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Dive into the research topics where Mitsufumi Codama is active.

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Featured researches published by Mitsufumi Codama.


Synthetic Metals | 1997

Passive matrix display of organic LEDs

Michio Arai; Kenji Nakaya; Osamu Onitsuka; Tetsushi Inoue; Mitsufumi Codama; Masaru Tanaka; Hiroshi Tanabe

Abstract The lifetime and luminous efficiency of a double-emitting-layer cell have been improved by optimizing materials and cell configuration. The lifetime is estimated at over 50 000 h from 300 cd m −2 . A passive matrix display based on a double-emitting-layer cell with a pixel number of 256 × 64, a pixel size of 0.30 mm × 0.30 mm and a luminance of 100 cd m −2 provides long lifetime and three stable colors, green, yellow and red.


Archive | 2001

Organic electroluminescence display device and producing method thereof

Mitsufumi Codama; Masaru Tanaka


Archive | 1997

Organic electroluminescent color display having color transmitting layers and fluorescence converting layer with improved structure for color conversion efficiency on a color transmitting layer

Mitsufumi Codama; Tetsushi Inoue; Kenji Nakaya; Osamu Onitsuka; Michio Arai


Archive | 1998

ORGANIC EL DEVICE HAVING A HOLE INJECTING ELECTRODE INCLUDING A TRANSPARENT ELECTRODE AND A METAL ELECTRODE

Kenji Nakaya; Mitsufumi Codama


Archive | 1995

Linear array image sensor with thin-film light emission element light source

Mitsufumi Codama; Michio Arai


Archive | 1996

Image desplay device

Ichiro Takayama; Michio Arai; Mitsufumi Codama


Archive | 2000

Organic EL display device having separating groove structures between adjacent elements

Mitsufumi Codama


Archive | 1998

Organic electroluminescent device and preparation method with ITO electrode (111) orientation

Kenji Nakaya; Yasunaga Kagaya; Mitsufumi Codama; Osamu Onitsuka


Archive | 1995

Solid state imaging device with low trap density

Michio Arai; Takashi Inushima; Mitsufumi Codama; Kazushi Sugiura; Ichiro Takayama; Isamu Kobori; Yukio Yamauchi; Naoya Sakamoto


Archive | 1991

Method for making a high contrast liquid crystal display including laser scribing opaque and transparent conductive strips simultaneously

Shunpei Yamazaki; Takeshi Fukada; Mitsunori Sakama; Nobumitsu Amachi; Naoya Sakamoto; Mitsufumi Codama; Takashi Fuki; Ichiro Takayama

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