Patents by Inventor Yuji Emura
Yuji Emura 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: 8163454Abstract: Disclosed is a resin composition for toners, which contains a resin (D) obtained by reacting a styrene polymer (A) containing an active hydrogen group and having a peak molecular weight (Mp) of not less than 30,000 but not more than 2,000,000, a styrene polymer (B) containing a carboxyl group and having a peak molecular weight (Mp) of not less than 2,000 but not more than 20,000, and a crosslinkable compound (C) having an isocyanate group.Type: GrantFiled: October 29, 2007Date of Patent: April 24, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Linwood Blanton Muire, III, Hiroyuki Takei, Yuji Emura, Kouichi Shiina
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Publication number: 20100293715Abstract: Provided is temperature-controlled air circulation type bedding which introduces the blowoff air generated by temperature control unit into an air flow passage provided around a bedding body so as to cool or warm the body of a person in the bedding, controls the blowoff air temperature to form a comfortable sleeping environment irrespective of an external atmosphere temperature, suppresses discharge of carbon dioxide gas, etc. with a compact configuration, and has low power consumption. The temperature-controlled air circulation type bedding includes a temperature control unit 2 which controls the blowoff air temperature by a cooling or heating action, and a bedding body 3 which provides an air flow passage 27 which allows the blowoff air from the temperature control unit to be introduced and circulated therethrough, and cools or warms the inside thereof.Type: ApplicationFiled: October 21, 2008Publication date: November 25, 2010Inventors: Noriaki Sakamoto, Tatsuya Ozaki, Koichiro Ochiai, Kosaku Adachi, Yuji Emura, Hiroya Ishikawa
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Publication number: 20100279596Abstract: Provided is a vehicle-mounted temperature control device capable of effectively discharging the exhaust air, which is generated during the driving of a temperature control unit which blows off cooled or warmed air, to the outside of a vehicle. A temperature control unit (1) which blows off the air temperature-controlled by a cooling or warming action is attached to the inside (2) of a vehicle, and an exhaust port (33) is provided at the wall (2a) of a vehicle body to discharge the exhaust air generated during the driving of the temperature control unit to the outside of the vehicle.Type: ApplicationFiled: October 22, 2008Publication date: November 4, 2010Inventors: Yuji Emura, Hiroya Ishikawa, Keishi Matsui, Eiichi Okamoto, Takayuki Nakata, Noriaki Sakamoto, Koichiro Ochiai
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Publication number: 20100263395Abstract: Provided is a vehicle-mounted temperature control device (2) capable of suppressing resource wasting or environmental contamination during an idling stop, an easily installed vehicle-mounted refrigeration unit which blows off cooled or warmed air to the inside of a vehicle, and selectively cooling or warming not only a napping cabin behind the driver's seat, but also the driver's seat. The vehicle-mounted temperature control device includes a refrigeration unit having a refrigeration cycle in which a compressor, a condenser, and an evaporator to which driving electric power is supplied by a battery 5 are annularly connected; a temperature control chamber formed from a heat-insulating wall body having a blowoff air trunk and a return air trunk and having a circulation fan and the evaporator in the refrigeration cycle housed therein; and a machine chamber in which the compressor, the condenser, and a radiation fan which cools the compressor and condenser are disposed.Type: ApplicationFiled: October 30, 2008Publication date: October 21, 2010Inventors: Kosaku Adachi, Noriaki Sakamoto, Tatsuya Ozaki, Koichiro Ochiai, Yuji Emura, Hiroya Ishikawa, Takayuki Nakata
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Publication number: 20100003611Abstract: Disclosed is a resin composition for toners, which contains a resin (D) obtained by reacting a styrene polymer (A) containing an active hydrogen group and having a peak molecular weight (Mp) of not less than 30,000 but not more than 2,000,000, a styrene polymer (B) containing a carboxyl group and having a peak molecular weight (Mp) of not less than 2,000 but not more than 20,000, and a crosslinkable compound (C) having an isocyanate group.Type: ApplicationFiled: October 29, 2007Publication date: January 7, 2010Applicant: MITSUI CHEMICALS, INC.Inventors: Linwood Blanton Muire, III, Hiroyuki Takei, Yuji Emura, Kouichi Shiina
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Patent number: 7569319Abstract: A polyester binder resin for a toner that excels in low-temperature fixing properties, offset resistance, development durability, long-term storability, electrification properties, pulverizability, etc.; and a toner containing the same. The binder resin for a toner is comprised of a polyester resin and, dispersed therein, a wax having a substituent selected from among a substituent of aromatic structure (representative example thereof is a group derived from a styrene compound), a carboxyl group and a hydroxyl group, or comprised of a polyester resin having the above wax introduced in the structure thereof. The toner containing the above binder resin for toner exhibits excellent capability in not only, as fundamental performance of toner, low-temperature fixing properties and offset resistance but also development durability, antiblocking properties and pulverizability.Type: GrantFiled: November 26, 2003Date of Patent: August 4, 2009Assignee: Mitsui Chemicals, Inc.Inventors: Hirotaka Uosaki, Hiroyuki Takei, Yuji Emura, Hiroshi Matsuoka
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Patent number: 7105260Abstract: A binder resin for a toner comprises a polyester component having a specific structure which is not soluble in tetrahydrofuran, and a polyester component having a specific branched structure which is soluble in tetrahydrofuran. The binder resin can provide a toner, which is superior in low-temperature fixation and offset resistance and can be used in high speed printing in response to the recent market demands owing to its specific structure.Type: GrantFiled: May 30, 2003Date of Patent: September 12, 2006Assignee: Mitsui Chemicals, Inc.Inventors: Tomoya Terauchi, Hirotaka Uosaki, Hiroshi Matsuoka, Yuji Emura, Hiroyuki Takei, Hironobu Hashimoto
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Publication number: 20060078816Abstract: A polyester binder resin for a toner that excels in low-temperature fixing properties, offset resistance, development durability, long-term storability, electrification properties, pulverizability, etc.; and a toner containing the same. The binder resin for a toner is comprised of a polyester resin and, dispersed therein, a wax having a substituent selected from among a substituent of aromatic structure (representative example thereof is a group derived from a styrene compound), a carboxyl group and a hydroxyl group, or comprised of a polyester resin having the above wax introduced in the structure thereof. The toner containing the above binder resin for toner exhibits excellent capability in not only, as fundamental performance of toner, low-temperature fixing properties and offset resistance but also development durability, antiblocking properties and pulverizability.Type: ApplicationFiled: November 26, 2003Publication date: April 13, 2006Applicant: MITSUI CHEMICALS, INC.Inventors: Hirotaka Uosaki, Hiroyuki Takei, Yuji Emura, Hiroshi Matsuoka
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Patent number: 6733942Abstract: The present invention relates to a toner composition for electrophotography, used for development of electrostatic image in electrophotography, electrostatic printing, etc., as well as to a process for producing such a toner composition. The toner composition of the present invention comprises a binder resin component [component (A)] and a coloring agent component [component (B)], wherein the binder resin component [component (A)] comprises a particular crosslinked aromatic polyester resin component [component (a-1)] and a particular linear aromatic polyester resin component [component (a-2)] and the proportions of the component (a-1) and the component (a-2) are 5 to 80% by weight [the component (a-1)] and 20 to 95% by weight [the component (a-2)] based on the total weight of the two components.Type: GrantFiled: May 7, 2002Date of Patent: May 11, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Yuji Emura, Shoji Kawasaki, Masaaki Shin, Hiroshi Matsuoka
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Publication number: 20040067430Abstract: A binder resin for a toner comprises a polyester component having a specific structure which is not soluble in tetrahydrofuran, and a polyester component having a specific branched structure which is soluble in tetrahydrofuran. The binder resin can provide a toner, which is superior in low-temperature fixation and offset resistance and can be used in high speed printing in response to the recent market demands owing to its specific structure.Type: ApplicationFiled: May 30, 2003Publication date: April 8, 2004Applicant: Mitsui Chemicals, Inc.Inventors: Tomoya Terauchi, Hirotaka Uosaki, Hiroshi Matsuoka, Yuji Emura, Hiroyuki Takei, Hironobu Hashimoto
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Publication number: 20030008225Abstract: The present invention relates to a toner composition for electrophotography, used for development of electrostatic image in electrophotography, electrostatic printing, etc., as well as to a process for producing such a toner composition.Type: ApplicationFiled: May 7, 2002Publication date: January 9, 2003Inventors: Yuji Emura, Shoji Kawasaki, Masaaki Shin, Hiroshi Matsuoka
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Patent number: 6395843Abstract: Urethane-modified polyester resin which has a total acid value not greater than 10 KOH mg/g and is obtained by kneading, in a molten state, a base polyester resin (A) having an acid value of 5 to 20 KOH mg/g and a hydroxyl value of 40 to 70 KOH mg/g, a low-molecular-weight polyester resin (B) having an acid value not greater than 5 KOH mg/g, a hydroxyl value not greater than 10 KOH mg/g and a weight-average molecular weight of 3,000 to 5,000 and a polyisocyanate compound, wherein components (A) and (B) are at a weight ratio of 3 to 5:7 to 5 and the polyisocyanate compound is in an amount of 0.2 to 1.2 equivalent, in terms of an isocyanate group per equivalent, of the total hydroxyl groups of all the resins.Type: GrantFiled: July 3, 2001Date of Patent: May 28, 2002Assignee: Mitsui Chemicals, Inc.Inventors: Hiroshi Maekawa, Kazuo Hisamatsu, Yuji Emura, Koichi Ogawa, Katsuhiko Mizushima
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Publication number: 20010051704Abstract: An object of the present invention is to provide an electrostatic image developing toner having good charge properties, low-temperature fixing properties, offset resistance and blocking resistance as well as good resistance against sticking to a heated roll and wax dispersibility and a novel urethane-modified polyester resin used for the toner.Type: ApplicationFiled: July 3, 2001Publication date: December 13, 2001Inventors: Hiroshi Maekawa, Kazuo Hisamatsu, Yuji Emura, Koichi Ogawa, Katsuhiko Mizushima
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Patent number: 6284423Abstract: Urethane modified polyester resin which has a total acid value not greater than 10 KOH mg/g and has been obtained by kneading, in a molten state, a base polyester resin (A) having an acid value of 5 to 20 KOH mg/g and a hydroxyl value of 40 to 70 KOH mg/g, a low-molecular-weight polyester resin (B) having an acid value not greater than 5 KOH mg/g, a hydroxyl value not greater than 10 KOH mg/g and a weight-average molecular weight of 3,000 to 5,000 and a polyisocyanate compound, by using the components (A) and (B) at a weight ratio of 3 to 5:7 to 5 and the polyisocyanate compound in an amount of 0.2 to 1.2 equivalent, in terms of an isocyanate group per equivalent, of the total hydroxyl groups of all the resins. This novel urethane-modified polyester resin (C) is used as a binder resin for the toner. For the preparation of the toner, the resin is mixed and kneaded with a colorant, magnetic powders, charge control agent and the like under a molten state, followed by cooling and pulverization.Type: GrantFiled: December 14, 1999Date of Patent: September 4, 2001Assignee: Mitsui Chemicals, Inc.Inventors: Hiroshi Maekawa, Kazuo Hisamatsu, Yuji Emura, Koichi Ogawa, Katsuhiko Mizushima