Patents by Inventor Seiji KAGAMI

Seiji KAGAMI 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).

  • Aqueous ink jet composition
    Patent number: 11866596
    Abstract: An aqueous ink jet composition of the present disclosure includes: at least one dye selected from the group consisting of C.I. Solvent Yellow 160:1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of an ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of a polyalkylene glycol; and an anionic dispersant.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: January 9, 2024
    Inventors: Kenji Kitada, Hiroko Hayashi, Yasunari Ikeda, Hisashi Okamura, Kenta Kikuchi, Hirofumi Hokari, Shinichi Naito, Kazumasa Otsuki, Michio Nakamori, Shinichi Yamamoto, Seiji Kagami, Shigeki Kawada
  • Aqueous ink jet composition
    Patent number: 11591489
    Abstract: An aqueous ink jet composition contains: C.I. Disperse Red 364; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of the ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of the polyalkylene glycol; and an anionic dispersant.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: February 28, 2023
    Inventors: Hisashi Okamura, Hiroko Hayashi, Kenji Kitada, Yasunari Ikeda, Hirofumi Hokari, Shinichi Yamamoto, Michio Nakamori, Shigeki Kawada, Kenta Kikuchi, Kazumasa Otsuki, Seiji Kagami, Shinichi Naito
  • Aqueous ink jet composition
    Patent number: 11384249
    Abstract: An aqueous ink jet composition contains at least one disperse dye selected from the group consisting of C.I. Disperse Yellow 54, C.I. Disperse Red 60, and C.I. Disperse Blue 359, and a styrene maleic acid-based dispersing agent represented by Formula (1).
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: July 12, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kenji Kitada, Hiroko Hayashi, Yasunari Ikeda, Hirofumi Hokari, Hisashi Okamura, Kenta Kikuchi, Seiji Kagami, Shinichi Naito
  • Aqueous Ink Jet Composition
    Publication number: 20200239718
    Abstract: An aqueous ink jet composition of the present disclosure includes: at least one dye selected from the group consisting of C.I. Solvent Yellow 160:1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of an ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of a polyalkylene glycol; and an anionic dispersant.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 30, 2020
    Inventors: Kenji KITADA, Hiroko HAYASHI, Yasunari IKEDA, Hisashi OKAMURA, Kenta KIKUCHI, Hirofumi HOKARI, Shinichi NAITO, Kazumasa OTSUKI, Michio NAKAMORI, Shinichi YAMAMOTO, Seiji KAGAMI, Shigeki KAWADA
  • Aqueous Ink Jet Composition
    Publication number: 20200207999
    Abstract: An aqueous ink jet composition contains: C.I. Disperse Red 364; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of the ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of the polyalkylene glycol; and an anionic dispersant.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Hisashi OKAMURA, Hiroko HAYASHI, Kenji KITADA, Yasunari IKEDA, Hirofumi HOKARI, Shinichi YAMAMOTO, Michio NAKAMORI, Shigeki KAWADA, Kenta KIKUCHI, Kazumasa OTSUKI, Seiji KAGAMI, Shinichi NAITO
  • AQUEOUS INK JET COMPOSITION
    Publication number: 20190300736
    Abstract: An aqueous inkjet composition contains at least one disperse dye selected from the group consisting of C.I. Disperse Yellow 54, C.I. Disperse Red 60, and C.I. Disperse Blue 359, and a styrene maleic acid-based dispersing agent represented by Formula (1).
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kenji KITADA, Hiroko HAYASHI, Yasunari IKEDA, Hirofumi HOKARI, Hisashi OKAMURA, Kenta KIKUCHI, Seiji KAGAMI, Shinichi NAITO