JPH0252662B2 - - Google Patents

Info

Publication number
JPH0252662B2
JPH0252662B2 JP56185116A JP18511681A JPH0252662B2 JP H0252662 B2 JPH0252662 B2 JP H0252662B2 JP 56185116 A JP56185116 A JP 56185116A JP 18511681 A JP18511681 A JP 18511681A JP H0252662 B2 JPH0252662 B2 JP H0252662B2
Authority
JP
Japan
Prior art keywords
pitch
lead core
lead
component
quinoline
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.)
Expired - Lifetime
Application number
JP56185116A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5887166A (ja
Inventor
Joji Kojima
Koichi Matsumoto
Kenji Koyaizu
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.)
Pilot Precision KK
Original Assignee
Pilot Precision KK
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 Pilot Precision KK filed Critical Pilot Precision KK
Priority to JP18511681A priority Critical patent/JPS5887166A/ja
Publication of JPS5887166A publication Critical patent/JPS5887166A/ja
Publication of JPH0252662B2 publication Critical patent/JPH0252662B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)
JP18511681A 1981-11-18 1981-11-18 鉛芯の製造法 Granted JPS5887166A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18511681A JPS5887166A (ja) 1981-11-18 1981-11-18 鉛芯の製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18511681A JPS5887166A (ja) 1981-11-18 1981-11-18 鉛芯の製造法

Publications (2)

Publication Number Publication Date
JPS5887166A JPS5887166A (ja) 1983-05-24
JPH0252662B2 true JPH0252662B2 (cs) 1990-11-14

Family

ID=16165137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18511681A Granted JPS5887166A (ja) 1981-11-18 1981-11-18 鉛芯の製造法

Country Status (1)

Country Link
JP (1) JPS5887166A (cs)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551668B2 (cs) * 1972-05-17 1980-01-16
JPS5270619A (en) * 1975-12-09 1977-06-13 Pilot Precision Lead incapable of erasing
JPS5325117A (en) * 1976-08-20 1978-03-08 Pentel Kk Method of manufacturing pencil lead
JPS54148623A (en) * 1978-05-12 1979-11-21 Pentel Kk Pencil lead and making method thereof
JPS602999B2 (ja) * 1978-08-11 1985-01-25 パイロツトプレシジヨン株式会社 鉛芯の製造法

Also Published As

Publication number Publication date
JPS5887166A (ja) 1983-05-24

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