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Inventor
SASAKI TOSHIKAZU
JP
4 patents
⚠️ This page may combine multiple inventors who share the name “SASAKI TOSHIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOTOBUKI & CO LTD
3 patents
US11090969B2
Aug 17, 2021
Mechanical pencil
KOTOBUKI & CO LTD
1 citations
60
USD1057017S
Jan 7, 2025
Refill for a ball-point pencil
KOTOBUKI & CO LTD
0 citations
59
US12090777B2
Sep 17, 2024
Writing instrument refills and writing instrument
KOTOBUKI & CO LTD
0 citations
59
SONY CORP
1 patent
US5662984A
Sep 2, 1997
Magnetic recording medium
SONY CORP
4 citations
58