Patents by Inventor Yasuaki Yamamoto

Yasuaki Yamamoto 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).

  • Publication number: 20220026377
    Abstract: Characteristic X-rays (soft X-rays) from a sample are detected using a spectroscope to thereby generate a plurality of intensity spectrums arranged in order of time sequence. A contour map creation unit creates a contour map by converting, in accordance with a color conversion condition, the plurality of intensity spectrums into a plurality of one-dimensional maps, and arranging the plurality of one-dimensional maps in order of time sequence. When displaying the contour map, a waveform array and a difference contour map may also be displayed. Based on the contour map, a timepoint at which a state change occurs in the sample is determined.
    Type: Application
    Filed: July 21, 2021
    Publication date: January 27, 2022
    Inventors: Yasuaki Yamamoto, Takanori Murano
  • Patent number: 8901197
    Abstract: A modified fluorocarbon resin composition and a modified molded product of fluorocarbon resin composition having an excellent abrasion resistivity and low friction property under high pressure, are provided. The modified fluorocarbon resin composition comprises a blend of fluorocarbon resin and aromatic engineering plastic, which is modified by irradiation of ionizing radiation.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: December 2, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yasuaki Yamamoto, Etsuo Fukuchi, Hiroo Kusano
  • Publication number: 20100324217
    Abstract: A modified fluorocarbon resin composition and a modified molded product of fluorocarbon resin composition having an excellent abrasion resistivity and low friction property under high pressure, are provided. The modified fluorocarbon resin composition comprises a blend of fluorocarbon resin and aromatic engineering plastic, which is modified by irradiation of ionizing radiation.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 23, 2010
    Applicant: HITACHI CABLE FINE-TECH, LTD.
    Inventors: Yasuaki YAMAMOTO, Etsuo FUKUCHI, Hiroo KUSANO
  • Patent number: 7572839
    Abstract: A seal ring (10) of the present invention seals operating oil hermetically and is attached to an annular seal ring groove (16) provided on an outer circumference of a shaft member (12). The seal ring (10) includes fluororesin, modified fluororesin formed by being irradiated with an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less, and synthetic resin having a surface energy ranging from +0 N/cm to 20˜10?5 N/cm inclusive of that of the operating oil.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: August 11, 2009
    Assignees: Nissan Motor Co., Ltd., Hitachi Cable, Ltd.
    Inventors: Tomohito Ota, Tomihito Hashimoto, Yasuaki Yamamoto, Hiroo Kusano
  • Patent number: 7544732
    Abstract: Unmodified fluororesin, modified fluororesin and mica are mixed to provide a modified fluororesin composition. The modified fluororesin composition is molded into a molded article having a predetermined shape. The modified fluororesin composition and the modified fluororesin composition molded article have excellent abrasion resistance in the water and hold original good properties of the fluororesin.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: June 9, 2009
    Assignee: Hitachi Cable, Ltd.
    Inventors: Yasuaki Yamamoto, Etsuo Fukuchi
  • Publication number: 20080300366
    Abstract: A modified fluoropolymer composition according to the present invention is formed by mixing non-modified fluoropolymer, modified fluoropolymer, and polyamide in which a total amount of the modified fluoropolymer and the polyamide is 5 to 50 volume percent of a total amount of the non-modified fluoropolymer, the modified fluoropolymer, and the polyamide; and a volume ratio of the polyamide to the modified fluoropolymer is 0.1 to 2.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 4, 2008
    Inventors: Yasuaki Yamamoto, Etsuo Fukuchi
  • Publication number: 20080213601
    Abstract: A high-water-repellency and high-slidability coating member according to the present invention comprises a base material and a silica coating film made of silica and silane hybrid modified fluororesin, wherein the silica coating film is applied to a surface of the base material.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 4, 2008
    Inventors: Yasuaki YAMAMOTO, Akira SETOGAWA
  • Publication number: 20070149329
    Abstract: A sliding member used in a chain system of an automotive internal combustion engine and made of a resin composition. The resin composition includes a matrix resin which is a thermoplastic resin having a number average molecular weight of not less than 20000; and a fluororesin in an amount ranging from 5 to 40% by mass based on a total amount of the resin composition, the fluororesin having a surface energy ranging from 200 to 400 ?N/cm and a visible light transmittance of not less than 10% at a wavelength of 600 nm.
