Patents by Inventor Hideo Nakanishi
Hideo Nakanishi 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: 6416917Abstract: Provided by the present invention are (1) a dry toner excellent in powder flowability and transferability when formed as a small-particle-size toner; (2) a dry toner excellent in any one of heat storage stability, low-temperature fixing property and anti-hot offset property; (3) a dry toner excellent in gloss exhibition when an image is formed by a full color copying machine; and (4) a dry toner which does not need application of an oil to a heat roll. Described specifically, provided by the present invention is a dry toner comprising a toner binder and a colorant, wherein the toner has a Wadell's practical sphericity ranging from 0.90 to 1.00, the toner binder contains a high-molecular-weight condensation resin (A) and a low-molecular-weight condensation resin (B), a ratio (MnA/MnB) of the number average molecular weight (MnA) of the resin (A) to the number average molecular weight (MnB) of the resin (B) is at least 1.Type: GrantFiled: December 1, 2000Date of Patent: July 9, 2002Assignee: Sanyo Chemical Industries Ltd.Inventors: Hideo Nakanishi, Hajime Fukushima
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Patent number: 6326115Abstract: A toner comprising a toner binder and a colorant, composed of resin particles produced by causing an extension reaction and/or crosslinking reaction of a dispersion formed of a reactive group-containing prepolymer (&agr;) contained in an aqueous medium with an extension agent and/or a crosslinking agent (&bgr;). The toner has a Wadell practical sphericity of 0.90 to 1.00 and is superior in fluidity, transferability, the storage stability under heat, low temperature fixing ability and hot offset resistance.Type: GrantFiled: April 28, 2000Date of Patent: December 4, 2001Assignee: Sanyo Chemical Industries, Ltd.Inventors: Hideo Nakanishi, Hajime Fukushima
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Patent number: 6233444Abstract: A radio receiving apparatus has a receiving section for receiving a radio signal, a local oscillating section for generating a first local oscillation signal and a second local oscillation signal, wherein the first local oscillation signal and the second local oscillation signal have each of a first frequency and a second frequency differing from a received frequency. The apparatus also has a frequency converting section for mixing the received signal output from the receiving section and the first local oscillation signal to output an intermediate frequency signal and an orthogonal converting section for orthogonal converting the intermediate frequency signal output with the second local oscillation signal.Type: GrantFiled: March 19, 1998Date of Patent: May 15, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Hideo Nakanishi
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Patent number: 6215456Abstract: In the antenna unit employed in a radio paging receiver, a helical antenna 1 which is positioned along one side of a circuit substrate 4 on which a receiver circuit 3 is mounted and has a main polarization direction formed by a single body of the helical antenna 1 in the Z-axis direction, and a dipole antenna which has a main polarization direction formed by the helical antenna 1 and the circuit substrate 4 on the Y-axis direction are constructed. The non-directional direction characteristic which has a high antenna gain in all directions in the free space by compensating null points in the directivity mutually with use of the antennas whose main polarization directions are intersected substantially orthogonally.Type: GrantFiled: August 3, 1999Date of Patent: April 10, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Hideo Nakanishi
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Patent number: 6154177Abstract: In antenna device which is to be used in a portable radio receiver, plural loop antennas 1 and 3 which are formed along different faces of a case 9 of the radio receiver, respectively, and switching means 5 for selecting one of received signals from the plural loop antennas are disposed. Reception is performed while selecting a loop antenna having a higher received signal level. When an antenna having the directivity or the plane of polarization which are more advantageous is selected, it is possible to ensure high reception performance.Type: GrantFiled: September 3, 1998Date of Patent: November 28, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yutaka Saito, Nozomi Kou, Hideo Nakanishi
