Patents by Inventor Kenjiro Fukuda

Kenjiro Fukuda 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: 20210328162
    Abstract: The present invention addresses the problem of providing a flexible electronic element substrate comprising a polyimide layer that has both low ultraviolet transmittance and high visible light transmittance and that is capable of suppressing ultraviolet degradation without any reduction in the performance of an electronic element. In order to solve this problem, the flexible electronic element substrate comprises a polyimide layer that satisfies all of (1) through (3) below: (1) maximum transmittance at a wavelength of 400±5 nm is 70% or higher at a thickness of 5 ?m; (2) the b* value in an L*a*b* color system is 5 or less at a thickness of 5 ?m; and (3) transmittance of light at a wavelength of 350 nm is 10% or less at a thickness of 5 ?m.
    Type: Application
    Filed: March 4, 2019
    Publication date: October 21, 2021
    Applicants: RIKEN, Mitsui Chemicals, Inc.
    Inventors: Kenjiro FUKUDA, Hiroki KIMURA, Takao SOMEYA, Kenichi FUKUKAWA, Masaki OKAZAKI, Tatsuhiro URAKAMI
  • Publication number: 20190363206
    Abstract: Provided is a semiconductor device including a first base material layer that is elastic; a first electrode layer provided on the first base material layer; a semiconductor layer provided on the first electrode layer; a second electrode layer provided on the semiconductor layer; and a second base material layer that is elastic and provided on the second electrode layer, wherein a neutral plane is positioned between a center of the first electrode layer and a center of the second electrode layer in the thickness direction, n indicates the number of layers in the semiconductor device, Ei indicates an elastic modulus of an i-th layer from the one surface of the semiconductor device, among the layers of the semiconductor device, and ti and tj respectively indicate thicknesses of the i-th layer and a j-th layer.
    Type: Application
    Filed: August 1, 2019
    Publication date: November 28, 2019
    Inventors: Kenjiro FUKUDA, Takao SOMEYA
  • Patent number: 10193068
    Abstract: Provided is a method of manufacturing a thin film transistor satisfying the relation of L<5 ?m. The method includes a process of forming a streak portion by performing transfer printing on a support using a release member which is provided with an ink streak portion for forming source and drain electrodes and has mold releasability, and baking the streak portion to thereby form the source electrode constituted by a conductor and the drain electrode constituted by a conductor. In the method manufacturing a thin film transistor in which the source and drain electrodes obtained above, a semiconductor layer, an insulator layer, and a gate electrode constituted by a conductor are laminated, after the baking, in a laminated cross section of the thin film transistor to be manufactured is set to A and a channel length thereof is set to L, the ink streak portion is provided so as to satisfy the condition of L/A?0.05.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: January 29, 2019
    Assignees: DIS Corporation, National University Corporation Yamagata University
    Inventors: Tomoko Okamoto, Kenichi Yatsugi, Yoshinori Katayama, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito
  • Patent number: 9978954
    Abstract: A benzobis(thiadiazole) derivative represented by the following general formula (1): in which R1 represents a linear or branched alkyl group, or any one of the groups of the following formula (2): in which R represents a linear or branched alkyl group; R2 represents a hydrogen atom; and R3 represents a hydrogen atom, a linear or branched alkyl group, or any one of the groups of the formula (2); with the proviso that at least one of R1 and R3 represents any one of the groups of the formula (2); and two R1 groups, two R2 groups, and two R3 groups may be the same as, or different from each other.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 22, 2018
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Shizuo Tokito, Daisuke Kumaki, Masashi Mamada, Kenjiro Fukuda, Yasuhiro Tanaka, Hidetaka Shima, Yasuhiro Yoneda, Harunori Fujita, Kazuaki Kakita, Youji Omata, Natsuko Yamada, Takashi Honma, Toshikazu Machida
  • Patent number: 9773989
    Abstract: The metal thin film production method of the present invention includes, in the following order, the steps of: preparing a substrate (1) having thereon an underlayer (2) formed of an insulating resin; subjecting a surface of the underlayer (2) to a physical surface treatment for breaking bonds of organic molecules constituting the insulating resin; subjecting the substrate (1) to a heat treatment at a temperature of 200° C. or lower; applying a metal nanoparticle ink to the underlayer (2); and sintering metal nanoparticles contained in the metal nanoparticle ink at a temperature equal to or higher than a glass transition temperature of the underlayer (2). A fused layer (4) having a thickness of 100 nm or less is formed between the underlayer (2) and a metal thin film (3) formed by sintering the metal nanoparticles.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: September 26, 2017
    Assignee: NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY
    Inventors: Daisuke Kumaki, Tomohito Sekine, Shizuo Tokito, Kenjiro Fukuda
  • Publication number: 20160372693
    Abstract: The metal thin film production method of the present invention includes, in the following order, the steps of: preparing a substrate (1) having thereon an underlayer (2) formed of an insulating resin; subjecting a surface of the underlayer (2) to a physical surface treatment for breaking bonds of organic molecules constituting the insulating resin; subjecting the substrate (1) to a heat treatment at a temperature of 200° C. or lower; applying a metal nanoparticle ink to the underlayer (2); and sintering metal nanoparticles contained in the metal nanoparticle ink at a temperature equal to or higher than a glass transition temperature of the underlayer (2). A fused layer (4) having a thickness of 100 nm or less is formed between the underlayer (2) and a metal thin film (3) formed by sintering the metal nanoparticles.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 22, 2016
    Inventors: Daisuke Kumaki, Tomohito Sekine, Shizuo Tokito, Kenjiro Fukuda
  • Publication number: 20160276598
    Abstract: A benzobis(thiadiazole) derivative represented by the following general formula (1): in which R1 represents a linear or branched alkyl group, or any one of the groups of the following formula (2): in which R represents a linear or branched alkyl group; R2 represents a hydrogen atom; and R3 represents a hydrogen atom, a linear or branched alkyl group, or any one of the groups of the formula (2); with the proviso that at least one of R1 and R3 represents any one of the groups of the formula (2); and two R1 groups, two R2 groups, and two R3 groups may be the same as, or different from each other.
    Type: Application
    Filed: August 29, 2014
    Publication date: September 22, 2016
    Inventors: Shizuo TOKITO, Daisuke KUMAKI, Masashi MAMADA, Kenjiro FUKUDA, Yasuhiro TANAKA, Hidetaka SHIMA, Yasuhiro YONEDA, Harunori FUJITA, Kazuaki KAKITA, Youji OMATA, Natsuko YAMADA, Takashi HONMA, Toshikazu MACHIDA
  • Publication number: 20160093227
    Abstract: This disclosure describes systems, methods, and computer program products for authoring content for e-learning courses, such as network-enabled (e.g., Web-based) education courses. Graphical user interfaces (GUIs) provide an instructor with user interface elements to manage online course content. Using the GUIs, the instructor can create in-session and self-paced courses that can be delivered over a network to any number of student operated client devices. The instructor is provided a suite of editing tools that can be used to create and edit pages of content for a course, including adding links and multimedia, information pages, posts and course materials. The GUI can include a side bar that can display descriptors that can be used by the instructor to navigate pages of the course.
