Inventor

OKA YUJI

IL5 patents

⚠️ This page may combine multiple inventors who share the name “OKA YUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOSOH CORP

2 patents

US9252368B2Feb 2, 2016

Cyclic azine compound having nitrogen-containing condensed aromatic group, method for producing same, and organic electroluminescent device comprising same as constituent component

TOSOH CORP9 citations83

US9780310B2Oct 3, 2017

Heterocyclic compound for organic electroluminescent device and its application

TOSOH CORP3 citations67

KANEKA CORP

1 patent

US7754478B2Jul 13, 2010

Device for cell culture

KANEKA CORP13 citations81

AGROGENE LTD

1 patent

US6201023B1Mar 13, 2001

Methods and compositions to protect crops against plant parasitic nematodes

AGROGENE LTD4 citations54

OKA YUJI

1 patent

US8899149B2Dec 2, 2014

Letterpress printing plate

OKA YUJI0 citations30