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Japanese Journal of Applied Physics | 1993

Low-Energy Electronic States Related to Contact Electrification of Pendant-Group Polymers: Photoemission and Contact Potential Difference Measurement

Kazuhiko Yanagida; Okimasa Okada; Kozo Oka

Low-energy electronic states, 3-6 eV below the vacuum level, relevant to contact electrification of pendant-group polymers were investigated by means of photoemission and contact potential difference (CPD) measurements under atmospheric conditions. As a result, it was shown that the thresholds of photoemission of the polymers are related to their highest occupied molecular orbital (HOMO) levels derived from modified neglect of diatomic overlap (MNDO) molecular orbital calculation, and that the thresholds exist near the energy corresponding to their work function inferred from CPD measurement. Furthermore, it was found that the contact electrification of the polymers is related to their threshold of photoemission. These results are interpreted in terms of a molecular ion model proposed by Duke et al. [Phys. Rev. B 18 (1978) 5717].


Archive | 1997

Carrier for electrostatic latent-image developer, electrostatic latent-image developer and image forming process

Kazuhiko Yanagida; Susumu Yoshino; Takashi Imai; Koichi Takahashi; Suk Kwon Kim


Archive | 2004

Electrostatic charge image developing carrier, electrostatic charge image developer, method for manufacturing electrostatic charge image developing carrier, and image forming apparatus

Soichiro Kitagawa; Tsutomu Kubo; Yasuo Matsumura; Kazuhiko Yanagida; 久保 勉; 聡一郎 北川; 保雄 松村; 和彦 柳田


Archive | 2005

Electrophotographic toner and method for forming image by using the same

Yasuo Matsumura; Shigeru Seitoku; Kazuhiko Yanagida; 保雄 松村; 和彦 柳田; 滋 清徳


Archive | 2005

Electrophotographic toner, electrophotographic developer and image formation method using the same

Masahiro Takagi; Kazuhiko Yanagida


Archive | 2003

Color toner, electrostatic latent image developer, image forming method, and image producing device

Takahisa Fujii; Yasuo Matsumura; Kazuhiko Yanagida; Manabu Serizawa; Hidekazu Yaguchi; Masaki Nakamura; Daisuke Ishizuka


Archive | 2003

Toner for developing electrostatic images, process for preparing toner for developing electrostatic images, developer for developing electrostatic images and images forming method

Yasuo Matsumura; Kazuhiko Yanagida; Manabu Serizawa; Hidekazu Yaguchi; Takahisa Fujii; Tsutomu Kubo; Shigeru Seitoku


Archive | 2012

ELECTROSTATIC IMAGE DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, IMAGE FORMING METHOD, TONER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

Sumiaki Yamasaki; Kazuhiko Yanagida; Susumu Yoshino; Satoshi Hiraoka; Shigeru Seitoku; Hirofumi Shiozaki


Archive | 2004

Magenta toner for developing electrostatic images, process for production thereof, developer and image-forming method

Hidekazu Yaguchi; Yasuo Matsumura; Kazuhiko Yanagida; Manabu Serizawa; Tsutomu Kubo; Shigeru Seitoku


Archive | 1997

Electrostatic latent image developer, carrier therefor, and method and device for image forming

Ishi Kin; Yasuo Yamamoto; Kazuhiko Yanagida; 保夫 山本; 和彦 柳田

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