Patents by Inventor Chiho Tanaka

Chiho Tanaka 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).

  • Electrode structure, liquid crystal display device, projective display device, and method of manufacturing electrode structure
    Patent number: 11971633
    Abstract: An electrode structure includes: a plurality of pixel electrodes arranged separately from each other; and a plurality of dielectric layers laminated in a first direction with respect to the plurality of pixel electrodes, in which the plurality of dielectric layers includes: a first dielectric layer that spreads over the plurality of pixel electrodes in a direction intersecting with the first direction; and a second dielectric layer that includes dielectric material having a refractive index higher than that of the first dielectric layer, sandwiches the first dielectric layer together with the plurality of pixel electrodes, and has a slit at a position overlapping space between pixel electrodes adjacent when viewed from the first direction.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 30, 2024
    Assignees: SONY SEMICONDUCTOR SOLUTIONS CORPORATION, SONY GROUP CORPORATION
    Inventors: Takashi Sakairi, Tomoaki Honda, Tsuyoshi Okazaki, Keiichi Maeda, Chiho Araki, Katsunori Dai, Shunsuke Narui, Kunihiko Hikichi, Kouta Fukumoto, Toshiaki Okada, Takuma Matsuno, Yuu Kawaguchi, Yuuji Adachi, Koichi Amari, Hideki Kawaguchi, Seiya Haraguchi, Takayoshi Masaki, Takuya Fujino, Tadayuki Dofuku, Yosuke Takita, Kazuhiro Tamura, Atsushi Tanaka
  • Carboxylate compounds, liquid crystal materials, liquid crystal compositions and liquid crystal elements
    Patent number: 5776365
    Abstract: There is provided a carboxylic acid compound represented by the following formulae (I) to (IV): ##STR1## a liquid crystal material consisting of the carboxylic acid ester compound, a liquid crystal composition comprising the carboxylic acid ester compound, and a liquid crystal element using the carboxylic acid ester compound. There can be obtained advantages such as low operating temperature, high speed switching, very small electric power consumption, and high-stable contrast.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 7, 1998
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yuuichirou Tatsuki, Shinichi Nishiyama, Junichi Kawabata, Tooru Yamanaka, Chiho Tanaka
  • Carboxylate compounds, liquid crystal materials liquid crystal compositions and liquid crystal elements
    Patent number: 5725798
    Abstract: There is provided a carboxylic acid compound represented by the following formulae (I) to (IV): ##STR1## a liquid crystal material consisting of the carboxylic acid ester compound, a liquid crystal composition comprising the carboxylic acid ester compound, and a liquid crystal element using the carboxylic acid ester compound. There can be obtained advantages such as low operating temperature, high speed switching, very small electric power consumption, and high-stable contrast.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: March 10, 1998
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yuuichirou Tatsuki, Shinichi Nishiyama, Junichi Kawabata, Tooru Yamanaka, Chiho Tanaka