Patents by Inventor Hirofumi Yoshimura
Hirofumi Yoshimura 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: 7282683Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grille without any tools. In this apparatus, an air-exhausting grille is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magnetic joint plate are arranged, whereas a main body located opposite to the air-exhausting grille is arranged by that a slit hole, a hooking flange, and a magnetic fixing plate are arranged. As a result, since the magnetic joint plate is absorbed with the magnetic fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grille can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.Type: GrantFiled: April 14, 2005Date of Patent: October 16, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
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Patent number: 7022958Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation fan for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.Type: GrantFiled: March 21, 2005Date of Patent: April 4, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Patent number: 6974936Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation means for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.Type: GrantFiled: September 5, 2002Date of Patent: December 13, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Publication number: 20050178763Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grille without any tools. In this apparatus, an air-exhausting grille is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magneto joint plate are arranged, whereas a main body located opposite to the air-exhausting grille is arranged by that a slit hole, a hooking flange, and a magneto fixing plate are arranged. As a result, since the magneto joint plate is absorbed with the magneto fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grille can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.Type: ApplicationFiled: April 14, 2005Publication date: August 18, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
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Publication number: 20050167425Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation fan for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.Type: ApplicationFiled: March 21, 2005Publication date: August 4, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Patent number: 6894260Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grill without any tools. In this apparatus, an air-exhausting grill is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magneto joint plate are arranged, whereas a main body located opposite to the air-exhausting grill is arranged by that a slit hole, a hooking flange, and a magneto fixing plate are arranged. As a result, since the magneto joint plate is absorbed with the magneto fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grill can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.Type: GrantFiled: December 2, 2002Date of Patent: May 17, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
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Patent number: 6657172Abstract: A high frequency heating apparatus equipped with the oven hood comprises a heating chamber, a power supply apparatus for controlling high frequency output power by way of a semiconductor element, ventilation, and illumination for illuminating an object to be heated by another heat-cooking apparatus. Since the high frequency output power is controlled in such a manner that an optimum heating output power is applied in a linear manner for a proper time period, the heating output power can be controlled in the linear manner and the high frequency heating apparatus can be largely reduced in weight. As a result, the highest-speed heat-cooking operation by receiving the maximum high frequency output power can be realized, and the optimum cooking performance can be realized. Both the installation performance of the appliance to the mounting wall plane and the safety performance achieved by stably fixing the appliance can also be largely improved.Type: GrantFiled: July 17, 2002Date of Patent: December 2, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Ikuhiro Inada, Masato Matsuda
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Publication number: 20030111464Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grill without any tools. In this apparatus, an air-exhausting grill is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magneto joint plate are arranged, whereas a main body located opposite to the air-exhausting grill is arranged by that a slit hole, a hooking flange, and a magneto fixing plate are arranged. As a result, since the magneto joint plate is absorbed with the magneto fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grill can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.Type: ApplicationFiled: December 2, 2002Publication date: June 19, 2003Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
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Publication number: 20030047560Abstract: The present invention provides a high frequency heating apparatus equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber; an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber; cooling means for cooling the electric power supplying apparatus; another heat-cooking apparatus provided with heating means operated by gas and electric power, which is installed under an appliance main body; and ventilating means for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling means is joined onto an air intake path of the ventilating means.Type: ApplicationFiled: September 5, 2002Publication date: March 13, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
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Publication number: 20030015525Abstract: A high frequency heating apparatus equipped with the oven hood comprises a heating chamber, a power supply apparatus for controlling high frequency output power by way of a semiconductor element, a ventilation means, and an illumination means for illuminating an object to be heated of another heat-cooking apparatus. Since the high frequency output power is controlled in such a manner that optimum heating output power is applied in a linear manner for a proper time period, the heating output power can be controlled in the linear manner and the high frequency heating apparatus can be largely made in light weight. As a result, highest-speed heat-cooking operation by receiving the maximum high frequency output power can be realized, the optimum cooking performance can be realized, and both installation performance of the appliance to the mounting wall plane and safety performance achieved by stably fixing the appliance can be largely improved.Type: ApplicationFiled: July 17, 2002Publication date: January 23, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Ikuhiro Inada, Masato Matsuda
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Patent number: 6114677Abstract: A microwave heating apparatus includes a magnetron (6) mounted on a top surface of a wave guide (7). A bottom surface of wave guide (7) is inclined towards the bottom of the wave guide opening. A metal plate (9) is provided with a predetermined clearance above the bottom surface of wave guide (7). The microwaves are irradiated from an antenna (10) of magnetron (6) and travel along the bottom surface of wave guide (7). The microwaves are guided to an opening (8) under regulation by a metal plate (9) dispersion, and thus the microwaves reach the opening without suffering from the loss of energy. An object of heating (1) is irradiated directly by the microwaves with an improved heating efficiency.Type: GrantFiled: December 2, 1998Date of Patent: September 5, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Susumu Idomoto, Kazuho Sakamoto, Hirofumi Yoshimura
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Patent number: 5514332Abstract: Titanium having a thermal shrinkage factor close to that of Nb.sub.3 Sn superconducting wire, whereby it gives rise to little degradation of the properties of the superconducting wire and also offers a good balance between strength and toughness at liquid helium temperature, making it highly suitable as a conduit pipe material used as a seal for liquid helium for high-magnetic-field superconducting coil applications. The present invention focusses on the major effect on strength and toughness of titanium material that the oxygen content has, and appropriately controls the oxygen and other impurities content of pure titanium to provide titanium material comprising, in mass %, 0.07 to 0.13 percent O, up to 0.10 percent Fe, up to 0.10 percent C+N, and up to 0.Type: GrantFiled: May 16, 1994Date of Patent: May 7, 1996Assignees: Nippon Steel Corporation, Japan Atomic Energy Research InstituteInventors: Takao Horiya, Shigeru Ohkita, Toshiaki Nishida, Hirofumi Yoshimura, Naoomi Yamada, Masayuki Yamamoto, Hideo Nakajima, Toshinari Andou
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Patent number: 5402204Abstract: The camera of the invention has a clean and semi-external electric source. In the camera, an electric section includes a photometric circuit and a display unit. A solar cell is the electric source. A capacitor is charged by the solar electric power. A release switch is linked with a shutter release button. The release switch connects the solar cell and the capacitor and disconnects the solar cell and the capacitor when the shutter release button is half pushed. The release switch drives a shutter when the shutter release button is fully pushed. A selecting switch is connected to the release switch. The selecting switch has a first position, at which the solar cell and an electric section are connected and the capacitor and the electric section are disconnected, and a second position, at which the solar cell and the electric section are disconnected and the capacitor and the electric section are connected.Type: GrantFiled: August 25, 1993Date of Patent: March 28, 1995Assignee: Kabushiki Kaisha CosinaInventor: Hirofumi Yoshimura
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Patent number: 5371343Abstract: There is disclosed a heating cooking device including a heating chamber for heating an object to be heated, a high-frequency oscillator for generating high-frequency electromagnetic waves, a wave guide for guiding the high-frequency electromagnetic waves from the high-frequency oscillator to the heating chamber, a rotary table for supporting thereon the object to be heated for rotation therewith, and a wave stirrer fan for stirring the electromagnetic waves in the heating chamber. A feeder port of the wave guide is disposed at a side of the heating chamber, and the wave stirrer fan is disposed within the wave guide in opposed relation to the feeder port. The high-frequency oscillator is disposed on the side of the feeder port. The feeder port is larger in size than the wave stirrer fan.Type: GrantFiled: May 21, 1993Date of Patent: December 6, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hirofumi Yoshimura, Toyotsugu Hatagawa, Yuji Hayakawa, Mitsuo Akiyoshi
