Patents by Inventor Fumihiko Shimizu
Fumihiko Shimizu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20060270794Abstract: Soft propylene-based resin compositions, which comprise substantially the following block (I) and block (II): Block (I): propylene-based polymer having propylene unit chain segments that bond in a mode of head-to-tail bonding, in which the chain segment has an isotactic block-containing stereoblock structure; Block (II): copolymer containing at least propylene and ethylene, exhibit good flexibility, transparency, and heat resistance.Type: ApplicationFiled: August 2, 2006Publication date: November 30, 2006Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Fumihiko Shimizu, Kenjirou Takayanagi, Naomasa Sato, Fumiyoshi Yamada, Shixuan Xin
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Patent number: 7122604Abstract: This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25° C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.Type: GrantFiled: November 12, 2004Date of Patent: October 17, 2006Assignee: Mitsubishi Chemical CorporationInventors: Masato Onoe, Teruaki Ashihara, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Akio Tanna
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Patent number: 7115694Abstract: An object of the present invention is to provide a novel propylene-based polymer capable of providing a propylene-based polymer with a good adhesion and coatability. The present invention lies in a propylene-based polymer having a propylene component with several characteristics including a weight-average molecular weight Mw from not smaller than 5,000 to less than 1,000,000 as measured by GPC, and Regio irregular units based on 2,1-inserted propylene monomer and/or 1,3-inserted propylene monomer present in its main chain and the sum of the ratio of regio irregular units based on 2,1-insertion and 1,3-insertion to all propylene insertions not smaller than 0.05%.Type: GrantFiled: August 29, 2003Date of Patent: October 3, 2006Assignee: Mitsubishi Chemical CorporationInventors: Fumihiko Shimizu, Naomasa Sato, Akira Kuwahara, Fumiyoshi Yamada, Akio Tanna
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Patent number: 7105604Abstract: Soft propylene-based resin compositions, which comprise substantially the following block (I) and block (II): Block (I): propylene-based polymer having propylene unit chain segments that bond in a mode of head-to-tail bonding, in which the chain segment has an isotactic block-containing stereoblock structure; Block (II): copolymer containing at least propylene and ethylene, exhibit good flexibility, transparency, and heat resistance.Type: GrantFiled: July 29, 2004Date of Patent: September 12, 2006Assignee: Mitsubishi Chemical CorporationInventors: Fumihiko Shimizu, Kenjirou Takayanagi, Naomasa Sato, Fumiyoshi Yamada, Shixuan Xin
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Publication number: 20060178486Abstract: A polymer is provided which, even when no halogen such as chlorine is contained therein, has satisfactory adhesiveness and applicability in coating to propylene polymers as substrates and which has surface hydrophilicity. It is a propylene block copolymer characterized by being represented by the following formula (I): PP-a-R??(I) (wherein PP represents a polypropylene segment in which the proportion of pentads represented by mmmm to all pentads is 10-60%; symbol a represents a group which connects PP to R; and R represents a polymer segment containing polar groups).Type: ApplicationFiled: January 17, 2006Publication date: August 10, 2006Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Toru Suzuki, Fumihiko Shimizu
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Publication number: 20050281990Abstract: An electrophotographic transfer paper has a substrate and a thermoplastic foamed resin layer which is provided on at least one surface of the substrate and has pores. In the electrophotographic transfer paper, the temperature at which the viscosity of the thermoplastic foamed resin layer becomes 1×100 Pa•s ranges from 60° C. to 100° C. and a gradient R of a viscosity-temperature curve of the thermoplastic foamed resin layer defined by the following Equation (1) ranges from 0.02 to 0.10: R={Log(?t)?Log(?t+20)}/20??(1) where ?t indicates 1×104 Pa•s and ?t+20 indicates the viscosity (Pa•s) of the thermoplastic foamed resin layer at the temperature higher by 20° C. than the temperature showing the viscosity ?t.Type: ApplicationFiled: January 26, 2005Publication date: December 22, 2005Applicant: FUJI XEROX CO., LTD.Inventors: Eizo Kurihara, Ryosuke Nakanishi, Tsukasa Matsuda, Tomofumi Tokiyoshi, Fumihiko Shimizu
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Publication number: 20050230861Abstract: An injection-foaming molding process for manufacturing a formed article by injecting a molten resin containing a foaming agent into a cavity of a mold being retained in an openable state and then expanding the cavity by opening the mold to allow the resin to foam includes: i) a step of discontinuing a cavity of a mold from a resin-reserving section located at front end of a screw immediately after the completion of injection of a molten resin containing an expandable resin into the mold cavity; and ii) a step of keeping the resin-reserving section under pressure at least equal to back pressure for charging during a period from the completion of injection to start of charging the molten resin containing the expandable resin for next shot, decreasing pressure in the resin-reserving section to back pressure for charging, and then starting the charging. According to the process, a molding cycle can be shortened and a lightweight formed article by foaming having high rigidity and good appearance can be obtained.Type: ApplicationFiled: February 28, 2003Publication date: October 20, 2005Applicant: UBE MACHINERY CORPORATION, LTD.Inventors: Hiroyuki Takatori, Akio Okamoto, Naoto Yamamoto, Fumihiko Shimizu
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Publication number: 20050153227Abstract: The present invention provides an image forming method including forming an image on a transfer paper for electrophotography by using oilless fixing, in which the transfer paper for electrophotography comprises a thermoplastic foam resin layer on at least one side of a substrate, the thermoplastic foam resin layer containing a thermoplastic resin having a softening point of 50° C. to 120° C. as determined according to JIS K 7234 (Ring and Ball method), and the thermoplastic foam resin layer having an average void size of 0.5 ?m to 50 ?m on the surface thereof. A difference between a gloss before the fixing and a gloss after the fixing, on a non-image portion, is 10% to 100%.Type: ApplicationFiled: December 28, 2004Publication date: July 14, 2005Applicant: FUJI XEROX CO., LTD.Inventors: Eizo Kurihara, Ryosuke Nakanishi, Tsukasa Matsuda, Tomofumi Tokiyoshi, Fumihiko Shimizu
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Publication number: 20050131160Abstract: Soft propylene-based resin compositions, which comprise substantially the following block (I) and block (II): Block (I): propylene-based polymer having propylene unit chain segments that bond in a mode of head-to-tail bonding, in which the chain segment has an isotactic block-containing stereoblock structure; Block (II): copolymer containing at least propylene and ethylene, exhibit good flexibility, transparency, and heat resistance.Type: ApplicationFiled: July 29, 2004Publication date: June 16, 2005Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Fumihiko Shimizu, Kenjirou Takayanagi, Naomasa Sato, Fumiyoshi Yamada, Shixuan Xin
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Publication number: 20050124753Abstract: A polypropylene type aqueous dispersion comprising the following components (a) to (c): (a) a polypropylene type polymer 100 parts by weight and/or a modified polypropylene type polymer (b) a surfactant 1 to 100 parts by weight, and (c) water 100 to 1,000 parts by weight, wherein the component (a) has a main chain having the following features (1) and (2) and dispersion particles in the dispersion have an average particle size of at most 0.5 ?m, Feature (1) when observing a peak derived from a carbon atom of a methyl group in a propylene unit chain part comprising a head-to-tail bond by 13C-NMR and fixing a chemical shift of a peak top at a peak attributable to pentad expressed by mmmm to 21.8 ppm, a ratio (S1/S) of an area S1 of a peak of a peak top at 21.8 ppm to a total area S of peaks at from 19.8 ppm to 22.1 ppm is at least 10% and at most 60%, and when an area of a peak (mmmr) of a peak top at 21.5 to 21.Type: ApplicationFiled: October 26, 2004Publication date: June 9, 2005Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Teruaki Ashihara, Masato Onoe, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Yukihito Zanka, Kouichi Nakayama
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Patent number: 6887943Abstract: This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25° C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.Type: GrantFiled: October 31, 2002Date of Patent: May 3, 2005Assignee: Mitsubishi Chemical CorporationInventors: Masato Onoe, Teruaki Ashihara, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Akio Tanna
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Publication number: 20050075441Abstract: This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25° C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.Type: ApplicationFiled: November 12, 2004Publication date: April 7, 2005Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Masato Onoe, Teruaki Ashihara, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Akio Tanna
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Patent number: 6846395Abstract: The present invention relates to an edge insulation member for an electrode plate used for electrolytic refinement of metal, and to a fixing method for it. On a tip portion 22A of a main body 22, a fitting groove 23 and a jaw portion 24 for tightly fitting an electrode plate 1 are formed to extend along the lengthwise direction of the main body 22. On a base end portion of the main body 22, an engagement notch 25 for fitting a support rod 26 is formed to extend along the lengthwise direction of the main body 22. A plurality of pin insertion holes 27 are formed on the side surface of the jaw portion 24. Fitting jigs made up from a pin 30 and a stopper 40 is removably fitted in this pin insertion hole 27. The support rod 26 is removably fitted in the engagement notch 25.Type: GrantFiled: June 12, 2001Date of Patent: January 25, 2005Assignee: Mitsubishi Materials CorporationInventors: Hiroshi Tanaka, Fumihiko Shimizu
