Patents by Inventor Masahiko Nakamura
Masahiko Nakamura 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: 20100178789Abstract: There is provided a connector that allows easy engagement even when visual judgment is not possible and that has superior durability as well. In a connector for connecting a first connecting cable connected to one end of a socket and a second connecting cable connected to one end of a plug, through engagement between the socket and the plug, the socket includes a cutout portion formed by cutting away at least one portion from one opening of a cylinder along the peripheral direction thereof, the cutout portion having a V-shape at its deepest portion, a first guiding portion projecting from at least one portion of the opening along the peripheral direction, the first guiding portion having a substantial V-shape at its leading end, and a retaining portion to be retained to a lateral face of the cylinder at the time of engagement with the plug, thus retaining this engagement.Type: ApplicationFiled: January 8, 2010Publication date: July 15, 2010Applicant: HOSIDEN CORPORATIONInventors: Yasuhiro Ohmori, Masahiko Nakamura
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Patent number: 7727698Abstract: Disclosed is an image forming method comprising developing a latent electrostatic image formed on the surface of a latent electrostatic image bearing body by a developer borne and conveyed by a developer bearing body which is brought into contact with a developer layer control member to control an amount of the developer on the surface of the developer bearing body through a nonmagnetic single-component development system, wherein an acid value (SAV) of the surface of the developer and a total acid value (TAV) of the developer meet the following requirements: 1<SAV/TAV?5 and 5?TAV?25, and a ratio of a mass average particle size (d50, ?m) of the developer to a surface roughness (Ra, ?m), d50/Ra being in a range of 0.5 to 3.0 and an average spacing (Sm) between protruding peaks of the developer bearing body being in a range of 20 to 200 ?m.Type: GrantFiled: June 19, 2007Date of Patent: June 1, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Masahiko Nakamura, Masahiro Anno, Kaori Soeda, Tomoko Mine, Kenichi Onaka
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Publication number: 20100055976Abstract: The present invention provides a connection structure of a circuit board and a connecting device of the present invention including: a connecting device electrically and mechanically connectable to an electronic component; and a circuit board having a surface to mount the connecting device thereon. The connecting device has a locking piece for attaching the connecting device to the surface of the circuit board. The circuit board has an elongated locking hole for receiving the locking piece. The locking piece is adapted to be locked at a lip of the locking hole by sliding or turning the locking piece in a predetermined direction inside the locking hole.Type: ApplicationFiled: August 27, 2009Publication date: March 4, 2010Applicant: HOSIDEN CORPORATIONInventors: Yasuhiro OHMORI, Masahiko NAKAMURA
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Publication number: 20090273535Abstract: An antenna apparatus includes: a substrate; an RF ground conductor which is branched to extend in at least two directions and at least a part of which is formed on a surface of the substrate, the RF ground conductor functioning as an antenna ground plane; and an antenna portion, one end of which is connected to the RF ground conductor.Type: ApplicationFiled: June 29, 2007Publication date: November 5, 2009Inventors: Sung-Gyoo Lee, Masahiko Nakamura, Eiichirou Hirose, Koji Yanao
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Patent number: 7598013Abstract: A toner comprising: (i) toner particles, each toner particle comprising a binder resin and a colorant; and (ii) an oxymonocarboxylic acid or a salt thereof, wherein a total content of the oxymonocarboxylic acid or the salt thereof in the toner is 10 to 173 ppm based on the total weight of the toner.Type: GrantFiled: January 19, 2007Date of Patent: October 6, 2009Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Masahiko Nakamura, Kaori Soeda, Tomoko Mine, Kenichi Onaka
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Publication number: 20090239171Abstract: It is to provide a toner which can form an image of high image quality exhibiting high resolution wherein a final visible image exhibits high image density and high thin-line reproducibility even in long-term use. In a toner incorporating at least a colored particle containing a binder resin composed of a polyester resin and a colorant, and external additive particles, the toner has a degree of average circularity of 0.950-0.990, a volume based median diameter of 4.5-8.0 ?m, a volume based particle diameter dispersibility (CVVOL value) of 15-25; a metal selected from titanium, germanium, and aluminum is incorporated at a ratio of 10-1500 ppm; the above external additive particles is composed of a composite oxide incorporating a silicon atom and at least either of a titanium atom and an aluminum atom; and the existence ratio of silicon atoms in the surface thereof is higher than the existence ratio of silicon atoms in the entire part thereof.Type: ApplicationFiled: March 18, 2009Publication date: September 24, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Masahiro ANNO, Masahiko NAKAMURA, Tsuyoshi UCHIDA, Kenichi ONAKA, Junya ONISHI, Naoya TONEGAWA
