Takeshi Ohtake

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Toner having negative triboelectric chargeability and developing me...
- Patent number 6,218,065
- Issue date Apr 17, 2001
- Canon Kabushiki Kaisha
- Hirohide Tanikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic image and image forming method
- Patent number 6,040,103
- Issue date Mar 21, 2000
- Canon Kabushiki Kaisha
- Manabu Ohno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoconductive film and electrophotographic photosensitive member...
- Patent number 4,673,630
- Issue date Jun 16, 1987
- Canon Kabushiki Kaisha
- Kazuhara Katagiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoconductive film of azulenium salt and electrophotographic phot...
- Patent number 4,629,670
- Issue date Dec 16, 1986
- Canon Kabushiki Kaisha
- Kazuharu Katagiri
- C07 - ORGANIC CHEMISTRY