Naoki HIRAYAMA

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical device having a stepwise or tapered light input/output part...
- Patent number 9,869,815
- Issue date Jan 16, 2018
- Oki Electric Industry Co., Ltd.
- Hideki Ono
- G02 - OPTICS
Information Patent Grant
Method of manufacturing an optical device having a stepwise or tape...
- Patent number 9,335,475
- Issue date May 10, 2016
- Oki Electric Industry Co., Ltd.
- Hideki Ono
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL DEVICE HAVING A STEPWISE OR TAPERED LIGHT INPUT/OUTPUT PART...
- Publication number 20160223748
- Publication date Aug 4, 2016
- Oki Electric Industry Co., Ltd.
- Hideki ONO
- G02 - OPTICS
Information Patent Application
OPTICAL DEVICE HAVING A STEPWISE OR TAPERED LIGHT INPUT/OUTPUT PART...
- Publication number 20150086153
- Publication date Mar 26, 2015
- Oki Electric Industry Co., Ltd.
- Hideki ONO
- G02 - OPTICS