Inventor · disambiguated record
Youichi Takasu
Also filed as: TAKASU YOUICHI
4 granted patents·2 pending applications·15 citations·filing 2002–2007
64Inventor score
Top patents by PatentIndex Score
6 records- 0187US7396797B2Production method of catalyst for fuel cell and of fuel cell, and catalyst for fuel cell and fuel cellFUJITSU LTD·Filed 2005·Granted Jul 8, 2008·15 cites·25 claims
- 0251US2010098475A1Writing instrument and writing instrument setPILOT INK CO LTD·Filed 2007·Application pending·0 cites
- 0348US2006216574A1Fuel batteryFUJITSU LTD·Filed 2006·Application pending·0 cites
- 0445US8500354B2Water-based ballpoint penTAKASU YOUICHI·Filed 2007·Granted Aug 6, 2013·0 cites·7 claims
- 0537US6887921B2Ink follower composition for writing instruments, and process for its productionPILOT INK CO LTD·Filed 2002·Granted May 3, 2005·0 cites·10 claims
- 0632US8491213B2Water-based ballpoint penTAKASU YOUICHI·Filed 2004·Granted Jul 23, 2013·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →