Patents by Inventor Kiyohiro Takachi

Kiyohiro Takachi 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: 11390810
    Abstract: A liquid crystal composition containing a side-chain liquid crystal polymer, a polymerizable liquid crystal compound, and a photopolymerization initiator, wherein the side-chain liquid crystal polymer contains a constitutional unit which is represented by the following general formula (I) and a liquid crystal constitutional unit which contains a side chain including a liquid crystal moiety:
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: July 19, 2022
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Shunsuke Irie, Ken-ichi Okuyama, Kiyohiro Takachi, Mami Motooka, Terutaka Takahashi
  • Patent number: 11332670
    Abstract: A side-chain liquid crystal polymer including two or more kinds of constitutional units represented by the following general formula (I) and a liquid crystal constitutional unit which contains a side chain including a liquid crystal moiety, where the two or more kinds of constitutional units represented by the general formula (I) include a constitutional unit (a) represented by the general formula (I) and a constitutional unit (b) which is represented by the general formula (I) and is different from the constitutional unit (a) in carbon atom number of a linking group represented by L1 or L1?.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: May 17, 2022
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Ken-ichi Okuyama, Kiyohiro Takachi, Shunsuke Irie, Mami Motooka, Terutaka Takahashi
  • Publication number: 20210189239
    Abstract: A liquid crystal composition containing a side-chain liquid crystal polymer, a polymerizable liquid crystal compound, and a photopolymerization initiator, wherein the side-chain liquid crystal polymer contains a constitutional unit which is represented by the following general formula (I) and a liquid crystal constitutional unit which contains a side chain including a liquid crystal moiety:
    Type: Application
    Filed: September 25, 2018
    Publication date: June 24, 2021
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Shunsuke IRIE, Ken-ichi OKUYAMA, Kiyohiro TAKACHI, Mami MOTOOKA, Terutaka TAKAHASHI
  • Publication number: 20210041603
    Abstract: Provided are a functional film capable of achieving adhesion between a hard coat layer and a functional layer as well as achieving desired optical properties, and a polarizing plate and an image display device, both of which include the above functional film. One aspect of the present invention provides a functional film including a hard coat layer containing a binder resin and plural inorganic particles, and a functional layer closely attached to the front surface of the hard coat layer, wherein the hard coat layer includes a first region including a layer zone, in which denseness of the inorganic particles is 60% or more, from the front surface to a depth of 100 nm in the hard coat layer, and a second region, in which denseness of the inorganic particles is 59% or less, below a depth of 100 nm from the front surface in the hard coat layer.
    Type: Application
    Filed: February 27, 2019
    Publication date: February 11, 2021
    Inventors: Satoru KANKE, Kiyohiro TAKACHI, Kazutoshi ISHIDA, Toshiki IWASAKI, Masaharu SATO, Hiroaki OOMORI, Tomohiro OGAWA
  • Publication number: 20190136134
    Abstract: A side-chain liquid crystal polymer includes two or more kinds of constitutional units represented by the following general formula (I) and a liquid crystal constitutional unit which contains a side chain including a liquid crystal moiety. The two or more kinds of constitutional units represented by the general formula (I) include a constitutional unit (a) represented by the general formula (I) and a constitutional unit (b) which is represented by the general formula (I) and is different from the constitutional unit (a) in carbon atom number of a linking group represented by L1 or L1?. Each of the symbols in the general formula (I) is as described in the DESCRIPTION.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 9, 2019
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Ken-ichi OKUYAMA, Kiyohiro TAKACHI, Shunsuke IRIE, Mami MOTOOKA, Terutaka TAKAHASHI
  • Publication number: 20170103777
    Abstract: A substrate for suspension comprises a metallic substrate, an insulating layer formed on the metallic substrate, a conductor layer formed on the insulating layer, and a cover layer covering the conductor layer. The insulating layer and the cover layer are formed from different materials, whose coefficients of hygroscopic expansion are in the range between 3×10?6/% RH and 30×10?6/% RH. The difference between the coefficients of hygroscopic expansion of the two materials is 5×10?6/% RH or less.
    Type: Application
    Filed: December 23, 2016
    Publication date: April 13, 2017
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Yoichi HITOMI, Shinji KUMON, Terutoshi MOMOSE, Katsuya SAKAYORI, Kiyohiro TAKACHI, Yoichi MIURA, Tsuyoshi YAMAZAKI
  • Patent number: 9564153
    Abstract: A substrate for suspension comprises a metallic substrate, an insulating layer formed on the metallic substrate, a conductor layer formed on the insulating layer, and a cover layer covering the conductor layer. The insulating layer and the cover layer are formed from different materials, whose coefficients of hygroscopic expansion are in the range between 3×10?6/% RH and 30×10?6/% RH. The difference between the coefficients of hygroscopic expansion of the two materials is 5×10?6/% RH or less.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: February 7, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoichi Hitomi, Shinji Kumon, Terutoshi Momose, Katsuya Sakayori, Kiyohiro Takachi, Yoichi Miura, Tsuyoshi Yamazaki
  • Publication number: 20150079424
    Abstract: A substrate for suspension comprises a metallic substrate, an insulating layer formed on the metallic substrate, a conductor layer formed on the insulating layer, and a cover layer covering the conductor layer. The insulating layer and the cover layer are formed from different materials, whose coefficients of hygroscopic expansion are in the range between 3×10?6/% RH and 30×10?6/% RH. The difference between the coefficients of hygroscopic expansion of the two materials is 5×10?6/% RH or less.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Inventors: Yoichi HITOMI, Shinji KUMON, Terutoshi MOMOSE, Katsuya SAKAYORI, Kiyohiro TAKACHI, Yoichi MIURA, Tsuyoshi YAMAZAKI
  • Patent number: 8927122
    Abstract: A substrate for suspension comprises a metallic substrate, an insulating layer formed on the metallic substrate, a conductor layer formed on the insulating layer, and a cover layer covering the conductor layer. The insulating layer and the cover layer are formed from different materials, whose coefficients of hygroscopic expansion are in the range between 3×10?6/% RH and 30×10?6/% RH. The difference between the coefficients of hygroscopic expansion of the two materials is 5×10?6/% RH or less.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: January 6, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoichi Hitomi, Shinji Kumon, Terutoshi Momose, Katsuya Sakayori, Kiyohiro Takachi, Yoichi Miura, Tsuyoshi Yamazaki
  • Publication number: 20100047626
    Abstract: A substrate for suspension 10 comprises a metallic substrate 1, an insulating layer 2 formed on the metallic substrate 1, a conductor layer 3 formed on the insulating layer 2, and a cover layer 4 covering the conductor layer 3. The insulating layer 2 and the cover layer 4 are formed from different materials, whose coefficients of hygroscopic expansion are in the range between 3×10?6/% RH and 30×10?6/% RH. The difference between the coefficients of hygroscopic expansion of the two materials is 5×10?6/% RH or less.
    Type: Application
    Filed: April 14, 2008
    Publication date: February 25, 2010
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Yoichi Hitomi, Shinji Kumon, Terutoshi Momose, Katsuya Sakayori, Kiyohiro Takachi, Yoichi Miura, Tsuyoshi Yamazaki