Inventor · disambiguated record
Yuji Oka
Also filed as: OKA YUJI
5 granted patents·1 pending application·29 citations·filing 1997–2022
76Inventor score
Top patents by PatentIndex Score
6 records- 0191US9252368B2Cyclic azine compound having nitrogen-containing condensed aromatic group, method for producing same, and organic electroluminescent device comprising same as constituent componentTOSOH CORP·Filed 2012·Granted Feb 2, 2016·9 cites·11 claims
- 0276US9780310B2Heterocyclic compound for organic electroluminescent device and its applicationTOSOH CORP·Filed 2014·Granted Oct 3, 2017·3 cites·5 claims
- 0371US7754478B2Device for cell cultureKANEKA CORP·Filed 2004·Granted Jul 13, 2010·13 cites·20 claims
- 0455US2024130361A1Nonflammable liquid composition and its applicationsTOSOH CORP·Filed 2022·Application pending·0 cites
- 0552US8899149B2Letterpress printing plateOKA YUJI·Filed 2008·Granted Dec 2, 2014·0 cites·2 claims
- 0637US6201023B1Methods and compositions to protect crops against plant parasitic nematodesAGROGENE LTD·Filed 1997·Granted Mar 13, 2001·4 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Yuji Oka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →