Inventor · disambiguated record
Hajime Sadatoshi
Also filed as: SADATOSHI HAJIME
21 granted patents·460 citations·filing 1979–1999
96Inventor score
Files withSUMITOMO CHEMICAL CO21
Top patents by PatentIndex Score
21 records- 0192US6441081B1Polypropylene-base resin composition and products of injection molding thereofSUMITOMO CHEMICAL CO·Filed 1999·Granted Aug 27, 2002·92 cites·10 claims
- 0288US5641828APolypropylene compositions and film thereofSUMITOMO CHEMICAL CO·Filed 1995·Granted Jun 24, 1997·63 cites·14 claims
- 0385US6214952B1Propylene random copolymer and film laminate thereofSUMITOMO CHEMICAL CO·Filed 1998·Granted Apr 10, 2001·44 cites·14 claims
- 0477US4820775AAlpha-olefin block copolymer particles and process for the production thereofSUMITOMO CHEMICAL CO·Filed 1986·Granted Apr 11, 1989·27 cites·8 claims
- 0577US4675247ALaminated polypropylene filmSUMITOMO CHEMICAL CO·Filed 1984·Granted Jun 23, 1987·28 cites·4 claims
- 0673US5852100AThermoplastic resin compositionSUMITOMO CHEMICAL CO·Filed 1996·Granted Dec 22, 1998·29 cites·23 claims
- 0766US5723527AThermoplastic resin composition and injection molded article thereofSUMITOMO CHEMICAL CO·Filed 1996·Granted Mar 3, 1998·25 cites·16 claims
- 0864US5141994ACrystalline polypropylene and crystalline polypropylene compositionSUMITOMO CHEMICAL CO·Filed 1989·Granted Aug 25, 1992·19 cites·5 claims
- 0964US4761462APackaging propylene copolymer filmSUMITOMO CHEMICAL CO·Filed 1985·Granted Aug 2, 1988·19 cites·5 claims
- 1064US4337326AProcess for producing propylene-ethylene block copolymersSUMITOMO CHEMICAL CO·Filed 1980·Granted Jun 29, 1982·13 cites·3 claims
- 1159US5654372APolypropylene composition and the film thereofSUMITOMO CHEMICAL CO·Filed 1996·Granted Aug 5, 1997·18 cites·12 claims
- 1254US4670529APackaging shrink filmSUMITOMO CHEMICAL CO·Filed 1984·Granted Jun 2, 1987·12 cites·8 claims
- 1353US5914363ACrystalline ethylene-propylene copolymer with ethylene copolymer(s) and/or alkenyl aromatic-grafted rubberSUMITOMO CHEMICAL CO·Filed 1996·Granted Jun 22, 1999·15 cites·13 claims
- 1453US4254237AProcess for producing propylene-ethylene block copolymersSUMITOMO CHEMICAL CO·Filed 1979·Granted Mar 3, 1981·7 cites·5 claims
- 1552US5340878APolypropylene composition and film thereofSUMITOMO CHEMICAL CO·Filed 1993·Granted Aug 23, 1994·11 cites·11 claims
- 1646US6087443AThermoplastic resin compositionSUMITOMO CHEMICAL CO·Filed 1996·Granted Jul 11, 2000·10 cites·13 claims
- 1742US6451936B1Polypropylene random copolymer and film thereofSUMITOMO CHEMICAL CO·Filed 1995·Granted Sep 17, 2002·6 cites·13 claims
- 1841US5830968APropylene random copolymer and film laminate thereofSUMITOMO CHEMICAL CO·Filed 1997·Granted Nov 3, 1998·6 cites·7 claims
- 1941US5639537APolypropylene resin composition for oriented film and oriented film of the compositionSUMITOMO CHEMICAL CO·Filed 1995·Granted Jun 17, 1997·8 cites·17 claims
- 2040US4382065AFluidized bed apparatus and method of usingSUMITOMO CHEMICAL CO·Filed 1981·Granted May 3, 1983·5 cites·6 claims
- 2139US4259461AProcess for producing propylene-ethylene block copolymersSUMITOMO CHEMICAL CO·Filed 1979·Granted Mar 31, 1981·3 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Hajime Sadatoshi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →