Patents by Inventor Kenichiro Hatayama

Kenichiro Hatayama 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: 11965801
    Abstract: A measurement system includes a measurement device including a light source, and a first power meter, and one or a plurality of connection members each configured to optically connect a pair of optical fiber lines of the plurality of optical fiber lines. A first optical fiber line of the pair of optical fiber lines includes a first end and a second end, a second optical fiber line of the pair of optical fiber lines includes a third end and a fourth end, the one or plurality of connection members optically connect the second end to the fourth end, the light source causes testing light to be incident on the first end, and the first power meter measures first intensity of first output light output from the third end by causing the testing light to propagate through the pair of optical fiber lines.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 23, 2024
    Assignees: SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuya Masuda, Tomohiko Ueda, Kenichiro Otsuka, Tsuneari Ito, Tetsufumi Tsuzaki, Yoshifumi Hishikawa, Hitoshi Hatayama
  • Patent number: 7190354
    Abstract: A touch panel comprising: a cellulose film provide with a hard coat layer having a pencil hardness of 2H or more; a polarizing film; a retardation plate; a first transparent conductive film; a second transparent conductive film; and a substrate, in this order, wherein the first and second transparent conductive films are provided so as to face to each other, and the cellulose film, the hard coat layer, the polarizing film, the retardation plate and the first transparent conductive film define a movable substrate.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: March 13, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Tanaka, Katsumi Inoue, Akihiro Matsufuji, Kenichiro Hatayama, Kentaro Shiratsuchi
  • Patent number: 6686031
    Abstract: A hard coat film comprising; a transparent support; and a hard coat layer thereon; the hard coat layer containing surface-treated inorganic fine particles and a crosslinked binder polymer; the surface treatment being carried out using, as a surface treatment agent, an organic compound containing an anionic functional group or an organometallic compound; and the binder polymer being formed by crosslinking a radiation polymerizable compound. A display device is also disclosed wherein a hard coat film having antireflection properties is formed on the display surface thereof.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: February 3, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akihiro Matsufuji, Kiyokazu Hashimoto, Tsukasa Yamada, Kenichiro Hatayama, Yuuzou Muramatsu
  • Publication number: 20040017364
    Abstract: A touch panel comprising: a cellulose film provide with a hard coat layer having a pencil hardness of 2H or more; a polarizing film; a retardation plate; a first transparent conductive film; a second transparent conductive film; and a substrate, in this order, wherein the first and second transparent conductive films are provided so as to face to each other, and the cellulose film, the hard coat layer, the polarizing film, the retardation plate and the first transparent conductive film define a movable substrate.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 29, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Makoto Tanaka, Katsumi Inoue, Akihiro Matsufuji, Kenichiro Hatayama, Kentaro Shiratsuchi
  • Patent number: 6480250
    Abstract: A low-reflection transparent conductive multi layer film to be attached to the front panel of cathode-ray tubes or plasma displays comprising, in the order described, a transparent substrate, a hard coat layer, a transparent conductive layer containing particles comprising at least one of a metal and a metal oxide, and at least one transparent protective layer which has anti-smudge properties, has a refractive index different from that of the transparent conductive layer and comprises a resin having a high dielectric power factor.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: November 12, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akihiro Matsufuji, Kenichiro Hatayama, Takahiro Moto, Yasuo Mukunoki
  • Publication number: 20020018886
    Abstract: A hard coat film comprising; a transparent support; and a hard coat layer thereon; the hard coat layer containing surface-treated inorganic fine particles and a crosslinked binder polymer; the surface treatment being carried out using, as a surface treatment agent, an organic compound containing an anionic functional group or an organometallic compound; and the binder polymer being formed by crosslinking a radiation polymerizable compound. A display device is also disclosed wherein a hard coat film having antireflection properties is formed on the display surface thereof.
    Type: Application
    Filed: February 22, 2001
    Publication date: February 14, 2002
    Inventors: Akihiro Matsufuji, Kiyokazu Hashimoto, Tsukasa Yamada, Kenichiro Hatayama, Yuuzou Muramatsu