Patents by Inventor Takaaki Konno

Takaaki Konno 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).

  • Electrochromic element
    Patent number: 11237447
    Abstract: An electrochromic element is provided that includes a first substrate and a second substrate that are arranged to oppose each other, a first transparent electrode that is formed on a surface of the first substrate facing the second substrate, a second transparent electrode that is formed on a surface of the second substrate facing the first substrate, and a coloration layer that is arranged between the first transparent electrode and the second transparent electrode. The coloration layer includes an electrochromic material and an electrolyte, and a pattern or a concentration gradient of the electrochromic material is formed in at least a part of the coloration layer.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: February 1, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Keiichiroh Yutani, Tomoo Fukuda, Hiroyuki Takahashi, Koh Fujimura, Tohru Yashiro, Takaaki Konno, Noboru Sasa
  • Electrochromic device, method for, manufacturing electrochromic device, and electrochromic light control device
    Patent number: 10488730
    Abstract: An electrochromic device is provided. The electrochromic device includes a laminated body having a curved surface shape and an optical lens on a first surface of the laminated body. The laminated body includes a substrate, a first electrode layer on the substrate, an electrochromic layer in contact with the first electrode layer, a second electrode layer facing the first electrode layer, and a solid electrolyte layer between the first electrode layer and the second electrode layer and in contact with electrochromic layer.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: November 26, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Sukchan Kim, Tohru Yashiro, Yoshihisa Naijo, Kohji Takeuchi, Takaaki Konno, Shun Goto, Yasuhiro Takahashi
  • ELECTROCHROMIC ELEMENT
    Publication number: 20190227401
    Abstract: An electrochromic element is provided that includes a first substrate and a second substrate that are arranged to oppose each other, a first transparent electrode that is formed on a surface of the first substrate facing the second substrate, a second transparent electrode that is formed on a surface of the second substrate facing the first substrate, and a coloration layer that is arranged between the first transparent electrode and the second transparent electrode. The coloration layer includes an electrochromic material and an electrolyte, and a pattern or a concentration gradient of the electrochromic material is formed in at least a part of the coloration layer.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 25, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Keiichiroh YUTANI, Tomoo FUKUDA, Hiroyuki TAKAHASHI, Koh FUJIMURA, Tohru YASHIRO, Takaaki KONNO, Noboru SASA
  • ELECTROCHROMIC DEVICE, METHOD FOR MANUFACTURING ELECTROCHROMIC DEVICE, AND ELECTROCHROMIC LIGHT CONTROL DEVICE
    Publication number: 20180017835
    Abstract: An electrochromic device is provided. The electrochromic device includes a laminated body having a curved surface shape and an optical lens on a first surface of the laminated body. The laminated body includes a substrate, a first electrode layer on the substrate, an electrochromic layer in contact with the first electrode layer, a second electrode layer facing the first electrode layer, and a solid electrolyte layer between the first electrode layer and the second electrode layer and in contact with electrochromic layer.
    Type: Application
    Filed: July 10, 2017
    Publication date: January 18, 2018
    Inventors: Sukchan KIM, Tohru Yashiro, Yoshihisa Naijo, Kohji Takeuchi, Takaaki Konno, Shun Goto, Yasuhiro Takahashi
  • Substrate, fixing belt with substrate, fixing device with fixing belt, and image forming apparatus
    Patent number: 9383698
    Abstract: A fixing belt substrate for an image forming apparatus is prepared by an electroforming process. The fixing belt substrate contains nickel of prescribed weight percent, phosphorus of from about 0.4 weight percent or more to about 0.7 weight percent or less, sulfur of from about 0.003 weight percent or more to about 0.02 weight percent or less, and carbon of from about 0.012 weight percent or more to about 0.03 weight percent or less.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: July 5, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kengo Fujie, Yasuomi Mikami, Yasuhide Fujiwara, Yuzuru Kudoh, Takaaki Konno
  • SUBSTRATE, FIXING BELT WITH SUBSTRATE, FIXING DEVICE WITH FIXING BELT, AND IMAGE FORMING APPARATUS
    Publication number: 20140328610
    Abstract: A fixing belt substrate for an image forming apparatus is prepared by an electroforming process. The fixing belt substrate contains nickel of prescribed weight percent, phosphorus of from about 0.4 weight percent or more to about 0.7 weight percent or less, sulfur of from about 0.003 weight percent or more to about 0.02 weight percent or less, and carbon of from about 0.012 weight percent or more to about 0.03 weight percent or less.
    Type: Application
    Filed: April 24, 2014
    Publication date: November 6, 2014
    Inventors: Kengo FUJIE, Yasuomi Mikami, Yasuhide Fujiwara, Yuzuru Kudoh, Takaaki Konno