Patents by Inventor Takashi Kodama

Takashi Kodama 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: 20140106122
    Abstract: The present invention provides an optical layered body which stably keeps light resistance such as ultraviolet resistance and oxidation resistance while keeping conventional physical properties and optical properties as the outermost surface material of an image display device, which is excellent in an antistatic property and which is capable of providing high image contrast when employed for an image display device. The optical layered body has a light transmitting substrate and a resin layer formed on one surface of the light transmitting substrate and is characterized in that the resin layer contains a binder resin, a polythiophene, an auxiliary conductive agent, and a leveling agent.
    Type: Application
    Filed: May 12, 2011
    Publication date: April 17, 2014
    Applicant: Dai Nippon Printing Co., Ltd
    Inventors: Junya Eguchi, Tasuku Kitamura, Yuki Ichikawa, Takashi Kodama
  • Patent number: 8652783
    Abstract: A circular DNA is provided comprising endogenous DNA common to both genetically modified wheat and non-genetically modified wheat along with one or more pieces of DNA each having a sequence present specifically in a strain of genetically modified wheat. Also provided is a method for determining a mix rate of genetically modified wheat in a test sample.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: February 18, 2014
    Assignees: Nisshin Seifun Group Inc., Incorporated Administrative Agency National Agriculture and Food Research Organization
    Inventors: Akihiro Hino, Takashi Kodama, Mayu Iida, Hirohito Yamakawa, Satomi Nozaki, Katsuyuki Hayakawa
  • Publication number: 20130286478
    Abstract: The present invention provides an antiglare film having an excellent antiglare property and being capable of suitably preventing the occurrence of scintillation and a decrease in contrast. The present invention provides an antiglare film comprising a light-transmitting substrate and a diffusion layer, the diffusion layer having a surface roughness on a surface thereof and being formed on at least one side of the light-transmitting substrate, wherein the diffusion layer contains a cured product of a binder component and organic fine particles (A) dispersed in the cured product of the binder component, and the following expression (1) is satisfied: |NA?nb|>|nA?nb|>0??expression (1), where NA represents a refractive index of the organic fine particles (A) before the organic fine particles (A) are introduced into the diffusion layer, nA represents a refractive index of the organic fine particles (A) in the diffusion layer, and nb represents a refractive index in the cured product of the binder component.
    Type: Application
    Filed: September 30, 2011
    Publication date: October 31, 2013
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Gen Furui, Takashi Kodama, Makoto Honda
  • Publication number: 20130279010
    Abstract: The present invention provides an antiglare film having an excellent antiglare property and being capable of suitably preventing the occurrence of scintillation and a decrease in contrast.
    Type: Application
    Filed: September 30, 2011
    Publication date: October 24, 2013
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Gen Furui, Takashi Kodama, Makoto Honda
  • Publication number: 20130250413
    Abstract: The present invention provides an antiglare film having an excellent antiglare property and being capable of suitably preventing the occurrence of scintillation and a decrease in contrast.
    Type: Application
    Filed: September 30, 2011
    Publication date: September 26, 2013
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Gen Furui, Takashi Kodama, Makoto Honda
  • Patent number: 8502939
    Abstract: There is provided an optical sheet for use as a display device surface, which has a functional layer on at least one side of a base material and has a diffusion factor on the outer surface and/or interior of the functional layer, wherein the relationship represented by the following formula (I) is satisfied. 0.16<S×?<0.70??(I) S: Diffuse regular reflection intensity/regular reflection intensity of base material ?: The diffusion angle exhibiting ? of the diffusion intensity, obtained by extrapolating a straight line connecting the reflection intensity for diffuse regular reflection intensity at ±2 degrees and the reflection intensity for diffuse regular reflection at ±1 degree, to the diffuse regular reflection angle.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: August 6, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Gen Furui, Makoto Honda
  • Patent number: 8493660
    Abstract: An optical layered body including a light-transmitting substrate and an antiglare layer provided on the light-transmitting substrate. The antiglare layer has a surface roughness on the outermost surface. In the optical layered body, a mean spacing of tops of local peak of profile S is 0.045 mm or more and 0.10 mm or less determined by the procedure disclosed in the specification. The optical layered body can attain properties such as an antiglare property, scintillation prevention and black color reproducibility such as gloss blackness simultaneously.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 23, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Gen Furui, Yukimitsu Iwata, Takashi Kodama, Yoshihiro Nishimura, Koichi Mikami
  • Patent number: 8485673
    Abstract: A method for producing an optical layered body which can attain properties such as an antiglare property, scintillation prevention and black color reproducibility such as gloss blackness simultaneously, and a production apparatus of the optical body are provided. The method includes forming an antiglare layer having a surface roughness on the light-transmitting substrate, wherein with respect to the surface roughness, when denoting a mean spacing of profile irregularities of the surface of the optical layered body by Sm, a mean inclination angle of profile irregularities by ?a, and mean roughness of the surface roughness by Rz, Sm is 50 ?m or more and less than 100 ?m, ?a is 0.1° or more and 1.0° or less, and Rz is more than 0.2 ?m and 1.0 ?m or less.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 16, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Gen Furui, Yukimitsu Iwata, Takashi Kodama, Yoshihiro Nishimura, Koichi Mikami
  • Patent number: 8488079
    Abstract: There is provided an optical sheet used as a display device surface as a functional layer on at least one side of a transparent base material. A diffusion factor on the outer surface and/or interior of the functional layer, wherein the relationship represented by the following formula (I) is satisfied. 2.1<Q/U<21.4 (I), where Q (regular transmission intensity) is diffuse transmission intensity at 0 degrees and U (virtual regular transmission intensity is transmission intensity, which is a straight line connecting the transmission intensities at diffusion regular transmission ±2 degrees and diffusion regular transmission ±1 degree, extrapolated from the diffuse regular transmission angle.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: July 16, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Gen Furui, Makoto Honda
  • Publication number: 20130115614
    Abstract: A primer pair is provided capable of amplifying partial sequences of endogenous wheat DNA which are single copies and which allow wheat to be specifically detected without cross-reacting with other plants in a polymerase chain reaction. Also provided is a kit for detecting or assaying an endogenous wheat DNA sequence in a test sample by a polymerase chain reaction.
    Type: Application
    Filed: December 11, 2012
    Publication date: May 9, 2013
    Inventors: Akihiro Hino, Takashi Kodama, Maya Lida, Hirohito Yamakawa, Satomi Nozaki, Katsuyuki Hayakawa
  • Patent number: 8431219
    Abstract: In view of the above state of the art, it is an object of the present invention to provide an optical layered body which can prevent the agglomeration of silica particles and form the desired surface roughness on the surface. An optical layered body comprising a light-transmitting substrate and an antiglare layer having a surface roughness on its surface, wherein said antiglare layer is a resin layer containing an organic particle and a nonspherical silica, and a weight ratio of organic particle/nonspherical silica is from 1/10 to 60/10.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: April 30, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yukimitsu Iwata, Gen Furui, Takashi Kodama, Mariko Hayashi, Sanae Yoshida, Kiyoshi Itoh
  • Patent number: 8422135
    Abstract: An optical sheet for use as a display device surface, has a functional layer on at least one side of a transparent base material and has a diffusion factor on the outer surface and/or interior of the functional layer, wherein the relationship represented by the following formula (I) is satisfied. 0.16<R/V<0.71??(I) R (diffuse regular reflection intensity): Intensity in the direction of the diffuse regular reflection V: Sum of the diffuse reflection intensities measured for each degree between ?? degrees and +? degrees with respect to the direction of diffuse regular reflection when the optical sheet is irradiated with visible light rays.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: April 16, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Gen Furui, Makoto Honda
  • Publication number: 20130057955
    Abstract: The present invention provides an anti-glare film having an excellent anti-glare property, and sufficiently suppressing white muddiness and scintillation, generation of cracks in a process for attaching the films to polarizing elements and a fabrication process of liquid crystal cells, and changes of an anti-glare property over time, even if the film is used in a high definition display.
    Type: Application
    Filed: March 17, 2011
    Publication date: March 7, 2013
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Makoto Honda, Hiroko Suzuki
  • Publication number: 20130027641
    Abstract: To provide an anti-glare sheet for a liquid crystal display device with excellent vivid complexion and blackness and excellent image crispness, that is suitable for combination of dynamic images and still images. An anti-glare sheet for a liquid crystal display device having a diffusion factor in the interior on at least one side of a transparent base material and provided with a functional layer with an irregular surface on the side opposite the transparent base material side, and either having or not having a transparent resin layer with a film thickness of 1.
    Type: Application
    Filed: April 13, 2011
    Publication date: January 31, 2013
    Inventors: Takashi Kodama, Gen Furui, Makoto Honda
  • Patent number: 8343724
    Abstract: A circular DNA is provided comprising endogenous DNA common to both genetically modified wheat and non-genetically modified wheat along with one or more pieces of DNA each having a sequence present specifically in a strain of genetically modified wheat. Also provided is a method for determining a mix rate of genetically modified wheat in a test sample.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: January 1, 2013
    Assignees: Nisshin Seifun Group Inc., Incorporated Administrative Agency National Agriculture and Food Research Organization
    Inventors: Akihiro Hino, Takashi Kodama, Mayu Iida, Hirohito Yamakawa, Satomi Nozaki, Katsuyuki Hayakawa
  • Patent number: 8344117
    Abstract: A circular DNA is provided comprising endogenous DNA common to both genetically modified wheat and non-genetically modified wheat along with one or more pieces of DNA each having a sequence present specifically in a strain of genetically modified wheat. Also provided is a method for determining a mix rate of genetically modified wheat in a test sample.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: January 1, 2013
    Assignees: Nisshin Seifun Group Inc., Incorporated Administrative Agency National Agriculture and Food Research Organization
    Inventors: Akihiro Hino, Takashi Kodama, Mayu Iida, Hirohito Yamakawa, Satomi Nozaki, Katsuyuki Hayakawa
  • Patent number: 8304071
    Abstract: An optical laminate produced by a process for producing an anti-dazzling laminate comprising a light transparent base material and an anti-dazzling layer provided on the light transparent base material. The process includes providing the light transparent base material and forming the anti-dazzling layer having a concavoconvex shape on the light transparent base material, wherein the concavoconvex shape of the anti-dazzling layer satisfies the following requirements: Sm is not less than 100 ?m and not more than 600 ?m, ?a is not less than 0.1 degree and not more than 1.2 degrees, and Rz is more than 0.2 ?m and not more than 1 ?m, wherein Sm represents the average spacing of concavoconvexes or profile irregularities in the anti-dazzling layer; ?a represents the average inclination angle of the concavoconvexes or profile irregularities; and Rz represents the average roughness of the concavoconvexes or profile irregularities.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 6, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yukimitsu Iwata, Koichi Mikami, Yoshihiro Nishimura, Takashi Kodama
  • Patent number: 8264640
    Abstract: There is provided an optical sheet for use as a display device surface, which has a functional layer on at least one side of a transparent base material and has a diffusion factor on the outer surface and/or interior of the functional layer, wherein the relationship represented by the following formula (I) is satisfied. 1.92<?<5.11??(I) ?: The diffusion angle representing 1/10 of the diffusion intensity, obtained by extrapolating a straight line connecting the reflection intensity at diffuse regular reflection ±2 and the reflection intensity at diffuse regular reflection ±1, to the diffuse regular reflection angle.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: September 11, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Gen Furui, Makoto Honda
  • Patent number: 8241737
    Abstract: An optical laminate is provided which has anti-dazzling properties and can realize excellent glare preventive properties and black reproducibility (gradation rendering of black at low brightness). The optical laminate includes a light transparent base material and an anti-dazzling layer or a light diffusion layer provided on the light transparent base material, wherein the outermost surface of the anti-dazzling layer or light diffusion layer has a concavoconvex surface. The anti-dazzling layer satisfies the requirements that Sm is not less than 100 ?m and not more than 600 ?m, ?a is not less than 0.1 degree and not more than 1.2 degrees, and Rz is more than 0.2 ?m and not more than 1 ?m, wherein Sm represents the average spacing of concavoconvexes in the anti-dazzling layer, ?a represents the average inclination angle of the concavoconvexes, and Rz represents the average roughness of the concavoconvexes.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: August 14, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yukimitsu Iwata, Koichi Mikami, Yoshihiro Nishimura, Takashi Kodama
  • Patent number: 8210218
    Abstract: A pneumatic tire which prevents one-sided biased abrasion from being generated, the pneumatic tire having a non-directed rotational direction and comprises lug grooves 20 cutting across a land portion at a shoulder side of a tread portion 16 at both sides in a tire width direction. Each of the lug grooves 20 has a tapered groove portion 21 such that the groove width gradually becomes narrower such that a trapezoidal block portion 22 having a short side at the shoulder side as seen from a tire tread surface side is formed between the lug grooves 20 in a tire peripheral direction. The tapered groove portion 21 is formed so as to extend beyond a one quarter point Q from a tread end T. Accordingly, since in whichever direction the pneumatic tire 10 is rotated, a lug angle ? of a trailing end near the one quarter point Q becomes 90 degrees or less, it is possible to prevent one-sided biased abrasion from being generated.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: July 3, 2012
    Assignee: Bridgestone Corporation
    Inventors: Yoichi Nakamura, Takashi Kodama