Inventor
BANZAI SATORU
JP8 patents
Patents
8 patentsUS12466210B2Nov 11, 2025
Shaft body of pencil or cosmetic
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US9636940B2May 2, 2017
Writing instrument
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US9856387B2Jan 2, 2018
Color pencil lead
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US11179962B2Nov 23, 2021
Pencil lead
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US11207913B2Dec 28, 2021
Erasing member and erasing tool using the same
MITSUBISHI PENCIL CO0 citations59
US11787225B2Oct 17, 2023
Erasing tool
MITSUBISHI PENCIL CO0 citations50
US9896591B2Feb 20, 2018
Pencil lead
MITSUBISHI PENCIL CO1 citations50
US8349063B2Jan 8, 2013
Pencil lead and production process for the same
MITSUBISHI PENCIL CO0 citations49