Patents by Inventor Osamu Kawamura
Osamu Kawamura 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: 20120065266Abstract: The present invention provides an oral composition which can more effectively prevent or improve functional gastrointestinal disorders, particularly upper gastrointestinal dysfunction, specifically functional dyspepsia, and is highly safe and suitable for long-term ingestion. The oral composition of the present invention contains sodium glutamate and arginine hydrochloride at a molar ratio of 1:1. The aforementioned composition can be provided as an agent for the prophylaxis or improvement of functional gastrointestinal disorder, and can also be provided in a food or drink.Type: ApplicationFiled: September 13, 2011Publication date: March 15, 2012Applicants: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, AJINOMOTO CO. INCInventors: Shinichi Fujita, Yoshiaki Hanzawa, Noriko Yasa, Hiroyuki Matsueda, Hideaki Kihara, Motoyasu Kusano, Osamu Kawamura, Yasuyuki Shimoyama, Hiroko Hosaka, Hiroaki Zai, Atsuto Nagoshi
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Publication number: 20110289302Abstract: Overhead is significant when a timestamp according to a reference time is inserted. In view of this, there is provided an LSI which includes: a first time information conversion unit which converts, into time information of a reference time, time information from a first trace data source; a second time information conversion unit which converts, into time information of a reference time, time information from a second trace data source; and a packet merging unit.Type: ApplicationFiled: August 4, 2011Publication date: November 24, 2011Applicant: PANASONIC CORPORATIONInventors: Atsushi UBUKATA, Osamu KAWAMURA, Masataka OSAKA
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Publication number: 20100332690Abstract: A processor performance analysis device analyzes performance of a multithreaded processor in a system LSI which includes: the multithreaded processor which executes processing in parallel using multiple logical processors; a functional core which executes processing different from the processing executed by the multithreaded processor; and a memory interface which receives each access request and controls access to memory. The processor performance analysis device includes: an operational information output unit which monitors the multithreaded processor to output operational information; an access information output unit which monitors the memory interface to output memory access information; and an analysis information output unit which analyzes the performance of the multithreaded processor using the operational information and the memory access information.Type: ApplicationFiled: January 23, 2009Publication date: December 30, 2010Applicant: PANASONIC CORPORATIONInventors: Osamu Kawamura, Atsushi Ubukata
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Publication number: 20090195542Abstract: In an image processing apparatus using a read buffer, in a case where access request target data is not stored in the read buffer, the read buffer is controlled such that data corresponding to a position having coordinates, which is most distant from a position having coordinates corresponding to the access request target data, is discarded or replaced. Consequently, the image processing apparatus increases the probability that data corresponding to a position close to a position corresponding to the access request target data remains in the read buffer. Accordingly, the hit rate of the read buffer is increased. Thus, the frequency of access to an external memory can be reduced.Type: ApplicationFiled: May 10, 2007Publication date: August 6, 2009Applicant: PANASONIC CORPORATIONInventors: Osamu Kawamura, Yorihiko Wakayama
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Patent number: 7093825Abstract: A handrail for preventing dangers during walking and movements to standing or sitting positions, for correcting postures, and for simplifying walking movements of physically handicapped persons, persons with weak grip strength, and persons of low functional capacity caused by collagenosis or rheumatism. The handrail is an elongate handrail having a smooth curved line periphery. The pinky-engaging side of the handrail is protuberated in a circular shape and has a recess at a portion thereof where a fingertip of a person grasping the handrail engages a lower end vicinity position of the circular shape.Type: GrantFiled: April 3, 2003Date of Patent: August 22, 2006Assignee: Anecom Japan. Co., Ltd.Inventors: Osamu Kawamura, Masao Nakazawa
