Patents by Inventor Hiroshi Shibano
Hiroshi Shibano 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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Patent number: 11952497Abstract: An object of the present invention is to provide a phycocyanin pigment composition insoluble in water and provide food, cosmetics, a coating material or a printing marker for pharmaceuticals or agricultural chemicals, a stationery product, a writing tool, a printing ink, an inkjet ink, a metal ink, a paint, a plastic coloring agent, a color toner, a fluorescent labeling agent, a fluorescent probe, or a chemical sensor, each containing the pigment composition. It was found that the phycocyanin pigment composition containing phycocyanin and a metal or a metal compound was insoluble in water, and thus the present invention was accomplished.Type: GrantFiled: March 18, 2021Date of Patent: April 9, 2024Assignee: DIC CORPORATIONInventors: Seiji Funakura, Takashi Shibano, Hiroshi Sekikawa
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Publication number: 20220187503Abstract: An excellent anti-reflection circular polarizer for preventing the reflection of external light is provided, and thereby an excellent image display device with very little degradation of anti-reflection functionality caused by decreased levels of polarization under conditions of high humidity while having little deformation of an image display panel is provided. In particular, an anti-reflection circular polarizer suitable for an organic EL image display device is provided. The anti-reflection circular polarizer includes a reflection reduction layer, a light-transmissive substrate film, a polarizing element, and a ?/4 phase-difference layer, stacked in this order, wherein the light-transmissive substrate film has a moisture permeability of 100 g/m2·day or less.Type: ApplicationFiled: March 19, 2020Publication date: June 16, 2022Applicant: TOYOBO CO., LTD.Inventors: Toshitake SUZUKI, Toshiki lNOUE, Hiroshi SHIBANO
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Patent number: 9714349Abstract: Provided is a hydrolysis-resistant polyester film having a low acid value due to suppression of acid value-increase during film formation. The hydrolysis-resistant polyester film of the present invention is a polyester film comprising a polyester resin composition, wherein the polyester resin composition that forms the films comprises 0.03 to 6.7 eq/ton of hindered phenol structural units, an acid value of a polyester that forms the film is less than 25 eq/ton, and an intrinsic viscosity of a polyester that forms the film is more than 0.64 dL/g and not less than 0.90 dL/g.Type: GrantFiled: August 17, 2011Date of Patent: July 25, 2017Assignee: Toyobo Co., Ltd.Inventors: Keiichiro Togawa, Hideto Ohashi, Toshifumi Unrinin, Hiroshi Shibano
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Patent number: 9200110Abstract: The present invention is directed to a heat-resistant polyester blow-molded article made of a polyester resin composition containing 0.035 to 1.75 equivalent/ton of a hindered phenol structural unit and containing at least one selected from the group consisting of antimony compounds as a polymerization catalyst, the cyclic trimer content thereof being less than or equal to 0.5% by mass, the acetaldehyde content thereof being less than or equal to 50 ppm and the intrinsic viscosity thereof being 0.68 to 0.90 dL/g. The present invention enables efficient production of a molded article excellent in transparency and heat-resistant dimensional stability, in particular a heat-resistant blow-molded article. Moreover, according to the present invention, there are provided a polyester resin composition which is excellent in long-term continuous moldability and hardly stains a mold and a molded article prepared therewith, and a method for molding a polyester blow-molded article using the polyester resin composition.Type: GrantFiled: April 5, 2013Date of Patent: December 1, 2015Assignee: TOYOBO CO., LTD.Inventors: Keiichiro Togawa, Hiroshi Shibano
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Publication number: 20150080544Abstract: The present invention is directed to a heat-resistant polyester blow-molded article made of a polyester resin composition containing 0.035 to 1.75 equivalent/ton of a hindered phenol structural unit and containing at least one selected from the group consisting of antimony compounds as a polymerization catalyst, the cyclic trimer content thereof being less than or equal to 0.5% by mass, the acetaldehyde content thereof being less than or equal to 50 ppm and the intrinsic viscosity thereof being 0.68 to 0.90 dL/g. The present invention enables efficient production of a molded article excellent in transparency and heat-resistant dimensional stability, in particular a heat-resistant blow-molded article. Moreover, according to the present invention, there are provided a polyester resin composition which is excellent in long-term continuous moldability and hardly stains a mold and a molded article prepared therewith, and a method for molding a polyester blow-molded article using the polyester resin composition.Type: ApplicationFiled: April 5, 2013Publication date: March 19, 2015Inventors: Keiichiro Togawa, Hiroshi Shibano