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Patent number: 5367009Abstract: This invention provides a dispersing agent suitable for the production of an aqueous rosin emulsion which contains as an active ingredient a copolymer salt containing a certain oxyalkylene-containing monomer unit and a tertiary and/or quaternary nitrogen-containing monomer unit and a dispersing agent suited to the production of aqueous rosin emulsions which contains at least one member of units of quaternary nitrogen-containing monomer having a hydroxyl group, units of quaternary nitrogen-containing monomer having a vinylbenzyl group and units of quaternary nitrogen-containing monomer having a maleimide group and at least one member of hydrocarbon monomer units and (meth)acrylate ester monomer units.The invention further provides an aqueous rosin emulsion as prepared using the above dispersing agent and a sizing agent containing the emulsion as an active ingredient.Type: GrantFiled: December 9, 1991Date of Patent: November 22, 1994Assignee: Arakawa Chemical Industries Ltd.Inventors: Tetsuya Inoue, Yoshihiro Sasaki, Hirofumi Yoshimura
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Patent number: 5125986Abstract: This present invention is characterized in that a titanium material on an .alpha. or (.alpha.+.beta.) titanium alloy material hydrogenated in an amount of 0.02 to 2% by weight of hydrogen is heated to a temperature above the .beta. transformation point and below 1100.degree. C., is hot worked in that temperature range at a reduction of 30% or more, the hot working is terminated in a .beta. single phase temperature region, and cooling to 400.degree. C. or less, and annealing in vacuum are then carried out, whereby titanium and titanium alloy materials having a fine acicular microstructure are obtained.Type: GrantFiled: December 19, 1990Date of Patent: June 30, 1992Assignee: Nippon Steel CorporationInventors: Kinichi Kimura, Masayuki Hayashi, Mitsuo Ishii, Hirofumi Yoshimura, Jinichi Takamura
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Patent number: 5108517Abstract: According to the present invention, titanium and titanium alloy materials having a fine equiaxed microstructure are produced. A titanium, .alpha. titanium alloy or (.alpha.+.beta.) titanium alloy material is hydrogenated in an amount of 0.02 to 2% by weight. If necessary, the hydrogenated material is subjected to pretreatment [i.e., heated above 700.degree. C. (.beta. transformation point)] and/or working (i.e., working at 450.degree. to 950.degree. C., or temperatures above .beta. transformation point and below 1100.degree. C.). The material is then aged at 10.degree. to 530.degree. C. or 10.degree. to 700.degree. C. (in the case of working at temperatures above .beta. transformation point), and finally dehydrogenated and recrystallized to prepared a material having a fine equiaxed microstructure.Type: GrantFiled: July 26, 1990Date of Patent: April 28, 1992Assignee: Nippon Steel CorporationInventors: Kinichi Kimura, Masayuki Hayashi, Mitsuo Ishii, Hirofumi Yoshimura, Jin-ichi Takamura
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Patent number: 5092940Abstract: In the production of titanium and (.alpha.+.beta.)-type titanium alloy materials, a material hydrogenated in an amount of 0.02 to 2% by weight of hydrogen is worked at a temperature of 450.degree. to 900.degree. C. at a reduction of more than 60%, and the material is dehydrogenated and annealed in vacuum. The working of the titanium material is carried out at 450.degree. to 800.degree. C., and the working of the (.alpha.+.beta.)-type titanium alloy material is carried out at 550.degree. to 900.degree. C. Furthermore, in the production of titanium, .alpha.-type titanium alloy, and (.alpha.+.beta.)-type titanium alloy materials, a material hydrogenated in an amount of 0.02 to 2% by weight of hydrogen is subjected to a heat treatment wherein the material is heated at a temperature not lower than the .beta. transformation temperature and then cooled, the material is worked at a temperature of 450.degree. to 950.degree. C.Type: GrantFiled: March 16, 1990Date of Patent: March 3, 1992Assignee: Nippon Steel CorporationInventors: Kinichi Kimura, Masayuki Hayashi, Mitsuo Ishii, Hirofumi Yoshimura, Jin Takamura
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Patent number: 4694151Abstract: An autofocusing zoom lens, comprising a half-mirror prism and a sensor capable of detecting light in conjunction with the half-mirror prism, is formed by inserting the half-mirror prism between the front-lens and rear-lens groups of the master-lens groups of the lens system. The insertion of the half-mirror prism has the advantages that the back focus may be shortened, the lens aperture need not be enlarged, and that the lens length in effect may be shortened. Additional use of a sensor-related lens makes autofocus available even when the angle of exit pupil of the imaging optical system is small.Type: GrantFiled: June 17, 1985Date of Patent: September 15, 1987Assignee: Kabushiki Kaisha CosinaInventor: Hirofumi Yoshimura
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Patent number: 4568811Abstract: This invention is designed to make uniform the heating of the object inside the heating chamber by turning an internal waveguide which is roughly in a foldable fan shape and located at the bottom of the heating chamber in a structure adapted for feeding high frequency electric waves from the bottom of the heating chamber. In order to have stable gyration of the internal waveguide, and annular protrusion made of a low loss dielectric is placed between the low impedance parts provided on the internal waveguide and the heating chamber bottom surface. In this way, a rotary structure which is economical, easy to assemble and reliable can be realized.Type: GrantFiled: October 25, 1984Date of Patent: February 4, 1986Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hirofumi Yoshimura, Masahiro Nitta, Yoshiyuki Takada