Inventor · disambiguated record
Yoichi Ozawa
Also filed as: OZAWA YOICHI · OZAWA YOICHI F
72 granted patents·15 pending applications·2,107 citations·filing 1984–2021
99Inventor score
Top patents by PatentIndex Score
87 records- 0198US6992147B1Modified polymers prepared with lanthanide-based catalystsBRIDGESTONE CORP·Filed 2000·Granted Jan 31, 2006·178 cites·14 claims
- 0298US6977281B1Modified polymers prepared with lanthanide-based catalystsBRIDGESTONE CORP·Filed 2000·Granted Dec 20, 2005·164 cites·15 claims
- 0398US6897270B2Continuous process for the production of conjugated diene polymers having narrow molecular weight distribution and products therefromBRIDGESTONE CORP·Filed 2002·Granted May 24, 2005·97 cites·14 claims
- 0497US8017695B2Method for producing functionalized cis-1,4-polydienes having high cis-1,4-linkage content and high functionalityBRIDGESTONE CORP·Filed 2007·Granted Sep 13, 2011·45 cites·39 claims
- 0597US7094849B2Bulk polymerization process for producing polydienesBRIDGESTONE CORP·Filed 2003·Granted Aug 22, 2006·92 cites·21 claims
- 0697US5329005ASoluble anionic polymerization initiators and preparation thereofBRIDGESTONE CORP·Filed 1992·Granted Jul 12, 1994·150 cites·5 claims
- 0796US7750087B2Modified polymers prepared with lanthanide-based catalystsBRIDGESTONE CORP·Filed 2005·Granted Jul 6, 2010·18 cites·20 claims
- 0896US7205370B2Polymeric nano-particles of flower-like structure and applicationsBRIDGESTONE CORP·Filed 2004·Granted Apr 17, 2007·62 cites·6 claims
- 0995US7642322B2Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agentsBRIDGESTONE CORP·Filed 2005·Granted Jan 5, 2010·19 cites·16 claims
- 1095US6437205B1Low molecular weight high-cis polybutadienes and their use in high molecular weight-low molecular weight high-cis polybutadiene blendsBRIDGESTONE CORP·Filed 2000·Granted Aug 20, 2002·73 cites·78 claims
- 1195US5393721AAnionic polymerization initiators and reduced hysteresis products therefomBRIDGESTONE CORP·Filed 1992·Granted Feb 28, 1995·105 cites·18 claims
- 1294US5721246AHeterobicyclic sulfonamide and sulfonic ester derivativesEISAI CO LTD·Filed 1994·Granted Feb 24, 1998·101 cites·19 claims
- 1393US7968652B2Modified conjugated diene copolymer, rubber compositions and tiresBRIDGESTONE CORP·Filed 2006·Granted Jun 28, 2011·18 cites·32 claims
- 1493US6787534B2Sulfonamide-containing heterocyclic compoundsEISAI CO LTD·Filed 2000·Granted Sep 7, 2004·82 cites·9 claims
- 1593US6699813B2Lanthanide-based catalyst composition for the manufacture of polydienesBRIDGESTONE CORP·Filed 2002·Granted Mar 2, 2004·126 cites·30 claims
- 1693US5578542ASoluble anionic polymerization initiators and method of preparing sameBRIDGESTONE CORP·Filed 1994·Granted Nov 26, 1996·74 cites·5 claims
- 1793US5514753AProcess for preparing a block copolymerBRIDGESTONE CORP·Filed 1994·Granted May 7, 1996·95 cites·25 claims
- 1892US7786236B2Polymeric nano-particles of flower-like structure and applicationsBRIDGESTONE CORP·Filed 2007·Granted Aug 31, 2010·13 cites·15 claims
- 1991US7671136B2Modified polymers prepared with lanthanide-based catalystsBRIDGESTONE CORP·Filed 2005·Granted Mar 2, 2010·14 cites·22 claims
- 2091US6025450AAmine containing polymers and products therefromBRIDGESTONE CORP·Filed 1998·Granted Feb 15, 2000·71 cites·37 claims
- 2190US9623705B2Method for producing modified conjugated diene polymer/copolymer, modified conjugated diene polymer/copolymer, and rubber composition and tire using the sameTANAKA KEN·Filed 2009·Granted Apr 18, 2017·21 cites·17 claims
- 2289US6084025AReduced hysteresis products prepared with anionic polymerization initiatorsBRIDGESTONE CORP·Filed 1999·Granted Jul 4, 2000·47 cites·35 claims
- 2387US8258332B2Polymers functionalized with halosilanes containing an amino groupHOGAN TERRENCE E·Filed 2008·Granted Sep 4, 2012·6 cites·25 claims
- 2486US6765066B2Copolymers prepared by using both anionic polymerization techniques and coordination catalystsBRIDGESTONE CORP·Filed 2000·Granted Jul 20, 2004·24 cites·20 claims
- 2586US6326035B1Method for the separation of rapeseed germ and rapeseed germ oilAJINOMOTO KK·Filed 2000·Granted Dec 4, 2001·21 cites·9 claims
