Hirotatsu Okubo

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Nagano-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical component casing, optical device and projector
- Patent number 6,994,438
- Issue date Feb 7, 2006
- Seiko Epson Corporation
- Taisuke Uehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection lens manufacturing apparatus, projection lens manufactur...
- Patent number 6,829,111
- Issue date Dec 7, 2004
- Seiko Epson Corporation
- Shohei Fujisawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical component casing, optical device and projector
- Publication number 20040150800
- Publication date Aug 5, 2004
- SEIKO EPSON CORPORATION
- Taisuke Uehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projection lens manufacturing apparatus, projection lens manufactur...
- Publication number 20040061947
- Publication date Apr 1, 2004
- SEIKO EPSON CORPORATION
- Shohei Fujisawa
- G02 - OPTICS