David Heard

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Kashiwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Color image sensor and a production method of an optical waveguide...
- Patent number 5,943,463
- Issue date Aug 24, 1999
- Sharp Kabushiki Kaisha
- Yutaka Unuma
- G02 - OPTICS
Information Patent Grant
Waveguide type compact optical scanner and manufacturing method the...
- Patent number 5,747,796
- Issue date May 5, 1998
- Sharp Kabushiki Kaisha
- David Heard
- G02 - OPTICS
Information Patent Grant
Method for producing a polymeric optical waveguide
- Patent number 5,716,556
- Issue date Feb 10, 1998
- Sharp Kabushiki Kaisha
- David Heard
- G02 - OPTICS