Inventor · disambiguated record
Heijiro Hirayama
Also filed as: HIRAYAMA HEIJIRO
3 granted patents·9 citations·filing 2012–2019
55Inventor score
Top patents by PatentIndex Score
3 records- 0185US9728726B2Organic electroluminescent element, material for organic electroluminescent element and light emitting device, display device, and illumination device, each employing organic electroluminescent elementUDC IRELAND LTD·Filed 2012·Granted Aug 8, 2017·9 cites·32 claims
- 0246US11357403B2Optical coherence tomography apparatus and measurement methodFUJIFILM CORP·Filed 2019·Granted Jun 14, 2022·0 cites·5 claims
- 0340US9839358B2Light penetration depth evaluation method, performance test method using evaluation method, and optical tomography apparatusFUJIFILM CORP·Filed 2017·Granted Dec 12, 2017·0 cites·20 claims
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