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Foreword ------- p.2

Yoshizoh Ishizuka

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Report on production technologies and applications of new glass in Japan (Summary) ------- p.4

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New Glass Research Topics

Laser glasses; features and applications ------- p.11

Hisayoshi Toratani

Silica glass image fiber and its application ------- p.15

Yoshiki Chigusa

Chemical durability of glass ------- p.22

Hiroshi Kawazoe

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Introductory Lecture

New glass prepared by the sol-gel process ------- p.37

Masayuki Nogami

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Feature Articles Future Computers and Materials

Computer technology: today and future ------- p.43

Yasuhiko Arai

Neurocomputers and neural networks ------- p.54

Kunihiko Fukushima

Optical computer: an introduction ------- p.61

Satoshi Ishihara

Devices and materials for optical neurocomputers ------- p.68

Jun Ohta

Yoshikazu Nitta

Kazuo Kyuma

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News Digest ------- p.77

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Overseas Topics

At the Fraunfoher Institut ------- p.79

Masayuki Yamane

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Domestic Topics

IOOC'89 (17th International Conference on Integrated Optics and Optical Fibers Communication) ------- p.82

Ryozo Yamauchi

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Call on Members"Sumita Optical Glass, Inc." ------- p.85

Takeshi Morikawa

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Association News

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Books¡õ Articles

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