JP7734061B2 - チョークボード - Google Patents

チョークボード

Info

Publication number
JP7734061B2
JP7734061B2 JP2021197831A JP2021197831A JP7734061B2 JP 7734061 B2 JP7734061 B2 JP 7734061B2 JP 2021197831 A JP2021197831 A JP 2021197831A JP 2021197831 A JP2021197831 A JP 2021197831A JP 7734061 B2 JP7734061 B2 JP 7734061B2
Authority
JP
Japan
Prior art keywords
enamel layer
chalkboard
enamel
glaze
writing
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.)
Active
Application number
JP2021197831A
Other languages
English (en)
Japanese (ja)
Other versions
JP2023083873A5 (https=
JP2023083873A (ja
Inventor
哲 切通
京子 浜原
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.)
JFE Metal Products and Engineering Inc
Original Assignee
JFE Metal Products and Engineering 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 JFE Metal Products and Engineering Inc filed Critical JFE Metal Products and Engineering Inc
Priority to JP2021197831A priority Critical patent/JP7734061B2/ja
Publication of JP2023083873A publication Critical patent/JP2023083873A/ja
Publication of JP2023083873A5 publication Critical patent/JP2023083873A5/ja
Application granted granted Critical
Publication of JP7734061B2 publication Critical patent/JP7734061B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP2021197831A 2021-12-06 2021-12-06 チョークボード Active JP7734061B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021197831A JP7734061B2 (ja) 2021-12-06 2021-12-06 チョークボード

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021197831A JP7734061B2 (ja) 2021-12-06 2021-12-06 チョークボード

Publications (3)

Publication Number Publication Date
JP2023083873A JP2023083873A (ja) 2023-06-16
JP2023083873A5 JP2023083873A5 (https=) 2024-02-22
JP7734061B2 true JP7734061B2 (ja) 2025-09-04

Family

ID=86731609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021197831A Active JP7734061B2 (ja) 2021-12-06 2021-12-06 チョークボード

Country Status (1)

Country Link
JP (1) JP7734061B2 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201808345U (zh) 2010-09-27 2011-04-27 方佳乐 黑板
JP4771880B2 (ja) 2005-09-02 2011-09-14 Ｊｆｅ建材株式会社 映写黒板およびその製造方法
JP2019218217A (ja) 2016-10-20 2019-12-26 Ａｇｃ株式会社 ガラス板
JP2020111506A (ja) 2018-09-28 2020-07-27 ダイセルポリマー株式会社 窒化物系の非磁性セラミックス成形体

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2564439Y2 (ja) * 1993-04-01 1998-03-09 川鉄建材株式会社 チョーク用ボード表面材およびそれを使用したチョーク用ボード
KR20120063425A (ko) * 2010-12-07 2012-06-15 최용택 물 세척 후 바로 필기 가능한 분필 칠판 및 그에 사용되는 분필 칠판 지우개

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4771880B2 (ja) 2005-09-02 2011-09-14 Ｊｆｅ建材株式会社 映写黒板およびその製造方法
CN201808345U (zh) 2010-09-27 2011-04-27 方佳乐 黑板
JP2019218217A (ja) 2016-10-20 2019-12-26 Ａｇｃ株式会社 ガラス板
JP2020111506A (ja) 2018-09-28 2020-07-27 ダイセルポリマー株式会社 窒化物系の非磁性セラミックス成形体

Also Published As

Publication number Publication date
JP2023083873A (ja) 2023-06-16

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