Patents by Inventor Tsuyoshi Izumi
Tsuyoshi Izumi 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: 20240284591Abstract: A circuit module includes: a substrate including a first main surface and a second main surface; a resin layer on the first main surface of the substrate; an electronic component; a penetrating portion penetrating the resin layer in a thickness direction; a first conductor that is a pillar conductor present in the penetrating portion, the first conductor including a first bottom closer to the substrate and a second bottom inward of an outer surface of the resin layer; a second conductor that is a metal film covering at least a portion of a side surface of the first conductor, the second conductor including a portion extending continuously from the side surface of the first conductor to the same plane with the outer surface of the resin layer.Type: ApplicationFiled: April 30, 2024Publication date: August 22, 2024Inventors: Tsuyoshi TAKAKURA, Masaaki MIZUSHIRO, Satoshi IZUMI, Ryuichiro WADA, Hiroki YOSHIMORI, Yoshihito OTSUBO, Tadashi NOMURA
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Publication number: 20240258578Abstract: A power storage cell includes a cell case, a wound electrode assembly, and an electrolyte solution. The cell case houses the wound electrode assembly and the electrolyte solution. The wound electrode assembly includes a positive electrode sheet, a separator sheet, and a negative electrode sheet. In a winding axis direction, the wound electrode assembly has a first end portion and a second end portion. The first end portion faces a top wall. The second end portion is located opposite to the first end portion. At both the first end portion and the second end portion, the separator sheet extends outward with respect to the negative electrode sheet. At the first end portion, the separator sheet has a first protruding length. At the second end portion, the separator sheet has a second protruding length. The first protruding length is longer than the second protruding length.Type: ApplicationFiled: January 23, 2024Publication date: August 1, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeru HARA, Seigo Fujishima, Atsushi Sugihara, Jun Izumi, Tsuyoshi Kaneko
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Publication number: 20240258663Abstract: A power storage cell includes a cell case and an electrode assembly. The cell case houses the electrode assembly. The cell case includes a top wall, a peripheral wall, and a bottom wall. The top wall faces the bottom wall. The peripheral wall connects the top wall and the bottom wall. The top wall is provided with an electrode terminal. A current path that electrically connects the electrode terminal and the electrode assembly is formed in the cell case. The current path includes a fuse portion. The power storage cell further includes at least one of a thermal expansion member and a thermal contraction member. The thermal expansion member is disposed between the top wall and the electrode assembly. The thermal contraction member is disposed between the electrode assembly and at least one of the peripheral wall and the bottom wall. The thermal contraction member supports the electrode assembly.Type: ApplicationFiled: January 23, 2024Publication date: August 1, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi SUGIHARA, Seigo FUJISHIMA, Takeru HARA, Jun IZUMI, Tsuyoshi KANEKO
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Publication number: 20210002441Abstract: Provided are resin particles which have excellent thermal bondability, excellent low-temperature fixability, excellent heat resistant storage stability and high bonding strength, and which provide a coating film that has high gloss and excellent water resistance. The resin particles are composed of resin particles (X), each of which has a shell layer (S) containing a crystalline polyurethane resin (B) on the surface of a core layer (Q) containing a crystalline resin (A). The maximum peak temperature (Ta) of the heat of fusion of the crystalline resin (A) is 40 to 70° C. and the maximum peak temperature (Tu) of the heat of fusion of the crystalline polyurethane resin (B) is 50 to 90° C.Type: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Applicant: Sanyo Chemical Industries, Ltd.Inventors: Masashi Minaki, Tsuyoshi Izumi, Yasuaki Ota
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Patent number: 10459359Abstract: An object of the present invention is to provide a toner binder and a toner that maintains offset resistance while having high gloss and that is excellent in low-temperature fixability, grindability, image strength, and heat-resistant storage stability. The toner binder of the present invention is a toner binder containing a non-linear polyester modified resin (A), wherein the non-linear polyester modified resin (A) is a modified resin having one or more carbon-carbon bonds crosslinking polyesters, and the toner binder has a loss tangent tan ? of 2 to 20 in the entire temperature range of 110° C. to 130° C.Type: GrantFiled: November 25, 2016Date of Patent: October 29, 2019Assignee: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Tsuyoshi Izumi, Masaru Honda
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Publication number: 20190250529Abstract: An object of the present invention is to provide a toner binder and a toner that maintains offset resistance while having high gloss and that is excellent in low-temperature fixability, grindability, image strength, and heat-resistant storage stability. The toner binder of the present invention is a toner binder containing a non-linear polyester modified resin (A), wherein the non-linear polyester modified resin (A) is a modified resin having one or more carbon-carbon bonds crosslinking polyesters, and the toner binder has a loss tangent tan ? of 2 to 20 in the entire temperature range of 110° C. to 130° C.Type: ApplicationFiled: November 25, 2016Publication date: August 15, 2019Applicant: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Tsuyoshi IZUMI, Masaru HONDA
