Patents by Inventor Takafumi Ueno
Takafumi Ueno 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: 7951756Abstract: The present invention relates to a system wherein a pair of relatively movable, facing DLC contact surfaces at least one of which is coated with a DLC film, are further lowered in friction, and the low friction property is stably maintained. The present invention also relates to a lubricant for the system, and a lubricating method. The lubricant for the system having the DLC contact surfaces contains lubricant base oil (A) mainly composed of base oil (X), and sulfur-containing molybdenum complex (B). The base oil (X) is at least one of hydrocracked mineral oils, wax-isomerized mineral oils, and poly-?-olefin base oils, and has a kinematic viscosity of 2 to 20 mm2/s at 100° C., a total aromatic content of not higher than 5 mass %, and a total sulfur content of not higher than 0.005 mass %.Type: GrantFiled: August 6, 2004Date of Patent: May 31, 2011Assignees: Nippon Oil Corporation, Nissan Motor Co., Ltd.Inventors: Shozaburo Konishi, Makoto Kano, Takafumi Ueno, Takao Ishikawa
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Publication number: 20110092402Abstract: A transmission oil composition for an automobile characterized in that it contains a base oil selected from the group consisting of a mineral oil, a synthetic oil and mixtures thereof; and a phosphate compound selected from the group consisting of (A) a zinc dithiophosphate having a hydrocarbon group, (B) a triaryl phosphate (C) a triaryl thiophosphate, and mixtures thereof at 0.1 to 15.0% by mass with respect to the total composition; wherein the composition has a volume resistivity of 1×107 ohm·m or more at 80° C.Type: ApplicationFiled: December 29, 2010Publication date: April 21, 2011Inventors: Takumaru Sagawa, Takafumi Ueno, Hisayuki Wada, Tooru Aoki
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Patent number: 7896851Abstract: Disclosed is a catheter to be percutaneously inserted into a living body lumen, which includes a sheath portion having a lumen extending therein, an insertion member slidably disposed in the lumen of the sheath portion and having a distal end portion capable of protruding from a distal end portion of the sheath portion, an injection needle disposed at the distal end portion of the insertion member for injecting a therapeutic composition into a target tissue, and an electrode disposed at a distal end portion of the catheter for measuring a cardiac action potential.Type: GrantFiled: March 25, 2004Date of Patent: March 1, 2011Assignee: Terumo Kabushiki KaishaInventors: Takafumi Ueno, Takashi Yamamoto, Yoshitaka Oomura, Tetsuo Tanaka
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Patent number: 7799349Abstract: This invention provides methods of forming new blood vessels in diseased or damaged tissue in a subject, methods of increasing blood flow to diseased or damaged tissue in a subject, and methods of increasing angiogenesis in diseased tissue in a subject, which methods comprise: a) isolating autologous bone marrow-mononuclear cells from the subject; and b) transplanting locally into the diseased or damaged tissue an effective amount of the autologous bone-marrow mononuclear cells, thereby forming new blood vessels in the diseased or damaged tissue. The new blood vessels may be capillaries or collateral vessels in ischemic tissue or any site of angiogenesis. Also provided are methods of treating tissue in disease or injury by local transplantation with an effective amount of the autologous bone marrow-mononuclear cells so as to induce vascularization in such diseased tissue.Type: GrantFiled: February 28, 2005Date of Patent: September 21, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Takafumi Ueno, Toyoaki Murohara, Keith Allen Robinson, Nicolas A. F. Chronos, Sam Baldwin, Maria Palasis
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Patent number: 7771821Abstract: A low-friction sliding member such as a piston, a piston ring, a piston skirt section and a cylinder liner section of an internal combustion engine. The low-friction sliding member includes a base material having a surface. A hard carbon thin film is formed at at least a part of the surface of the base material. Here, a tribo-film having at least one functional group selected from the group consisting of ether linkage, oxido and hydroxyl group is formed on the hard carbon thin film when the hard carbon thin film is in slidable contact with an opposite member in presence of an organic oxygen-containing compound.Type: GrantFiled: August 5, 2004Date of Patent: August 10, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Jean Michel Martin, Saihei Kano, Makoto Kano, Yoshiteru Yasuda, Yusuke Okamoto, Yutaka Mabuchi, Takafumi Ueno
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Patent number: 7650976Abstract: A low-friction sliding member in a transmission is at least one of sliding members which are in slidable contact with each other in presence of a transmission oil composition. The low-friction sliding member includes a base material having a sliding section. A hard carbon thin film is coated at a sliding surface of the sliding section of the base material. The hard carbon thin film contains hydrogen in an amount not more than 20 atomic %. The transmission oil composition contains at least one of organic oxygen-containing compound and aliphatic amine compound.Type: GrantFiled: November 28, 2007Date of Patent: January 26, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Takao Ishikawa, Kiyotaka Nakamura, Makoto Kano, Takafumi Ueno
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Publication number: 20080279378Abstract: A transmitter of the present invention includes: an encrypting unit operable to encrypt at least one of digital AV information and descriptor information relating to the digital AV information, and to generate encrypted information; a tool list generating unit operable to generate tool list information having a tool ID indicating a tool required for decrypting the encrypted information; a control graph generating unit operable to generate control graph information indicating an incorporating position of the tool in a receiver; an IPMP protection information generating unit operable to generate IPMP descriptor information for describing the tool list information and the control graph information with a descriptor having a name space indicating IPMP or IPMP protection information; and a packaging unit operable to package the digital AV information including the encrypted information and the IPMP descriptor information, and outputting package information.Type: ApplicationFiled: August 9, 2005Publication date: November 13, 2008Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTDInventor: Takafumi Ueno
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Patent number: 7433471Abstract: Digital Rights Management (DRM) or Intellectual Property Management and Protection (IPMP) for generic digital content wherein a IPMP Control Graph and a REL-IPMP Control Graph carries protection signalling and rights expression data. Both content packaging and terminal processing relating to the above control graph are clearly defined and elaborated.Type: GrantFiled: October 14, 2003Date of Patent: October 7, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Sheng Mei Shen, Zhongyang Huang, Ming Ji, Takafumi Ueno
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Publication number: 20080236984Abstract: A low-friction sliding member in a transmission is at least one of sliding members which are in slidable contact with each other in presence of a transmission oil composition. The low-friction sliding member includes a base material having a sliding section. A hard carbon thin film is coated at a sliding surface of the sliding section of the base material. The hard carbon thin film contains hydrogen in an amount not more than 20 atomic %. The transmission oil composition contains at least one of organic oxygen-containing compound and aliphatic amine compound.Type: ApplicationFiled: November 28, 2007Publication date: October 2, 2008Inventors: Takao ISHIKAWA, Kiyotaka NAKAMURA, Makoto KANO, Takafumi UENO
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Patent number: 7397921Abstract: A transmission apparatus updates the encryption method in the event the encryption method is broken. The tool ID of a decryption tool for encrypted data is acquired, the presence of the tool is confirmed and the tool is then acquired and updated, and encrypted data is processed and transmitted based on rights information associated with the encrypted data.Type: GrantFiled: July 16, 2003Date of Patent: July 8, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Takafumi Ueno
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Publication number: 20080146468Abstract: The present invention relates to a lubricant for lubricating relatively movable, facing contact surfaces at least one of which is coated with DLC, a method of lubricating DLC contact surfaces with this lubricant, and a system having DLC contact surfaces. The lubricant fulfills the following conditions (a) and (b): (a) the lubricant contains a lubricant base oil containing, as a main component, a base oil composed at least one of a hydrocracked mineral oil, a wax-isomerized mineral oil, and a poly-?-olefin base oil. The base oil has a kinematic viscosity of 2 to 20 mm2/s at 100° C., a total aromatic content of not higher than 5 mass %, and a sulfur content of 0.005 mass %; and (b) the lubricant has a sulfur content of not higher than 0.2 mass %.Type: ApplicationFiled: August 6, 2004Publication date: June 19, 2008Applicants: Nippon Oil Corporation, Nissan Motor Co., LTDInventors: Shozaburo Konishi, Makoto Kano, Takafumi Ueno, Takao Ishikawa
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Publication number: 20080076684Abstract: A low-friction sliding mechanism includes a pair of sliding members having respective sliding surfaces slidable relative to each other and an ionic liquid applied to the respective sliding surfaces. At least one of the sliding surfaces has a coating of either a diamond-like carbon material, a diamond material or a combination thereof. The ionic liquid consists of cation and anion components and exists in liquid or gel form at room temperature.Type: ApplicationFiled: September 19, 2007Publication date: March 27, 2008Inventors: Toshikazu NANBU, Yoshiteru Yasuda, Takafumi Ueno, Tokio Sakane, Toshihiro Takekawa
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Publication number: 20080070815Abstract: A low friction sliding mechanism employed in an internal combustion engine of an automotive vehicle. The low friction sliding mechanism includes first and second sliding members which are in slidable contact with each other. At least one of the first and second sliding members has a sliding surface portion whose at least a part is formed of a resinous material containing hydrophilic fine particle. Additionally, a lubricant exists between the first and second sliding members and includes a friction modifier containing at least one of organic oxygen-containing compound and aliphatic amine-based compound.Type: ApplicationFiled: September 18, 2007Publication date: March 20, 2008Inventors: Seiji Kamada, Takafumi Ueno, Tomihito Hashimoto
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Publication number: 20080058233Abstract: A transmission oil composition for an automobile characterized in that it contains a base oil selected from the group consisting of a mineral oil, a synthetic oil and mixtures thereof; and a phosphate compound selected from the group consisting of (A) a zinc dithiophosphate having a hydrocarbon group, (B) a triaryl phosphate (C) a triaryl thiophosphate, and mixtures thereof at 0.1 to 15.0% by mass with respect to the total composition; wherein the composition has a volume resistivity of 1×107 ohm·m or more at 80° C.Type: ApplicationFiled: October 24, 2007Publication date: March 6, 2008Applicants: NISSAN MOTOR CO., LTD., NIPPON OIL CORPORATIONInventors: Takumaru Sagawa, Takafumi Ueno, Hisayuki Wada, Tooru Aoki
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Patent number: 7318514Abstract: A low-friction sliding member in a transmission is at least one of sliding members which are in slidable contact with each other in presence of a transmission oil composition. The low-friction sliding member includes a base material having a sliding section. A hard carbon thin film is coated at a sliding surface of the sliding section of the base material. The hard carbon thin film contains hydrogen in an amount not more than 20 atomic %. The transmission oil composition contains at least one of organic oxygen-containing compound and aliphatic amine compound.Type: GrantFiled: August 19, 2004Date of Patent: January 15, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Takao Ishikawa, Kiyotaka Nakamura, Makoto Kano, Takafumi Ueno
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Publication number: 20070292711Abstract: A sliding mechanism includes a contact area between at least two sliding members. A low friction coating is applied on at least a portion of one of the at least two sliding members at the contact area. The low friction coating is a hard carbon including a diamond like carbon material selected from the group consisting of diamond, amorphous a-C diamond like carbon (DLC), and amorphous a-C:H DLC. A grease is applied on the low friction coating, wherein the grease comprises a base oil selected from the group consisting of ester oils, ether oils and combinations thereof.Type: ApplicationFiled: January 5, 2006Publication date: December 20, 2007Applicant: Nissan Motor Co., Ltd.Inventors: Takafumi Ueno, Yutaka Mabuchi, Makoto Kano, Saburo Abe
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Patent number: 7307048Abstract: A transmission oil composition for an automobile characterized in that it contains a base oil selected from the group consisting of a mineral oil, a synthetic oil and mixtures thereof; and a phosphate compound selected from the group consisting of (A) a zinc dithiophosphate having a hydrocarbon group, (B) a triaryl phosphate (C) a triaryl thiophosphate, and mixtures thereof at 0.1 to 15.0% by mass with respect to the total composition; wherein the composition has a volume resistivity of 1×107 ohm·m or more at 80° C.Type: GrantFiled: May 28, 2002Date of Patent: December 11, 2007Assignees: Nissan Motor Co., Ltd., Nippon Oil CorporationInventors: Takumaru Sagawa, Takafumi Ueno, Hisayuki Wada, Tooru Aoki
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Publication number: 20070255940Abstract: A transmitting apparatus includes an encrypting unit operable to encrypt at least one of digital audio information and digital video information to generate encrypted digital AV information, a tool generating unit operable to generate a tool required to decode the encrypted digital AV information, a tool identification information generating unit operable to generate tool identification information for identifying the tool, a selecting unit operable to select a predetermined tool from a plurality of tools, a transmitting control unit operable to output an instruction for generating the tool identification information to the tool identification information generating unit and outputting an instruction for selecting the predetermined tool to the selecting unit, and a transmitting unit operable to transmit the encrypted digital AV information, the tool identification information, and the tool.Type: ApplicationFiled: November 21, 2005Publication date: November 1, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventor: Takafumi Ueno
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Publication number: 20070060483Abstract: The present invention relates to a system wherein a pair of relatively movable, facing DLC contact surfaces at least one of which is coated with a DLC film, are further lowered in friction, and the low friction property is stably maintained. The present invention also relates to a lubricant for the system, and a lubricating method. The lubricant for the system having the DLC contact surfaces contains lubricant base oil (A) mainly composed of base oil (X), and sulfur-containing molybdenum complex (B). The base oil (X) is at least one of hydrocracked mineral oils, wax-isomerized mineral oils, and poly-?-olefin base oils, and has a kinematic viscosity of 2 to 20 mm2/s at 100° C., a total aromatic content of not higher than 5 mass %, and a total sulfur content of not higher than 0.005 mass %.Type: ApplicationFiled: August 6, 2004Publication date: March 15, 2007Applicants: NIPPON OIL CORPORATION, NISSAN MOTOR CO., LTD.Inventors: Shozaburo Konishi, Makoto Kano, Takafumi Ueno, Takao Ishikawa
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Publication number: 20070041585Abstract: A receiver, which receives an ISMA media stream that is MPEG-4 IPMP-expanded, is provided with processes of: receiving an ISMA media stream containing an ISMA head, contents and an IPMP tool list descriptor that indicates a method for processing the contents; acquiring the IPMP tool list descriptor from the ISMA media stream; making an inspection as to whether or not the tool indicated by the IPMP tool list descriptor is present in the receiver; and when the tool is present, processing the contents by using the tool, while, when the tool is not present, completing the processes without causing any failure.Type: ApplicationFiled: April 30, 2004Publication date: February 22, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Ming Ji, Jing Liu, Sheng Shen, Takafumi Ueno