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Publication number: 20040162403Abstract: An object of the present invention is to provide a novel propylene-based polymer capable of providing a propylene-based polymer with a good adhesion and coatability.Type: ApplicationFiled: August 29, 2003Publication date: August 19, 2004Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Fumihiko Shimizu, Naomasa Sato, Akira Kuwahara, Fumiyoshi Yamada, Akio Tanna
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Publication number: 20040020765Abstract: The present invention relates to an edge insulation member for an electrode plate used for electrolytic refinement of metal, and to a fixing method for it. On a tip portion 22A of a main body 22, a fitting groove 23 and a jaw portion 24 for tightly fitting an electrode plate 1 are formed to extend along the lengthwise direction of the main body 22. On a base end portion of the main body 22, an engagement notch 25 for fitting a support rod 26 is formed to extend along the lengthwise direction of the main body 22. A plurality of pin insertion holes 27 are formed on the side surface of the jaw portion 24. Fitting jigs made up from a pin 30 and a stopper 40 is removably fitted in this pin insertion hole 27. The support rod 26 is removably fitted in the engagement notch 25.Type: ApplicationFiled: May 27, 2003Publication date: February 5, 2004Inventors: Hiroshi Tanaka, Fumihiko Shimizu
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Publication number: 20040024149Abstract: Methods and compositions for the generation of quasi-living catalysts for homo-polymerization of olefins such as ethylene, &agr;-olefins and functionalized olefins and for the co-polymerization of olefins with functionalized monomers is disclosed. A process for producing these homo- and co-polymers is also disclosed. A polymeric material with enhanced hydrophilic properties, generated by the co-polymerization of ethylene with 5-norbornen-2-yl acetate, is also disclosed.Type: ApplicationFiled: March 3, 2003Publication date: February 5, 2004Inventors: Guillermo C. Bazan, Prasenjit Ghosh, Fumihiko Shimizu
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Publication number: 20030153686Abstract: This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25° C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.Type: ApplicationFiled: October 31, 2002Publication date: August 14, 2003Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Masato Onoe, Teruaki Ashihara, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Akio Tanna
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Patent number: 6191232Abstract: The present invention provides a propylene block copolymer comprising polymer particles whose rubber-like component contents are 50% by weight or more, in an amount less than 1.0% by weight of the whole polymer particles finally discharged from a polymerization system.Type: GrantFiled: October 2, 1998Date of Patent: February 20, 2001Assignee: Mitsubishi Chemical CorporationInventors: Kenji Mitsutani, Kiyoshi Yukawa, Fumihiko Shimizu, Glen H. Ko, Eiji Tanaka, Fuminao Watanabe
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Patent number: 5859143Abstract: A process for continuously producing a propylene-based block copolymer having an excellent impact resistance of the present invention, comprises:a first polymerization step comprising polymerizing .alpha.-olefin comprising propylene in the presence of hydrogen and a stereoregular polymerization catalyst comprising a solid catalyst component containing magnesium, titanium, halogen atom and an electron-donor compound, an organoaluminum compound and, if required, an electron-donar compound in a single polymerization reactor; anda second polymerization step comprising transporting .alpha.-olefin polymer obtained in the first polymerization step to a copolymerization reactor and copolymerizing propylene with .alpha.-olefin other than propylene in a gas phase substantially in the presence of said stereoregular polymerization catalyst used in the first polymerization step.Type: GrantFiled: April 16, 1997Date of Patent: January 12, 1999Assignee: Mitsubishi Chemical CorporationInventors: Eiji Tanaka, Fumihiko Shimizu
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Patent number: 5308811Abstract: A catalyst for polymerizing an olefin which consists essentially of a product obtained by contacting (A) a metallocene-type transition metal compound, (B) at least one member selected from the group consisting of clay, clay minerals, ion exchanging layered compounds, diatomaceous earth, silicates and zeolites, and (C) an organic aluminum compound.Type: GrantFiled: May 1, 1992Date of Patent: May 3, 1994Assignee: Mitsubishi Kasei CorporationInventors: Yoshinori Suga, Yasuo Maruyama, Eiji Isobe, Toru Suzuki, Fumihiko Shimizu