Patents by Inventor Jun Iwabuchi

Jun Iwabuchi 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).

  • Patent number: 9618834
    Abstract: A polarization conversion element includes first light transmissive substrates and second light transmissive substrates each of which has a light incident surface and a light exiting surface and which are disposed alternately, polarization separation films, reflection films, and retardation plates. One of each of the polarization separation films and a plasma polymerization film is formed on a first surface of each of the first light transmissive substrate. Each of the reflection films is formed on a second surface of each of the first light transmissive substrate. An adhesive layer is formed on a first surface of each of the second light transmissive substrates. The other of each of the polarization separation films and the plasma polymerization films is formed on a second surface of each of the corresponding second light transmissive substrates.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: April 11, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mitsuru Miyabara, Jun Iwabuchi, Masaki Iwamoto
  • Publication number: 20150103319
    Abstract: A polarization conversion element includes first light transmissive substrates and second light transmissive substrates each of which has a light incident surface and a light exiting surface and which are disposed alternately, polarization separation films, reflection films, and retardation plates. One of each of the polarization separation films and a plasma polymerization film is formed on a first surface of each of the first light transmissive substrate. Each of the reflection films is formed on a second surface of each of the first light transmissive substrate. An adhesive layer is formed on a first surface of each of the second light transmissive substrates. The other of each of the polarization separation films and the plasma polymerization films is formed on a second surface of each of the corresponding second light transmissive substrates.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Inventors: Mitsuru MIYABARA, Jun IWABUCHI, Masaki IWAMOTO
  • Patent number: 7880006
    Abstract: Disclosed are compounds that have excellent insecticidal activity and are usable as agricultural and horticultural insecticides. Compounds represented by formula (I) or agriculturally and horticulturally acceptable acid addition salts thereof have excellent insecticidal activity and are usable as agricultural and horticultural insecticides.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: February 1, 2011
    Assignees: Meiji Seika Kaisha, Ltd., Nippon Kayaku Co., Ltd.
    Inventors: Kazumi Yamamoto, Ryo Horikoshi, Kazuhiko Oyama, Hiroshi Kurihara, Shizuo Shimano, Takaaki Miyake, Hiroki Hotta, Jun Iwabuchi
  • Patent number: 7396960
    Abstract: The present invention provides a sulfonium salt which can serve as a photo-acid-generator, the sulfonium salt not raising the problem of poor compatibility to a photoresist polymer having an acid-dissociable group. The sulfonium salt is represented by formula (1): wherein R1 represents a linear or branched C2 to C9 divalent hydrocarbon group; each of R2 to R5 represents a hydrogen atom or a linear or branched C1 to C3 hydrocarbon group; each of R6 and R7 represents an organic group; R6 and R7 may be linked together to form a divalent organic group; and X? represents an anion.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: July 8, 2008
    Assignee: Toyo Gosei Co., Ltd.
    Inventors: Jun Iwabuchi, Yosuke Osawa
  • Publication number: 20070219368
    Abstract: The present invention provides a sulfonium salt which can serve as a photo-acid-generator, the sulfonium salt not raising the problem of poor compatibility to a photoresist polymer having an acid-dissociable group. The sulfonium salt is represented by formula (1): wherein R1 represents a linear or branched C2 to C9 divalent hydrocarbon group; each of R2 to R5 represents a hydrogen atom or a linear or branched C1 to C3 hydrocarbon group; each of R6 and R7 represents an organic group; R6 and R7 may be linked together to form a divalent organic group; and X? represents an anion.
    Type: Application
    Filed: March 15, 2007
    Publication date: September 20, 2007
    Applicant: TOYO GOSEI CO., LTD.
    Inventors: Jun Iwabuchi, Yosuke Osawa
  • Publication number: 20070203181
    Abstract: Disclosed are compounds that have excellent insecticidal activity and are usable as agricultural and horticultural insecticides. Compounds represented by formula (I) or agriculturally and horticulturally acceptable acid addition salts thereof have excellent insecticidal activity and are usable as agricultural and horticultural insecticides.
    Type: Application
    Filed: August 3, 2005
    Publication date: August 30, 2007
    Applicants: MEIJI SEIKA KAISHA, LTD., NIPPON KAYAKU CO., LTD.
    Inventors: Kazumi Yamamoto, Ryo Horikoshi, Kazuhiko Oyama, Hiroshi Kurihara, Shizuo Shimano, Takaaki Miyake, Hiroki Hotta, Jun Iwabuchi
  • Publication number: 20050288482
    Abstract: The invention relates to a process for the production of sulfoalkyl-containing polymers useful as ion-exchange resins, more particularly a process for the production of sulfoalkyl-containing polymers, characterized by subjecting a polymer having side chains represented by the structural formula (1): [wherein X is a leaving group, and n is an integer of 0 to 6] to replacement of X by acylthio, and then oxidizing the acylthio groups into sulfonic acid groups. According to the process, even the leaving groups (X) contained in the polymer matrix can be nearly quantitatively replaced by sulfonic acid groups, whereby an ion-exchange resin having high ion-exchange capacity can be obtained.
    Type: Application
    Filed: October 10, 2003
    Publication date: December 29, 2005
    Inventors: Masahiro Hamada, Hiroki Hotta, Jun Iwabuchi, Shogo Kawakami, Takemichi Yamasaki, Hisabumi Kobayashi