    Type: Application
    Filed: June 30, 2015
    Publication date: March 31, 2016
    Inventors: Jason D. EDIGER, Eric B. BAILEY, William Martin BACHMAN, Alan C. CANNISTRARO, Michael John NINO, Matthew Kenjiro FUKUDA, Elbert D. CHEN
  • Publication number: 20160072068
    Abstract: Provided is a method of manufacturing a thin film transistor satisfying the relation of L<5 ?m. The method includes a process of forming a streak portion by performing transfer printing on a support using a member to be transferred which is provided with an ink streak portion for forming source and drain electrodes and has mold releasability, and baking the streak portion to thereby form the source electrode constituted by a conductor and the drain electrode constituted by a conductor. In the method manufacturing a thin film transistor in which the source and drain electrodes obtained above, a semiconductor layer, an insulator layer, and a gate electrode constituted by a conductor are laminated, after the baking, in a laminated cross section of the thin film transistor to be manufactured is set to A and a channel length thereof is set to L, the ink streak portion is provided so as to satisfy the condition of L/A?0.05.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventors: Tomoko Okamoto, Kenichi Yatsugi, Yoshinori Katayama, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito
  • Publication number: 20160072086
    Abstract: Provided is a thin film transistor in which at least a support, source and drain electrodes constituted by a conductor, a semiconductor layer, an insulator layer, and a gate electrode constituted by a conductor are laminated in this order. In a laminated cross section of the thin film transistor, a difference between an electrode width of an electrode on a face coming into contact with the support and an electrode width thereof on a face which is opposite to the face coming into contact with the support and comes into contact with the semiconductor layer falls within a range of ±1 ?m. When an arithmetic average roughness in the electrode width of the electrode on the face which is opposite to the face coming into contact with the support and comes into contact with the semiconductor layer is set to Ra, the relation of Ra?10 nm is satisfied.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventors: Tomoko Okamoto, Kenichi Yatsugi, Yoshinori Katayama, Kenjiro Fukuda, Daisuke Kumaki, Shizuo Tokito
  • Patent number: 9099010
    Abstract: This disclosure describes systems, methods, and computer program products for authoring content for e-learning courses, such as network-enabled (e.g., Web-based) education courses. Graphical user interfaces (GUIs) provide an instructor with user interface elements to manage online course content. Using the GUIs, the instructor can create in-session and self-paced courses that can be delivered over a network to any number of student operated client devices. The instructor is provided a suite of editing tools that can be used to create and edit pages of content for a course, including adding links and multimedia, information pages, posts and course materials. The GUI can include a side bar that can display descriptors that can be used by the instructor to navigate pages of the course.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: August 4, 2015
    Assignee: Apple Inc.
    Inventors: Jason David Ediger, Eric B. Bailey, William Martin Bachman, Alan C. Cannistraro, Michael John Nino, Matthew Kenjiro Fukuda, Elbert D. Chen
  • Publication number: 20130095463
    Abstract: This disclosure describes systems, methods, and computer program products for authoring content for e-learning courses, such as network-enabled (e.g., Web-based) education courses. Graphical user interfaces (GUIs) provide an instructor with user interface elements to manage online course content. Using the GUIs, the instructor can create in-session and self-paced courses that can be delivered over a network to any number of student operated client devices. The instructor is provided a suite of editing tools that can be used to create and edit pages of content for a course, including adding links and multimedia, information pages, posts and course materials. The GUI can include a side bar that can display descriptors that can be used by the instructor to navigate pages of the course.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: APPLE INC.
    Inventors: Jason David Ediger, Eric B. Bailey, William Martin Bachman, Alan C. Cannistraro, Michael John Nino, Matthew Kenjiro Fukuda, Elbert D. Chen
  • Publication number: 20130095464
    Abstract: Systems, methods, and computer program products for accessing e-learning courses from an online resource are disclosed. Graphical user interfaces (GUIs) allow students to enroll in online courses or collections of other media (e.g., video files, presentations). The courses can include in-session and self-paced courses. The courses can be delivered over a network to any number and types of student operated devices. An e-learning application running on the student-operated device provides various user interface elements that allow the student to browse, select, enroll and interact with online courses. In some implementations, the GUIs provide a display object (e.g., a virtual spiral-bound notebook) that includes tabs that can be selected by the student to navigate pages of an online course to access information, materials, posts and notes.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: APPLE INC.
    Inventors: Jason David Ediger, Eric B. Bailey, William Martin Bachman, Alan C. Cannistraro, Michael John Nino, Matthew Kenjiro Fukuda, Elbert D. Chen