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Patent number: 6153704Abstract: A thermoplastic elastomer composition prepared by dynamically treating with heat (a) an oil-extended ethylene-based copolymer rubber which comprises an ethylene-based copolymer rubber with an intrisic viscosity [.eta.] in the range from 4.3 to 6.8 dl/g when measured at 135.degree. C. in decalin and a mineral oil softening agent and (b) an olefin-based resin, in the presence of a crosslinking agent. The composition exhibits well-balanced and excellent elasticity recoverability and moldability, and can produce molded articles with superior appearance.Type: GrantFiled: January 19, 1999Date of Patent: November 28, 2000Assignee: JSR CorporationInventors: Kazuhisa Kodama, Yoshihisa Mizuno, Hideo Nakanishi, Satoshi Yamashita, Kou Hasegawa, Kenji Yasuda
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Patent number: 6096128Abstract: A germanium layer 19 is melted on top of a starting polycrystalline silicon ingot 18, at a temperature below the melting point of pure silicon. Silicon is dissolved at the interface and floats to the top of the germanium melt to form a silicon melt layer 11, from which a crystal 20 can be drawn. The process permits the production of large diameter crystal with low oxygen content and no more than one percent germanium.Type: GrantFiled: June 5, 1998Date of Patent: August 1, 2000Assignees: Toshiba Ceramics Co., Ltd., Komatsu Electronic Metals Co., Ltd., Japan Science and Technology Corporation, Mitsubishi Materials Silicon corporationInventors: Hideo Nakanishi, Susumu Maeda, Keisei Abe, Kazutaka Terashima
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Patent number: 6019837Abstract: A temperature sensor 42 is provided in a furnace 11, measuring temperature above a molten liquid 24 put in a crucible 12 to check proceedings of evaporation of oxygen vaporized from a free surface 44 of the molten liquid 24. From the data, and considering the relation with the oxygen dissolved into the crucible 12, the oxygen concentration in the molten liquid 24 can be found and the amount of oxygen taken into a single silicon crystal 40 pulled up from the molten liquid 24 can be figured out.Type: GrantFiled: November 25, 1997Date of Patent: February 1, 2000Assignees: Komatsu Electronic Metals Co., Ltd., Mitsubishi Materials Silicon Corporation, Kagaku Gijutsu Sinkou Jigyo Dan, Toshiba Ceramics Co., Ltd.Inventors: Susumu Maeda, Keisei Abe, Kazutaka Terashima, Hideo Nakanishi
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Patent number: 6004393Abstract: A temperature sensor 42 is provided in a furnace 11, measuring temperature above a molten liquid 24 put in a crucible 12 to check proceedings of evaporation of oxygen vaporized from a free surface 44 of the molten liquid 24. From the data, and considering the relation with the oxygen dissolved into the crucible 12, the oxygen concentration in the molten liquid 24 can be found and the amount of oxygen taken into a single silicon crystal 40 pulled up from the molten liquid 24 can be figured out.Type: GrantFiled: January 22, 1999Date of Patent: December 21, 1999Assignees: Komatsu Electronic Metals Co., Ltd., Mitsubishi Materials Silicon Corporation, Kagaku Gijutsu Sinkou Jigyo Dan, Toshiba Ceramics Co., Ltd.Inventors: Susumu Maeda, Keisei Abe, Kazutaka Terashima, Hideo Nakanishi
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Patent number: 5973650Abstract: An antenna apparatus is disclosed which comprises: a printed circuit board; a first loop antenna, arranged along one side of the printed circuit board, wound more than one turn; a second loop antenna, arranged along the side, wound less than one turn, one end of the first loop antenna and one end of the second loop antenna being fixed to a first area on the printed circuit board near the side; and a capacitor, fixed to a second area of the printed circuit board remote from the first area near the side, having one end connected to another end of the first loop antenna and another end connected to another end of the second loop antenna. In the antenna apparatus, the first and second loop antennas may comprise conductive rods. In the antenna apparatus, the first and second loop antennas may comprise stripe conductive plates.Type: GrantFiled: November 3, 1997Date of Patent: October 26, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Hideo Nakanishi
