JPH0252663B2 - - Google Patents

Info

Publication number
JPH0252663B2
JPH0252663B2 JP56214716A JP21471681A JPH0252663B2 JP H0252663 B2 JPH0252663 B2 JP H0252663B2 JP 56214716 A JP56214716 A JP 56214716A JP 21471681 A JP21471681 A JP 21471681A JP H0252663 B2 JPH0252663 B2 JP H0252663B2
Authority
JP
Japan
Prior art keywords
pitch
lead
tar
lead core
binder
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
JP56214716A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58113274A (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 JP21471681A priority Critical patent/JPS58113274A/ja
Publication of JPS58113274A publication Critical patent/JPS58113274A/ja
Publication of JPH0252663B2 publication Critical patent/JPH0252663B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)
JP21471681A 1981-12-26 1981-12-26 鉛芯の製造法 Granted JPS58113274A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21471681A JPS58113274A (ja) 1981-12-26 1981-12-26 鉛芯の製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21471681A JPS58113274A (ja) 1981-12-26 1981-12-26 鉛芯の製造法

Publications (2)

Publication Number Publication Date
JPS58113274A JPS58113274A (ja) 1983-07-06
JPH0252663B2 true JPH0252663B2 (enrdf_load_html_response) 1990-11-14

Family

ID=16660432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21471681A Granted JPS58113274A (ja) 1981-12-26 1981-12-26 鉛芯の製造法

Country Status (1)

Country Link
JP (1) JPS58113274A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2726198B2 (ja) * 1992-06-03 1998-03-11 三菱鉛筆株式会社 非焼成色鉛筆芯とその製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551668B2 (enrdf_load_html_response) * 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
JPS58113274A (ja) 1983-07-06

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