Invention Grant
- Patent Title: Knock-type writing instrument
- Patent Title (中): 敲门式书写工具
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Application No.: US13055352Application Date: 2009-07-13
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Publication No.: US08434957B2Publication Date: 2013-05-07
- Inventor: Hidehei Kageyama
- Applicant: Hidehei Kageyama
- Applicant Address: JP
- Assignee: Kotobuki & Co., Ltd.
- Current Assignee: Kotobuki & Co., Ltd.
- Current Assignee Address: JP
- Agency: Hiscock & Barclay, LLP
- Priority: JP2008-191227 20080724
- International Application: PCT/JP2009/062660 WO 20090713
- International Announcement: WO2010/010825 WO 20100128
- Main IPC: B43K24/04
- IPC: B43K24/04 ; B43K24/08
Abstract:
A knock-type writing instrument is provided, which allows an easy refill exchange with a simple operation while inhibiting deformation of slits, breakage of a shaft tube, etc., during the refill exchange.
Public/Granted literature
- US20110123250A1 KNOCK-TYPE WRITING INSTRUMENT Public/Granted day:2011-05-26
Information query
