公开(公告)号：JPS5390997A

公开(公告)日：1978-08-10

申请号：JP534777

申请日：1977-01-19

Applicant: MATSUSHITA REFRIGERATION

Inventor： HINOUCHI KEIJI ,  YAMAMOTO KINICHIROU ,  IGARASHI MINORU ,  TANAKA YASUHIKO ,  KOSHIMA HIDETOSHI ,  ISHIZAKA TAKESHI

IPC: G07F11/70 ,  G07F9/10

公开(公告)号：JPS5376098A

公开(公告)日：1978-07-06

申请号：JP15253376

申请日：1976-12-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： HINOUCHI KEIJI ,  YAMAMOTO KINICHIROU ,  IGARASHI MINORU ,  TANAKA YASUHIKO ,  KOSHIMA HIDETOSHI ,  ISHIZAKA TAKESHI

IPC: G07F11/70 ,  G07F9/10 ,  H05B6/10 ,  H05B6/12

公开(公告)号：JPS5354337A

公开(公告)日：1978-05-17

申请号：JP12907576

申请日：1976-10-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： ISHIZAKA TAKESHI

IPC: F25D21/02

Abstract: PURPOSE:To enable to detect several locations by using optical transmission material of optical glass fiber from light source and light sensitive element in the defrosting control of the refrigerator's frost by incident light variation to light sensitive element.