Patents Examined by April C Inyard
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Patent number: 7666529Abstract: A magnetic recording medium having a first magnetic layer, a spacer layer, and a second magnetic layer, in this order, wherein the spacer layer includes a non-magnetic layer and a thickness of the spacer layer is selected to establish anti-ferromagnetic coupling between the first magnetic layer and the second magnetic layer, and a thickness of both the first and second magnetic layers are less than a critical thickness for formation of stripe domains in the magnetic layers is disclosed.Type: GrantFiled: September 22, 2005Date of Patent: February 23, 2010Assignee: Seagate Technology LLCInventors: Erol Girt, Charles Frederick Brucker, Alexander Yulievich Dobin
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Patent number: 7645502Abstract: An anti-dazzling film is provided, which includes a triacetylcellulose film and an anti-dazzling layer provided on the triacetylcellulose film. The anti-dazzling layer includes a coating composition including an acrylic light transparent resin, plastic light transparent fine particles, and a leveling agent including a copolymer including (meth)acrylic acid repeating units containing at least one perfluoroalkyl group having 8 or more carbon atoms and (meth)acrylic acid repeating units having at least one bornane ring. A low-refractive index layer is provided on the anti-dazzling film to constitute an antireflection film.Type: GrantFiled: October 6, 2004Date of Patent: January 12, 2010Assignees: Dai Nippon Printing Co., Ltd., Fuji Photo Film Co., Ltd.Inventors: Koichi Mikami, Yukimitsu Iwata, Norinaga Nakamura, Naohiro Matsunaga
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Patent number: 7638184Abstract: To provide a laminated glass for a vehicle window which can prevent the temperature increase in a vehicle. A laminated glass for a vehicle window which comprises a glass plate 12 to be disposed on the car exterior side when the laminated glass 1 is assembled in a vehicle, and an infrared reflection film 21 provided on the side of an infrared shielding interlayer 30 having infrared shielding fine particles dispersed therein, of the glass plate 12, wherein the reflectance to light at all wavelengths of from 900 to 1,100 nm is from 30 to 50%, the absorptivity to light at all wavelengths of from 1,100 to 1,300 nm is from 35 to 60%, and the transmittance to light at all wavelengths of from 900 to 1,500 nm is at most 30%.Type: GrantFiled: February 19, 2008Date of Patent: December 29, 2009Assignee: Asahi Glass Company, LimitedInventors: Kazuya Yaoita, Takahira Miyagi, Yoshihito Katayama, Yukio Kimura
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Patent number: 7629040Abstract: To provide a laminated glass for a vehicle window which can prevent the temperature increase in a vehicle. An infrared reflection glass plate which is a glass plate with an infrared reflection film, wherein the infrared reflection film has a stacked coating film (X) having a coating film (1) made of a high refractive index inorganic material having a refractive index of at least 1.90 and a coating film (2) made of a low refractive index inorganic material having a refractive index of at most 1.56 alternately stacked in this order from the glass plate side; the total number of the coating film (1) and the coating film (2) is at least 3; and the geometrical thickness of the coating film (1) is from 70 to 150 nm and the geometrical thickness of the coating film (2) is from 100 to 200 nm.Type: GrantFiled: February 13, 2008Date of Patent: December 8, 2009Assignee: Asahi Glass Company, LimitedInventors: Kazuya Yaoita, Takahira Miyagi, Yoshihito Katayama, Yukio Kimura
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Patent number: 7629041Abstract: The present invention relates to diffuser sheets for LCD applications encompassing at least one light-scattering polymethyl methacrylate layer which comprises a polymethyl methacrylate matrix and also from 0.5 to 59.5% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, of spherical scattering particles (A) whose median size V50 is in the range from 0.1 to 40 ?m, and whose refractive index differs from that of the polymethyl methacrylate matrix by a value in the range from 0.02 to 0.2, and from 0.5 to 59.5% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, of spherical particles (B) whose median size V50 is in the range from 10 to 150 ?m and whose refractive index differs from that of the polymethyl methacrylate matrix by a value in the range from 0 to 0.Type: GrantFiled: May 12, 2004Date of Patent: December 8, 2009Assignee: Evonik Roehm GmbHInventors: Markus Parusel, Jann Schmidt, Herbert Groothues
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Patent number: 7579095Abstract: A structure has a substrate and a layer containing a magnetic material dispersed in a nonmagnetic material, the magnetic material being comprised of first crystal particles having an easy magnetization axis crytsllographically oriented in the direction of the normal line of the substrate and forming columns perpendicular to the substrate and second crystal particles having a crystallographic orientation in a direction different from the direction of the crystallographic orientation in the first crystal particles, and the ratio of the second crystal particles to the entire crystal particles in the columns ranging from 10% to 50% by weight.Type: GrantFiled: April 26, 2007Date of Patent: August 25, 2009Assignee: Canon Kabushiki KaishaInventors: Shigeru Ichihara, Toru Den