Hirohumi Takei

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
White balance correcting device for an image sensing apparatus
- Patent number 5,654,753
- Issue date Aug 5, 1997
- Canon Kabushiki Kaisha
- Hirohumi Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color temperature control by comparing chrominance signals with ref...
- Patent number 5,351,080
- Issue date Sep 27, 1994
- Canon Kabushiki Kaisha
- Kenji Kyuma
- G01 - MEASURING TESTING
Information Patent Grant
White balance correction device
- Patent number 5,282,024
- Issue date Jan 25, 1994
- Canon Kabushiki Kaisha
- Hirohumi Takei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color temperature information forming device
- Patent number 5,153,713
- Issue date Oct 6, 1992
- Canon Kabushiki Kaisha
- Kenji Kyuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE