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Foreword

"Co-operation of industries, universities and national labs for basic research" ------- p.288

Tohru Komiyama

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Report on the present and future use of new glass in automotive and ship industries (Summary) ------- p.290

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New Glass Research Topics

Dispersion shifted optical fibers ------- p.297

Ryozo Yamauchi

New porous glass-ceramics ------- p.304

Hideo Hosono

Yoshihiro Abe

A canasite glass-ceramic substrate for hard disc drive units ------- p.311

Minoru Yagi

Characteristics of glass-ceramics and their application to substrates ------- p.317

Hisao Yatsuda

Naoyuki Goto

Kazuyuki Kisi

Ion-implantation into silica glass¡ÝElucidation of structural defects produced during implantation and information obtained through the elucidation¡Ý ------- p.322

Hideo Hosono

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Proceedings of the NGF Seminars20th Seminar on New glass for optoelectronics and Glass database

Technological trends of optoelectronics ------- p.333

Teiji Uchida

Preparation of small size semiconductors-doped glasses by sol-gel process ------- p.339

Masayuki Nogami

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News Digest ------- p.345

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Overseas Topics

International conference on the physical properties of semiconductor microcrystal-doped glasses ------- p.348

Tsunemasa Taguchi

NLO '90 (Hawaii) ------- p.352

Hitoshi Hiraga

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Domestic Topics

"The Ceramic Society of Japan, 1990 annual meeting" ------- p.355

Kohei Fukumi

OEC '90 (Third optoelectronics conference) ------- p.357

Takao Shioda

Topical meeting on optical computing (OC '90) ------- p.361

Kenjiro Hamanaka

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Call on MembersMatsuzaki Shinku ------- p.366

Takeshi Morikawa

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Association News¡¿Notice for Members¡¿Books ¡õ Articles

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