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Patent number: 10216110Abstract: Provided is a toner binder which attains all of low-temperature fixing properties, gloss, and hot offset resistance and gives a toner that satisfies the flowability, high-temperature storability, charge stability, pulverizability, image strength, flex cracking resistance, and document anti-offset properties. The present invention is a toner binder which comprises a polyester resins and has a surfactant content of 100 ppm or less and in which the THF-insoluble components and the THF-soluble components respectively have a storage modulus (Pa) at 150° C., G?x150, and the storage modulus (Pa) at 150° C., G?y150, which satisfy the following relationships (1) and (2).Type: GrantFiled: February 22, 2016Date of Patent: February 26, 2019Assignee: Sanyo Chemical Industries, Ltd.Inventors: Masaru Honda, Tsuyoshi Izumi, Hiroshi Odajima, Masashi Minaki
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Publication number: 20180039193Abstract: Provided is a toner binder which attains all of low-temperature fixing properties, gloss, and hot offset resistance and gives a toner that satisfies the flowability, high-temperature storability, charge stability, pulverizability, image strength, flex cracking resistance, and document anti-offset properties. The present invention is a toner binder which comprises a polyester resins and has a surfactant content of 100 ppm or less and in which the THF-insoluble components and the THF-soluble components respectively have a storage modulus (Pa) at 150° C., G?x150, and the storage modulus (Pa) at 150° C., G?y150, which satisfy the following relationships (1) and (2).Type: ApplicationFiled: February 22, 2016Publication date: February 8, 2018Applicant: Sanyo Chemical Industries, Ltd.Inventors: Masaru Honda, Tsuyoshi Izumi, Hiroshi Odajima, Masashi Minaki
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Patent number: 9280074Abstract: Provided is a toner binder that is excellent in heat resistant storage properties and hot offset resistance properties and also affords excellent anti-blocking properties of paper when printing continuously. The present invention is directed to a toner binder comprising a crystalline resin (A), wherein the crystalline resin (A) comprises two or more crystalline resins (a) and the endothermic peak temperature group that is composed of all of the endothermic peak temperatures of the respective two or more crystalline resins (a) has two or more different endothermic peak temperatures; and a resin particle containing the toner binder.Type: GrantFiled: March 14, 2014Date of Patent: March 8, 2016Assignee: Sanyo Chemical Industries, Ltd.Inventors: Masashi Minaki, Tsuyoshi Izumi, Taiji Yamashita
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Publication number: 20150274914Abstract: Provided are resin particles which have excellent thermal bondability, excellent low-temperature fixability, excellent heat resistant storage stability and high bonding strength, and which provide a coating film that has high gloss and excellent water resistance. The resin particles are composed of resin particles (X), each of which has a shell layer (S) containing a crystalline polyurethane resin (B) on the surface of a core layer (Q) containing a crystalline resin (A). The maximum peak temperature (Ta) of the heat of fusion of the crystalline resin (A) is 40 to 70° C. and the maximum peak temperature (Tu) of the heat of fusion of the crystalline polyurethane resin (B) is 50 to 90° C.Type: ApplicationFiled: September 17, 2013Publication date: October 1, 2015Inventors: Masashi Minaki, Tsuyoshi Izumi, Yasuaki Ota
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Patent number: 8920927Abstract: Resin particles which are excellent in electrostatic property, thermal storage stability and thermal properties, and have evenness of particle diameter are to be provided. The resin particles are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). Core-shell type resin particles (C2) each comprising a film-like shell layer (P) in one or more layer structure comprising a first resin (a) and a core layer (Q) in one layer structure comprising a second resin (b), wherein the weight ratio of (P) and (Q) is in a range of (0.1:99.9) to (70:30), the content of volatile components of (C2) is 2% by weight or lower, and (a) has an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C.Type: GrantFiled: July 14, 2011Date of Patent: December 30, 2014Assignee: Sanyo Chemical Industries, LtdInventors: Takao Mukai, Tsuyoshi Izumi, Natsuki Nakamichi
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Patent number: 8852741Abstract: Resin particles which are excellent in electrostatic property, thermal storage stability and thermal properties, and have evenness of particle diameter are to be provided. The resin particles are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). Core-shell type resin particles (C2) each comprising a film-like shell layer (P) in one or more layer structure comprising a first resin (a) and a core layer (Q) in one layer structure comprising a second resin (b), wherein the weight ratio of (P) and (Q) is in a range of (0.1:99.9) to (70:30), the content of volatile components of (C2) is 2% by weight or lower, and (a) has an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C.Type: GrantFiled: April 5, 2006Date of Patent: October 7, 2014Assignee: Sanyo Chemical Industries, Ltd.Inventors: Takao Mukai, Tsuyoshi Izumi, Natsuki Nakamichi
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Publication number: 20140272699Abstract: Provided is a toner binder that is excellent in heat resistant storage properties and hot offset resistance properties and also affords excellent anti-blocking properties of paper when printing continuously. The present invention is directed to a toner binder comprising a crystalline resin (A), wherein the crystalline resin (A) comprises two or more crystalline resins (a) and the endothermic peak temperature group that is composed of all of the endothermic peak temperatures of the respective two or more crystalline resins (a) has two or more different endothermic peak temperatures; and a resin particle containing the toner binder.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Masashi Minaki, Tsuyoshi Izumi, Taiji Yamashita
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Patent number: 8722298Abstract: To provide resin particles which are excellent in electrostatic properties, thermal resistance storage stability, and thermal properties and have uniform particle diameter. The invention is the resin particles (D) having a structure formed by depositing resin particles (A) comprising a first resin (a) having an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C. or a film (P) comprising the resin (a) on the surfaces of resin particles (B) comprising a second resin (b), wherein the surface coverage of the resin particles (B) with the resin particles (A) or the film (P) is 0.1 to 4.9%.Type: GrantFiled: August 2, 2006Date of Patent: May 13, 2014Assignee: Sanyo Chemical Industries, Ltd.Inventors: Takao Mukai, Tsuyoshi Izumi
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Patent number: 8628852Abstract: Disclosed are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a resin (a) which is a polyurethane resin and a core layer (Q) comprising a resin (b). A core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the content of vinyl resins in the resin (b) is not more than 30 weight %. Such resin particles have a uniform particle diameter and are excellent in electrostatic properties, thermal and storage stability and thermal characteristics.Type: GrantFiled: July 27, 2006Date of Patent: January 14, 2014Assignee: Sanyo Chemical Industries Ltd.Inventors: Takashi Akutagawa, Tsuyoshi Izumi
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Publication number: 20110269874Abstract: Resin particles which are excellent in electrostatic property, thermal storage stability and thermal properties, and have evenness of particle diameter are to be provided. The resin particles are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). Core-shell type resin particles (C2) each comprising a film-like shell layer (P) in one or more layer structure comprising a first resin (a) and a core layer (Q) in one layer structure comprising a second resin (b), wherein the weight ratio of (P) and (Q) is in a range of (0.1:99.9) to (70:30), the content of volatile components of (C2) is 2% by weight or lower, and (a) has an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C.Type: ApplicationFiled: July 14, 2011Publication date: November 3, 2011Applicant: Sanyo Chemical Industries, Ltd.Inventors: Takao Mukai, Tsuyoshi Izumi, Natsuki Nakamichi
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Patent number: 7862896Abstract: The present invention relates to core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). The core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the resin (a) has an initial softening temperature of 40 to 270° C., a Tg of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the Tg and the flow temperature in a range of 0 to 120° C. The resin particles are excellent in electrostatic property, thermal storage stability and thermal properties, and exhibit a narrow particle diameter distribution.Type: GrantFiled: July 27, 2006Date of Patent: January 4, 2011Assignee: Sanyo Chemical Industries, Ltd.Inventors: Takashi Akutagawa, Tsuyoshi Izumi
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Publication number: 20100221655Abstract: To provide resin particles which are excellent in electrostatic properties, thermal resistance storage stability, and thermal properties and have uniform particle diameter. The invention is the resin particles (D) having a structure formed by depositing resin particles (A) comprising a first resin (a) having an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C. or a film (P) comprising the resin (a) on the surfaces of resin particles (B) comprising a second resin (b), wherein the surface coverage of the resin particles (B) with the resin particles (A) or the film (P) is 0.1 to 4.9%.Type: ApplicationFiled: August 2, 2006Publication date: September 2, 2010Inventors: Takao Mukai, Tsuyoshi Izumi
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Publication number: 20090253827Abstract: Resin particles which are excellent in electrostatic property, thermal storage stability and thermal properties, and have evenness of particle diameter are to be provided. The resin particles are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). Core-shell type resin particles (C2) each comprising a film-like shell layer (P) in one or more layer structure comprising a first resin (a) and a core layer (Q) in one layer structure comprising a second resin (b), wherein the weight ratio of (P) and (Q) is in a range of (0.1:99.9) to (70:30), the content of volatile components of (C2) is 2% by weight or lower, and (a) has an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C.Type: ApplicationFiled: April 5, 2006Publication date: October 8, 2009Applicant: Sanyo Chemical Industries, Ltd.Inventors: Takao Mukai, Tsuyoshi Izumi, Natsuki Nakamichi
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Publication number: 20070281235Abstract: [PROBLEMS] Disclosed is a heat-fusible electrostatic image developing toner which has an excellent balance between fixability at low temperatures and grindability and is excellent in glossiness after fixing. Also disclosed is a resin for toners. [MEANS FOR SOLVING PROBLEMS] A polyester resin for toners which is obtained by polycondensing a polyol component and a polycarboxylic acid component is characterized by containing 20-100 weight % of one or more polyester resins (A1) having a storage elastic modulus from 2.5×103 Pa to 5×106 Pa at 150° C. wherein the molar average cohesive energy of the polyol component is between 7.0×104 and 1.4×105 J.Type: ApplicationFiled: December 10, 2004Publication date: December 6, 2007Inventors: Yasuhiro Ono, Masakazu Iwata, Takashi Akutagawa, Tsuyoshi Izumi, Tadao Takikawa, Shuhei Yahiro