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Publication number: 20090233202Abstract: A two component developer comprising a toner and a carrier, wherein the toner includes: colored particles; and external additive particles comprising a complex oxide incorporating silicon atoms and at least one of titanium atoms and aluminum atoms, and a surface existing ratio of the silicon atoms (R2) in a surface of the external additive particles being larger than an average existing ratio of the silicon atoms (R1) in an entirety of the external additive particles, and carrier particles comprise magnetic material powder dispersed in a phenol-formaldehyde resin, and have an average of the shape coefficient SF-1 of 1.0 to 12 and an average of the shape coefficient SF-2 of 1.1 to 2.5, and a volume based median diameter of from 10 to 100 ?m.Type: ApplicationFiled: March 4, 2009Publication date: September 17, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Masahiro ANNO, Masahiko NAKAMURA, Tsuyoshi UCHIDA, Kenichi ONAKA, Junya ONISHI, Naoya TONEGAWA
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Publication number: 20090233205Abstract: Provided is a two-component developer with which degradation of development is inhibited even in the case of prolonged use, and thereby a high quality image exhibiting high resolution and sufficient image density can be formed for a long duration. Also disclosed is a two-component developer possessing a carrier and a toner, wherein the carrier in which magnetic material powder is dispersed in a binder resin containing a phenol formaldehyde resin has a shape coefficient SF-1 of 1.0-1.2, a shape coefficient SF-2 of 1.1-2.5 and a volume-based median particle diameter of 10-100 ?m, and the toner possesses a colored particle and an external additive particle, wherein the external additive particle comprises a titanic acid compound and iron, and the iron content is 100-1,000 ppm, based on the titanic acid compound.Type: ApplicationFiled: March 5, 2009Publication date: September 17, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Masahiro ANNO, Masahiko NAKAMURA, Tsuyoshi UCHIDA, Kenichi ONAKA, Junya ONISHI, Naoya TONEGAWA
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Publication number: 20090208862Abstract: Provided is a method for forming an image containing the steps of: (a) forming an electrostatic latent image on an electrostatic latent image carrier; and (b) developing the electrostatic latent image by a two component developer comprising a toner and a carrier, wherein the two component developer is continually replenished in the developing step. (b); and the toner includes: colored particles.; and external additive particles comprising a complex oxide incorporating silicon atoms and at least one of titanium atoms and aluminum atoms, and a surface existing ratio of the silicon atoms (R2) in a surface of the external additive particles being larger than an average existing ratio of the silicon atoms (R1) in an entirety of the external additive particles.Type: ApplicationFiled: February 17, 2009Publication date: August 20, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Masahiro ANNO, Masahiko NAKAMURA, Tsuyoshi UCHIDA, Kenichi ONAKA, Junya ONISHI, Naoya TONEGAWA
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Patent number: 7556905Abstract: Provided is an electrostatic charge image developing toner usable for downsized color image forming apparatus capable of rapid print preparation with neither an influence on production cost nor use of a specific material as the toner constituent material. Also disclosed is an electrostatic charge image developing toner possessing at least a resin and a colorant, wherein the electrostatic charge image developing toner contains 12-984 ppm of a polyvalent organic acid or a salt thereof.Type: GrantFiled: November 21, 2006Date of Patent: July 7, 2009Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Masahiko Nakamura, Kaori Soeda, Tomoko Mine, Kenichi Onaka
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Publication number: 20090122661Abstract: The invention provides a disc changer including a plurality of trays which can be moved respectively in a horizontal direction, a tray driving gear unit capable of shuttling the trays between a standby position and a disc exchange position, a gear driving mechanism for driving the tray driving gear unit, a tray triggering unit capable of locking/unlocking the trays in the standby position, pushing all trays to engage with the tray driving gear unit after unlocking the trays, and driving the trays toward the disc exchange position, wherein the tray driving gear unit can be used for checking the discs by driving all trays to protrude outward from the mechanical chassis to the disc exchange position, and can drive the trays individually from the disc exchange position to the standby position from top to bottom, thereby each disc can be checked until its tray is closed.Type: ApplicationFiled: October 16, 2006Publication date: May 14, 2009Inventors: Chi Wei Lee, Mum Pew Ng, Mok Tiong Tan, Rico Paolo O. Ramirez, Masahiko Nakamura, Soon Han Poo, Lay Ghee Tan
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Publication number: 20090119691Abstract: The invention provides a disc changer including a plurality of trays which can be moved respectively in a horizontal direction, a tray driving gear unit capable of shuttling the trays between a standby position and a disc exchange position, a gear driving mechanism for driving the tray driving gear unit, a tray triggering unit capable of locking/unlocking the trays in the standby position, pushing all trays to engage with the tray driving gear unit after unlocking the trays, and driving the trays toward the disc exchange position, wherein all trays in the standby position can be unlocked and pushed to engage with the tray driving gear unit, and ejected outward from a mechanical chassis by a predetermined tray stroke, thereafter the trays are driven back to the standby position one by one, and when the last tray reaches the standby position all trays are locked.Type: ApplicationFiled: October 16, 2006Publication date: May 7, 2009Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., PANASONIC AVC NETWORKS SINGAPORE PTE. LTD.Inventors: Chi Wei Lee, Mum Pew Ng, Mok Tiong Tan, Rico Paolo O. Ramirez, Masahiko Nakamura, Soon Han Poo, Lay Ghee Tan
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Publication number: 20090098744Abstract: An adapter of the present invention is used to connect between a lead terminal of an electronic component and a contact of a connecting device. The adapter includes a first connecting part, adapted for electrical and mechanical connection to the lead terminal; a second connecting part, disposed at a spaced relation to the first connecting part in a length direction of the electronic component and connectable to the contact electrically and mechanically; and an elastically deforming part, provided between the first and second connecting parts and elastically deformable in accordance with thermal expansion deformation or thermal contraction deformation in the length direction of the electronic component.Type: ApplicationFiled: September 4, 2008Publication date: April 16, 2009Applicant: HOSIDEN CORPORATIONInventors: Yasuhiro OHMORI, Masahiko Nakamura
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Publication number: 20080110835Abstract: A method of decolorizing a colored effluent comprising (i) a colored substance; and (ii) a polyvalent carboxylic acid or a polyvalent aminocarboxylic acid, the method including the steps of: (a) controlling a hydrogen ion exponent (pH) of the colored effluent to be in a range in which two or more carboxylic acid groups in the polyvalent carboxylic acid or the polyvalent aminocarboxylic acid does not dissociate; (b) adding an inorganic metal salt to the colored effluent so as to allow the inorganic metal salt to react with the colored substance to form a precipitation in the colored effluent, and (c) eliminating the precipitation from the colored effluent.Type: ApplicationFiled: October 4, 2007Publication date: May 15, 2008Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Kaori SOEDA
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Publication number: 20080008945Abstract: A toner is disclosed. The toner comprises a vinyl resin, a colorant, and a compound represented by a formula of Compound 1, Compound 2 ion or Compound 3.Type: ApplicationFiled: June 19, 2007Publication date: January 10, 2008Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Kenichi ONAKA, Masahiko NAKAMURA, Kaori SOEDA, Tomoko MINE, Eiichi YOSHIDA
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Publication number: 20070298338Abstract: An electrophotographic image forming method is disclosed. In the method electrostatic latent image is developed by a non-magnetic single-component developing system, in which a non-magnetic single-component developer is conveyed by a developer carrying member, the developer carrying member is contacted with a developer layer regulation member for regulating an amount of the developer at the surface of the developer carrying member, and a binder resin of the developer comprises a vinyl polymer having an acid value of from about 5 to about 30 and a ratio of hydroxyl group value/acid values from about 0.3 to about 0.8.Type: ApplicationFiled: May 9, 2007Publication date: December 27, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Masahiko NAKAMURA, Masahiro ANNO, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA, Eiichi YOSHIDA
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Publication number: 20070297822Abstract: Disclosed is an image forming method comprising developing a latent electrostatic image formed on the surface of a latent electrostatic image bearing body by a developer borne and conveyed by a developer bearing body which is brought into contact with a developer layer control member to control an amount of the developer on the surface of the developer bearing body through a nonmagnetic single-component development system, wherein an acid value (SAV) of the surface of the developer and a total acid value (TAV) of the developer meet the following requirements: 1<SAV/TAV?5 and 5?TAV?25, and a ratio of a mass average particle size (d50, ?m) of the developer to a surface roughness (Ra, ?m), d50/Ra being in a range of 0.5 to 3.0 and an average spacing (Sm) between protruding peaks of the developer bearing body being in a range of 20 to 200 ?m.Type: ApplicationFiled: June 19, 2007Publication date: December 27, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Masahiro ANNO, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA
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Publication number: 20070196759Abstract: A toner comprising: (i) toner particles, each toner particle comprising a binder resin and a colorant; and (ii) an oxymonocarboxylic acid or a salt thereof, wherein a total content of the oxymonocarboxylic acid or the salt thereof in the toner is 10 to 173 ppm based on the total weight of the toner.Type: ApplicationFiled: January 19, 2007Publication date: August 23, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA
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Publication number: 20070190445Abstract: An electrostatic image developing toner is disclosed, comprising a resin and a colorant, wherein the toner contains at least one iminocarboxylic acid or its salt in an amount of from 26 to 388 ppm by mass.Type: ApplicationFiled: January 24, 2007Publication date: August 16, 2007Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Eiichi YOSHIDA, Masahiko NAKAMURA, Kaori SOEDA, Tomoko MINE, Kenichi ONAKA
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Patent number: D594593Type: GrantFiled: March 12, 2008Date of Patent: June 16, 2009Assignee: Hosiden CorporationInventors: Yasuhiro Ohmori, Masahiko Nakamura