    Type: Application
    Filed: December 26, 2006
    Publication date: June 28, 2007
    Inventors: Tomohito Ota, Hiroshi Kumagai, Hiroyuki Taniai, Masayuki Tamura, Sadahiko Yamaguchi, Hiroo Kusano, Yasuaki Yamamoto
  • Publication number: 20070075502
    Abstract: A seal ring (10) of the present invention seals operating oil hermetically and is attached to an annular seal ring groove (16) provided on an outer circumference of a shaft member (12). The seal ring (10) includes fluororesin, modified fluororesin formed by being irradiated with an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less, and synthetic resin having a surface energy ranging 14 from +0 N/cm to 20 ˜10?5 N/cm inclusive of that of the operating oil.
    Type: Application
    Filed: September 29, 2004
    Publication date: April 5, 2007
    Inventors: Tomohito Ota, Tomihito Hashimoto, Yasuaki Yamamoto, Hiroo Kusano
  • Publication number: 20060270774
    Abstract: Unmodified fluororesin, modified fluororesin and mica are mixed to provide a modified fluororesin composition. The modified fluororesin composition is molded into a molded article having a predetermined shape. The modified fluororesin composition and the modified fluororesin composition molded article have excellent abrasion resistance in the water and hold original good properties of the fluororesin.
    Type: Application
    Filed: September 27, 2005
    Publication date: November 30, 2006
    Inventors: Yasuaki Yamamoto, Etsuo Fukuchi
  • Publication number: 20060020083
    Abstract: A modified fluoroplastic composition contains a first unmodified fluoroplastic prepared by applying ionizing radiation to the fluoroplastic heated at the melting point or a higher temperature under an inert gas atmosphere, a second unmodified fluoroplastic, and a polyamide-imide resin.
    Type: Application
    Filed: July 23, 2004
    Publication date: January 26, 2006
    Inventors: Yasuaki Yamamoto, Etsuo Fukuchi
  • Patent number: 6989415
    Abstract: A modified fluoroplastic composition contains a first unmodified fluoroplastic prepared by applying ionizing radiation to the fluoroplastic heated at the melting point or a higher temperature under an inert gas atmosphere, a second unmodified fluoroplastic, and a polyamide-imide resin.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: January 24, 2006
    Assignee: Hitachi Cable, Ltd.
    Inventors: Yasuaki Yamamoto, Etsuo Fukuchi
  • Patent number: 6884827
    Abstract: A seal ring seals operating oil hermetically and is attached to an annular seal ring groove provided on an outer circumference of a shaft member. The seal ring comprises fluororesin, metal powder having a hardness equal to or more than that of any of a side surface of the seal ring groove serving as a sliding partner and an inner circumferential surface of a housing engaged relatively rotatable with the outer circumference of the shaft member, and modified fluororesin formed by irradiating an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: April 26, 2005
    Assignees: Nissan Motor Co., Ltd., Hitachi Cable Ltd.
    Inventors: Tomohito Ota, Tomihito Hashimoto, Yasuaki Yamamoto, Hiroo Kusano
  • Patent number: 6843811
    Abstract: A method of manufacturing a sealed battery that is able to keep productivity as high as possible while suppressing cracking incident to welding using an energy beam, such as a laser beam. A material such as an aluminum alloy is used for the external casing and the cover plate. The cover plate bas a rib, which is formed on the outer edge of the cover plate, and a flat part. The external casing rim and the outer edge of the cover plate are welded together, the thickness of the external casing at the rim is made small. A closure cap is fit into the external casing. The closure cap and external casing are welded together and the molten part is gradually cooled.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: January 18, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Wataru Shinohara, Yasuaki Yamamoto, Hiroshi Hosokawa, Yasuhiro Yamauchi
  • Publication number: 20030189295
    Abstract: A seal ring seals operating oil hermetically and is attached to an annular seal ring groove provided on an outer circumference of a shaft member. The seal ring comprises fluororesin, metal powder having a hardness equal to or more than that of any of a side surface of the seal ring groove serving as a sliding partner and an inner circumferential surface of a housing engaged relatively rotatable with the outer circumference of the shaft member, and modified fluororesin formed by irradiating an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 9, 2003
    Applicants: NISSAN MOTOR CO., LTD., HITACHI CABLE, LTD.
