Invention Grant
- Patent Title: Color pencil lead
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Application No.: US15119018Application Date: 2015-02-20
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Publication No.: US09856387B2Publication Date: 2018-01-02
- Inventor: Satoru Banzai
- Applicant: Mitsubishi Pencil Company, Limited
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
- Current Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Buchanan, Ingersoll & Rooney PC
- Priority: JP2014-036573 20140227
- International Application: PCT/JP2015/054831 WO 20150220
- International Announcement: WO2015/129583 WO 20150903
- Main IPC: C09D13/00
- IPC: C09D13/00 ; B43K19/02 ; B43K19/18 ; B43K21/00 ; C09D101/02 ; C09D129/14 ; C09D161/06 ; C08K3/34 ; C08K5/00 ; C08K7/24

Abstract:
Provided is a color pencil lead which is excellent in a hue, a light resistance and a strength and can be erased with an eraser and which is suited to pencil leads for mechanical pencils and wooden pattern holder pencils. The above color pencil lead is characterized by containing a resin in which a dye is dissolved or included in a pencil lead body.
Public/Granted literature
- US20160362574A1 Color Pencil Lead Public/Granted day:2016-12-15
Information query
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