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Publication number: 20130139883Abstract: Provided is a hydrolysis-resistant polyester film having a low acid value due to suppression of acid value-increase during film formation. The hydrolysis-resistant polyester film of the present invention is a polyester film comprising a polyester resin composition, wherein the polyester resin composition that forms the films comprises 0.03 to 6.7 eq/ton of hindered phenol structural units, an acid value of a polyester that forms the film is less than 25 eq/ton, and an intrinsic viscosity of a polyester that forms the film is more than 0.64 dL/g and not less than 0.90 dL/g.Type: ApplicationFiled: August 17, 2011Publication date: June 6, 2013Applicant: TOYOBO CO., LTD.Inventors: Keiichiro Togawa, Hideto Ohashi, Toshifumi Unrinin, Hiroshi Shibano
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Production method of polyethylene terephthalate graft copolymerized resin and molded product thereof
Patent number: 8258239Abstract: The present invention provides a method of producing a polyethylene terephthalate graft copolymerized resin, comprising subjecting the following mixture to a homogeneous reaction at a temperature of 250° C. or higher to impart a high melt viscosity to the mixture, the mixture containing (A) 100 parts by weight of a polyethylene terephthalate polyester as a main material, (B) 0.01 to 2 parts by weight of a polymeric polyfunctional epoxy compound containing 7 to 100 epoxy groups in a molecule and having a molecular weight of 1,000 to 300,000 as a coupling agent, (C) 0.01 to 1 part by weight of a metal salt of an organic acid as a coupling reaction catalyst, and (D) 0 to 100 parts by weight of an aromatic alicyclic polyester and/or an aromatic aliphatic polyester each having a carboxyl group in an aromatic nucleus as an auxiliary material.Type: GrantFiled: December 28, 2007Date of Patent: September 4, 2012Assignee: Ftex, IncorporatedInventors: Takashi Fujimaki, Yoshitomo Urata, Hiroshi Shibano -
Patent number: 8163217Abstract: This invention relates to a method of making a heat-resistant transparent container which involves the steps of: a primary stretching and heat-setting process wherein an amorphous polyethylene terephthalate sheet is heated, primarily stretched and then primarily heat-set and a secondary stretching and heat-setting process wherein the sheet treated in the primary stretching and heat-setting process is molded with heating in a mold of a thermoforming machine while secondary stretching is performed, followed by secondary heat-setting in the same mold.Type: GrantFiled: June 12, 2007Date of Patent: April 24, 2012Assignee: Nakamoto Packs Co., Ltd.Inventors: Shigeru Takaoka, Hiroshi Shibano, Jun Kawata
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Patent number: 7922007Abstract: The present invention relates to a permselective separation membrane that can be used in blood purifying treatment. More particularly, the present invention relates to a polysulfone-based permselective separation membrane which has well-balanced separation properties, highly stable safety and performance, and also can be smoothly assembled into a module, and a method for producing the same.Type: GrantFiled: March 18, 2005Date of Patent: April 12, 2011Assignee: Toyo Boseki Kabushiki KaishaInventors: Kimihiro Mabuchi, Hideyuki Yokota, Katsuaki Kuze, Noriyuki Tamamura, Makoto Ono, Noriko Monden, Noriaki Kato, Hiroshi Shibano, Katsuhiko Nose
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PRODUCTION METHOD OF POLYETHYLENE TEREPHTHALATE GRAFT COPOLYMERIZED RESIN AND MOLDED PRODUCT THEREOF
Publication number: 20100201015Abstract: The present invention provides a method of producing a polyethylene terephthalate graft copolymerized resin, comprising subjecting the following mixture to a homogeneous reaction at a temperature of 250° C. or higher to impart a high melt viscosity to the mixture, the mixture containing (A) 100 parts by weight of a polyethylene terephthalate polyester as a main material, (B) 0.01 to 2 parts by weight of a polymeric polyfunctional epoxy compound containing 7 to 100 epoxy groups in a molecule and having a molecular weight of 1,000 to 300,000 as a coupling agent, (C) 0.01 to 1 part by weight of a metal salt of an organic acid as a coupling reaction catalyst, and (D) 0 to 100 parts by weight of an aromatic alicyclic polyester and/or an aromatic aliphatic polyester each having a carboxyl group in an aromatic nucleus as an auxiliary material.Type: ApplicationFiled: December 28, 2007Publication date: August 12, 2010Applicant: FTEX INCORPORATEDInventors: Takashi Fujimaki, Yoshitomo Urata, Hiroshi Shibano -
Patent number: 7638052Abstract: The present invention provides a polysulfone type hollow fiber membrane which is reliable in safety and stability of performance and is easily incorporated into a module, and thus can be suitably used in a highly water permeable blood purifier for use in a therapy of chronic renal failure. The present invention relates to a polysulfone type selectively permeable hollow fiber membrane comprising a polysulfone type resin and a hydrophilic polymer as main components, and characterized in that (A) the content of the hydrophilic polymer in the uppermost layer of a surface of the polysulfone type hollow fiber membrane on the blood-contacting side is at least 1.1 times larger than the content of the hydrophilic polymer in the proximate layer of the surface on the blood-contacting side, and (B) the content of the hydrophilic polymer in the uppermost layer of the other surface of the polysulfone type hollow fiber membrane, i.e., the reverse side of the surface on the blood-contacting side, is at least 1.Type: GrantFiled: June 2, 2004Date of Patent: December 29, 2009Assignee: Toyo Boseki Kabushiki KaishaInventors: Kimihiro Mabuchi, Noriyuki Tamamura, Hidehiko Sakurai, Noriaki Kato, Hiroshi Shibano, Katsuhiko Nose
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Patent number: 7442302Abstract: The present invention provides a highly water permeable hollow fiber membrane type blood purifier for medical use, which is excellent in safety and module-assembling ease and which has a high water permeability suitable for use in therapy of chronic renal failure. The present invention relates to a highly water-permeable hollow fiber type blood purifier comprising hydrophobic polymer hollow fiber membranes each of which contains a hydrophilic polymer, characterized in that the amount of the hydrophilic polymer eluted from the hollow fiber membrane is 10 ppm or less; in that the ratio of the hydrophilic polymer in the outer surface of the hollow fiber membrane is 25 to 50 mass %; in that the burst pressure of the hollow fiber membrane is 0.5 MPa or higher; and in that the coefficient of water permeability of the blood purifier is 150 ml/m2/hr./mmHg or higher.Type: GrantFiled: August 26, 2004Date of Patent: October 28, 2008Assignee: Toyo Boseki Kabushiki KaishaInventors: Kimihiro Mabuchi, Noriyuki Tamamura, Hidehiko Sakurai, Noriko Monden, Shinya Koyama, Hiroshi Shibano, Katsuaki Kuze, Katsuhiko Nose
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Publication number: 20080042318Abstract: This invention relates to a method of making a heat-resistant transparent container which comprises: a primary stretching and heat-setting process wherein an amorphous polyethylene terephthalate sheet is heated, primarily stretched and then primarily heat-set, and a secondary stretching and heat-setting process wherein the sheet treated in the primary stretching and heat-setting process is molded with heating in a mold of a thermoforming machine while secondary stretching is performed followed by secondary heat-setting in the same mold.Type: ApplicationFiled: June 12, 2007Publication date: February 21, 2008Inventors: Shigeru Takaoka, Hiroshi Shibano, Jun Kawata
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Publication number: 20070199891Abstract: The present invention relates to a permselective separation membrane that can be used in blood purifying treatment. More particularly, the present invention relates to a polysulfone-based permselective separation membrane which has well-balanced separation properties, highly stable safety and performance, and also can be smoothly assembled into a module, and a method for producing the same.Type: ApplicationFiled: March 18, 2005Publication date: August 30, 2007Inventors: Kimihiro Mabuchi, Hideyuki Yokota, Katsuaki Kuze, Noriyuki Tamamura, Makoto Ono, Noriko Monden, Noriaki Kato, Hiroshi Shibano, Katsuhiko Nose
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Publication number: 20070187320Abstract: The present invention relates to a polysulfone permselective hollow fiber membrane bundle which has high safety and high reliability in performance and which is particularly suitable for use in a blood purifier or the like, a process for manufacturing the same, and a blood purifier comprising the same.Type: ApplicationFiled: March 22, 2005Publication date: August 16, 2007Inventors: Kimihiro Mabuchi, Hideyuki Yokota, Katsuaki Kuze, Noriyuki Tamamura, Makoto Ono, Noriko Monden, Noriaki Kato, Hiroshi Shibano, Katsuhiko Nose
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Publication number: 20070114167Abstract: The present invention provides polysulfone-based hollow fiber membranes having high water permeable performance and for use in therapy of chronic renal failures, said hollow fiber membranes having high safety and high stability in performance and being excellent in module-fabricating workability. The present invention also provides a process for manufacturing the same. The present invention relates to a bundle of a plurality of selectively permeable polysulfone-based hollow fiber membranes wherein the amount of a hydrophilic polymer eluting from each hollow fiber membrane is not larger than 10 ppm, and wherein the content of the hydrophilic polymer in the outer surface of the hollow fiber membrane is 25 to 50 mass %, and this bundle is characterized in that any of extracted solutions from ten fractions of said bundle, obtained by dividing the bundle at substantially regular intervals along the lengthwise direction, shows a maximum value of smaller than 0.Type: ApplicationFiled: December 8, 2004Publication date: May 24, 2007Inventors: Kimihiro Mabuchi, Noriyuki Tamamura, Hidehiko Sakurai, Noriaki Kato, Hiroshi Shibano, Katsuhiko Nose
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Publication number: 20070052131Abstract: A PET-based polyester packaging film capable of weld-cut sealing and heat-shrinkage refers to a film obtained by biaxially orienting a material prepared through block copolymerization of a PET/PETG/polyester elastomer with an epoxy resin and a catalyst. This film eliminates the most serious weak points in physical properties of conventional PET films, and is useful for packaging of books, bottlesets, food containers, etc., for general packaging, packaging of industrial materials, and the like, and is further useful in the field of packing and packaging of daily commodities, civil engineering and construction members, electric and electronic members, and automobile vehicle members, etc. Moreover, this film can be produced through effective use of the huge amount of recycled PET bottles and inexpensive PET for fiber as a prepolymer, and thus is also highly beneficial socially.Type: ApplicationFiled: September 21, 2004Publication date: March 8, 2007Applicant: NAKAMOTO PACKS CO., LTD.Inventors: Takashi Fujimaki, Yukio Kobayashi, Takashi Nakamoto, Hiroshi Shibano
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Publication number: 20060191844Abstract: The present invention provides a highly water permeable hollow fiber membrane type blood purifier for medical use, which is excellent in safety and module-assembling ease and which has a high water permeability suitable for use in therapy of chronic renal failure. The present invention relates to a highly water-permeable hollow fiber type blood purifier comprising hydrophobic polymer hollow fiber membranes each of which contains a hydrophilic polymer, characterized in that the amount of the hydrophilic polymer eluted from the hollow fiber membrane is 10 ppm or less; in that the ratio of the hydrophilic polymer in the outer surface of the hollow fiber membrane is 25 to 50 mass %; in that the burst pressure of the hollow fiber membrane is 0.5 MPa or higher; and in that the coefficient of water permeability of the blood purifier is 150 ml/m2/hr./mmHg or higher.Type: ApplicationFiled: August 26, 2004Publication date: August 31, 2006Inventors: Kimihiro Mahuchi, Noriyuki Tamamura, Hidehiko Sakurai, Noriko Monden, Shinya Koyama, Hiroshi Shibano, Katsuaki Kuze, Katsuhiko Nose
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Patent number: 6663929Abstract: A label having a thermoplastic polymer film and an ink layer formed on at least one surface thereof, the ink layer being removable in alkaline hot water, can easily be recycled after separated or without being separated from the bottle into polymer pellets with improved purity. The recycled polymer pellets are extremely suitable for the effective use of resources because they contain substantially no ink and can therefore find various applications.Type: GrantFiled: December 18, 1998Date of Patent: December 16, 2003Assignee: Toyo Boseki Kabushiki KaishaInventors: Norimi Tabota, Tsutomu Oko, Teruo Kurosawa, Kuniharu Mori, Katsuhiko Nose, Hiroshi Shibano
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Patent number: 6247856Abstract: There is disclosed a system for developing photosensitive resin plates with an aqueous developing solution and for disposing of a waste developing solution. In the system, a fresh developing solution is added to a developing unit in a continuous manner or at intervals of a fixed period, while a part of the resin-containing developing solution is removed from the developing unit, whereby the resin content of the developing solution in the developing unit is kept substantially constant and the disposal of the waste developing solution is carried out in parallel with the development. Also disclosed herein are apparatus used in the developing system.Type: GrantFiled: January 20, 1999Date of Patent: June 19, 2001Assignee: Toyo Boseki Kabushiki KaishaInventors: Hiroshi Shibano, Yoshihiro Kasho, Kazuo Takahashi