Patents by Inventor Junji Tan
Junji Tan 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: 11943964Abstract: A light-emitting device includes a light-transmitting substrate, a light-transmitting interconnect located over the substrate, an insulating layer located over the substrate and the interconnect, and an intermediate layer formed in at least a region of a lateral side of the interconnect that overlaps the insulating layer.Type: GrantFiled: December 16, 2022Date of Patent: March 26, 2024Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATIONInventors: Junji Taguchi, Hiroki Tan, Noriaki Waki, Masaki Takahashi
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Publication number: 20180030226Abstract: [Object] The invention provides fiber-reinforced composite materials having improved interlaminar fracture toughness and high heat resistance. [Solution] A prepreg includes a reinforcement fiber (A) and a resin composition (E), the resin composition (E) including 0.1 to 10 mass % of particles (D) including an ultrahigh molecular weight olefin polymer or a crosslinked product thereof and satisfying requirements (i) to (ii) below, the resin composition (E) further including a thermosetting resin (B) and a curing agent (C). (i) The intrinsic viscosity [?] of the ultrahigh molecular weight olefin polymer forming the particles, as measured in decalin solvent at 135° C., is 5 to 50 dl/g. (ii) The average particle size d50 is 3 to 200 ?m.Type: ApplicationFiled: February 17, 2016Publication date: February 1, 2018Applicant: MITSUI CHEMICALS, INC.Inventors: Toyoaki SASAKI, Kazutoshi FUJIHARA, Hironobu OKIMURA, Junji TAN
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Patent number: 8106132Abstract: There is provided by the present invention a polyester resin composition containing a copolyester having hydroxy carboxylic acid units as constituent units or a polyoxycarboxylic acid, wherein hydroxy carboxylic acid units of 5 or less carbon atoms are contained in amounts of 2 to 75% by mol based on 100% by mol of all the constituent units contained in the composition, and a molar ratio SAA of hydroxy carboxylic acid units both of whose neighboring units are hydroxy carboxylic acid units to all the hydroxy carboxylic acid units contained and a molar ratio SBB of hydroxy carboxylic acid units neither of whose neighboring units is a hydroxy carboxylic acid unit to all the hydroxy carboxylic acid units contained satisfy the following formula: 0.03<SAA/SBB<30.Type: GrantFiled: January 8, 2004Date of Patent: January 31, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Junji Tan, Yasuhiro Mutou, Seiji Ota
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Patent number: 7754813Abstract: A resin modifier (C) obtained by reacting a polyolefin (A) having a group which reacts with a carbodiimide group, and a carbodiimide group-containing compound (B), wherein the content of the carbodiimide group is from 1 to 200 mmol per 100 g of the resin modifier, and a polar group-containing polymer composition (F) comprising from 1 to 30% by weight of the resin modifier (C), from 99 to 20% by weight of a polar group-containing polymer (D), and from 0 to 80% by weight of an olefin polymer (E). The modifier can provide improved low-temperature impact resistance of a polymer alloy including a polar group-containing polymer and an olefin polymer (such as polylactic acid and polypropylene), and can provide a molded article with smooth surface when the polymer alloy is molded. A polar group-containing polymer composition is also set forth.Type: GrantFiled: March 10, 2005Date of Patent: July 13, 2010Assignee: Mitsui Chemicals, Inc.Inventors: Shuichi Murakami, Seiji Ota, Junji Tan
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Publication number: 20070173603Abstract: An object to be solved Disclosed is a novel resin modifier which enables to improve the low-temperature impact resistance of a polymer alloy including a polar group-containing polymer and an olefin polymer and enables to obtain a molded article with smooth surface when the polymer alloy is molded. Also disclosed is a polar group-containing polymer composition including the resin modifier. The polar group-containing polymer composition which is suitable in the invention is a resin composition of a polylactic acid and a polypropylene.Type: ApplicationFiled: March 10, 2005Publication date: July 26, 2007Applicant: Mitsui Chemicals, Inc.Inventors: Shuichi Murakami, Seiji Ota, Junji Tan
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Patent number: 7160949Abstract: Olefin block copolymers (A-1) are disclosed represented by the formula (I) PO1-g1-B1 . . . (I) wherein PO1 is a segment comprised of repeating units derived from an olefin having 2 to 20 carbon atoms, g1 is an ester, ether, amide, imide, urethane, urea, silylether or carbonyl linkage, and B1 is a segment containing an unsaturated hydrocarbon or a hetero atom. The olefin block copolymers are suitable for uses in adhesives, various molded articles such as construction and civil engineering materials, automobile interior and exterior materials, gasoline tanks, electric and electronic parts, medical care and sanitation materials, materials of miscellaneous goods, resin materials having environmental degradation properties, films and sheets, modifiers and dispersions.Type: GrantFiled: January 18, 2001Date of Patent: January 9, 2007Assignee: Mitsui Chemicals, Inc.Inventors: Seiji Ota, Satoru Moriya, Ryoji Mori, Taku Koda, Junji Tan, Shinichi Kojoh, Hideyuki Kaneko, Shunichi Hama, Tadahito Nobori, Tomoaki Matsugi, Norio Kashiwa
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Patent number: 7153587Abstract: The present invention provides a polyester resin which comprises (a-1) 45 to 99% by mole of an oxycarboxylic acid unit having 5 carbon atoms or less, (a-2) 0.5 to 27.5% by mole of an aromatic dicarboxylic acid unit, and (a-3) 0.5 to 27.5% by mole of an aliphatic diol unit having 4 carbon atoms or less, and containing (a-1) to (a-3) in a total amount of 95% by mole or greater, wherein the relationship between the content of the oxycarboxylic acid, expressed as M % by mole, and the density ? (kg/m3) of the polyester resin, satisfies the formula ??1349+M×0.85.Type: GrantFiled: May 31, 2004Date of Patent: December 26, 2006Assignee: Mitsui Chemicals, Inc.Inventors: Junji Tan, Yasuhiro Mutou, Seiji Ota, Toyoaki Sasaki
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Publication number: 20060217523Abstract: There is provided by the present invention a polyester resin composition containing a copolyester having hydroxy carboxylic acid units as constituent units or a polyoxycarboxylic acid, wherein hydroxy carboxylic acid units of 5 or less carbon atoms are contained in amounts of 2 to 75% by mol based on 100% by mol of all the constituent units contained in the composition, and a molar ratio SAA of hydroxy carboxylic acid units both of whose neighboring units are hydroxy carboxylic acid units to all the hydroxy carboxylic acid units contained and a molar ratio SBB of hydroxy carboxylic acid units neither of whose neighboring units is a hydroxy carboxylic acid unit to all the hydroxy carboxylic acid units contained satisfy the following formula: 0.Type: ApplicationFiled: January 8, 2004Publication date: September 28, 2006Applicant: Mitsui Chemical, Inc.Inventors: Junji Tan, Yasuhiro Mutou, Seiji Ota
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Publication number: 20060204771Abstract: The present invention provides a polyester resin which comprises (a-1) 45 to 99% by mole of an oxycarboxylic acid unit having 5 carbon atoms or less, (a-2) 0.5 to 27.5% by mole of an aromatic dicarboxylic acid unit, and (a-3) 0.5 to 27.5% by mole of an aliphatic diol unit having 4 carbon atoms or less, and containing (a-1) to (a-3) in a total amount of 95% by mole or greater, wherein the relationship between the content of the oxycarboxylic acid, expressed as M % by mole, and the density ? (kg/m3) of the polyester resin, satisfies the formula ??1349+M×0.85.Type: ApplicationFiled: May 31, 2004Publication date: September 14, 2006Inventors: Junji Tan, Yasuhiro Mutou, Seiji Ota, Toyoaki Sasaki
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Patent number: 6710135Abstract: A resin composition comprising: 30 to 95 parts by weight of a biodegradable polylactic acid resin (A), and 70 to 5 parts by weight of a specified polyalkylene carbonate (B), providing that the sum of components (A) and (B) is 100 parts by weight. The invention provides an excellent resin composition which is biodegradable, transparent, flexible and has gas barrier properties and which is free from the occurrence of bleedout with the passage of time. Further, the resin composition of the invention is excellent in moldability, so that a variety of molded articles can be produced by various molding techniques and put to practical use. The resultant molded articles, when disposed of after use, exhibit high biodegradability in natural environment.Type: GrantFiled: March 25, 2002Date of Patent: March 23, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Junji Tan, Kazuo Wakimura, Shoji Obuchi
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Publication number: 20030055179Abstract: The present invention provides polymers having any one of properties including affinity for metals or polar resins, impact resistance, mar resistance, heat resistance, rigidity, oil resistance, transparency, anti-fogging properties, electric insulating properties, high breakdown voltage, coating properties, low-temperature flexibility, moldability, environmental degradation, fluidity and dispersibility, and provides a process for preparation thereof.Type: ApplicationFiled: July 19, 2002Publication date: March 20, 2003Inventors: Seiji Ota, Satoru Moriya, Ryoji Mori, Taku Koda, Junji Tan, Shinichi Kojoh, Hideyuki Kaneko, Shunichi Hama, Tadahito Nobori, Tomoaki Matsugi, Norio Kashiwa
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Publication number: 20030013821Abstract: A resin composition comprising: 30 to 95 parts by weight of a biodegradable polylactic acid resin (A), and 70 to 5 parts by weight of a specified polyalkylene carbonate (B), providing that the sum of components (A) and (B) is 100 parts by weight. The invention provides an excellent resin composition which is biodegradable, transparent, flexible and has gas barrier properties and which is free from the occurrence of bleedout with the passage of time. Further, the resin composition of the invention is excellent in moldability, so that a variety of molded articles can be produced by various molding techniques and put to practical use. The resultant molded articles, when disposed of after use, exhibit high biodegradability in natural environment.Type: ApplicationFiled: March 25, 2002Publication date: January 16, 2003Inventors: Junji Tan, Kazuo Wakimura, Shoji Obuchi
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Patent number: 5856386Abstract: A crystalline thermoplastic resin composition comprises a rosin acid metallic salt and a crystalline thermoplastic resin. Optionally, a compatibilizing agent may also be included. The rosin acid metallic salt, which acts as a crystal nucleating agent, increases the crystallization rate of the crystalline thermoplastic resin and enables the formation of fine crystals of the resin. Thus, the crystalline thermoplastic resin composition can crystallize at a high rate, and provide molded articles having excellent mechanical properties and/or optical properties.Type: GrantFiled: January 22, 1997Date of Patent: January 5, 1999Assignees: Mitsui Petrochemicals Industries, Ltd., Arakawa Chemical Industries, Ltd.Inventors: Hideki Sakai, Mikio Nakagawa, Tetsuji Kasai, Kimio Ueda, Masao Maeda, Yukiharu Yamada, Hiroyuki Hori, Junji Tan, Kan Matsumoto