5969049AProcess for preparing propylene polymer composition and propylene polymer compositionMITSUI CHEMICALS INC·Filed 1997·Granted Oct 19, 1999·9 cites·7 claims
Showing the top 50 of 73 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →