Patents by Inventor Minoru Nomura
Minoru Nomura 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: 20030038131Abstract: A vacuum sealed container and a method for cooking food under vacuum including the steps of heating the food and the cooking liquid in a heat-and-cold resistant vacuum-sealed container having microwave permeability using the microwave oven at high power for boiling, heating the container for a required time, stopping the heating to cool the container, thereby producing a vacuum therein, heating the container for a required time to cook the food and the cooking liquid at low temperatures using the microwave oven at low power, while the container is under vacuum, and allowing the container to cool.Type: ApplicationFiled: August 14, 2002Publication date: February 27, 2003Applicant: HIKARI KINZOKU INDUSTRY CO., LTD.Inventors: Minoru Nomura, Hitoshi Nomura
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Patent number: 6248491Abstract: The present invention provides a polyester resin toner which has good fixing properties and is superior in image quality in a heat roller fixation system without employing an anti-offset solution, and which has a spherical or generally spherical shape and has a small particle diameter, and a method of producing the same. In a toner for electrostatic image development comprising a binder resin and a colorant, said binder resin is made of a polyester resin. Furthermore, the weight-average molecular weight as measured by gel permeation chromatography of a tetrahydrofuran-soluble fraction of said polyester resin contained in the toner is 30,000 or more and the weight-average molecular weight/number-average molecular weight is 12 or more and, moreover, the area ratio of a molecular weight of 600,000 or more is 0.5% or more and the area ratio of a molecular weight of 10,000 or less is within a range of 20-80%.Type: GrantFiled: September 21, 2000Date of Patent: June 19, 2001Assignee: Dainippon Ink and Chemical Inc.Inventors: Hitoshi Takayanagi, Minoru Nomura, Takashi Ito, Kenichi Hirabayashi, Yukiko Soma, Toshiro Kogawara, Toyomi Hashizume, Kazuo Itoya
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Patent number: 6203957Abstract: A spherically particulate toner characterized by a volume-average particle diameter of from 1 to 6 &mgr;m, a colorant content of not less than 9.1% by weight, particularly not less than 5% by weight when the colorant is an organic chromatic pigment, based on the total weight of the binder resin and colorant used and an average circularity (average of circularity defined by (perimeter of circle having the same area as the projected area of particle)/(perimeter of the projected image of particle)) of not less than 0.98. The spherically particulate toner according to the present invention gives an excellent image quality and can be consumed in a drastically reduced amount per sheet of printing paper. By predetermining the particle size distribution of spherical toner particles and the added amount of inorganic oxide fine particles to optimum values, the image quality can be further improved.Type: GrantFiled: January 29, 1999Date of Patent: March 20, 2001Assignee: Dianippon Ink and Chemicals, Inc.Inventors: Minoru Nomura, Hitoshi Takayanagi, Kenichi Hirabayashi, Takashi Ito, Kazuo Itoya, Masahiro Yoshida
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Patent number: 6183924Abstract: The present invention provides a novel developer comprising a spherically particulate toner having a volume-average particle diameter of from about 1 to 6 &mgr;m for use in the development of electrostatic image in electrophotographic copying machines or printers having a colorant content of from 8 to 20% by weight, if the colorant is carbon black, or from 3 to 20% by weight, if the colorant is an organic pigment, based on the sum of the weight of binder resin and colorant and a resin-coated carrier having a volume-average particle diameter of from 20 to 150 &mgr;m. The present invention also provides a suitable polymerization or emulsification process for the preparation of a particulate toner to be incorporated in the developer. The use of the electrostatic image developer makes it possible to not only improve the quality of images provided by copying machines or printers but also realize drastic reduction of the amount of toner to be consumed per sheet of printing paper.Type: GrantFiled: February 24, 1999Date of Patent: February 6, 2001Assignee: Daimippon Ink and Chemicals, Inc.Inventors: Minoru Nomura, Takashi Ito, Hitoshi Takayanagi, Kazuo Itoya
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Patent number: 6127083Abstract: A non-magnetic one-component development process is provided which comprises supplying a developer onto a photoreceptor using a non-magnetic one-component developing machine comprising at least a developer-supporting roll and a layer-forming blade so that an electrostatic latent image on said photoreceptor is developed, characterized in that as said developer there is used a spherically particulate toner having a volume-average particle diameter of from 1 to 6 .mu.m and the amount of said toner to be attached to said developer-supporting roll is from 0.1 mg/cm.sup.2 to 0.45 mg/cm.sup.2. In accordance with the process of the present invention, the image quality can be drastically improved while drastically reducing the consumed amount of the toner.Type: GrantFiled: January 29, 1999Date of Patent: October 3, 2000Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Minoru Nomura, Takashi Ito, Hitoshi Takayanagi, Kazuo Itoya
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Patent number: 6035769Abstract: A vacuum sealed preservation container comprises a container main body and a lid made of a synthetic resin which is heat resistant and cold resistant and has microwave permeability, in which the lid has on the upper surface thereof a check valve constituted such that gases in the container flow out only in one direction to the outside of the container through a vent hole and a packing mounted in a packing case disposed in contiguous with the circumferential edge thereof, and the container is constituted such that the lid and the container main body are in airtight contact with each other by way of the packing.Type: GrantFiled: June 22, 1999Date of Patent: March 14, 2000Assignee: Hikari Kinzoku Industry Co., Ltd.Inventors: Minoru Nomura, Shigeru Nomura
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Patent number: 6017670Abstract: An electrophotographic toner having a volume-average particle diameter of from 3 to 15 .mu.m. The toner comprises a spherical particulate material having an average circularity of not less than 0.97 having a colorant encapsulated in a binder resin. The binder resin is a styrene-acrylic resin having an acid value of from 30 to 150 which is at least partly crosslinked. The tetrahydrofuran insoluble content in the whole of the binder resin including crosslinkd portions in the particulate material is from 0.5 to 70% by weight.Type: GrantFiled: June 4, 1998Date of Patent: January 25, 2000Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Toyomi Hashizume, Shoji Okuno, Yukiko Soma, Hitoshi Takayanagi, Minoru Nomura, Takashi Ito, Hiroyuki Ohminato
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Patent number: 5974686Abstract: A vacuum sealed preservation container comprises a container main body and a lid made of a synthetic resin which is heat resistant and cold resistant and has microwave permeability, in which the lid has on the upper surface thereof a check valve constituted such that gases in the container flow out only in one direction to the outside of the container through a vent hole and a packing mounted in a packing case disposed in contiguous with the circumferential edge thereof, and the container is constituted such that the lid and the container main body are in airtight contact with each other by way of the packing.Type: GrantFiled: April 8, 1998Date of Patent: November 2, 1999Assignee: Hikari Kinzoku Industry Co., Ltd.Inventors: Minoru Nomura, Shigeru Nomura
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Patent number: 5885743Abstract: Disclosed are an electrophotographic toner which is a spherical particle comprising a binder resin having encapsulated therein a colorant and has a volume average particle size of from 3 to 12 .mu.m, the binder resin being a non-crosslinked styrene-acrylic resin having an acid value of from 30 to 120, containing from 5 to 60% by weight of the components having a molecular weight in terms of polystyrene by gel permeation chromatography of 200,000 or more and having a ratio (Mw/Mn) of the weight-average molecular weight Mw to the number-average molecular weight Mn of from 4 to 30; and a process for preparing an electrophotographic toner comprising spherical particles having a volume average grain size of from 3 to 12 .mu.Type: GrantFiled: November 26, 1997Date of Patent: March 23, 1999Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hitoshi Takayanagi, Hiroko Sakurai, Kazuo Itoya, Kinji Shinzo, Yukiko Soma, Kenichi Hirabayashi, Koichiro Matsuki, Minoru Nomura, Takashi Ito, Hiroyuki Ohminato
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Patent number: 5691095Abstract: A toner containing at least a colorant and a resin, in which the resin is a polyester resin having a total acid radical content of 2 to 50 mg equivalents per 100 g and having a weight-average molecular weight of 2,000 to 100,000, and the toner particles are spherical and have an average particle diameter of 3 to 13 .mu.m. The toner is produced by a process comprising adding an aqueous medium to a dispersion of at least a colorant and an anionic self-emulsifiable resin in a water-miscible organic solvent to cause phase inversion to obtain an emulsion, and separating the produced particles from the aqueous medium, followed by drying, in which the anion self-emulsifiable resin is a polyester resin having a neutral salt structure, having a total acid radical content of 2 to 50 mg equivalents per 100 g and having a weight-average molecular weight of 2,000 to 100,000.Type: GrantFiled: December 7, 1995Date of Patent: November 25, 1997Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Kinji Shinzo, Hideki Watanabe, Seiichi Uno, Nansei Tashiro, Minoru Nomura
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Patent number: 4999087Abstract: A paper web forming apparatus essentially comprising two wires which move together with stock which is held therebetween and a plurality of wire supporting members for supporting the wires, each of the wire supporting members forming a wedge-shaped space as defined between the wire surface and the wire supporting member, wherein the wedge-shaped space is so designed that the width as measured therebetween decreases as seen in the direction of movement of the wires.Type: GrantFiled: June 12, 1989Date of Patent: March 12, 1991Assignee: Research Association for Pulp and Paper TechnologyInventors: Masafumi Ebihara, Takeshi Akitomo, Minoru Nomura
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Patent number: 4694403Abstract: A method for equalizing the capacitances of a plurality of circuits in order to compensate for different signal transmission delay times within an LSI circuit. The wiring capacitance of the individual circuits are measured and the maximum capacitance value in a circuit group is determined. An equalizing capacitance pattern, which has a capacitance corresponding to the difference between the maximum capacitance value and the capacitance value of an individual circuit, is applied to each individual circuit.Type: GrantFiled: August 27, 1984Date of Patent: September 15, 1987Assignee: NEC CorporationInventor: Minoru Nomura
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Patent number: 4590497Abstract: A thermosensitive recording label includes a thermosensitive color-forming layer disposed on one side of a substrate and a heat reflecting layer disposed on another side of the substrate and a delayed action adhesive disposed on the heat reflecting layer. The thermosensitive recording label may be manufactured and used without a backing sheet, thus considerably reducing the weight and volume of the label. In use, the thermosensitive recording label is drawn from a roll or stack and the delayed action adhesive activated by a heat lamp, or the like, to place it in a tacky condition for placement on goods. The heat reflecting layer disposed between the delayed action adhesive and the thermosensitive color-forming layer prevents activation of the color-forming layer during heating of the delayed action adhesive.Type: GrantFiled: November 5, 1984Date of Patent: May 20, 1986Assignee: Ricoh Electronics, Inc.Inventors: Tomoo Shibata, Wissam J. Jurdi, Minoru Nomura
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Patent number: 4251593Abstract: The present invention provides a heat-sensitive recording sheet which is composed of a support and a heat-sensitive layer formed on said support, said heat-sensitive layer consisting essentially of a color-developable substance and an organic acid substance capable of making said color-developable substance develop a color when heated and containing at least one member selected from the group consisting of condensate of higher fatty acid amide and formaldehyde and condensate of higher fatty acid and ethylene diamine and at least one member selected from the group consisting of vegetable waxes and mineral waxes.Type: GrantFiled: July 20, 1979Date of Patent: February 17, 1981Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Sakamoto, Minoru Nomura, Minoru Hagiri
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Patent number: 4247595Abstract: A thermosensitive recording material which is composed of a support and a thermosensitive layer formed thereon, said thermosensitive layer comprising a chromogenic substance, a developing substance and an inorganic filler consisting essentially of hexagonal system thin plate type kaolin, is not only capable of forming an image of high quality but also capable of preventing abrasion of the thermal head.Type: GrantFiled: July 27, 1979Date of Patent: January 27, 1981Assignee: Ricoh Co., Ltd.Inventors: Minoru Nomura, Susumu Iwata, Mithuo Ono
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Patent number: 3962183Abstract: Films having good dimensional stability and practically no tendency of fibrillation and also other superior mechanical properties can be obtained easily and at a high production speed by stretching a layer of a substantially amorphous polymer consisting mainly of polyethylene-1,2-diphenoxyethane-4,4'-dicarboxylate at a temperature in the range from Tg to 100.degree.C (wherein Tg is a glass transition point) in the longitudinal direction to 1.5 to 3 times the original length and further stretching the resulting film at a high temperature of 150.degree.C or higher and a high stretching velocity 40000% per minute or higher in the longitudinal direction to give a total stretching ratio of 3.1 times or more.Type: GrantFiled: March 5, 1974Date of Patent: June 8, 1976Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Mitsuo Kohno, Tsuneo Igarashi, Minoru Nomura