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Dive into the research topics where Hiroki Kusayanagi is active.

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Featured researches published by Hiroki Kusayanagi.


Synthetic Metals | 2001

Chemical polymerization of 3,4-ethylenedioxythiophene in an aqueous medium containing a phenol derivative as an additive

Yasuo Kudoh; Kenji Akami; Hiroki Kusayanagi; Yasue Matsuya

Abstract In this paper, we describe poly(3,4-ethylenedioxythiophene) (PEDOT) prepared in an aqueous medium containing Fe 2 (SO 4 ) 3 and alkylnaphthalenesulfonate as an oxidant and a dopant, respectively. It is found that the addition of p -nitrophenol leads to an improvement of the moisture stability of PEDOT as well as an increase in yield. On the other hand, the initial conductivity of PEDOT decreased slightly. An increase in yield and a decrease in conductivity were also observed when other phenol derivatives with a strong electron-withdrawing substitute, such as m -nitrophenol and p -cyanophenol, were added. The effects of phenol additives on PEDOT were different from those on polypyrrole, in which an increase in conductivity and a slight decrease in yield were observed.


Archive | 2004

Conductive composition precursor, conductive composition, solid electrolytic capacitor, and their manufacturing method

Yasuo Kudoh; Kenji Akami; Hiroki Kusayanagi; Yasue Matsuya


Archive | 1999

Method of making solid electrolyte capacitor having high capacitance

Kenji Akami; Yasuo Kudo; Yasue Matsuya; Hiroki Kusayanagi


Archive | 1992

Photosensitive material for electrophotography and method for making the photosensitive material

Sohji Tsuchiya; Atsushi Omote; Hiroki Kusayanagi; Yoshimasa Itoh; Takahiro Asano


Archive | 2008

Image processing apparatus, image processing program and digital camera

Hiroki Kusayanagi; Masanaga Nakamura; Ikuya Saito; 正永 中村; 郁哉 斎藤; 弘樹 草柳


Archive | 1999

Manufacturing of capacitor

Kenji Akami; Yasuo Kudo; Hiroki Kusayanagi; Yasue Matsuka; 康夫 工藤; 安恵 松家; 弘樹 草柳; 研二 赤見


Archive | 2005

Electrolytic solution for electrolytic capacitor, and electrolytic capacitor using the same

Yukiyasu Sugihara; Keiko Hamada; Hiroyuki Matsuura; Shigetaka Furusawa; Hiroki Kusayanagi; Shinya Taguchi


Archive | 2004

Solid-state electrolytic capacitor and its manufacturing method

Hiroki Kusayanagi; Munehiro Morokuma; Yukihiro Nitta; 幸弘 新田; 弘樹 草柳; 宗宏 諸隈


Archive | 1999

Manufacturing methods for precursor of conductive composition, the conductive composition, and solid electrolytic capacitor

Kenji Akami; Yasuo Kudo; Hiroki Kusayanagi; Yasue Matsuka; 康夫 工藤; 安恵 松家; 弘樹 草柳; 研二 赤見


Archive | 2009

Image processor and electronic still camera

Hiroki Kusayanagi; Masanaga Nakamura; 正永 中村; 弘樹 草柳

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