Inventor · disambiguated record
Toshihiko Kageyama
Also filed as: KAGEYAMA HIDEHEI · KAGEYAMA TOSHIHIKO
10 granted patents·153 citations·filing 1978–2002
91Inventor score
Files withKOTOBUKI & CO LTD10
Top patents by PatentIndex Score
10 records- 0185US4200977ACutter knifeKOTOBUKI & CO LTD·Filed 1978·Granted May 6, 1980·47 cites·5 claims
- 0282US5022774AWriting tool with eraser dispenserKOTOBUKI & CO LTD·Filed 1988·Granted Jun 11, 1991·24 cites·3 claims
- 0381US5370471AWriting tool, with eraser dispenserKOTOBUKI & CO LTD·Filed 1992·Granted Dec 6, 1994·30 cites·14 claims
- 0469US5683191AWriting toolKOTOBUKI & CO LTD·Filed 1994·Granted Nov 4, 1997·17 cites·4 claims
- 0564US5062727AWriting toolKOTOBUKI & CO LTD·Filed 1988·Granted Nov 5, 1991·12 cites·4 claims
- 0656US5207522AKnock type mechanical pencil with retractable eraserKOTOBUKI & CO LTD·Filed 1991·Granted May 4, 1993·10 cites·3 claims
- 0748US5236270AWriting tool for advancing lead with eraser dispenserKOTOBUKI & CO LTD·Filed 1992·Granted Aug 17, 1993·7 cites·3 claims
- 0839US5700101AWriting toolKOTOBUKI & CO LTD·Filed 1994·Granted Dec 23, 1997·4 cites·3 claims
- 0936US6687959B2Clip attaching structureKOTOBUKI & CO LTD·Filed 2002·Granted Feb 10, 2004·0 cites·2 claims
- 1031US4583874AKnock-type propelling pencil with storage cartridgeKOTOBUKI & CO LTD·Filed 1982·Granted Apr 22, 1986·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →