Hideyuki Ohyi

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Patents Grantslast 30 patents

Information Patent Grant
Surface emission type electron source and drawing device
- Patent number 8,232,711
- Issue date Jul 31, 2012
- Crestec Corporation
- Akira Kojima
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron beam applying apparatus and drawing apparatus
- Patent number 7,929,396
- Issue date Apr 19, 2011
- Ricoh Company, Ltd.
- Takeshi Miyazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Electron beam applying apparatus and drawing apparatus
- Patent number 7,522,510
- Issue date Apr 21, 2009
- Ricoh Company, Ltd.
- Takeshi Miyazaki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
SURFACE EMISSION TYPE ELECTRON SOURCE AND DRAWING DEVICE
- Publication number 20100072875
- Publication date Mar 25, 2010
- Akira Kojima
- B82 - NANO-TECHNOLOGY
Information Patent Application
ELECTRON BEAM APPLYING APPARATUS AND DRAWING APPARATUS
- Publication number 20090180373
- Publication date Jul 16, 2009
- Takeshi Miyazaki
- G11 - INFORMATION STORAGE
Information Patent Application
Electron beam applying apparatus and drawing apparatus
- Publication number 20070085003
- Publication date Apr 19, 2007
- Takeshi Miyazaki
- G11 - INFORMATION STORAGE