Tokuji Matsuda

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Patents Grantslast 30 patents

Information Patent Grant
Video projection device having a converter lens attachably and deta...
- Patent number 8,007,116
- Issue date Aug 30, 2011
- Konica Minolta Opto, Inc.
- Tokuji Matsuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection lens unit
- Patent number 7,612,951
- Issue date Nov 3, 2009
- Konica Minolta Opto, Inc.
- Atsuo Masui
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
VIDEO PROJECTION DEVICE
- Publication number 20080297741
- Publication date Dec 4, 2008
- Konica Minolta Opto, Inc.
- Tokuji Matsuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projection lens unit
- Publication number 20070236810
- Publication date Oct 11, 2007
- Atsuo Masui
- G02 - OPTICS