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Osamu Koizumi

Sony Broadcast & Professional Research Laboratories

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Archive | 1984

Flexible disc cassette

Tsuneo Nemoto; Osamu Koizumi; Koukichi Sugawara

Archive | 1995

Storage case for tape cassette

Osamu Koizumi

Archive | 1993

Tape cartridge having a transparent panel covering the tape sensing opening

Masanori Sato; Osamu Koizumi

Archive | 1993

Tape cassette with tape tension controlled by grease of a specified range of viscosity

Osamu Koizumi; Kengo Saito; Kazuo Sasaki; Masayuki Itabashi

Archive | 1991

TAPE CASSETTE HAVING TAPERED GUIDE PINS PRESS-FITTED INTO CASSETTE WALL AND GREASE LUBRICANT FOR ROLLERS

Osamu Koizumi; Kengo Saito; Kazuo Sasaki; Masayuki Itabashi

Archive | 1991

Tape cartridge with increased tape capacity

Taizo Aizawa; Osamu Koizumi; Kengo Saito; Takayasu Hirano

Archive | 1995

Method for producing tape leaders for hubs

Osamu Koizumi; Takayasu Hirano

Archive | 1994

Belt driven cartridge for guiding tape with reduced offtracking

Masanori Sato; Osamu Koizumi

Archive | 1984

SHUTTER OF SHEET-LIKE RECORDING MEDIUM CASSETTE AND ITS MANUFACTURE

Masakazu Funayama; Kazuo Igari; Osamu Koizumi; Tsuneo Nemoto

Archive | 1997

Reproducing apparatus with auxiliary shutter configuration

Osamu Koizumi; Takanobu Iwama

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