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Publication number: 20040091104Abstract: A parallel stream operation apparatus in which selecting keys for encrypting or decrypting stream data input in parallel is simplified. A plurality of paths that correspond respectively to a plurality of keys for encrypting and/or decrypting stream data are provided. Stream data received by a first interface is decrypted with a first decryption key, and stream data received by a second interface is decrypted with a second decryption key. An input stream processing unit outputs the stream data received by the first input unit to a first path corresponding to the first decryption key, and outputs the stream data received by the second input unit to a second path corresponding to the second decryption key. An operation unit decrypts the stream data from the first path with the first decryption key and the stream data from the second path with the second decryption key.Type: ApplicationFiled: August 5, 2003Publication date: May 13, 2004Inventors: Osamu Kawamura, Masataka Osaka
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Patent number: 6728271Abstract: In a stream demultiplexing device, a synchronous clock signal is supplied to a header processing unit only when a header is being inputted and processed in the header processing unit, and supplied to a payload processing unit only when a payload is being inputted and processed in the payload processing unit. By such cutting off the synchronous clock signal supply to the header processing unit and the payload processing unit while they are not active, power consumption in the stream demultiplexing device is reduced.Type: GrantFiled: August 22, 2000Date of Patent: April 27, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Osamu Kawamura, Toshiyuki Kajimura
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Patent number: 6649564Abstract: An information recording sheet of the present invention includes a substrate sheet, a variable information recording layer formed on the substrate sheet and a fixed information recording layer formed on a part of the variable information recording layer and made of a subliming dye receptor layer.Type: GrantFiled: October 26, 2000Date of Patent: November 18, 2003Assignee: Sony Chemicals Corp.Inventors: Tetsuya Abe, Takashi Nozawa, Osamu Kawamura
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Publication number: 20030193048Abstract: A handrail for preventing dangers during walking and movements to standing or sitting positions, for correcting postures, and for simplifying walking movements of physically handicapped persons, persons with weak grip strength, and persons of low functional capacity caused by collagenosis or rheumatism. The handrail is an elongate handrail having a smooth curved line periphery. The pinky-engaging side of the handrail is protuberated in a circular shape and has a recess at a portion thereof where a fingertip of a person grasping the handrail engages a lower end vicinity position of the circular shape.Type: ApplicationFiled: April 3, 2003Publication date: October 16, 2003Inventors: Osamu Kawamura, Masao Nakazawa
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Patent number: 6477606Abstract: A master device in a system including a bidirectional bus and at least one device manages whether the system is in an access state in which the master device permits an access to or from one device or a non-access state in which the master device permits an access to none of the devices. The master device drives the bidirectional bus using a predetermined current to transfer data to or from one device connected to the bidirectional bus when the system is in the access state. When the state of the system changes from the access state to the non-access state, the master device drives the bidirectional bus in order to stabilize the potential of the bidirectional bus to keep the bus potential from changing when the system is in a non-access state, thereby eliminating the need for conventional pull-up/pull-down resistors for stabilizing the bus potential during a non-access state.Type: GrantFiled: August 20, 1999Date of Patent: November 5, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Osamu Kawamura, Tomohiko Kitamura, Tsutomu Sekibe
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Patent number: 5895517Abstract: A sintered Fe alloy for a valve seat is made of a prepared powdery alloy which comprises C of from 0.3 wt. % to 1.6 wt. %, Cu of from 5 wt. % to 20 wt. %, hard particle of from 5 wt. % to 40 wt. % which consists of at least one species selected from ferroalloy, ceramic and intermetallic compound, and a balance which is a powdery Fe atomizing alloy containing at least one species of from 1 wt. % to 8 wt. % selected from Cr and Mo. The prepared powdery alloy containing the above-mentioned component and content is subject to a press forming process by a compression molding to form a green compact body which is then sintered. The sintered Fe alloy has a high thermal conductivity, a high strength at a high temperature and an excellent abrasion resistance, and, moreover, can be used for a valve seat provided in a high function engine.Type: GrantFiled: August 14, 1997Date of Patent: April 20, 1999Assignee: Nippon Piston Ring Co., Ltd.Inventors: Osamu Kawamura, Takashi Kawamoto, Hiroshi Oshige
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Patent number: 5803037Abstract: The invention is directed to a joined type valve seat which is joined into the cylinder head of an aluminum alloy in an internal combustion engine by resistance welding and, in particular, to an improved joined type valve seat superior in strength, rigidity, and abrasion resistance, whereby no cracks are caused when running the engine or when joining the valve seat to the engine block by resistance welding. The valve seat is made of a material having a tensile strength of 300 MPa or above, a radial crushing strength of 500 MPa or above, an elongation of 0.6% or more, a thermal conductivity of 15 W/(m.multidot.K) or above, a coefficient of thermal expansion of 10.times.10-.sup.6 (1/K) or above, and an electric resistivity of 50 .mu..OMEGA..multidot.cm or below.Type: GrantFiled: June 5, 1997Date of Patent: September 8, 1998Assignee: Nippon Piston Ring Co., Ltd.Inventors: Osamu Kawamura, Teruo Takahashi, Arata Kakiuchi
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Patent number: 5778530Abstract: A camshaft made of cast iron containing at least one element selected from the group consisting of Bi, Te, Se, As, Sb and Sn in a total amount of 0.0001 to 0.1 weight %, preferably, 0.001 to 0.1 weight %. The cast iron may further contain at least one elements selected from the group consisting of Ni, Cu and Co in an amount of 0.2 to 5.0 weight %. Furthermore, in the camshaft of the present invention, a carbide area ratio at the sliding surface of the cam lobe portion is not less than 40%, the chilled carbide has an average grain diameter of not more than 15 .mu.m, and the sliding surface of the cam lobe portion has a hardness of not less than HRC 53.Type: GrantFiled: April 10, 1996Date of Patent: July 14, 1998Assignee: Nippon Piston Ring Company, Ltd.Inventors: Yoshikatsu Nakamura, Osamu Kawamura, Teruo Takahashi, Shinichi Yamamoto
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Patent number: 5542990Abstract: A camshaft made of cast iron containing at least one element selected from the group consisting of Bi, Te, Se, As, Sb and Sn in a total amount of 0.0001 to 0.1 weight %, preferably, 0.001 to 0.1 weight %. The cast iron may further contain at least one element selected from the group consisting of Ni, Cu and Co, in an amount of 0.2 to 5.0 weight %. Furthermore, in the camshaft of the present invention, a carbide area ratio at the sliding surface of the cam lobe portion is not less than 40%, the chilled carbide has an average grain diameter of not more than 15 .mu.m, and the sliding surface of the cam lobe portion has a hardness of not less than HRC 53.Type: GrantFiled: June 6, 1994Date of Patent: August 6, 1996Assignee: Nippon Piston Ring Co., Ltd.Inventors: Yoshikatsu Nakamura, Osamu Kawamura, Teruo Takahashi, Shinichi Yamamoto
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Patent number: 5466276Abstract: A secondary hardening type high temperature wear-resistant sintered alloy body comprising 0.4 to 15 wt. % of at least one species of metal carbide forming element which is selected from the group consisting of W, Mo, V, Ti, Nb, Ta and B; 5 to 35 wt. % of at least one species of austenite forming element which is selected from the group consisting of Ni, Co, Cu, and Cr; 0.2 to 1.2 wt. % of C; and 0.04 to 0.2 wt. % of Al consisting essentially the remainder of Fe, wherein the alloy body contains an austenite phase which is capable of martensitic transformation.Type: GrantFiled: July 7, 1993Date of Patent: November 14, 1995Assignees: Honda Giken Kogyo Kabushiki Kaisha, Nippon Piston Ring Co., Ltd.Inventors: Katsuaki Sato, Katsuhiko Tominaga, Tsutomu Saka, Osamu Kawamura, Teruo Takahashi, Arata Kakiuchi
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Patent number: 5370725Abstract: A synchronizer ring having a stabilized friction characteristic relative to a taper cone and having sufficient mechanical strength and anti-abrasion characteristic. The synchronizer ring is made from a ferrous sintered alloy containing 0.2 to 1.0% by weight of carbon, 8.0 to 15.0% by weight of copper, 0.1 to 7.0% by weight of at least one component selected from a group consisting of chromium, manganese, molybdenum, and phosphorus, and balance iron and inevitable impurities. A free copper is precipitated in a matrix of the sintered alloy. Porosity of the sintered alloy is from 3 to 8 vol %.Type: GrantFiled: November 23, 1993Date of Patent: December 6, 1994Assignee: Nippon Piston Ring Co., Ltd.Inventors: Osamu Kawamura, Toshiaki Sato, Takao Omiya
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Patent number: 5337872Abstract: A synchronizer ring for performing synchronous sliding operation with and separating operation from a rotating object member, comprises a ring body having a sliding surface slidable in contact with the object member and a copper alloy flame-coated film formed on the sliding surface. The copper alloy flame-coated film has a Zn equivalent of 40 to 65, a surface porosity of 5 to 30 volume % and a thickness of 70 to 200 .mu.m. The copper alloy flame-coated film also may have a surface roughness (Rz) of 20 to 60 .mu.m, and a ceramic content of 5 to 30 weight %.Type: GrantFiled: June 19, 1992Date of Patent: August 16, 1994Assignees: Nippon Piston Ring Co., Ltd., Nissan Motor Co., Ltd.Inventors: Osamu Kawamura, Shigeo Murata
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Patent number: 5273570Abstract: A secondary hardening type high temperature wear-resistant sintered alloy body comprising 0.4 to 15 wt. % of at least one species of metal carbide forming element which is selected from the group consisting of W, Mo, V, Ti, Nb, Ta and B; 5 to 35 wt. % of at least one species of austenite forming element which is selected from the group consisting of Ni, Co, Cu, and Cr; 0.2 to 1.2 wt. % of C; and 0.04 to 0.2 wt % of the remainder consisting essentially of Fe wherein the alloy body contains an austenite phase which is capable of martensitic transformation.Type: GrantFiled: February 25, 1992Date of Patent: December 28, 1993Assignees: Honda Giken Kogyo Kabushiki Kaisha, Nippon Piston Ring Co., Ltd.Inventors: Katsuaki Sato, Katsuhiko Tominaga, Tsutomu Saka, Osamu Kawamura, Teruo Takahashi, Arata Kakiuchi
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Patent number: 5249661Abstract: A synchronizer ring for performing synchronous sliding operation with and separating operation from a rotating object member, comprises a ring body having a sliding surface in slidable contact with the object member and a molybdenum or molybdenum alloy flame-coated film formed on the sliding surface, the film having a ceramic present in an amount of 5 to 30 weight %. The flame-coated film may have a surface roughness (Rz) of 20 to 60 .mu.m. The flame-coated film may further have a surface porosity of 5 to 30%, preferably 7 to 25% and a film thickness of 70 to 200 .mu.m, preferably 90 to 120 .mu.m.Type: GrantFiled: June 19, 1992Date of Patent: October 5, 1993Assignees: Nippon Piston Ring Co., Ltd., Nissan Motor Co., Ltd.Inventors: Osamu Kawamura, Shigeo Murata
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Patent number: 5195473Abstract: In a process of casting a rocker arm as one piece from high chrome cast iron, a Ca-Si base addition agent is added to the molten metal in an amount of 0.3 to 0.6% by weight. The agent is effective as a globulizer to round high-hardness carbide precipitates directing toward the casting surface.Type: GrantFiled: January 15, 1992Date of Patent: March 23, 1993Assignees: Nissan Motor Company, Ltd., Nippon Piston Ring Co., Ltd.Inventors: Makoto Kano, Ichiro Tanimoto, Osamu Kawamura, Teruo Takahashi