Patents by Inventor Masao Nakamura
Masao 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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Patent number: 8637604Abstract: A block copolymer comprising at least one polymer block A comprising conjugated diene monomer units, and at least one polymer block B comprising conjugated diene monomer units and aromatic vinyl monomer units. This block copolymer is characterized in that (1) the polymer block A has a glass transition temperature of ?88° C. to ?45° C., (2) the polymer block B has a glass transition temperature of 30° C. to 90° C., (3) the content of aromatic vinyl monomer units in the whole block copolymer is 3-52 wt. %, (4) the aromatic vinyl block ratio in the whole block copolymer is smaller than 69 wt. %, and (5) the viscosity of a 5 wt. % solution of the block copolymer in styrene is 30-80 mPa·s. The block copolymer is useful as a resin modifier.Type: GrantFiled: July 27, 2006Date of Patent: January 28, 2014Assignee: Zeon CorporationInventors: Masao Nakamura, Kazuya Ito, Hidenori Yamagishi
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Publication number: 20130223967Abstract: A hydraulic excavator includes: a revolving upperstructure; a working device attached to the revolving upperstructure; an operator's cab which has a rear window and is disposed in a front position of the revolving upperstructure; and an engine room which is disposed in a rear position adjacent to the operator's cab and has a ceiling part made of a cover member. A part of the cover member located near the operator's cab is made of an inclined surface part having a shape whose height gradually increases toward the rear of a vehicle body with the vicinity of a lower end part of the rear window as a start point during a predetermined distance immediately after the operator's cab. The height of the start point of the inclined surface part may be set equal to or lower than the height of the lower end part of the rear window.Type: ApplicationFiled: October 28, 2011Publication date: August 29, 2013Applicant: Hitachi Construction Machinery Co., Ltd.Inventors: Tsuyoshi Shimizu, Masao Nakamura, Hiroshi Kumagai
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Publication number: 20130223966Abstract: A revolving frame is provided with left and right vertical plates installed upright on a bottom plate, and a front plate arranged on a front side of the bottom plate and connecting the left and right vertical plates to each other. A left reinforcing plate is provided at a corner where the left vertical plate and the front plate cross each other, and a right reinforcing plate is provided at a corner where the right vertical plate and the front plate cross each other. As a result, the corner portion where the left vertical plate and the front plate cross each other is reinforced by the left reinforcing plate while a left side closed space (LS) is formed, and the corner portion where the right vertical plate and the front plate cross each other is reinforced by the right reinforcing plate while a right side closed space (RS) is formed.Type: ApplicationFiled: November 10, 2011Publication date: August 29, 2013Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventor: Masao Nakamura
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Patent number: 8240415Abstract: An intermediate plate member (22) having a plate thickness equal to or less than that of a door body (19) is provided between the door body (19) and a reinforcing member (24) constituting a right side door (18). The door body (19) and the intermediate plate member (22) are jointed by spot welding, and the intermediate plate member (22) and the reinforcing member (24) are jointed by fillet welding, thereby jointing the reinforcing member (24) through the intermediate plate member (22) on the inner side surface (19A) of the door body (19). Through the use of the intermediate plate member (22), the generation of distortion in the door body (19) is reduced and the outer appearance of the right side door (18) is maintained in good condition.Type: GrantFiled: April 21, 2009Date of Patent: August 14, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Kazumasa Okada, Masao Nakamura, Makoto Matsushita
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Patent number: 8233064Abstract: In a solid-state image pickup apparatus 100 of the invention, a transparent member 4 that covers a light receiving section of a solid-state image sensing device 2 is located within an opening 10 of a wiring board 1. The solid-state image sensing device 2 is adhered to the backside of the wiring board 1 via a conductive member 5 and also sealed to the backside of the wiring board 1 with an encapsulation resin 6 formed around the solid-state image sensing device 2. Furthermore, a through-hole 11 passing through the wiring board 1 in a thickness direction is formed on outside of the opening 10 of the wiring board 1, and the through-hole 11 is filled with the encapsulation resin 6. This configuration provides the solid-state image pickup apparatus 100 in which the encapsulation resin 6 can be easily injected to the surrounding area of the solid-state image sensing device 2.Type: GrantFiled: December 2, 2008Date of Patent: July 31, 2012Assignee: Sharp Kabushiki KaishaInventor: Masao Nakamura
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Patent number: 8215434Abstract: A counterweight (8) is attached to the rear side of a revolving frame (6), and an engine (9) is mounted in a transverse direction in front of the counterweight (8). A heat exchanger (12) is located on the left side of the engine (9), and a left-hand side door (17) is located on the left side of the heat exchanger (12). An air cleaner (24) is accommodated in an air cleaner chamber (19) which is provided in a space enclosed by the counterweight, left-hand side door and heat exchanger. In this state, a casing (25) of the air cleaner has an opening portion (25A) to permit insertion and extraction of a filter element (26). Thus, at the time of a maintenance work for the air cleaner, one can draw out the filter element from the opening portion of the casing simply by opening the left-hand side door.Type: GrantFiled: April 9, 2008Date of Patent: July 10, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Makoto Matsushita, Masao Nakamura, Kazuhisa Tamura
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Patent number: 8153727Abstract: A block copolymer comprised of a polymer block or blocks (A) comprising conjugated diene monomer units and a polymer block or blocks (B) comprising conjugated diene monomer units and aromatic vinyl monomer units, wherein (1) the polymer block or blocks (A) have a glass transition temperature in the range of ?88 to ?45° C., (2) the polymer block or blocks (B) have a glass transition temperature in the range of 30 to 90° C., (3) the content of aromatic vinyl monomer units in the block copolymer is in the range of 30 to 52% by weight based on the total weight of the block copolymer, (4) the block copolymer has an aromatic vinyl block ratio of smaller than 69% by weight based on the total weight of the block copolymer, and (5) the viscosity of a 5% by weight solution of the block copolymer in styrene is at least 5 mPa·s but smaller than 30 mPa·s. This block copolymer is used as a modifier for resin.Type: GrantFiled: May 8, 2006Date of Patent: April 10, 2012Assignee: Zeon CorporationInventors: Kazuya Ito, Hidenori Yamagishi, Masao Nakamura
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Publication number: 20110253204Abstract: A solar cell 1 has a p-n junction structure between a first solid material layer 3 comprising an insulator or a semiconductor and a second solid material layer 5 comprising an insulator or a semiconductor of a type different from the type of the first solid material layer 3, in which structure a Mott insulator or a Mott semiconductor is used as a solid material of at least one of the layers.Type: ApplicationFiled: April 7, 2011Publication date: October 20, 2011Inventors: Wataru Koshibae, Masao Nakamura, Masashi Kawasaki, Naoto Nagaosa, Yasujiro Taguchi, Yoshinori Tokura, Nobuo Furukawa
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Patent number: 7919558Abstract: A rubber composition containing (i) a conjugated diene-based rubber gel having a toluene swelling index of 16 to 70, (ii) a diene-based rubber such as natural rubber, polyisoprene rubber, aromatic vinyl-conjugated diene copolymer rubber and/or polybutadiene rubber, and (iii) an optional carbon black and/or silica and (a) a pneumatic tire using this composition as a high hardness reinforcing layer extending from a bead along a tire sidewalls, in which the fluidity and dimensional stability at the time of extrusion are improved, while maintaining a sufficient hardness of a high hardness reinforced rubber, (b) a pneumatic tire using this composition as two ends of a tire tread extrudate, maintaining a flex fatigue of the two ends of the tread, in which the extrudability and extrusion dimensional stability are improved and (c) a pneumatic tire using the composition as a 1.Type: GrantFiled: February 22, 2005Date of Patent: April 5, 2011Assignees: The Yokohama Rubber Co., Ltd., Zeon CorporationInventors: Naoya Amino, Misao Hiza, Takashi Shirokawa, Masao Nakamura, Koichi Endo
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Publication number: 20110066584Abstract: The program makes a computer function as a significance evaluation unit including a statistical equation storage unit which stores algorithms of a plurality of statistical methods, a significance probability calculation unit which calculates significance probability for each of the evaluation items with the algorithm read out from the statistical equation database based on an input signal indicating one statistical method selected, a significance determination unit which determines a magnitude relationship between the significance probability and a significance level which is previously set or input and gives significance information to each of the evaluation items, and an evaluation result output unit which makes a display device output a matrix table in which the same number of cells as that of the evaluation items are provided such that each cell is corresponded to each evaluation item and cells of n columns or n rows are arranged.Type: ApplicationFiled: May 3, 2010Publication date: March 17, 2011Inventor: Masao Nakamura
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Publication number: 20100327502Abstract: To provide a vibration-damping support device that requires a smaller space for its own installation. A vibration-damping support device is provided with a rubber mount, a support member supporting the rubber mount thereon, and stoppers. The rubber mount is to be attached to a mounting platform for an object which is installed in a hydraulic excavator and is to be damped, for example, an engine that vibrates in vertical and horizontal directions, and has an elastic member of a rubber or like member for absorbing vibrations of the engine. The support member can be, for example, a support bracket to be fixedly secured on an unillustrated revolving frame. The stoppers are arranged integrally with the support bracket, and prevent an excessive deformation of the elastic member of the rubber mount under vibrations of the engine. The stopper is arranged on an upper side of the support bracket, while the stopper is arranged on a lower side of the support bracket.Type: ApplicationFiled: February 20, 2009Publication date: December 30, 2010Inventor: Masao Nakamura
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Publication number: 20100242313Abstract: An intermediate plate member (22) having a plate thickness equal to or less than that of a door body (19) is provided between the door body (19) and a reinforcing member (24) constituting a right side door (18). The door body (19) and the intermediate plate member (22) are jointed by spot welding, and the intermediate plate member (22) and the reinforcing member (24) are jointed by fillet welding, thereby jointing the reinforcing member (24) through the intermediate plate member (22) on the inner side surface (19A) of the door body (19). Through the use of the intermediate plate member (22), the generation of distortion in the door body (19) is reduced and the outer appearance of the right side door (18) is maintained in good condition.Type: ApplicationFiled: April 21, 2009Publication date: September 30, 2010Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Kazumasa Okada, Masao Nakamura, Makoto Matsushita
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Patent number: 7700693Abstract: A conjugated diene rubber composition comprising (A) 5-95 wt. % of a conjugated diene rubber having a structure such that at least three conjugated diene polymer chains are bonded together through a specific polyorganosiloxane having groups containing alkylene glycol repeating units and (B) 95-5 wt. % of a conjugated diene rubber having reacted with a compound having in the molecule a functional group selected from >C?O, >C?S, amino, imino, epoxy, pyridyl, alkoxyl and halogeno. This rubber composition gives, when silica is incorporated therein, a vulcanizable rubber composition having good processability and giving a rubber vulcanizate exhibiting sufficiently reduced heat build up, and having good wet-grip property and good abrasion resistance.Type: GrantFiled: September 1, 2004Date of Patent: April 20, 2010Assignee: Zeon CorporationInventors: Takeshi Karato, Masao Nakamura, Koichi Endo
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Publication number: 20100025136Abstract: A counterweight (8) is attached to the rear side of a revolving frame (6), and an engine (9) is mounted in a transverse direction in front of the counterweight (8). A heat exchanger (12) is located on the left side of the engine (9), and a left-hand side door (17) is located on the left side of the heat exchanger (12). An air cleaner (24) is accommodated in an air cleaner chamber (19) which is provided in a space enclosed by the counterweight, left-hand side door and heat exchanger. In this state, a casing (25) of the air cleaner has an opening portion (25A) to permit insertion and extraction of a filter element (26). Thus, at the time of a maintenance work for the air cleaner, one can draw out the filter element from the opening portion of the casing simply by opening the left-hand side door.Type: ApplicationFiled: April 9, 2008Publication date: February 4, 2010Applicant: Hitachi Construction Machinery Co., Ltd.Inventors: Makoto Matsushita, Masao Nakamura, Kazuhisa Tamura
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Patent number: 7643608Abstract: In a method for checking for leakage from tubular batteries, when tubular batteries are fed with their respective axial centers aligned in parallel to each other to pass through a leakage check mechanism, a sealed end face of the tubular batteries is irradiated with an X-ray. In accordance with the result of analysis on whether the incident fluorescent X-ray entering a detector contains a fluorescent X-ray associated with an electrolyte component, it is determined whether the tubular batteries have leaked. A length of a detection window of the detector in a direction of feed of the tubular batteries is set to be less than a spacing between the tubular batteries. A length of the detection window oriented orthogonal to the direction of feed is set to be greater than an outer size of the cross-sectional shape of the tubular batteries oriented orthogonal to their axial center.Type: GrantFiled: November 24, 2005Date of Patent: January 5, 2010Assignee: Panasonic CorporationInventors: Hironori Yukisada, Takahito Takahashi, Masao Nakamura, Kazutoshi Okubo, Masaya Nakata
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Publication number: 20090247700Abstract: A block copolymer comprised of a polymer block or blocks (A) comprising conjugated diene monomer units and a polymer block or blocks (B) comprising conjugated diene monomer units and aromatic vinyl monomer units, wherein (1) the polymer block or blocks (A) have a glass transition temperature in the range of ?88 to ?45° C., (2) the polymer block or blocks (B) have a glass transition temperature in the range of 30 to 90° C., (3) the content of aromatic vinyl monomer units in the block copolymer is in the range of 30 to 52% by weight based on the total weight of the block copolymer, (4) the block copolymer has an aromatic vinyl block ratio of smaller than 69% by weight based on the total weight of the block copolymer, and (5) the viscosity of a 5% by weight solution of the block copolymer in styrene is at least 5 mPa·s but smaller than 30 mPa·s. This block copolymer is used as a modifier for resin.Type: ApplicationFiled: May 8, 2006Publication date: October 1, 2009Applicant: Zeon CorporationInventors: Kazuya Ito, Hidenori Yamagishi, Masao Nakamura
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Patent number: D677703Type: GrantFiled: August 27, 2012Date of Patent: March 12, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Toshiaki Nishida, Kazunori Komatsu, Hiroki Tanaka, Hiroyuki Isobe, Masao Nakamura
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Patent number: D678354Type: GrantFiled: August 27, 2012Date of Patent: March 19, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Toshiaki Nishida, Kazunori Komatsu, Hiroki Tanaka, Hiroyuki Isobe, Masao Nakamura
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Patent number: D678358Type: GrantFiled: August 27, 2012Date of Patent: March 19, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Kazuhiko Hiraoka, Tsuyoshi Shimizu, Hiroyuki Isobe, Masao Nakamura
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Patent number: D678918Type: GrantFiled: August 27, 2012Date of Patent: March 26, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Shigehisa Hagura, Kazuhiko Hiraoka, Masao Nakamura, Hiroyuki Isobe, Hiroshi Kumagai