- 2685US8309657B2Rubber compositionMATSUSHITA JUNKO·Filed 2009·Granted Nov 13, 2012·6 cites·15 claims
- 2785US7037548B2Soybean embryo fat/oil and process for producing soybean material with high embryo concentrationAJINOMOTO KK·Filed 2004·Granted May 2, 2006·17 cites·21 claims
- 2885US6814998B1Soybean embryo fat/oil and process for producing soybean material with high embryo concentrationAJINOMOTO KK·Filed 2000·Granted Nov 9, 2004·20 cites·21 claims
- 2983US7906631B2Method of producing rare earth salt of dialkyl phosphate or dioleyl phosphateBRIDGESTONE CORP·Filed 2008·Granted Mar 15, 2011·4 cites·18 claims
- 3082US5625017AProcess for preparing a polymer using lithium initiator prepared by in situ preparationBRIDGESTONE CORP·Filed 1995·Granted Apr 29, 1997·44 cites·15 claims
- 3180US6469043B1Sulfonamide-containing indole compoundsEISAI CO LTD·Filed 2000·Granted Oct 22, 2002·13 cites·22 claims
- 3280US5959048ASoluble anionic polymerization initiators for preparing functionalized polymerBRIDGESTONE CORP·Filed 1997·Granted Sep 28, 1999·21 cites·16 claims
- 3380US5674798AHydrocarbon soluble anionic polymerization initiatorsBRIDGESTONE CORP·Filed 1994·Granted Oct 7, 1997·23 cites·14 claims
- 3479US7767774B2Silyl-diamine initiators for anionic polymerization of 1,3-butadiene and styrene, and rubber compositionsBRIDGESTONE CORP·Filed 2005·Granted Aug 3, 2010·10 cites·26 claims
- 3578US8507627B2Aromatic vinyl compound-conjugated diene compound copolymer and method of producing the same as well as rubber composition and tireNAKAGAWA RYUJI·Filed 2009·Granted Aug 13, 2013·4 cites·9 claims
- 3676US8772269B2Use of sulfonamide-including compounds in combination with angiogenesis inhibitorsOWA TAKASHI·Filed 2005·Granted Jul 8, 2014·2 cites·6 claims
- 3776US8557915B2Process for producing conjugated diene polymer, conjugated diene polymer, and rubber compositionNAKAMURA TAKAHIRO·Filed 2012·Granted Oct 15, 2013·2 cites·25 claims
- 3875US8962752B2Rubber composition and tire using the same as well as modified conjugated diene-based polymer and method for producing the sameBRIDGESTONE CORP·Filed 2014·Granted Feb 24, 2015·1 cites·6 claims
- 3974US9527921B2Anti human Notch4 antibodyEISAI R&D MAN CO LTD·Filed 2016·Granted Dec 27, 2016·2 cites·29 claims
- 4073US6472464B1Styrene-butadiene copolymer and rubber composition comprising the copolymerBRIDGESTONE CORP·Filed 1997·Granted Oct 29, 2002·32 cites·15 claims
- 4172US9969812B2Anti human Notch4 antibodyEISAI R&D MAN CO LTD·Filed 2016·Granted May 15, 2018·1 cites·14 claims
- 4272US8618199B2Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agentsOZAWA YOICHI F·Filed 2012·Granted Dec 31, 2013·1 cites·11 claims
- 4372US8153723B2Process for producing conjugated diene polymer, conjugated diene polymer, and rubber compositionNAKAMURA TAKAHIRO·Filed 2006·Granted Apr 10, 2012·1 cites·18 claims
- 4471US8232352B2Rubber composition and tire using the sameMATSUSHITA JUNKO·Filed 2008·Granted Jul 31, 2012·3 cites·15 claims
- 4570US8729184B2Rubber composition and tire using the same as well as modified conjugated diene-based polymer and method for producing the sameMATSUSHITA JUNKO·Filed 2009·Granted May 20, 2014·2 cites·5 claims
- 4670US7893153B2Process for producing modified conjugated diene polymer, modified conjugated diene polymer obtained by the process, and rubber composition containing the sameJSR CORP·Filed 2006·Granted Feb 22, 2011·8 cites·19 claims
- 4770US6673787B2Sulfonamide-containing indole compoundsEISAI CO LTD·Filed 2002·Granted Jan 6, 2004·4 cites·19 claims
- 4869US5723533ASoluble anionic polymerization initiators and products therefromBRIDGESTONE CORP·Filed 1996·Granted Mar 3, 1998·18 cites·16 claims
- 4968US6638964B2Sulfonamide-containing indole compoundsEISAI CO LTD·Filed 2002·Granted Oct 28, 2003·3 cites·9 claims
- 5068US5700874AAlkoxysilane-modified polymer and adhesive composition using said polymerBRIDGESTONE CORP·Filed 1995·Granted Dec 23, 1997·24 cites·15 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yoichi Ozawa 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 →