Patents by Inventor Masaki Tamura
Masaki Tamura 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: 20060056073Abstract: Disclosed is an imaging lens that includes a first lens having a meniscus profile with a convex surface facing an object side and having a positive refractive index; an aperture diaphragm; and a second lens having a meniscus profile with a convex surface facing an image side and having a positive refractive index, wherein the first lens, the aperture diaphragm, and the second lens are arrayed in the order from the object side. The imaging lens satisfies conditional expressions 0.2<f/f1<1.0;??(1) 1.05<L/f<1.38; and??(2) n(ave)>1.Type: ApplicationFiled: August 17, 2005Publication date: March 16, 2006Applicant: Sony CorporationInventor: Masaki Tamura
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Publication number: 20060051082Abstract: Disclosed is a zoom lens with a reduced thickness and size in the depthwise direction. The zoom lens of the present invention consists of a plurality of lens groups (GR1 to GR5), so that it varies in power in response to variation in intervals between the lens groups. The zoom lens also has a prism G2 to bend the optical axis passing through the lens groups (GR1 to GR5). The last lens group G5 (counted from the object side) is composed of a negative lens group and a positive lens group, with an air layer interposed between them (arranged sequentially from the object side). The present invention also provides an imaging device equipped with an imaging element to convert the optical images formed by said zoom lens into electrical signals.Type: ApplicationFiled: September 8, 2004Publication date: March 9, 2006Applicant: Sony CorporationInventor: Masaki Tamura
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Patent number: 6992821Abstract: A variable power finder is proposed, which comprises: an objective system; an inverting system; and an ocular system, in order from object side. The third lens group of the objective system is constituted by one lens prism having at least one reflection surface, and following expressions are satisfied: f3/fw?2.5??(1) ?1.0<(R32+R31)/(R32?R31)<1.0??(2) L1/fw2?0.45 1/mm??(3) L2/fw2?0.03 1/mm??(4) where f3 is a focal distance in millimeters (mm) of third lens group, fw is a focal in mm distance at wide angle end of objective system, R31 is a curvature radius of object side lens surface of lens prism, R32 is a curvature radius of image side lens surface of lens prism, L1 is an air equivalent distance in mm from middle imaging surface to object side lens surface of lens prism, and L2 is a distance in mm from middle imaging surface to image side lens surface of lens prism.Type: GrantFiled: March 21, 2005Date of Patent: January 31, 2006Assignee: Sony CorporationInventor: Masaki Tamura
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Patent number: 6985289Abstract: A variable power finder is proposed, which comprises: an objective system; an inverting system; and an ocular system, in order from object side. The third lens group of the objective system is constituted by one lens prism having at least one reflection surface, and following expressions are satisfied: f3/fw?2.5??(1) ?1.0<(R32+R31)/(R32?R31)<1.0??(2) L1/fw2?0.45 1/mm??(3) L2/fw2?0.03 1/mm??(4) where f3 is a focal distance of in millimeters (mm) third lens group, fw is a focal distance in mm at wide angle end of objective system, R31 is a curvature radius of object side lens surface of lens prism, R32 is a curvature radius of image side lens surface of lens prism, L1 is an air equivalent distance in mm from middle imaging surface to object side lens surface of lens prism, and L2 is a distance in mm from middle imaging surface to image side lens surface of lens prism.Type: GrantFiled: March 21, 2005Date of Patent: January 10, 2006Assignee: Sony CorporationInventor: Masaki Tamura
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Publication number: 20050261467Abstract: In the present invention, an episulfide compound having, in one molecule, at least one epithio structure represented by the following Formula 2: wherein R5 is C1-C10 hydrocarbylene or single bond, R6, R7 and R8 are each independently C1-C10 hydrocarbyl or hydrogen, Y is O, S, Se or Te, p is an integer from 1 to 5 and q is an integer from 0 to 5, is polymerized in the presence of a halide of a 13-16 group element of the long periodic table and/or a polymerization regulator represented by the following Formula 1: wherein R1, R2 and R3 are each C1-C10 hydrocarbyl or hydrogen, R4 is C1-C10 hydrocarbylene or single bond, X is F, Cl, Br, I, As, SH, OH, C1-C10 alkoxyl, C1-C10 alkylthio, or C1-C10 mercaptoalkylthio, and m is an integer from 1 to 5, to produce a cured resin suitable as an optical material. By using the polymerization regulator, the polymerization rate of the episulfide compound can be suitably regulated to obtain a cured resin with less defect.Type: ApplicationFiled: July 27, 2005Publication date: November 24, 2005Inventors: Masaki Tamura, Takahiro Matsui, Masanori Shimuta, Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi, Hiroyuki Okada