    Inventors: Tomohito Ota, Tomihito Hashimoto, Yasuaki Yamamoto, Hiroo Kusano
  • Patent number: 6593593
    Abstract: This invention provides a patterning method for a transparent electrode capable of preventing heat damages and insulation failure or the like even when a ZnO film is used. An ITO film 3 is formed on a transparent substrate 1 by sputtering and the ZnO film 4 is formed on the ITO film 3 by sputtering. Then, regions to be irradiated of the ITO film 3 and the ZnO film 4 are eliminated and patterned by Nd-YAG laser irradiation.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: July 15, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Wataru Shinohara, Yasuaki Yamamoto
  • Patent number: 6573001
    Abstract: The object of the present invention is to provide a sealed battery and a manufacturing method of a sealed battery that suppresses cracking incident to welding using an energy beam, such as a laser beam, when a material such as an aluminum alloy is used for the external casing and the cover plate, with keeping the productivity as high as possible. In order to realize the object, a rib is formed on the cover plate, and the thickness of the external casing at the rim is made small, and the rib and the rim of the external casing are welded together in manufacturing the sealed battery. Then, the closure cap and the external casing are welded together using a laser the energy distribution of which has a flat part in manufacturing the sealed battery to realize the object. In addition, the closure cap and the external casing are welded together while the molten part is gradually cooled in manufacturing the sealed battery to realize the object.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: June 3, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Wataru Shinohara, Yasuaki Yamamoto, Hiroshi Hosokawa, Yasuhiro Yamauchi
  • Patent number: 6552099
    Abstract: A fluororesin heated at a temperature at or above the melting point of the resin is exposed in an inert gas atmosphere having an oxygen concentration of not more than 10 Torr to an ionizing radiation at a radiation dose of 0.1 kGy to 10 MGy to prepare a crosslinked fluororesin. The crosslinked fluororesin is exposed to an ionizing radiation at a radiation dose of 10 kGy to 5 MGy, and is then brought into contact with a functional group-containing organic compound to cause a graft reaction. By virtue of this constitution, a modified fluororesin is provided which has satisfactory mechanical strength and, at the same time, has, imparted thereto, for example, ion-exchange capacity, hydrophilicity, adhesive property, or abrasion resistance.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: April 22, 2003
    Assignee: Hitachi Cable, Ltd
    Inventors: Yasuaki Yamamoto, Hiroo Kusano, Hideki Yagyu, Hajime Nishi
  • Publication number: 20030059677
    Abstract: The object of the present invention is to provide a sealed battery and a manufacturing method of a sealed battery that suppresses cracking incident to welding using an energy beam, such as a laser beam, when a material such as an aluminum alloy is used for the external casing and the cover plate, with keeping the productivity as high as possible. In order to realize the object, a rib is formed on the cover plate, and the thickness of the external casing at the rim is made small, and the rib and the rim of the external casing are welded together in manufacturing the sealed battery. Then, the closure cap and the external casing are welded together using a laser the energy distribution of which has a flat part in manufacturing the sealed battery to realize the object. In addition, the closure cap and the external casing are welded together while the molten part is gradually cooled in manufacturing the sealed battery to realize the object.
    Type: Application
    Filed: September 24, 2002
    Publication date: March 27, 2003
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Wataru Shinohara, Yasuaki Yamamoto, Hiroshi Hosokawa, Yasuhiro Yamauchi
  • Publication number: 20030008935
    Abstract: A fluororesin heated at a temperature at or above the melting point of the resin is exposed in an inert gas atmosphere having an oxygen concentration of not more than 10 Torr to an ionizing radiation at a radiation dose of 0.1 kGy to 10 MGy to prepare a crosslinked fluororesin. The crosslinked fluororesin is exposed to an ionizing radiation at a radiation dose of 10 kGy to 5 MGy, and is then brought into contact with a functional group-containing organic compound to cause a graft reaction. By virtue of this constitution, a modified fluororesin is provided which has satisfactory mechanical strength and, at the same time, has, imparted thereto, for example, ion-exchange capacity, hydrophilicity, adhesive property, or abrasion resistance.
    Type: Application
    Filed: June 8, 2001
    Publication date: January 9, 2003
    Inventors: Yasuaki Yamamoto, Hiroo Kusano, Hideki Yagyu, Hajime Nishi