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Featured researches published by Yoshimi Kohayakawa.


Archive | 1983

The Design of an Open View Autorefractometer

Isao Matsumura; Shigeo Maruyama; Yasuyuki Ishikawa; Reiji Hirano; Kazunobu Kobayashi; Yoshimi Kohayakawa

Remarkable progress has been made in the design of automatic refractometers, particularly because of advances in electronics and microcomputers. Various types of automatic refractometers incorporating the advanced technologies have been introduced and they have increased the demand for an instrument that enables us to measure refraction with high reliability.


Archive | 1988

Laser applying apparatus

Yoshimi Kohayakawa; Yasuyuki Numajiri


Archive | 1980

Apparatus for measuring the refractive power of the eye

Isao Matsumura; Yasuyuki Ishikawa; Shigeo Maruyama; Reiji Hirano; Yoshimi Kohayakawa


Archive | 1992

Applied intensity distribution controlling apparatus

Yoshimi Kohayakawa


Archive | 1996

Eye examining apparatus

Yoshimi Kohayakawa


Archive | 1998

Eye fundus photographing apparatus

Yoshimi Kohayakawa


Archive | 1986

Medical television system

Yoshimi Kohayakawa; Kazunobu Kobayashi; Shinya Tanaka; Haruhisa Madate; Takeshi Kitamura


Archive | 1998

Visual function measuring apparatus

Yoshimi Kohayakawa


Archive | 1979

Automatic eye-refractometer

Isao Matsumura; Yasuyuki Ishikawa; Shigeo Maruyama; Reiji Hirano; Yoshimi Kohayakawa


Archive | 1974

Eye fundus camera with focus setting device

Yoshimi Kohayakawa; Isao Matsumura

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