Patents by Inventor Saori YAMAKI

Saori YAMAKI 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: 20220251699
    Abstract: A corrosion-resistant member including: a metal base material (10); a corrosion-resistant coating (30) formed on the surface of the base material (10); and a buffer layer (20) formed between the base material (10) and the corrosion-resistant coating (30). The base material (10) contains a main element having the highest mass content ratio among elements contained in the base material (10) and a trace element having a mass content ratio of 1% by mass or less. The corrosion-resistant coating (30) contains at least one kind selected from magnesium fluoride, aluminum fluoride, and aluminum oxide. The buffer layer (20) contains an element of the same kind as the trace element, and the content ratio obtained by energy dispersive X-ray analysis of the element of the same kind as the trace element contained in the buffer layer (20) is 2% by mass or more and 99% by mass or less.
    Type: Application
    Filed: September 3, 2020
    Publication date: August 11, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: So MIYAISHI, Masahiro OKUBO, Masayuki YOSHIMURA, Wataru SAKANE, Teppei TANAKA, Saeko NAKAMURA, Saori YAMAKI
  • Publication number: 20220243072
    Abstract: A corrosion-resistant member including: a metal base material (10); and a corrosion-resistant coating (30) formed on the surface of the base material (10). The corrosion-resistant coating (30) is a stack of a magnesium fluoride layer (31) and an aluminum fluoride layer (32) in order from the base material (10) side. The aluminum fluoride layer (32) has a first crystalline region (32A) and a second crystalline region (32B) containing crystalline aluminum fluoride. The first crystalline region (32A) is a region in which diffraction spot arrays having regularity are observed in an electron beam diffraction image obtained by irradiation with electron beams having a beam diameter of 10 nm to 20 nm. The second crystalline region (32B) is a region in which a plurality of diffraction spots is observed but diffraction spot arrays having regularity are not observed in an electron beam diffraction image obtained by irradiation with the above-described electron beams.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 4, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: So MIYAISHI, Masahiro OKUBO, Masayuki YOSHIMURA, Wataru SAKANE, Teppei TANAKA, Saeko NAKAMURA, Saori YAMAKI
  • Publication number: 20220195605
    Abstract: A corrosion-resistant member including: a metal base material (10); and a corrosion-resistant coating (30) formed on the surface of the base material (10). The corrosion-resistant coating (30) is a stack of a magnesium fluoride layer (31) and an aluminum fluoride layer (32) in order from the base material (10) side. The aluminum fluoride layer (32) is a stack of a first crystalline layer (32A) containing crystalline aluminum fluoride, an amorphous layer (32B) containing amorphous aluminum fluoride, and a second crystalline layer (32C) containing crystalline aluminum fluoride in order from the magnesium fluoride layer (31) side. The first crystalline layer (32A) and the second crystalline layer (32C) are layers in which diffraction spots are observed in electron beam diffraction images obtained by electron beam irradiation and the amorphous layer (32B) is a layer in which a halo pattern is observed in an electron beam diffraction image obtained by electron beam irradiation.
    Type: Application
    Filed: September 3, 2020
    Publication date: June 23, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: So MIYAISHI, Masahiro OKUBO, Masayuki YOSHIMURA, Wataru SAKANE, Teppei TANAKA, Saeko NAKAMURA, Saori YAMAKI
  • Patent number: 8702861
    Abstract: An ink composition includes a water resistant aluminum pigment and water. The water resistant aluminum pigment is formed of an aluminum pigment and a covering film that contains Si and is formed on the surface of the aluminum pigment. A 50% average particle diameter of a corresponding circle obtained by calculation from areas of X-Y plain surfaces of the aluminum pigment is in a range from 0.5 pm to 3 pm. The coverage ratio of the covering film on the surface of the aluminum pigment, calculated from presence ratios of C, O, Al, and Si detected by XPS measurement at an incident angle of 30°, is in a range from 30% to 90%.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: April 22, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takayoshi Kagata, Tsuyoshi Sano, Toshimi Fukui, Saori Yamaki, Junko Nakamoto, Hideki Kawasaki
  • Patent number: 8574357
    Abstract: A water resistant aluminum pigment dispersion includes a water resistant aluminum pigment which is an aluminum pigment covered with a silica film, wherein the water resistant aluminum pigment is formed of an aluminum pigment having an average thickness from 5 nm to 30 nm and a covering film which contains Si and is formed on the surface of the aluminum pigment; and wherein the coverage ratio of the surface of the aluminum pigment by the covering film, calculated from the composition ratio of C, O, Al, and Si detected by XPS measurement at an incident angle of 30°, is in a range from 30% to 90%.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: November 5, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Takayoshi Kagata, Tsuyoshi Sano, Toshimi Fukui, Saori Yamaki, Junko Nakamoto, Hideki Kawasaki
  • Publication number: 20120010361
    Abstract: The present invention provides a curable composition having a proper viscosity and excellent handling properties, and a cured product that is obtainable by curing the curable composition and has excellent transparency, heat resistance and resistance to environment and a low Abbe's number, and further can effectively decrease chromatic aberration by the combined use with a material having a high Abbe's number. The curable composition is characterized by comprising (a) silica fine particles, (b) a (meth)acrylate compound having at least two ethylenic unsaturated groups and having no ring structure, (c) a (meth)acrylate compound having at least two ethylenic unsaturated groups and having an aromatic ring structure and (d) a polymerization initiator, wherein the silica particles (a) are surface treated by a specific silane compound (e) and a specific silane compound (f).
    Type: Application
    Filed: March 10, 2010
    Publication date: January 12, 2012
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoshifumi Urakawa, Shigeru Yamaki, Hideo Miyata, Nobuyuki Mitarai, Saori Yamaki, Nobuaki Ishii
  • Publication number: 20100256284
    Abstract: A water resistant aluminum pigment dispersion includes an aluminum pigment covered with a silica film, which is dispersed in an aqueous solution containing at least one selected from the group consisting of a copolymer A including a structural unit represented by the following general formula (1) or the following formula (2) and a structural unit represented by the following general formula (3), a copolymer B including a structural unit represented by the following general formula (1) or the following formula (2) and a structural unit represented by the following general formula (4), and a copolymer C including a structural unit represented by the following general formula (1) or the following formula (2) and a structural unit represented by the general formula (5)
    Type: Application
    Filed: April 6, 2010
    Publication date: October 7, 2010
    Inventors: Takayoshi KAGATA, Tsuyoshi Sano, Toshimi Fukui, Saori Yamaki, Junko Nakamoto, Hideki Kawasaki
  • Publication number: 20090186281
    Abstract: The present invention provides a method for producing a homogeneous complex oxide sol comprising Si and a metal other than Si as metal elements, and a method for producing a Si-containing hologram recording material using a homogeneous complex oxide sol. A method for producing a complex oxide sol comprising Si and a metal other than Si as metal elements, the method comprising: mixing a silanol compound with an alkoxide compound of a metal other than Si so that the silanol compound is reacted with the alkoxide compound, thereby yielding a precursor of a complex oxide, and adding water to the complex oxide precursor so as to hydrolyze an alkoxyl group bonded to the metal other than Si, and then making the resulting hydrolysate undergo a condensation reaction, thereby forming a complex oxide. A hologram recording medium (11) having a hologram recording layer (21) comprising the hologram recording material obtained by the production method.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Applicant: TDK CORPORATION
    Inventors: Atsuko KOSUDA, Naoki HAYASHIDA, Jiro YOSHINARI, Toshimi FUKUI, Junko NAKAMOTO, Saori YAMAKI, Heidy Hodex Visbal MENDOZA