JPS6449187A - Tape cassette - Google Patents

Tape cassette

Info

Publication number
JPS6449187A
JPS6449187A JP20537787A JP20537787A JPS6449187A JP S6449187 A JPS6449187 A JP S6449187A JP 20537787 A JP20537787 A JP 20537787A JP 20537787 A JP20537787 A JP 20537787A JP S6449187 A JPS6449187 A JP S6449187A
Authority
JP
Japan
Prior art keywords
sheet
center line
average roughness
lower half
upper half
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP20537787A
Other languages
Japanese (ja)
Inventor
Kenji Kumamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP20537787A priority Critical patent/JPS6449187A/en
Publication of JPS6449187A publication Critical patent/JPS6449187A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To smoothly execute reproducing, FF and REW operation by setting up the average roughness of the center line of a smooth sheet on the upper half side to a value smaller than that of a smooth sheet on the lower half side and reducing the frictional coefficient of the sheets. CONSTITUTION:The average roughness (Ra1) of the center line of the transparent smooth sheet 14 on the upper half 5a side and the average roughness (Ra2) of the center line of the smooth sheet 15 on the lower half 5b side are set up to Ra1<Ra2. Since the frictional coefficient of the sheet 15 on the lower half side is smaller than that of the sheet 14 on the upper half side, torque at the time of traveling the tape 2 having comparatively small tensile force and capable of easily traveling while being stuck to the surface of the sheet 15 can be sharply reduced. Consequently, reproducing, FF and Rew operation or the like can be smoothly executed. The average roughness of the center line is preferably set up to Ra1<=0.15mum and Ra2>=0.2mum (Ra1/Ra2<=0.75) and Ra1<=0.06mum and Ra2>=1.0mum (Ra1/Ra2<=0.06) are more preferable.
JP20537787A 1987-08-19 1987-08-19 Tape cassette Pending JPS6449187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20537787A JPS6449187A (en) 1987-08-19 1987-08-19 Tape cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20537787A JPS6449187A (en) 1987-08-19 1987-08-19 Tape cassette

Publications (1)

Publication Number Publication Date
JPS6449187A true JPS6449187A (en) 1989-02-23

Family

ID=16505818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20537787A Pending JPS6449187A (en) 1987-08-19 1987-08-19 Tape cassette

Country Status (1)

Country Link
JP (1) JPS6449187A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026071A (en) * 1983-07-21 1985-02-08 Mitsui Petrochem Ind Ltd Adhesive for chlorine-containing polymer
JPS6053579A (en) * 1983-09-05 1985-03-27 Mitsui Petrochem Ind Ltd Adhesive for acrylonitrile polymer
US6814894B2 (en) * 2001-02-16 2004-11-09 Tosoh Corporation Lithium-manganese complex oxide, production method thereof and use thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026071A (en) * 1983-07-21 1985-02-08 Mitsui Petrochem Ind Ltd Adhesive for chlorine-containing polymer
JPS6053579A (en) * 1983-09-05 1985-03-27 Mitsui Petrochem Ind Ltd Adhesive for acrylonitrile polymer
US6814894B2 (en) * 2001-02-16 2004-11-09 Tosoh Corporation Lithium-manganese complex oxide, production method thereof and use thereof

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