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Patent number: 5949830Abstract: In a direct conversion receiver with an AFC function comprising a local oscillation circuit constituted by a synthesizer, the local oscillation frequency is prevented from radiating as an interfere wave against the receiver per se so as not to reduce the reception characteristic, and it is made possible to reduce the value of the multiplication factor N of a multiplier in the synthesizer without making the frequency of a VCO per se high. Specifically, a first local oscillation signal 12 obtained by multiplying an output frequency F.sub.X of a reference crystal oscillation circuit portion 8 of a synthesizer circuit section 7 by M by a multiplier 11 is mixed with an FSK modulation signal 1 in a first mixer 4. In a second mixer 5, the thus mixed signal is further mixed with a second local oscillation signal 13 obtained by multiplying an output frequency F.sub.V of a synthesizer 9 by N by a multiplier 10.Type: GrantFiled: June 20, 1997Date of Patent: September 7, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Hideo Nakanishi
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Patent number: 5899549Abstract: A liquid-crystal display for use in small-sized transceivers is provided. This display includes a signal processing circuit processing a radio signal received by an antenna, a liquid-crystal driver converting an output signal from the signal processing circuit into a display control signal, a liquid-crystal plate responsive to the display control signal from liquid-crystal driver to display information thereon carried by the radio signal, an electroluminescence plate disposed between the liquid-crystal plate and the liquid-crystal driver, illuminating a bottom area of the liquid-crystal plate opposite to the display area, and a conductive shield member attached to the bottom area of the electroluminescence plate, blocking conductive coupling of the liquid-crystal plate and the liquid-crystal driver for screening the antenna from noise interfering with radio reception.Type: GrantFiled: February 7, 1997Date of Patent: May 4, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideo Nakanishi, Toshiyuki Tsumura
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Patent number: 5778311Abstract: An intermittent operation receiver comprises a receiving circuit 8 receiving one of plural intermittent receiving operation information and data transmitted from a base station and generating its demodulated signal 24, a PLL circuit 7 including a voltage-controlled oscillator 5 and generating two kinds of local signals 25 and 26 different 90.degree. in their phases which are sent to the receiving circuit 8 to process the input signal, and a data processing section 14 which receives the demodulated signal 24 from the receiving circuit 8, decodes the data to generate a first intermittent cycle generation timing signal 18 including a period corresponding to the cycle information of the intermittent receiving operation, and sends this first intermittent cycle generation timing signal 18 to receiving circuit 8 to control the power supply from its power source unit.Type: GrantFiled: June 28, 1996Date of Patent: July 7, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Hideo Nakanishi
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Patent number: 5728501Abstract: A charge controller for a toner, containing a polymer of an ethylenically unsaturated monomer, where the polymer has a dielectric loss tangent (tan .delta.) at 100 kHz of 0.008 to 0.3 and a water absorbency of at most 10% by weight, and selected from the group consisting of:(1) a polymer (A1) having units resulting from a monomer (1) having an aromatic ring substituted with at least one electron-attracting group (X) selected from the group consisting of halogen, a nitro group and a cyano group; and(2) a copolymer (A2) of a monomer (2) having an organic acid group or salt thereof, with one or more copolymerizable monomers,a toner binder and toner containing the same are provided which give excellent properties with respect to electrostatic charge amount, charging rate and environmental stability, as well as providing an essentially colorless charge controller containing no metal and improved dispersing properties and transparency.Type: GrantFiled: March 22, 1996Date of Patent: March 17, 1998Assignee: Sanyo Chemical Industries, Ltd.Inventors: Hideo Nakanishi, Tohru Ohama, Naoki Takase, Akira Kodani, Munekazu Satake
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Patent number: 5492229Abstract: A vertical boat for holding a plurality of semiconductor wafers comprising two end members (2) positioned at the top and the bottom of the vertical boat, and a plurality of support members (3,4,5,6,104) vertically mounted on the end members (2) for supporting the wafers, wherein each support member (3,4,5,6,104) is formed by a plate-like member having a series of slits (9,10,7,8,108) formed thereon in such a manner that a plurality of support arms are defined by the slits (9,10,7,8,108) at a predetermined interval, each support arm having a support projection (11,12,13,14,112) formed at the end thereof, and wherein the inner portions (P) of the wafer (1) is to be supported by the support projections (11,12,13,14,112) whereas the periphery of the wafer (1) does not contact the arms of the support members (3,4,5,6,104).Type: GrantFiled: November 12, 1993Date of Patent: February 20, 1996Assignee: Toshiba Ceramics Co., Ltd.Inventors: Takashi Tanaka, Jun Yoshikawa, Eiichi Toya, Atsuo Kitazawa, Kazunori Meguro, Tatsuo Nozawa, Yutaka Ishizuka, Yoshiyuki Watanabe, Masaru Seino, Hideo Nakanishi
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Patent number: 5460915Abstract: A charge controller for an electrophotographic toner is disclosed which comprises a graft or block copolymer comprising:(a) a polymer moiety having an alkyl group containing 6-50 carbon atoms and a carboxyl group, said moiety being selected from the group consisting of: a moiety of a polymer or a copolymer containing at least 5 mol. % of monomer units of a monoalkyl ester of an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid, containing 6-50 carbon atoms in the alkyl group; and a moiety of a copolymer containing 5-75 mol. % of monomer units of a carboxylic group-containing .alpha.,.beta.-ethylenically unsaturated monomer, and 6-80 mol. % of monomer units of an ethylenically unsaturated monomer having an alkyl group containing 6-50 carbon atoms; and(b) a polymer moiety, bound graft-wise or block-wise thereto, said moiety (b) being selected from the group consisting of a styrenic polymer moiety, and a polyester moiety.Type: GrantFiled: June 14, 1994Date of Patent: October 24, 1995Assignee: Sanyo Chemical Industries, Ltd.Inventors: Hideo Nakanishi, Tohru Ohama, Hiroyuki Ikeda, Naoki Takase, Akira Kodani
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Patent number: 5147750Abstract: Polymers, comprising block-wise or/and graft-wise linked (A) a polymer having amino group-containing monomer units and (B) at least one polymer such as styrenic polymers, olefinic polymers, polyesters, epoxy resins and polyurethanes, are useful as charge controllers for electrophotographic toners.Type: GrantFiled: June 13, 1990Date of Patent: September 15, 1992Assignee: Sanyo Chemical Industries, Ltd.Inventor: Hideo Nakanishi
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Patent number: 5075353Abstract: This invention relates to a molding material composed of a liquid thermosetting resin composition containing styrene monomer as a cross-linking component thereof and chopped glass fiber strands which can give a large molded product having high impact strength in high productivity and a method for manufacture thereof characterized by using glass fiber strands such that the number of glass filaments used in the glass fiber strands falls in the range of 600 to 1,400 per strand, the amount of a binder deposited on the glass fibers is not less than 1.0% by weight, and the percentage of styrene monomer insoluble binder falls in the range of 40 to 90% by weight.Type: GrantFiled: December 12, 1988Date of Patent: December 24, 1991Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Terukuni Hashimoto, Hideo Nakanishi, Shigehiro Yamamoto, Toshio Iga
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Patent number: 4148250Abstract: A means provided for exhausting vapors from a cooker for steam cooking rice and/or other foodstuffs contained in a cooking pot wherein the water in the cooker is heated by a heater provided within the main body of the cooker. The means includes a cylindrical member which forms a hole in an inner lid of the cooking pot, which hole communicates with the interior of the cooking pot, an annular wall around said cylindrical member, an annular vapor guide member suspended from the outer lid down between said cylindrical member and annular wall, back flow holes provided in the inner lid at the place inside the guide member, and exhaust openings provided outside the outer lid. The means not only collectively exhausts the vapors to be generated during cooking from the exhaust openings but also prevents liquid from the rice being boiled over.Type: GrantFiled: July 1, 1977Date of Patent: April 10, 1979Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasumasa Miki, Hideo Nakanishi