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Publication number: 20050162734Abstract: A variable power finder is proposed, which comprises: an objective system; an inverting system; and an ocular system, in order from object side. The third lens group of the objective system is constituted by one lens prism having at least one reflection surface, and following expressions are satisfied: f3/fw?2.5 ??(1) ?1.0<(R32+R31)/(R32?R31)<1.0 ??(2) L1/fw2?0.45 ??(3) L2/fw2?0.03 ??(4) where f3 is a focal distance of third lens group, fw is a focal distance at wide angle end of objective system, R31 is a curvature radius of object side lens surface of lens prism, R32 is a curvature radius of image side lens surface of lens prism, L1 is an air equivalent distance from middle imaging surface to object side lens surface of lens prism, and L2 is a distance from middle imaging surface to image side lens surface of lens prism.Type: ApplicationFiled: March 21, 2005Publication date: July 28, 2005Applicant: Sony CorporationInventor: Masaki Tamura
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Publication number: 20050162735Abstract: A variable power finder is proposed, which comprises: an objective system; an inverting system; and an ocular system, in order from object side. The third lens group of the objective system is constituted by one lens prism having at least one reflection surface, and following expressions are satisfied: f3/fw?2.5??(1) ?1.0<(R32+R31)/(R32?R31)<1.0??(2) L1/fw2?0.45??(3) L2/fw2?0.03??(4) where f3 is a focal distance of third lens group, fw is a focal distance at wide angle end of objective system, R31 is a curvature radius of object side lens surface of lens prism, R32 is a curvature radius of image side lens surface of lens prism, L1 is an air equivalent distance from middle imaging surface to object side lens surface of lens prism, and L2 is a distance from middle imaging surface to image side lens surface of lens prism.Type: ApplicationFiled: March 21, 2005Publication date: July 28, 2005Applicant: Sony CorporationInventor: Masaki Tamura
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Publication number: 20050052756Abstract: A viewfinder of a small size and a small thickness is implemented to achieve a miniaturization and reduction in thickness of an image pickup apparatus. The viewfinder includes an eyepiece system for expanding an image displayed on an image display element so as to be visually observed. The eyepiece includes a first single lens disposed adjacent to the image display element and having a negative refractive power and a second single lens disposed remotely from the image display element and having a positive refractive power. A reflecting member is disposed between the first single lens and the second single lens for diverting an optical axis to a predetermined direction.Type: ApplicationFiled: August 26, 2004Publication date: March 10, 2005Applicant: Sony CorporationInventors: Masaki Tamura, Yoshito Iwasawa
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Patent number: 6862103Abstract: There is disclosed a network print system which aims at printing high-quality image data of, e.g., a form or the like generated using a Web browser. When a form image is displayed on a Web browser of a client, and its print process is instructed, the instruction is sent to a server. The server searches a form template storage unit for an appropriate template, merges it with data by an image generation unit, converts the merged data into PDL data by a print output unit, and prints the converted data as a high-quality image from a printer.Type: GrantFiled: January 28, 2000Date of Patent: March 1, 2005Assignee: Canon Kabushiki KaishaInventors: Kiyotaka Miura, Tsunehiro Tsukada, Yasuyuki Tsukui, Akira Ueda, Takashi Matsushita, Masaki Tamura
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Publication number: 20050041284Abstract: A variable power finder is proposed, which comprises: an objective system; an inverting system; and an ocular system, in order from object side. The third lens group of the objective system is constituted by one lens prism having at least one reflection surface, and following expressions are satisfied: (1) f3/fw?2.5 (2) ?1.0<(R32+R31)/(R32?R31)<1.0 (3) L1/fw2?0.45 (4) L2/fw2?0.03 where f3 is a focal distance of third lens group, fw is a focal distance at wide angle end of objective system, R31 is a curvature radius of object side lens surface of lens prism, R32 is a curvature radius of image side lens surface of lens prism, L1 is an air equivalent distance from middle imaging surface to object side lens surface of lens prism, and L2 is a distance from middle imaging surface to image side lens surface of lens prism.Type: ApplicationFiled: July 16, 2004Publication date: February 24, 2005Applicant: Sony CorporationInventor: Masaki Tamura
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Publication number: 20050024677Abstract: There is disclosed a network print system which aims at printing high-quality image data of, e.g., a form or the like generated using a Web browser. When a form image is displayed on a Web browser of a client, and its print process is instructed, the instruction is sent to a server. The server searches a form template storage unit for an appropriate template, merges it with data by an image generation unit, converts the merged data into PDL data by a print output unit, and prints the converted data as a high-quality image from a printer.Type: ApplicationFiled: August 24, 2004Publication date: February 3, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Kiyotaka Miura, Tsunehiro Tsukada, Yasuyuki Tsukui, Akira Ueda, Takashi Matsushita, Masaki Tamura
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Publication number: 20050018249Abstract: There is disclosed a network print system which aims at printing high-quality image data of, e.g., a form or the like generated using a Web browser. When a form image is displayed on a Web browser of a client, and its print process is instructed, the instruction is sent to a server. The server searches a form template storage unit for an appropriate template, merges it with data by an image generation unit, converts the merged data into PDL data by a print output unit, and prints the converted data as a high-quality image from a printer.Type: ApplicationFiled: August 24, 2004Publication date: January 27, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Kiyotaka Miura, Tsunehiro Tsukada, Yasuyuki Tsukui, Akira Ueda, Takashi Matsushita, Masaki Tamura
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Publication number: 20040180128Abstract: The present invention provides a method for producing a soymilk curd comprising steps of: adding a protein cross-linking enzyme into acid-treated soymilk adjusted at pH 5.4 to 6.4 by adding an acid to the soymilk; allowing proteins in the soymilk to form cross-links by maintaining the temperature at 20 to 60° C.; and allowing the cross-linked and acid-treated soymilk to coagulate by maintaining the temperature at 70 to 90° C. The present invention also provides a method for producing a soymilk curd comprising steps of: adding a protein cross-linking enzyme and sugars into acid-treated soymilk adjusted at pH 5.4 to 6.4 by adding an acid to the soymilk; allowing proteins in the soymilk to form cross-links by maintaining the temperature at 20 to 60° C.; and allowing the cross-linked and acid-treated soymilk to coagulate by maintaining the temperature at 70 to 90° C.Type: ApplicationFiled: March 11, 2004Publication date: September 16, 2004Inventors: Takaaki Takebe, Nozomi Adachi, Masaki Tamura, Yoichi Katagiri
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Patent number: 6762250Abstract: The present invention relates to a polycarbonate resin composition comprising (A) 100 parts by weight of a polycarbonate resin and (B) 0.001 to 20 parts by weight of a siloxane compound which is a polyorganosiloxane having such a structure that at least (1) an aromatic hydrocarbon group, (2) an aliphatic or aromatic organic group having at least one carboxylic acid ester linkage, ether linkage or mixture thereof, and (3) a phosphorus atom-containing group, are bonded to the silicon atoms therein.Type: GrantFiled: June 4, 2003Date of Patent: July 13, 2004Assignee: Mitsubishi Engineering-Plastics CorporationInventors: Satoshi Kanayama, Kenichi Narita, Masaki Tamura
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Publication number: 20040054116Abstract: The present invention relates to a polycarbonate resin composition comprising (A) 100 parts by weight of a polycarbonate resin and (B) 0.001 to 20 parts by weight of a siloxane compound which is a polyorganosiloxane having such a structure that at least (1) an aromatic hydrocarbon group, (2) an aliphatic or aromatic organic group having at least one carboxylic acid ester linkage, ether linkage or mixture thereof, and (3) a phosphorus atom-containing group, are bonded to the silicon atoms therein.Type: ApplicationFiled: June 4, 2003Publication date: March 18, 2004Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Satoshi Kanayama, Kenichi Narita, Masaki Tamura
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Publication number: 20030171533Abstract: In the present invention, an episulfide compound having, in one molecule, at least one epithio structure represented by the following Formula 2: 1Type: ApplicationFiled: December 6, 2002Publication date: September 11, 2003Inventors: Masaki Tamura, Takahiro Matsui, Masanori Shimuta, Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi, Hiroyuki Okada
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Patent number: 6442985Abstract: A lock apparatus which can be locked or unlocked by an electronic key or mechanical key, includes a cylinder casing, a sleeve disposed rotatably inside the cylinder casing, a key cylinder disposed rotatably inside the sleeve and in which a mechanical key can be inserted, a tumbler disposed on the key cylinder and which the mechanical key can engage, a key cylinder lock actuator for locking or unlocking a rotation of the sleeve with respect to the cylinder casing and a control unit disposed on the key cylinder side for carrying out transmission and reception of electronic signal for verifying IDs. When, as a result of the ID verification, the ID of the control unit and the ID of the electronic key coincide with each other, the rotation of the sleeve with respects to the cylinder casing is released. Also, when the tumbler engages the sleeve, the key cylinder is rotatable with the sleeve by operating a key cylinder operating portion.Type: GrantFiled: June 7, 2000Date of Patent: September 3, 2002Assignees: Nissan Motor Co., Ltd., Alpha CorporationInventors: Yoshio Watanuki, Masaki Tamura, Tetsuyuki Tsukano, Shigeo Chiba
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Patent number: 5945796Abstract: Disclosed is a power window control apparatus which is enhanced in the precision of judging when a foreign matter is caught by a vehicle window in its closing stroke, and is capable of preventing detection errors when the foreign matter is caught by. Such apparatus comprises a first gear for transmitting rotation of a motor, a second gear for driving up or down the vehicle window, an encoder for converting the rotational angle of the motor into a pulse signal, calculating section for canceling fluctuations of the pulse signal due to engagement of the first and second gears, and calculating the frequency value of the pulse signal, and judging section for judging that a foreign matter is caught by the vehicle window when the frequency value calculated by the calculating means is equal to or exceeds a specified reference value.Type: GrantFiled: May 28, 1998Date of Patent: August 31, 1999Assignee: Nissan Motor Co., Ltd.Inventors: Yoshiharu Ohmori, Masaki Tamura
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Patent number: 5304062Abstract: A prosthetic denture precursor includes at least one artificial tooth having a root portion; and a photopolymerizable denture base material holding the root portion of the at least one tooth, the photopolymerizable denture base material being deformable so that a dentally operative position of the at least one tooth in the denture precursor is adjustable, the photopolymerizable denture base material irreversibly hardening upon exposure to light so that the at least one tooth is rigidly fixed to the hardened denture base material. A method for manufacturing and using the precursor is described. This method simplifies conventional procedures of making a denture device by omitting steps of making a wax denture.Type: GrantFiled: September 30, 1992Date of Patent: April 19, 1994Assignee: UBE Industries, Ltd.Inventors: Yoshihiro Saitoh, Masaki Tamura, Norikazu Kitamura
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Patent number: 4676517Abstract: A fuel tank vent pipe is disposed in part on the upper side of a rear floor panel and passes through openings formed in the rear floor panel and a wheel house inner for connection with a fuel tank and an inlet end of a filler neck. A receptacle-like protector unit encloses a space which is sealingly separated from an adjacent space above the rear floor panel. The aforementioned part of the vent pipe is disposed in the space enclosed by the protector unit. The filler neck has a portion bent rearwardly so as to pass under a rear cross member at its bent-up portion.Type: GrantFiled: September 19, 1986Date of Patent: June 30, 1987Assignee: Nissan Motor Co., Ltd.Inventor: Masaki Tamura